| LICENSE | NULL | GPL | COMPILE-TIME | NULL | GLOBAL | VARCHAR | The type of license the server has | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| PERFORMANCE_SCHEMA | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Enable the performance schema. | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| SQL_MODE | STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION | STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION | COMPILE-TIME | STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION | SESSION | SET | Sets the sql mode | NULL | NULL | NULL | REAL_AS_FLOAT,PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,IGNORE_BAD_TABLE_OPTIONS,ONLY_FULL_GROUP_BY,NO_UNSIGNED_SUBTRACTION,NO_DIR_IN_CREATE,POSTGRESQL,ORACLE,MSSQL,DB2,MAXDB,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,MYSQL323,MYSQL40,ANSI,NO_AUTO_VALUE_ON_ZERO,NO_BACKSLASH_ESCAPES,STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ALLOW_INVALID_DATES,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,HIGH_NOT_PRECEDENCE,NO_ENGINE_SUBSTITUTION,PAD_CHAR_TO_FULL_LENGTH,EMPTY_STRING_IS_NULL,SIMULTANEOUS_ASSIGNMENT,TIME_ROUND_FRACTIONAL | NO | REQUIRED | NULL |
| BINLOG_FORMAT | MIXED | MIXED | COMPILE-TIME | MIXED | SESSION | ENUM | What form of binary logging the master will use: either ROW for row-based binary logging, STATEMENT for statement-based binary logging, or MIXED. MIXED is statement-based binary logging except for those statements where only row-based is correct: those which involve user-defined functions (i.e. UDFs) or the UUID() function; for those, row-based binary logging is automatically used. | NULL | NULL | NULL | MIXED,STATEMENT,ROW | NO | REQUIRED | NULL |
| GTID_BINLOG_STATE | NULL | | COMPILE-TIME | NULL | GLOBAL | VARCHAR | The internal GTID state of the binlog, used to keep track of all GTIDs ever logged to the binlog. | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| PERFORMANCE_SCHEMA_EVENTS_WAITS_HISTORY_SIZE | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Number of rows per thread in EVENTS_WAITS_HISTORY. Use 0 to disable, -1 for automated sizing. | -1 | 1.024 | 1 | NULL | YES | REQUIRED | NULL |
| DELAYED_INSERT_LIMIT | NULL | 100 | COMPILE-TIME | 100 | GLOBAL | BIGINT UNSIGNED | After inserting delayed_insert_limit rows, the INSERT DELAYED handler will check if there are any SELECT statements pending. If so, it allows these to execute before continuing. | 1 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_MAX_COND_CLASSES | NULL | 90 | COMPILE-TIME | 90 | GLOBAL | BIGINT UNSIGNED | Maximum number of condition instruments. | 0 | 256 | 1 | NULL | YES | REQUIRED | NULL |
| WSREP_TRX_FRAGMENT_SIZE | 0 | 0 | COMPILE-TIME | 0 | SESSION | BIGINT UNSIGNED | Size of transaction fragments for streaming replication (measured in units of 'wsrep_trx_fragment_unit') | 0 | 2.147.483.647 | 1 | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_MAX_COND_INSTANCES | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Maximum number of instrumented condition objects. Use 0 to disable, -1 for automated sizing. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| INNODB_FLUSH_LOG_AT_TIMEOUT | NULL | 1 | COMPILE-TIME | 1 | GLOBAL | INT UNSIGNED | Write and flush logs every (n) second. | 0 | 2.700 | 0 | NULL | NO | OPTIONAL | NULL |
| PERFORMANCE_SCHEMA_MAX_RWLOCK_INSTANCES | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Maximum number of instrumented RWLOCK objects. Use 0 to disable, -1 for automated sizing. | -1 | 104.857.600 | 1 | NULL | YES | REQUIRED | NULL |
| INNODB_ENCRYPT_TEMPORARY_TABLES | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Enrypt the temporary table data. | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| PERFORMANCE_SCHEMA_MAX_PREPARED_STATEMENTS_INSTANCES | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Maximum number of instrumented prepared statements. Use 0 to disable, -1 for automated scaling. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_MAX_TABLE_INSTANCES | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Maximum number of instrumented tables. Use 0 to disable, -1 for automated sizing. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| MAX_STATEMENT_TIME | 0,00 | 0,00 | COMPILE-TIME | 0,00 | SESSION | DOUBLE | A query that has taken more than max_statement_time seconds will be aborted. The argument will be treated as a decimal value with microsecond precision. A value of 0 (default) means no timeout | 0 | 31.536.000 | NULL | NULL | NO | REQUIRED | NULL |
| PROXY_USER | | NULL | COMPILE-TIME | NULL | SESSION ONLY | VARCHAR | The proxy user account name used when logging in | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| PERFORMANCE_SCHEMA_MAX_MUTEX_INSTANCES | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Maximum number of instrumented MUTEX objects. Use 0 to disable, -1 for automated sizing. | -1 | 104.857.600 | 1 | NULL | YES | REQUIRED | NULL |
| SSL_CERT | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | X509 cert in PEM format (implies --ssl) | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| LONG_QUERY_TIME | 10,00 | 10,00 | COMPILE-TIME | 10,00 | SESSION | DOUBLE | Alias for log_slow_query_time. Log all queries that have taken more than long_query_time seconds to execute to the slow query log file. The argument will be treated as a decimal value with microsecond precision | 0 | 31.536.000 | NULL | NULL | NO | REQUIRED | NULL |
| INNODB_STATS_TRANSIENT_SAMPLE_PAGES | NULL | 8 | COMPILE-TIME | 8 | GLOBAL | INT UNSIGNED | The number of leaf index pages to sample when calculating transient statistics (if persistent statistics are not used, default 8) | 1 | 4.294.967.295 | 0 | NULL | NO | REQUIRED | NULL |
| HAVE_OPENSSL | NULL | YES | COMPILE-TIME | NULL | GLOBAL | VARCHAR | Comparing have_openssl with have_ssl will indicate whether YaSSL or openssl was used. If YaSSL, have_ssl will be YES, but have_openssl will be NO. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| SLOW_LAUNCH_TIME | NULL | 2 | COMPILE-TIME | 2 | GLOBAL | BIGINT UNSIGNED | If creating the thread takes longer than this value (in seconds), the Slow_launch_threads counter will be incremented | 0 | 31.536.000 | 1 | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_MAX_RWLOCK_CLASSES | NULL | 50 | COMPILE-TIME | 50 | GLOBAL | BIGINT UNSIGNED | Maximum number of rwlock instruments. | 0 | 256 | 1 | NULL | YES | REQUIRED | NULL |
| LOG_SLOW_MAX_WARNINGS | 10 | 10 | COMPILE-TIME | 10 | SESSION | BIGINT UNSIGNED | Max numbers of warnings printed to slow query log per statement | 0 | 1.000 | 1 | NULL | NO | REQUIRED | NULL |
| COLLATION_CONNECTION | utf8mb4_general_ci | utf8mb4_general_ci | COMPILE-TIME | utf8mb4_general_ci | SESSION | ENUM | The collation of the connection character set | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| INNODB_ADAPTIVE_HASH_INDEX_PARTS | NULL | 8 | COMPILE-TIME | 8 | GLOBAL | BIGINT UNSIGNED | Number of InnoDB Adaptive Hash Index Partitions (default 8) | 1 | 512 | 0 | NULL | YES | OPTIONAL | NULL |
| PERFORMANCE_SCHEMA_ACCOUNTS_SIZE | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Maximum number of instrumented user@host accounts. Use 0 to disable, -1 for automated sizing. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| THREAD_POOL_OVERSUBSCRIBE | NULL | 3 | COMPILE-TIME | 3 | GLOBAL | INT UNSIGNED | How many additional active worker threads in a group are allowed. | 1 | 1.000 | 1 | NULL | NO | REQUIRED | NULL |
| LOG_QUERIES_NOT_USING_INDEXES | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | Log queries that are executed without benefit of any index to the slow log if it is open. Same as log_slow_filter='not_using_index' | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| HAVE_RTREE_KEYS | NULL | YES | COMPILE-TIME | NULL | GLOBAL | VARCHAR | If RTREE indexes (used for spatial indexes) are available, will be set to YES, otherwise will be set to NO. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| EVENT_SCHEDULER | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | ENUM | Enable the event scheduler. Possible values are ON, OFF, and DISABLED (keep the event scheduler completely deactivated, it cannot be activated run-time) | NULL | NULL | NULL | OFF,ON,DISABLED,ORIGINAL | NO | OPTIONAL | NULL |
| INNODB_FT_NUM_WORD_OPTIMIZE | NULL | 2.000 | COMPILE-TIME | 2.000 | GLOBAL | BIGINT UNSIGNED | InnoDB Fulltext search number of words to optimize for each optimize table call | 1.000 | 10.000 | 0 | NULL | NO | OPTIONAL | NULL |
| PERFORMANCE_SCHEMA_MAX_INDEX_STAT | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Maximum number of index statistics for instrumented tables. Use 0 to disable, -1 for automated scaling. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| WSREP_DRUPAL_282555_WORKAROUND | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Enable a workaround to handle the cases where inserting a DEFAULT value into an auto-increment column could fail with duplicate key error | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| PERFORMANCE_SCHEMA_MAX_MUTEX_CLASSES | NULL | 210 | COMPILE-TIME | 210 | GLOBAL | BIGINT UNSIGNED | Maximum number of mutex instruments. | 0 | 256 | 1 | NULL | YES | REQUIRED | NULL |
| TMP_MEMORY_TABLE_SIZE | 16.777.216 | 16.777.216 | COMPILE-TIME | 16.777.216 | SESSION | BIGINT UNSIGNED | If an internal in-memory temporary table exceeds this size, MariaDB will automatically convert it to an on-disk MyISAM or Aria table. Same as tmp_table_size. | 0 | 9.223.372.036.854.775.807 | 16.384 | NULL | NO | REQUIRED | NULL |
| MAX_DELAYED_THREADS | 20 | 20 | COMPILE-TIME | 20 | SESSION | BIGINT UNSIGNED | Don't start more than this number of threads to handle INSERT DELAYED statements. If set to zero INSERT DELAYED will be not used | 0 | 16.384 | 1 | NULL | NO | REQUIRED | NULL |
| REPORT_HOST | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Hostname or IP of the slave to be reported to the master during slave registration. Will appear in the output of SHOW SLAVE HOSTS. Leave unset if you do not want the slave to register itself with the master. Note that it is not sufficient for the master to simply read the IP of the slave off the socket once the slave connects. Due to NAT and other routing issues, that IP may not be valid for connecting to the slave from the master or other hosts | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_EVENTS_STAGES_HISTORY_SIZE | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Number of rows per thread in EVENTS_STAGES_HISTORY. Use 0 to disable, -1 for automated sizing. | -1 | 1.024 | 1 | NULL | YES | REQUIRED | NULL |
| INNODB_SORT_BUFFER_SIZE | NULL | 1.048.576 | COMPILE-TIME | 1.048.576 | GLOBAL | BIGINT UNSIGNED | Memory buffer size for index creation | 65.536 | 67.108.864 | 0 | NULL | YES | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_MAX_STAGE_CLASSES | NULL | 160 | COMPILE-TIME | 160 | GLOBAL | BIGINT UNSIGNED | Maximum number of stage instruments. | 0 | 256 | 1 | NULL | YES | REQUIRED | NULL |
| LOG_SLOW_MIN_EXAMINED_ROW_LIMIT | 0 | 0 | COMPILE-TIME | 0 | SESSION | BIGINT UNSIGNED | Don't write queries to slow log that examine fewer rows than that | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| BIND_ADDRESS | NULL | 127.0.0.1 | CONFIG | | GLOBAL | VARCHAR | IP address to bind to. Several addresses may be specified, separated by a comma (,). | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| LARGE_FILES_SUPPORT | NULL | ON | COMPILE-TIME | NULL | GLOBAL | BOOLEAN | Whether mysqld was compiled with options for large file support | NULL | NULL | NULL | OFF,ON | YES | NULL | NULL |
| PERFORMANCE_SCHEMA_EVENTS_TRANSACTIONS_HISTORY_SIZE | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Number of rows per thread in EVENTS_TRANSACTIONS_HISTORY. Use 0 to disable, -1 for automated sizing. | -1 | 1.024 | 1 | NULL | YES | REQUIRED | NULL |
| OPTIMIZER_PRUNE_LEVEL | 2 | 2 | COMPILE-TIME | 2 | SESSION | BIGINT UNSIGNED | Controls the heuristic(s) applied during query optimization to prune less-promising partial plans from the optimizer search space. Meaning: 0 - do not apply any heuristic, thus perform exhaustive search: 1 - prune plans based on cost and number of retrieved rows eq_ref: 2 - prune also if we find an eq_ref chain | 0 | 2 | 1 | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_MAX_SQL_TEXT_LENGTH | NULL | 1.024 | COMPILE-TIME | 1.024 | GLOBAL | BIGINT | Maximum length of displayed sql text. | 0 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| WSREP_AUTO_INCREMENT_CONTROL | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | To automatically control the assignment of autoincrement variables | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| ANALYZE_MAX_LENGTH | 4.294.967.295 | 4.294.967.295 | COMPILE-TIME | 4.294.967.295 | SESSION | INT UNSIGNED | Fields which length in bytes more than this are skipped by ANALYZE TABLE PERSISTENT unless explicitly listed in the FOR COLUMNS () clause | 32 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| BACK_LOG | NULL | 80 | AUTO | 150 | GLOBAL | BIGINT UNSIGNED | The number of outstanding connection requests MariaDB can have. This comes into play when the main MariaDB thread gets very many connection requests in a very short time | 0 | 65.535 | 1 | NULL | YES | REQUIRED | NULL |
| DELAYED_QUEUE_SIZE | NULL | 1.000 | COMPILE-TIME | 1.000 | GLOBAL | BIGINT UNSIGNED | What size queue (in rows) should be allocated for handling INSERT DELAYED. If the queue becomes full, any client that does INSERT DELAYED will wait until there is room in the queue again | 1 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| GROUP_CONCAT_MAX_LEN | 1.048.576 | 1.048.576 | COMPILE-TIME | 1.048.576 | SESSION | INT UNSIGNED | The maximum length of the result of function GROUP_CONCAT() | 4 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| BINLOG_FILE_CACHE_SIZE | NULL | 16.384 | COMPILE-TIME | 16.384 | GLOBAL | BIGINT UNSIGNED | The size of file cache for the binary log | 8.192 | 9.223.372.036.854.775.807 | 4.096 | NULL | NO | REQUIRED | NULL |
| RANGE_ALLOC_BLOCK_SIZE | 4.096 | 4.096 | COMPILE-TIME | 4.096 | SESSION | BIGINT UNSIGNED | Allocation block size for storing ranges during optimization | 4.096 | 4.294.967.295 | 1.024 | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_SETUP_OBJECTS_SIZE | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Maximum number of rows in SETUP_OBJECTS. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| GTID_CURRENT_POS | NULL | | COMPILE-TIME | NULL | GLOBAL | VARCHAR | Current GTID position of the server. Per replication domain, this is either the last GTID replicated by a slave thread, or the GTID logged to the binary log, whichever is most recent. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| INNODB_FAST_SHUTDOWN | NULL | 1 | COMPILE-TIME | 1 | GLOBAL | INT UNSIGNED | Speeds up the shutdown process of the InnoDB storage engine. Possible values are 0, 1 (faster), 2 (crash-like), 3 (fastest clean). | 0 | 3 | 0 | NULL | NO | OPTIONAL | NULL |
| INNODB_TMPDIR | | | COMPILE-TIME | | SESSION | VARCHAR | Directory for temporary non-tablespace files. | NULL | NULL | NULL | NULL | NO | OPTIONAL | NULL |
| CHARACTER_SETS_DIR | NULL | /usr/share/mysql/charsets/ | AUTO | | GLOBAL | VARCHAR | Directory where character sets are | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| INNODB_ENCRYPTION_THREADS | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | INT UNSIGNED | Number of threads performing background key rotation | 0 | 255 | 0 | NULL | NO | REQUIRED | NULL |
| CHARACTER_SET_RESULTS | utf8mb4 | utf8mb4 | COMPILE-TIME | utf8mb4 | SESSION | ENUM | The character set used for returning query results to the client | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| MYISAM_RECOVER_OPTIONS | NULL | BACKUP,QUICK | COMPILE-TIME | BACKUP,QUICK | GLOBAL | SET | Specifies how corrupted tables should be automatically repaired | NULL | NULL | NULL | DEFAULT,BACKUP,FORCE,QUICK,BACKUP_ALL,OFF | YES | OPTIONAL | NULL |
| PERFORMANCE_SCHEMA_SETUP_ACTORS_SIZE | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Maximum number of rows in SETUP_ACTORS. | -1 | 1.024 | 1 | NULL | YES | REQUIRED | NULL |
| RPL_SEMI_SYNC_MASTER_TIMEOUT | NULL | 10.000 | COMPILE-TIME | 10.000 | GLOBAL | BIGINT UNSIGNED | The timeout value (in ms) for semi-synchronous replication in the master | 0 | 9.223.372.036.854.775.807 | 1 | NULL | NO | REQUIRED | NULL |
| SYSTEM_VERSIONING_ALTER_HISTORY | ERROR | ERROR | COMPILE-TIME | ERROR | SESSION | ENUM | Versioning ALTER TABLE mode. ERROR: Fail ALTER with error; KEEP: Keep historical system rows and subject them to ALTER | NULL | NULL | NULL | ERROR,KEEP | NO | REQUIRED | NULL |
| LOW_PRIORITY_UPDATES | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | INSERT/DELETE/UPDATE has lower priority than selects | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| EXPIRE_LOGS_DAYS | NULL | 10,00 | CONFIG | 0,00 | GLOBAL | DOUBLE | If non-zero, binary logs will be purged after expire_logs_days days; It and binlog_expire_logs_seconds are linked, such that changes in one are converted into the other, presentable as a decimal value with 1/1000000 of the day precision; possible purges happen at startup and at binary log rotation | 0 | 99 | NULL | NULL | NO | REQUIRED | NULL |
| REPORT_PASSWORD | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | The account password of the slave to be reported to the master during slave registration | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| REPORT_PORT | NULL | 3.306 | AUTO | 0 | GLOBAL | INT UNSIGNED | Port for connecting to slave reported to the master during slave registration. Set it only if the slave is listening on a non-default port or if you have a special tunnel from the master or other clients to the slave. If not sure, leave this option unset | 0 | 4.294.967.295 | 1 | NULL | YES | REQUIRED | NULL |
| WSREP_DBUG_OPTION | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | DBUG options to provider library | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_MAX_THREAD_INSTANCES | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Maximum number of instrumented threads. Use 0 to disable, -1 for automated sizing. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| SQL_BIG_SELECTS | ON | ON | COMPILE-TIME | OFF | SESSION | BOOLEAN | If set to 0, MariaDB will not perform large SELECTs. See max_join_size for details. If max_join_size is set to anything but DEFAULT, sql_big_selects is automatically set to 0. If sql_big_selects is again set, max_join_size will be ignored. | NULL | NULL | NULL | OFF,ON | NO | NULL | NULL |
| FT_MAX_WORD_LEN | NULL | 84 | COMPILE-TIME | 84 | GLOBAL | BIGINT UNSIGNED | The maximum length of the word to be included in a FULLTEXT index. Note: FULLTEXT indexes must be rebuilt after changing this variable | 10 | 84 | 1 | NULL | YES | REQUIRED | NULL |
| TRANSACTION_ALLOC_BLOCK_SIZE | 8.192 | 8.192 | COMPILE-TIME | 8.192 | SESSION | BIGINT UNSIGNED | Allocation block size for transactions to be stored in binary log | 1.024 | 134.217.728 | 1.024 | NULL | NO | REQUIRED | NULL |
| LOG_SLOW_QUERY_TIME | 10,00 | 10,00 | COMPILE-TIME | 10,00 | SESSION | DOUBLE | Log all queries that have taken more than log_slow_query_time seconds to execute to the slow query log file. The argument will be treated as a decimal value with microsecond precision | 0 | 31.536.000 | NULL | NULL | NO | REQUIRED | NULL |
| INNODB_FLUSHING_AVG_LOOPS | NULL | 30 | COMPILE-TIME | 30 | GLOBAL | BIGINT UNSIGNED | Number of iterations over which the background flushing is averaged. | 1 | 1.000 | 0 | NULL | NO | REQUIRED | NULL |
| MAX_HEAP_TABLE_SIZE | 16.777.216 | 16.777.216 | COMPILE-TIME | 16.777.216 | SESSION | BIGINT UNSIGNED | Don't allow creation of heap tables bigger than this | 16.384 | 9.223.372.036.854.775.807 | 1.024 | NULL | NO | REQUIRED | NULL |
| SYNC_FRM | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Sync .frm files to disk on creation | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| CHARACTER_SET_CONNECTION | utf8mb4 | utf8mb4 | COMPILE-TIME | utf8mb4 | SESSION | ENUM | The character set used for literals that do not have a character set introducer and for number-to-string conversion | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| BINLOG_ROW_METADATA | NULL | NO_LOG | COMPILE-TIME | NO_LOG | GLOBAL | ENUM | Controls whether metadata is logged using FULL , MINIMAL format and NO_LOG.FULL causes all metadata to be logged; MINIMAL means that only metadata actually required by slave is logged; NO_LOG NO metadata will be logged.Default: NO_LOG. | NULL | NULL | NULL | NO_LOG,MINIMAL,FULL | NO | REQUIRED | NULL |
| MAX_DIGEST_LENGTH | NULL | 1.024 | COMPILE-TIME | 1.024 | GLOBAL | INT UNSIGNED | Maximum length considered for digest text. | 0 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| ARIA_PAGE_CHECKSUM | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Maintain page checksums (can be overridden per table with PAGE_CHECKSUM clause in CREATE TABLE) | NULL | NULL | NULL | OFF,ON | NO | REQUIRED | NULL |
| COLUMN_COMPRESSION_ZLIB_WRAP | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | Generate zlib header and trailer and compute adler32 check value. It can be used with storage engines that don't provide data integrity verification to detect data corruption. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_IO_CAPACITY_MAX | NULL | 2.000 | COMPILE-TIME | 4.294.967.295 | GLOBAL | BIGINT UNSIGNED | Limit to which innodb_io_capacity can be inflated. | 100 | 4.294.967.295 | 0 | NULL | NO | REQUIRED | NULL |
| FT_QUERY_EXPANSION_LIMIT | NULL | 20 | COMPILE-TIME | 20 | GLOBAL | BIGINT UNSIGNED | Number of best matches to use for query expansion | 0 | 1.000 | 1 | NULL | YES | REQUIRED | NULL |
| INNODB_IO_CAPACITY | NULL | 200 | COMPILE-TIME | 200 | GLOBAL | BIGINT UNSIGNED | Number of IOPs the server can do. Tunes the background IO rate | 100 | 4.294.967.295 | 0 | NULL | NO | REQUIRED | NULL |
| WSREP_LOAD_DATA_SPLITTING | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | To commit LOAD DATA transaction after every 10K rows inserted (deprecated) | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| WSREP_CLUSTER_ADDRESS | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Address to initially connect to cluster | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_EVENTS_TRANSACTIONS_HISTORY_LONG_SIZE | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Number of rows in EVENTS_TRANSACTIONS_HISTORY_LONG. Use 0 to disable, -1 for automated sizing. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| INNODB_FLUSH_SYNC | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Allow IO bursts at the checkpoints ignoring io_capacity setting. | NULL | NULL | NULL | OFF,ON | NO | NONE | NULL |
| MAX_CONNECTIONS | NULL | 151 | COMPILE-TIME | 151 | GLOBAL | BIGINT UNSIGNED | The number of simultaneous clients allowed | 10 | 100.000 | 1 | NULL | NO | REQUIRED | NULL |
| LOG_WARNINGS | 2 | 2 | COMPILE-TIME | 2 | SESSION | BIGINT UNSIGNED | Log some non critical warnings to the error log.Value can be between 0 and 11. Higher values mean more verbosity | 0 | 4.294.967.295 | 1 | NULL | NO | OPTIONAL | NULL |
| KEY_BUFFER_SIZE | NULL | 134.217.728 | COMPILE-TIME | 134.217.728 | GLOBAL | BIGINT UNSIGNED | The size of the buffer used for index blocks for MyISAM tables. Increase this to get better index handling (for all reads and multiple writes) to as much as you can afford | 0 | 9.223.372.036.854.775.807 | 4.096 | NULL | NO | REQUIRED | NULL |
| INNODB_COMPRESSION_DEFAULT | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | Is compression the default for new tables | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| LOWER_CASE_FILE_SYSTEM | NULL | OFF | AUTO | NULL | GLOBAL | BOOLEAN | Case sensitivity of file names on the file system where the data directory is located | NULL | NULL | NULL | OFF,ON | YES | NULL | NULL |
| INNODB_AUTOEXTEND_INCREMENT | NULL | 64 | COMPILE-TIME | 64 | GLOBAL | INT UNSIGNED | Data file autoextend increment in megabytes | 1 | 1.000 | 0 | NULL | NO | REQUIRED | NULL |
| SLOW_QUERY_LOG_FILE | NULL | ayam-mrothol-dev-ubuntu-s-1vcpu-512mb-10gb-sgp1-slow.log | COMPILE-TIME | | GLOBAL | VARCHAR | Alias for log_slow_query_file. Log slow queries to given log file. Defaults logging to 'hostname'-slow.log. Must be enabled to activate other slow log options | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| MYISAM_DATA_POINTER_SIZE | NULL | 6 | COMPILE-TIME | 6 | GLOBAL | BIGINT UNSIGNED | Default pointer size to be used for MyISAM tables | 2 | 7 | 1 | NULL | NO | REQUIRED | NULL |
| COLUMN_COMPRESSION_ZLIB_LEVEL | 6 | 6 | COMPILE-TIME | 6 | SESSION | INT UNSIGNED | zlib compression level (1 gives best speed, 9 gives best compression) | 0 | 9 | 1 | NULL | NO | REQUIRED | NULL |
| RPL_SEMI_SYNC_SLAVE_DELAY_MASTER | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Only write master info file when ack is needed. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| GENERAL_LOG_FILE | NULL | ayam-mrothol-dev-ubuntu-s-1vcpu-512mb-10gb-sgp1.log | COMPILE-TIME | | GLOBAL | VARCHAR | Log connections and queries to given file | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| SQL_AUTO_IS_NULL | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | If set to 1, the query SELECT * FROM table_name WHERE auto_increment_column IS NULL will return an auto-increment that has just been successfully inserted, the same as the LAST_INSERT_ID() function. Some ODBC programs make use of this IS NULL comparison. | NULL | NULL | NULL | OFF,ON | NO | NULL | NULL |
| AUTOMATIC_SP_PRIVILEGES | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Creating and dropping stored procedures alters ACLs | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| ARIA_USED_FOR_TEMP_TABLES | NULL | ON | COMPILE-TIME | NULL | GLOBAL | BOOLEAN | Whether temporary tables should be MyISAM or Aria | NULL | NULL | NULL | OFF,ON | YES | NULL | NULL |
| CONCURRENT_INSERT | NULL | AUTO | COMPILE-TIME | AUTO | GLOBAL | ENUM | Use concurrent insert with MyISAM | NULL | NULL | NULL | NEVER,AUTO,ALWAYS | NO | OPTIONAL | NULL |
| SLAVE_TRANSACTION_RETRY_INTERVAL | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | Interval of the slave SQL thread will retry a transaction in case it failed with a deadlock or elapsed lock wait timeout or listed in slave_transaction_retry_errors | 0 | 3.600 | 1 | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_DIGESTS_SIZE | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Size of the statement digest. Use 0 to disable, -1 for automated sizing. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| WSREP_RETRY_AUTOCOMMIT | 1 | 1 | COMPILE-TIME | 1 | SESSION | BIGINT UNSIGNED | Max number of times to retry a failed autocommit statement | 0 | 10.000 | 1 | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_MAX_PROGRAM_INSTANCES | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Maximum number of instrumented programs. Use 0 to disable, -1 for automated scaling. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| INNODB_STATUS_OUTPUT_LOCKS | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Enable InnoDB lock monitor output to the error log. Requires innodb_status_output=ON. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| KEY_CACHE_FILE_HASH_SIZE | NULL | 512 | COMPILE-TIME | 512 | GLOBAL | BIGINT UNSIGNED | Number of hash buckets for open and changed files. If you have a lot of MyISAM files open you should increase this for faster flush of changes. A good value is probably 1/10 of number of possible open MyISAM files. | 128 | 16.384 | 1 | NULL | NO | REQUIRED | NULL |
| QUERY_PREALLOC_SIZE | 32.768 | 32.768 | COMPILE-TIME | 32.768 | SESSION | BIGINT UNSIGNED | Persistent buffer for query parsing and execution | 1.024 | 4.294.967.295 | 1.024 | NULL | NO | REQUIRED | NULL |
| JOIN_BUFFER_SIZE | 262.144 | 262.144 | COMPILE-TIME | 262.144 | SESSION | BIGINT UNSIGNED | The size of the buffer that is used for joins | 128 | 9.223.372.036.854.775.807 | 128 | NULL | NO | REQUIRED | NULL |
| SORT_BUFFER_SIZE | 2.097.152 | 2.097.152 | COMPILE-TIME | 2.097.152 | SESSION | BIGINT UNSIGNED | Each thread that needs to do a sort allocates a buffer of this size | 1.024 | 9.223.372.036.854.775.807 | 1 | NULL | NO | REQUIRED | NULL |
| EXPLICIT_DEFAULTS_FOR_TIMESTAMP | ON | ON | COMPILE-TIME | ON | SESSION | BOOLEAN | This option causes CREATE TABLE to create all TIMESTAMP columns as NULL with DEFAULT NULL attribute, Without this option, TIMESTAMP columns are NOT NULL and have implicit DEFAULT clauses. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_ROLLBACK_ON_TIMEOUT | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Roll back the complete transaction on lock wait timeout, for 4.x compatibility (disabled by default) | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| SLAVE_MAX_ALLOWED_PACKET | NULL | 1.073.741.824 | COMPILE-TIME | 1.073.741.824 | GLOBAL | BIGINT UNSIGNED | The maximum packet length to sent successfully from the master to slave. | 1.024 | 1.073.741.824 | 1.024 | NULL | NO | REQUIRED | NULL |
| STANDARD_COMPLIANT_CTE | ON | ON | COMPILE-TIME | ON | SESSION | BOOLEAN | Allow only CTEs compliant to SQL standard | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| DELAY_KEY_WRITE | NULL | ON | COMPILE-TIME | ON | GLOBAL | ENUM | Specifies how MyISAM tables handles CREATE TABLE DELAY_KEY_WRITE. If set to ON, the default, any DELAY KEY WRITEs are honored. The key buffer is then flushed only when the table closes, speeding up writes. MyISAM tables should be automatically checked upon startup in this case, and --external locking should not be used, as it can lead to index corruption. If set to OFF, DELAY KEY WRITEs are ignored, while if set to ALL, all new opened tables are treated as if created with DELAY KEY WRITEs enabled. | NULL | NULL | NULL | OFF,ON,ALL | NO | OPTIONAL | NULL |
| ARIA_REPAIR_THREADS | 1 | 1 | COMPILE-TIME | 1 | SESSION | BIGINT UNSIGNED | Number of threads to use when repairing Aria tables. The value of 1 disables parallel repair. | 1 | 128 | 1 | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_EVENTS_WAITS_HISTORY_LONG_SIZE | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Number of rows in EVENTS_WAITS_HISTORY_LONG. Use 0 to disable, -1 for automated sizing. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| JOIN_BUFFER_SPACE_LIMIT | 2.097.152 | 2.097.152 | COMPILE-TIME | 2.097.152 | SESSION | BIGINT UNSIGNED | The limit of the space for all join buffers used by a query | 2.048 | 9.223.372.036.854.775.807 | 2.048 | NULL | NO | REQUIRED | NULL |
| CONNECT_TIMEOUT | NULL | 10 | COMPILE-TIME | 10 | GLOBAL | BIGINT UNSIGNED | The number of seconds the mysqld server is waiting for a connect packet before responding with 'Bad handshake' | 2 | 31.536.000 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_BUFFER_POOL_LOAD_ABORT | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Abort a currently running load of the buffer pool | NULL | NULL | NULL | OFF,ON | NO | REQUIRED | NULL |
| LC_MESSAGES_DIR | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Directory where error messages are | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| PROGRESS_REPORT_TIME | 5 | 5 | COMPILE-TIME | 5 | SESSION | BIGINT UNSIGNED | Seconds between sending progress reports to the client for time-consuming statements. Set to 0 to disable progress reporting. | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| RELAY_LOG_SPACE_LIMIT | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | Maximum space to use for all relay logs | 0 | 9.223.372.036.854.775.807 | 1 | NULL | YES | REQUIRED | NULL |
| REPLICATE_WILD_DO_TABLE | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Tells the slave thread to restrict replication to statements where any of the updated tables match the specified database and table name patterns. | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| LARGE_PAGES | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Enable support for large pages | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| ARIA_FORCE_START_AFTER_RECOVERY_FAILURES | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | Number of consecutive log recovery failures after which logs will be automatically deleted to cure the problem; 0 (the default) disables the feature. | 0 | 255 | 1 | NULL | YES | REQUIRED | NULL |
| TMP_DISK_TABLE_SIZE | 9.223.372.036.854.775.807 | 9.223.372.036.854.775.807 | COMPILE-TIME | 9.223.372.036.854.775.807 | SESSION | BIGINT UNSIGNED | Max size for data for an internal temporary on-disk MyISAM or Aria table. | 1.024 | 9.223.372.036.854.775.807 | 1 | NULL | NO | REQUIRED | NULL |
| CHARACTER_SET_SERVER | utf8mb4 | utf8mb4 | COMPILE-TIME | utf8mb4 | SESSION | ENUM | The default character set | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| MAX_USER_CONNECTIONS | 0 | 0 | COMPILE-TIME | 0 | SESSION | INT | The maximum number of active connections for a single user (0 = no limit) | -1 | 2.147.483.647 | 1 | NULL | NO | REQUIRED | NULL |
| RAND_SEED1 | 394.525.770 | NULL | COMPILE-TIME | 0 | SESSION ONLY | BIGINT UNSIGNED | Sets the internal state of the RAND() generator for replication purposes | 0 | 9.223.372.036.854.775.807 | 1 | NULL | NO | NULL | NULL |
| INIT_SLAVE | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Command(s) that are executed by a slave server each time the SQL thread starts | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| THREAD_POOL_EXACT_STATS | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | If set to 1, provides better statistics in information_schema threadpool tables | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| BINLOG_ALTER_TWO_PHASE | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | When set, split ALTER at binary logging into 2 statements: START ALTER and COMMIT/ROLLBACK ALTER | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_READ_ONLY_COMPRESSED | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Make ROW_FORMAT=COMPRESSED tables read-only | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| MAX_BINLOG_SIZE | NULL | 1.073.741.824 | COMPILE-TIME | 1.073.741.824 | GLOBAL | BIGINT UNSIGNED | Binary log will be rotated automatically when the size exceeds this value. | 4.096 | 1.073.741.824 | 4.096 | NULL | NO | REQUIRED | NULL |
| BINLOG_DIRECT_NON_TRANSACTIONAL_UPDATES | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | Causes updates to non-transactional engines using statement format to be written directly to binary log. Before using this option make sure that there are no dependencies between transactional and non-transactional tables such as in the statement INSERT INTO t_myisam SELECT * FROM t_innodb; otherwise, slaves may diverge from the master. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| SLAVE_COMPRESSED_PROTOCOL | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Use compression on master/slave protocol | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_STRICT_MODE | ON | ON | COMPILE-TIME | ON | SESSION | BOOLEAN | Use strict mode when evaluating create options. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| CORE_FILE | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Write core on crashes | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| TIME_ZONE | SYSTEM | SYSTEM | COMPILE-TIME | SYSTEM | SESSION | VARCHAR | The current time zone, used to initialize the time zone for a client when it connects. Set to SYSTEM by default, in which the client uses the system time zone value. | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| WSREP_NODE_ADDRESS | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Specifies the node's network address, in the format ip address[:port]. Used in situations where autoguessing is not reliable. As of MariaDB 10.1.8, supports IPv6. | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| WSREP_REJECT_QUERIES | NULL | NONE | COMPILE-TIME | NONE | GLOBAL | ENUM | Variable to set to reject queries | NULL | NULL | NULL | NONE,ALL,ALL_KILL | NO | OPTIONAL | NULL |
| WSREP_DEBUG | NULL | NONE | COMPILE-TIME | NONE | GLOBAL | ENUM | WSREP debug level logging | NULL | NULL | NULL | NONE,SERVER,TRANSACTION,STREAMING,CLIENT | NO | REQUIRED | NULL |
| INNODB_TABLE_LOCKS | ON | ON | COMPILE-TIME | ON | SESSION | BOOLEAN | Enable InnoDB locking in LOCK TABLES | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| LOCK_WAIT_TIMEOUT | 86.400 | 86.400 | COMPILE-TIME | 86.400 | SESSION | BIGINT UNSIGNED | Timeout in seconds to wait for a lock before returning an error. | 0 | 31.536.000 | 1 | NULL | NO | REQUIRED | NULL |
| LOG_SLOW_VERBOSITY | | | COMPILE-TIME | | SESSION | SET | Verbosity level for the slow log | NULL | NULL | NULL | innodb,query_plan,explain,engine,warnings,full | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_SESSION_CONNECT_ATTRS_SIZE | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Size of session attribute string buffer per thread. Use 0 to disable, -1 for automated sizing. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| THREAD_POOL_IDLE_TIMEOUT | NULL | 60 | COMPILE-TIME | 60 | GLOBAL | INT UNSIGNED | Timeout in seconds for an idle thread in the thread pool.Worker thread will be shut down after timeout | 1 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| BULK_INSERT_BUFFER_SIZE | 8.388.608 | 8.388.608 | COMPILE-TIME | 8.388.608 | SESSION | BIGINT UNSIGNED | Size of tree cache used in bulk insert optimisation. Note that this is a limit per thread! | 0 | 9.223.372.036.854.775.807 | 1 | NULL | NO | REQUIRED | NULL |
| WSREP_SLAVE_THREADS | NULL | 1 | COMPILE-TIME | 1 | GLOBAL | BIGINT UNSIGNED | Number of slave appliers to launch | 1 | 512 | 1 | NULL | NO | REQUIRED | NULL |
| CHARACTER_SET_CLIENT | utf8mb4 | utf8mb4 | COMPILE-TIME | utf8mb4 | SESSION | ENUM | The character set for statements that arrive from the client | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| PERFORMANCE_SCHEMA_MAX_TABLE_LOCK_STAT | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Maximum number of lock statistics for instrumented tables. Use 0 to disable, -1 for automated scaling. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| SLAVE_PARALLEL_THREADS | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | If non-zero, number of threads to spawn to apply in parallel events on the slave that were group-committed on the master or were logged with GTID in different replication domains. Note that these threads are in addition to the IO and SQL threads, which are always created by a replication slave | 0 | 16.383 | 1 | NULL | NO | REQUIRED | NULL |
| DISCONNECT_ON_EXPIRED_PASSWORD | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | This variable controls how the server handles clients that are not aware of the sandbox mode. If enabled, the server disconnects the client, otherwise the server puts the client in a sandbox mode. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| KEY_CACHE_DIVISION_LIMIT | NULL | 100 | COMPILE-TIME | 100 | GLOBAL | BIGINT UNSIGNED | The minimum percentage of warm blocks in key cache | 1 | 100 | 1 | NULL | NO | REQUIRED | NULL |
| RAND_SEED2 | 202.950.999 | NULL | COMPILE-TIME | 0 | SESSION ONLY | BIGINT UNSIGNED | Sets the internal state of the RAND() generator for replication purposes | 0 | 9.223.372.036.854.775.807 | 1 | NULL | NO | NULL | NULL |
| SYSTEM_VERSIONING_ASOF | DEFAULT | DEFAULT | COMPILE-TIME | | SESSION | VARCHAR | Default value for the FOR SYSTEM_TIME AS OF clause | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| INNODB_AUTOINC_LOCK_MODE | NULL | 1 | COMPILE-TIME | 1 | GLOBAL | BIGINT | The AUTOINC lock modes supported by InnoDB: 0 => Old style AUTOINC locking (for backward compatibility); 1 => New style AUTOINC locking; 2 => No AUTOINC locking (unsafe for SBR) | 0 | 2 | 0 | NULL | YES | REQUIRED | NULL |
| WSREP_CONVERT_LOCK_TO_TRX | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | To convert locking sessions into transactions | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| LC_MESSAGES | en_US | en_US | COMPILE-TIME | en_US | SESSION | ENUM | Set the language used for the error messages | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| WSREP_SST_DONOR_REJECTS_QUERIES | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Reject client queries when donating state snapshot transfer | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_MAX_PURGE_LAG_WAIT | NULL | 4.294.967.295 | COMPILE-TIME | 4.294.967.295 | GLOBAL | INT UNSIGNED | Wait until History list length is below the specified limit | 0 | 4.294.967.295 | 0 | NULL | NO | REQUIRED | NULL |
| LOG_SLOW_ADMIN_STATEMENTS | ON | ON | COMPILE-TIME | ON | SESSION | BOOLEAN | Log slow OPTIMIZE, ANALYZE, ALTER and other administrative statements to the slow log if it is open. Resets or sets the option 'admin' in log_slow_disabled_statements | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_BUFFER_POOL_FILENAME | NULL | ib_buffer_pool | COMPILE-TIME | ib_buffer_pool | GLOBAL | VARCHAR | Filename to/from which to dump/load the InnoDB buffer pool | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_MAX_THREAD_CLASSES | NULL | 50 | COMPILE-TIME | 50 | GLOBAL | BIGINT UNSIGNED | Maximum number of thread instruments. | 0 | 256 | 1 | NULL | YES | REQUIRED | NULL |
| INNODB_MAX_PURGE_LAG_DELAY | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | Maximum delay of user threads in micro-seconds | 0 | 10.000.000 | 0 | NULL | NO | REQUIRED | NULL |
| RPL_SEMI_SYNC_SLAVE_KILL_CONN_TIMEOUT | NULL | 5 | COMPILE-TIME | 5 | GLOBAL | INT UNSIGNED | Timeout for the mysql connection used to kill the slave io_thread's connection on master. This timeout comes into play when stop slave is executed. | 0 | 4.294.967.295 | 1 | NULL | NO | OPTIONAL | NULL |
| INNODB_BUFFER_POOL_DUMP_NOW | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Trigger an immediate dump of the buffer pool into a file named @@innodb_buffer_pool_filename | NULL | NULL | NULL | OFF,ON | NO | REQUIRED | NULL |
| SSL_CA | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | CA file in PEM format (check OpenSSL docs, implies --ssl) | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| INNODB_SYNC_SPIN_LOOPS | NULL | 30 | COMPILE-TIME | 30 | GLOBAL | BIGINT UNSIGNED | Count of spin-loop rounds in InnoDB mutexes (30 by default) | 0 | 9.223.372.036.854.775.807 | 0 | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_EVENTS_STATEMENTS_HISTORY_SIZE | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Number of rows per thread in EVENTS_STATEMENTS_HISTORY. Use 0 to disable, -1 for automated sizing. | -1 | 1.024 | 1 | NULL | YES | REQUIRED | NULL |
| INNODB_STATUS_OUTPUT | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Enable InnoDB monitor output to the error log. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_BUFFER_POOL_CHUNK_SIZE | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | Deprecated parameter with no effect | 0 | 9.223.372.036.854.775.807 | 1.048.576 | NULL | YES | REQUIRED | NULL |
| INNODB_UNDO_LOG_TRUNCATE | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Enable or Disable Truncate of UNDO tablespace. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| SESSION_TRACK_STATE_CHANGE | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | Track changes to the session state. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_ADAPTIVE_HASH_INDEX | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Enable InnoDB adaptive hash index (disabled by default). | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| SQL_SAFE_UPDATES | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | If set to 1, UPDATEs and DELETEs need either a key in the WHERE clause, or a LIMIT clause, or else they will aborted. Prevents the common mistake of accidentally deleting or updating every row in a table. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_ENCRYPT_LOG | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Enable redo log encryption | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| MAX_PASSWORD_ERRORS | NULL | 4.294.967.295 | COMPILE-TIME | 4.294.967.295 | GLOBAL | INT UNSIGNED | If there is more than this number of failed connect attempts due to invalid password, user will be blocked from further connections until FLUSH_PRIVILEGES. | 1 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| ALLOW_SUSPICIOUS_UDFS | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Allows use of user-defined functions (UDFs) consisting of only one symbol xxx() without corresponding xxx_init() or xxx_deinit(). That also means that one can load any function from any library, for example exit() from libc.so | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| NET_RETRY_COUNT | 10 | 10 | COMPILE-TIME | 10 | SESSION | BIGINT UNSIGNED | If a read on a communication port is interrupted, retry this many times before giving up | 1 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| STORED_PROGRAM_CACHE | NULL | 256 | COMPILE-TIME | 256 | GLOBAL | BIGINT UNSIGNED | The soft upper limit for number of cached stored routines for one connection. | 0 | 524.288 | 1 | NULL | NO | REQUIRED | NULL |
| NET_WRITE_TIMEOUT | 60 | 60 | COMPILE-TIME | 60 | SESSION | BIGINT UNSIGNED | Number of seconds to wait for a block to be written to a connection before aborting the write | 1 | 31.536.000 | 1 | NULL | NO | REQUIRED | NULL |
| SSL_CRL | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | CRL file in PEM format (check OpenSSL docs, implies --ssl) | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| NOTE_VERBOSITY | basic,explain | basic,explain | COMPILE-TIME | basic,explain | SESSION | SET | Verbosity level for note-warnings given to the user. See also @@sql_notes. | NULL | NULL | NULL | basic,unusable_keys,explain | NO | REQUIRED | NULL |
| INNODB_DEADLOCK_REPORT | NULL | full | COMPILE-TIME | full | GLOBAL | ENUM | How to report deadlocks (if innodb_deadlock_detect=ON). | NULL | NULL | NULL | off,basic,full | NO | REQUIRED | NULL |
| OPTIMIZER_EXTRA_PRUNING_DEPTH | 8 | 8 | COMPILE-TIME | 8 | SESSION | BIGINT UNSIGNED | If the optimizer needs to enumerate join prefix of this size or larger, then it will try aggressively prune away the search space. | 0 | 62 | 1 | NULL | NO | REQUIRED | NULL |
| MAX_SESSION_MEM_USED | 9.223.372.036.854.775.807 | 9.223.372.036.854.775.807 | COMPILE-TIME | 9.223.372.036.854.775.807 | SESSION | BIGINT UNSIGNED | Amount of memory a single user session is allowed to allocate. This limits the value of the session variable MEM_USED | 8.192 | 9.223.372.036.854.775.807 | 1 | NULL | NO | REQUIRED | NULL |
| SECURE_FILE_PRIV | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Limit LOAD DATA, SELECT ... OUTFILE, and LOAD_FILE() to files within specified directory | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| SYSTEM_VERSIONING_INSERT_HISTORY | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | Allows direct inserts into ROW_START and ROW_END columns if secure_timestamp allows changing @@timestamp | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| COMPLETION_TYPE | NO_CHAIN | NO_CHAIN | COMPILE-TIME | NO_CHAIN | SESSION | ENUM | The transaction completion type | NULL | NULL | NULL | NO_CHAIN,CHAIN,RELEASE | NO | REQUIRED | NULL |
| INNODB_FORCE_RECOVERY | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | Helps to save your data in case the disk image of the database becomes corrupt. Value 5 can return bogus data, and 6 can permanently corrupt data. | 0 | 6 | 0 | NULL | YES | REQUIRED | NULL |
| LOG_BIN_COMPRESS | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Whether the binary log can be compressed | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_DISABLE_SORT_FILE_CACHE | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Whether to disable OS system file cache for sort I/O | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| HAVE_PROFILING | NULL | YES | COMPILE-TIME | NULL | GLOBAL | VARCHAR | If statement profiling is available, will be set to YES, otherwise will be set to NO. See SHOW PROFILES and SHOW PROFILE. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| INNODB_ENCRYPTION_ROTATION_IOPS | NULL | 100 | COMPILE-TIME | 100 | GLOBAL | INT UNSIGNED | Use this many iops for background key rotation | 0 | 4.294.967.295 | 0 | NULL | NO | REQUIRED | NULL |
| OPTIMIZER_USE_CONDITION_SELECTIVITY | 4 | 4 | COMPILE-TIME | 4 | SESSION | BIGINT UNSIGNED | Controls selectivity of which conditions the optimizer takes into account to calculate cardinality of a partial join when it searches for the best execution plan Meaning: 1 - use selectivity of index backed range conditions to calculate the cardinality of a partial join if the last joined table is accessed by full table scan or an index scan, 2 - use selectivity of index backed range conditions to calculate the cardinality of a partial join in any case, 3 - additionally always use selectivity of range conditions that are not backed by any index to calculate the cardinality of a partial join, 4 - use histograms to calculate selectivity of range conditions that are not backed by any index to calculate the cardinality of a partial join.5 - additionally use selectivity of certain non-range predicates calculated on record samples | 1 | 5 | 1 | NULL | NO | REQUIRED | NULL |
| HAVE_DYNAMIC_LOADING | NULL | YES | COMPILE-TIME | NULL | GLOBAL | VARCHAR | If the server supports dynamic loading of plugins, will be set to YES, otherwise will be set to NO. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| THREAD_HANDLING | NULL | one-thread-per-connection | COMPILE-TIME | one-thread-per-connection | GLOBAL | ENUM | Define threads usage for handling queries | NULL | NULL | NULL | one-thread-per-connection,no-threads,pool-of-threads | YES | REQUIRED | NULL |
| WSREP_SST_METHOD | NULL | rsync | COMPILE-TIME | rsync | GLOBAL | VARCHAR | State snapshot transfer method | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| MAX_LENGTH_FOR_SORT_DATA | 1.024 | 1.024 | COMPILE-TIME | 1.024 | SESSION | BIGINT UNSIGNED | Max number of bytes in sorted records | 4 | 8.388.608 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_PRINT_ALL_DEADLOCKS | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Print all deadlocks to MariaDB error log (off by default) | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| FLUSH | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Flush MyISAM tables to disk between SQL commands | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_STATS_TRADITIONAL | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Enable traditional statistic calculation based on number of configured pages (default true) | NULL | NULL | NULL | OFF,ON | NO | REQUIRED | NULL |
| CHARACTER_SET_FILESYSTEM | binary | binary | COMPILE-TIME | binary | SESSION | ENUM | The filesystem character set | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| LOG_SLOW_DISABLED_STATEMENTS | sp | sp | COMPILE-TIME | sp | SESSION | SET | Don't log certain types of statements to slow log | NULL | NULL | NULL | admin,call,slave,sp | NO | REQUIRED | NULL |
| INNODB_MAX_DIRTY_PAGES_PCT | NULL | 90,00 | COMPILE-TIME | 90,00 | GLOBAL | DOUBLE | Percentage of dirty pages allowed in bufferpool. | 0 | 100,00 | NULL | NULL | NO | REQUIRED | NULL |
| MAX_BINLOG_CACHE_SIZE | NULL | 9.223.372.036.854.775.807 | COMPILE-TIME | 9.223.372.036.854.775.807 | GLOBAL | BIGINT UNSIGNED | Sets the total size of the transactional cache | 4.096 | 9.223.372.036.854.775.807 | 4.096 | NULL | NO | REQUIRED | NULL |
| LOG_SLOW_QUERY | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | Log slow queries to a table or log file. Defaults logging to a file 'hostname'-slow.log or a table mysql.slow_log if --log-output=TABLE is used. Must be enabled to activate other slow log options. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| PERFORMANCE_SCHEMA_MAX_FILE_CLASSES | NULL | 80 | COMPILE-TIME | 80 | GLOBAL | BIGINT UNSIGNED | Maximum number of file instruments. | 0 | 256 | 1 | NULL | YES | REQUIRED | NULL |
| SKIP_GRANT_TABLES | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Start without grant tables. This gives all users FULL ACCESS to all tables. | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| MAX_SORT_LENGTH | 1.024 | 1.024 | COMPILE-TIME | 1.024 | SESSION | BIGINT UNSIGNED | The number of bytes to use when sorting BLOB or TEXT values (only the first max_sort_length bytes of each value are used; the rest are ignored) | 64 | 8.388.608 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_INSTANT_ALTER_COLUMN_ALLOWED | NULL | add_drop_reorder | COMPILE-TIME | add_drop_reorder | GLOBAL | ENUM | File format constraint for ALTER TABLE | NULL | NULL | NULL | never,add_last,add_drop_reorder | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_MAX_METADATA_LOCKS | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Maximum number of metadata locks. Use 0 to disable, -1 for automated scaling. | -1 | 104.857.600 | 1 | NULL | YES | REQUIRED | NULL |
| PSEUDO_SLAVE_MODE | OFF | NULL | COMPILE-TIME | OFF | SESSION ONLY | BOOLEAN | SET pseudo_slave_mode= 0,1 are commands that mysqlbinlog adds to beginning and end of binary log dumps. While zero value indeed disables, the actual enabling of the slave applier execution mode is done implicitly when a Format_description_event is sent through the session. | NULL | NULL | NULL | OFF,ON | NO | NULL | NULL |
| COLUMN_COMPRESSION_ZLIB_STRATEGY | DEFAULT_STRATEGY | DEFAULT_STRATEGY | COMPILE-TIME | DEFAULT_STRATEGY | SESSION | ENUM | The strategy parameter is used to tune the compression algorithm. Use the value DEFAULT_STRATEGY for normal data, FILTERED for data produced by a filter (or predictor), HUFFMAN_ONLY to force Huffman encoding only (no string match), or RLE to limit match distances to one (run-length encoding). Filtered data consists mostly of small values with a somewhat random distribution. In this case, the compression algorithm is tuned to compress them better. The effect of FILTERED is to force more Huffman coding and less string matching; it is somewhat intermediate between DEFAULT_STRATEGY and HUFFMAN_ONLY. RLE is designed to be almost as fast as HUFFMAN_ONLY, but give better compression for PNG image data. The strategy parameter only affects the compression ratio but not the correctness of the compressed output even if it is not set appropriately. FIXED prevents the use of dynamic Huffman codes, allowing for a simpler decoder for special applications. | NULL | NULL | NULL | DEFAULT_STRATEGY,FILTERED,HUFFMAN_ONLY,RLE,FIXED | NO | REQUIRED | NULL |
| VERSION_COMPILE_MACHINE | NULL | x86_64 | COMPILE-TIME | NULL | GLOBAL | VARCHAR | The machine type or architecture MariaDB was built on, for example i686. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| SYNC_RELAY_LOG | NULL | 10.000 | COMPILE-TIME | 10.000 | GLOBAL | INT UNSIGNED | Synchronously flush relay log to disk after every #th event. Use 0 to disable synchronous flushing | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_MAX_SOCKET_CLASSES | NULL | 10 | COMPILE-TIME | 10 | GLOBAL | BIGINT UNSIGNED | Maximum number of socket instruments. | 0 | 256 | 1 | NULL | YES | REQUIRED | NULL |
| INNODB_DEFAULT_ENCRYPTION_KEY_ID | 1 | 1 | COMPILE-TIME | 1 | SESSION | INT UNSIGNED | Default encryption key id used for table encryption. | 1 | 4.294.967.295 | 0 | NULL | NO | REQUIRED | NULL |
| IDENTITY | 0 | NULL | COMPILE-TIME | 0 | SESSION ONLY | BIGINT UNSIGNED | Synonym for the last_insert_id variable | 0 | 9.223.372.036.854.775.807 | 1 | NULL | NO | NULL | NULL |
| INNODB_MAX_UNDO_LOG_SIZE | NULL | 10.485.760 | COMPILE-TIME | 10.485.760 | GLOBAL | BIGINT UNSIGNED | Desired maximum UNDO tablespace size in bytes | 10.485.760 | 281.474.976.710.656 | 0 | NULL | NO | OPTIONAL | NULL |
| SLAVE_EXEC_MODE | NULL | STRICT | COMPILE-TIME | STRICT | GLOBAL | ENUM | How replication events should be executed. Legal values are STRICT (default) and IDEMPOTENT. In IDEMPOTENT mode, replication will not stop for operations that are idempotent. For example, in row based replication attempts to delete rows that doesn't exist will be ignored. In STRICT mode, replication will stop on any unexpected difference between the master and the slave. | NULL | NULL | NULL | STRICT,IDEMPOTENT | NO | REQUIRED | NULL |
| MAX_ROWID_FILTER_SIZE | 131.072 | 131.072 | COMPILE-TIME | 131.072 | SESSION | BIGINT UNSIGNED | The maximum size of the container of a rowid filter | 1.024 | 9.223.372.036.854.775.807 | 1 | NULL | NO | REQUIRED | NULL |
| OLD | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | Use compatible behavior from previous MariaDB version. See also --old-mode | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| SLAVE_NET_TIMEOUT | NULL | 60 | COMPILE-TIME | 60 | GLOBAL | INT UNSIGNED | Number of seconds to wait for more data from any master/slave connection before aborting the read | 1 | 31.536.000 | 1 | NULL | NO | REQUIRED | NULL |
| QUERY_CACHE_LIMIT | NULL | 1.048.576 | COMPILE-TIME | 1.048.576 | GLOBAL | BIGINT UNSIGNED | Don't cache results that are bigger than this | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| PLUGIN_DIR | NULL | /usr/lib/mysql/plugin/ | COMPILE-TIME | | GLOBAL | VARCHAR | Directory for plugins | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| MAX_INSERT_DELAYED_THREADS | 20 | 20 | COMPILE-TIME | 20 | SESSION | BIGINT UNSIGNED | Alias for max_delayed_threads. Don't start more than this number of threads to handle INSERT DELAYED statements. If set to zero INSERT DELAYED will be not used | 0 | 16.384 | 1 | NULL | NO | NULL | NULL |
| THREAD_POOL_PRIORITY | auto | auto | COMPILE-TIME | auto | SESSION | ENUM | Threadpool priority. High priority connections usually start executing earlier than low priority.If priority set to 'auto', the the actual priority(low or high) is determined based on whether or not connection is inside transaction. | NULL | NULL | NULL | high,low,auto | NO | REQUIRED | NULL |
| BIG_TABLES | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | Old variable, which if set to 1, allows large result sets by saving all temporary sets to disk, avoiding 'table full' errors. No longer needed, as the server now handles this automatically. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_BUFFER_POOL_SIZE_AUTO_MIN | NULL | 134.217.728 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | Minimum innodb_buffer_pool_size for dynamic shrinking on memory pressure | 0 | 9.223.372.036.854.775.807 | 8.388.608 | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_MAX_STATEMENT_STACK | NULL | 10 | COMPILE-TIME | 10 | GLOBAL | BIGINT UNSIGNED | Number of rows per thread in EVENTS_STATEMENTS_CURRENT. | 1 | 256 | 1 | NULL | YES | REQUIRED | NULL |
| INNODB_ADAPTIVE_FLUSHING_LWM | NULL | 10,00 | COMPILE-TIME | 10,00 | GLOBAL | DOUBLE | Percentage of log capacity below which no adaptive flushing happens. | 0 | 70 | NULL | NULL | NO | REQUIRED | NULL |
| COLLATION_SERVER | utf8mb4_general_ci | utf8mb4_general_ci | COMPILE-TIME | utf8mb4_general_ci | SESSION | ENUM | The server default collation | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| INNODB_DEFRAGMENT_FREQUENCY | NULL | 40 | COMPILE-TIME | 40 | GLOBAL | INT UNSIGNED | Do not defragment a single index more than this number of time per second.This controls the number of time defragmentation thread can request X_LOCK on an index. Defragmentation thread will check whether 1/defragment_frequency (s) has passed since it worked on this index last time, and put the index back to the queue if not enough time has passed. The actual frequency can only be lower than this given number. | 1 | 1.000 | 0 | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_MAX_FILE_INSTANCES | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Maximum number of instrumented files. Use 0 to disable, -1 for automated sizing. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| INNODB_LINUX_AIO | NULL | auto | COMPILE-TIME | auto | GLOBAL | ENUM | Specifies which Linux AIO implementation should be used. Possible value are "auto" (default) to select io_uring and fallback to aio, or explicit "io_uring" or "aio" | NULL | NULL | NULL | auto,io_uring,aio | YES | REQUIRED | NULL |
| FT_STOPWORD_FILE | NULL | (built-in) | COMPILE-TIME | | GLOBAL | VARCHAR | Use stopwords from this file instead of built-in list | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| STRICT_PASSWORD_VALIDATION | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | When password validation plugins are enabled, reject passwords that cannot be validated (passwords specified as a hash) | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| RPL_SEMI_SYNC_MASTER_ENABLED | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Enable semi-synchronous replication master (disabled by default). | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| RELAY_LOG_RECOVERY | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Enables automatic relay log recovery right after the database startup, which means that the IO Thread starts re-fetching from the master right after the last transaction processed. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| CHARACTER_SET_SYSTEM | NULL | utf8mb3 | COMPILE-TIME | NULL | GLOBAL | ENUM | The character set used by the server for storing identifiers | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| WSREP_GTID_DOMAIN_ID | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | INT UNSIGNED | When wsrep_gtid_mode is set, this value is used as gtid_domain_id for galera transactions and also copied to the joiner nodes during state transfer. It is ignored, otherwise. | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| HAVE_CRYPT | NULL | YES | COMPILE-TIME | NULL | GLOBAL | VARCHAR | If the crypt() system call is available this variable will be set to YES, otherwise it will be set to NO. If set to NO, the ENCRYPT() function cannot be used. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| THREAD_POOL_STALL_LIMIT | NULL | 500 | COMPILE-TIME | 500 | GLOBAL | INT UNSIGNED | Maximum query execution time in milliseconds,before an executing non-yielding thread is considered stalled.If a worker thread is stalled, additional worker thread may be created to handle remaining clients. | 1 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| QUERY_CACHE_SIZE | NULL | 1.048.576 | COMPILE-TIME | 1.048.576 | GLOBAL | BIGINT UNSIGNED | The memory allocated to store results from old queries | 0 | 9.223.372.036.854.775.807 | 1.024 | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_MAX_SOCKET_INSTANCES | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Maximum number of opened instrumented sockets. Use 0 to disable, -1 for automated sizing. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| QUERY_ALLOC_BLOCK_SIZE | 32.768 | 32.768 | COMPILE-TIME | 32.768 | SESSION | BIGINT UNSIGNED | Allocation block size for query parsing and execution | 1.024 | 4.294.967.295 | 1.024 | NULL | NO | REQUIRED | NULL |
| TX_READ_ONLY | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | Default transaction access mode. If set to OFF, the default, access is read/write. If set to ON, access is read-only. The SET TRANSACTION statement can also change the value of this variable. See SET TRANSACTION and START TRANSACTION. | NULL | NULL | NULL | OFF,ON | NO | NULL | NULL |
| SQL_NOTES | ON | ON | COMPILE-TIME | ON | SESSION | BOOLEAN | If set to 1, the default, warning_count is incremented each time a Note warning is encountered. If set to 0, Note warnings are not recorded. mysqldump has outputs to set this variable to 0 so that no unnecessary increments occur when data is reloaded. See also note_verbosity, which allows one to define with notes are sent. | NULL | NULL | NULL | OFF,ON | NO | NULL | NULL |
| INNODB_RANDOM_READ_AHEAD | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Whether to use read ahead for random access within an extent. | NULL | NULL | NULL | OFF,ON | NO | NONE | NULL |
| METADATA_LOCKS_HASH_INSTANCES | NULL | 8 | COMPILE-TIME | 8 | GLOBAL | BIGINT UNSIGNED | Unused | 1 | 1.024 | 1 | NULL | YES | REQUIRED | NULL |
| TCP_KEEPALIVE_PROBES | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | INT | The number of unacknowledged probes to send before considering the connection dead and notifying the application layer.If set to 0, system dependent default is used. | 0 | 2.147.483 | 1 | NULL | NO | REQUIRED | NULL |
| BINLOG_COMMIT_WAIT_USEC | NULL | 100.000 | COMPILE-TIME | 100.000 | GLOBAL | BIGINT UNSIGNED | Maximum time, in microseconds, to wait for more commits to queue up for binlog group commit. Only takes effect if the value of binlog_commit_wait_count is non-zero. | 0 | 9.223.372.036.854.775.807 | 1 | NULL | NO | REQUIRED | NULL |
| PORT | NULL | 3.306 | AUTO | 0 | GLOBAL | INT UNSIGNED | Port number to use for connection or 0 to default to, my.cnf, $MYSQL_TCP_PORT, /etc/services, built-in default (3306), whatever comes first | 0 | 65.535 | 1 | NULL | YES | REQUIRED | NULL |
| READ_BUFFER_SIZE | 131.072 | 131.072 | COMPILE-TIME | 131.072 | SESSION | BIGINT UNSIGNED | Each thread that does a sequential scan allocates a buffer of this size for each table it scans. If you do many sequential scans, you may want to increase this value | 8.192 | 2.147.483.647 | 4.096 | NULL | NO | REQUIRED | NULL |
| REPLICATE_REWRITE_DB | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Tells the slave to replicate binlog events into a different database than their original target on the master.Example: replicate-rewrite-db=master_db_name->slave_db_name. | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| PERFORMANCE_SCHEMA_MAX_FILE_HANDLES | NULL | 32.768 | COMPILE-TIME | 32.768 | GLOBAL | BIGINT UNSIGNED | Maximum number of opened instrumented files. | 0 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| LOG_BIN_TRUST_FUNCTION_CREATORS | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | If set to FALSE (the default), then when --log-bin is used, creation of a stored function (or trigger) is allowed only to users having the SUPER privilege and only if this stored function (trigger) may not break binary logging. Note that if ALL connections to this server ALWAYS use row-based binary logging, the security issues do not exist and the binary logging cannot break, so you can safely set this to TRUE | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| PID_FILE | NULL | /run/mysqld/mysqld.pid | CONFIG | | GLOBAL | VARCHAR | Pid file used by safe_mysqld | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| INNODB_MONITOR_DISABLE | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Turn off a monitor counter | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| TLS_VERSION | NULL | TLSv1.2,TLSv1.3 | COMPILE-TIME | TLSv1.2,TLSv1.3 | GLOBAL | SET | TLS protocol version for secure connections. | NULL | NULL | NULL | TLSv1.0,TLSv1.1,TLSv1.2,TLSv1.3 | YES | REQUIRED | NULL |
| MYISAM_BLOCK_SIZE | NULL | 1.024 | COMPILE-TIME | 1.024 | GLOBAL | BIGINT UNSIGNED | Block size to be used for MyISAM index pages | 1.024 | 16.384 | 1.024 | NULL | YES | REQUIRED | NULL |
| MIN_EXAMINED_ROW_LIMIT | 0 | 0 | COMPILE-TIME | 0 | SESSION | BIGINT UNSIGNED | Alias for log_slow_min_examined_row_limit. Don't write queries to slow log that examine fewer rows than that | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| MAX_BINLOG_STMT_CACHE_SIZE | NULL | 9.223.372.036.854.775.807 | COMPILE-TIME | 9.223.372.036.854.775.807 | GLOBAL | BIGINT UNSIGNED | Sets the total size of the statement cache | 4.096 | 9.223.372.036.854.775.807 | 4.096 | NULL | NO | REQUIRED | NULL |
| HISTOGRAM_SIZE | 254 | 254 | COMPILE-TIME | 254 | SESSION | BIGINT UNSIGNED | Number of bytes used for a histogram. If set to 0, no histograms are created by ANALYZE. | 0 | 255 | 1 | NULL | NO | REQUIRED | NULL |
| ENCRYPT_TMP_FILES | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Encrypt temporary files (created for filesort, binary log cache, etc) | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| FLUSH_TIME | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | A dedicated thread is created to flush all tables at the given interval | 0 | 31.536.000 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_SPIN_WAIT_DELAY | NULL | 4 | COMPILE-TIME | 4 | GLOBAL | INT UNSIGNED | Maximum delay between polling for a spin lock (4 by default) | 0 | 6.000 | 0 | NULL | NO | OPTIONAL | NULL |
| PSEUDO_THREAD_ID | 200.555 | NULL | COMPILE-TIME | 0 | SESSION ONLY | BIGINT UNSIGNED | This variable is for internal server use | 0 | 4.294.967.295 | 1 | NULL | NO | NULL | NULL |
| INNODB_STATS_INCLUDE_DELETE_MARKED | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Include delete marked records when calculating persistent statistics | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| RPL_SEMI_SYNC_MASTER_TRACE_LEVEL | NULL | 32 | COMPILE-TIME | 32 | GLOBAL | BIGINT UNSIGNED | The tracing level for semi-sync replication. | 0 | 9.223.372.036.854.775.807 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_DEFRAGMENT_STATS_ACCURACY | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | INT UNSIGNED | How many defragment stats changes there are before the stats are written to persistent storage. Set to 0 meaning disable defragment stats tracking. | 0 | 4.294.967.295 | 0 | NULL | NO | REQUIRED | NULL |
| THREAD_POOL_MAX_THREADS | NULL | 65.536 | COMPILE-TIME | 65.536 | GLOBAL | INT UNSIGNED | Maximum allowed number of worker threads in the thread pool | 1 | 65.536 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_LOCK_WAIT_TIMEOUT | 50 | 50 | COMPILE-TIME | 50 | SESSION | INT UNSIGNED | Timeout in seconds an InnoDB transaction may wait for a lock before being rolled back. The value 100000000 is infinite timeout. | 0 | 100.000.000 | 0 | NULL | NO | REQUIRED | NULL |
| SQL_BUFFER_RESULT | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | If set to 1 (0 is default), results from SELECT statements are always placed into temporary tables. This can help the server when it takes a long time to send the results to the client by allowing the table locks to be freed early. | NULL | NULL | NULL | OFF,ON | NO | NULL | NULL |
| INNODB_OLD_BLOCKS_TIME | NULL | 1.000 | COMPILE-TIME | 1.000 | GLOBAL | INT UNSIGNED | Move blocks to the 'new' end of the buffer pool if the first access was at least this many milliseconds ago. The timeout is disabled if 0. | 0 | 4.294.967.295 | 0 | NULL | NO | REQUIRED | NULL |
| OLD_ALTER_TABLE | DEFAULT | DEFAULT | COMPILE-TIME | DEFAULT | SESSION | ENUM | Alias for alter_algorithm. Deprecated. Use --alter-algorithm instead. | NULL | NULL | NULL | DEFAULT,COPY,INPLACE,NOCOPY,INSTANT | NO | OPTIONAL | NULL |
| WSREP_GTID_SEQ_NO | 0 | NULL | COMPILE-TIME | 0 | SESSION ONLY | BIGINT UNSIGNED | Internal server usage, manually set WSREP GTID seqno. | 0 | 9.223.372.036.854.775.807 | 1 | NULL | NO | NULL | NULL |
| PERFORMANCE_SCHEMA_MAX_MEMORY_CLASSES | NULL | 320 | COMPILE-TIME | 320 | GLOBAL | BIGINT UNSIGNED | Maximum number of memory pool instruments. | 0 | 1.024 | 1 | NULL | YES | REQUIRED | NULL |
| WSREP_ALLOWLIST | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Allowed IP addresses split by comma delimiter | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| CHECK_CONSTRAINT_CHECKS | ON | ON | COMPILE-TIME | ON | SESSION | BOOLEAN | check_constraint_checks | NULL | NULL | NULL | OFF,ON | NO | NULL | NULL |
| INNODB_COMPRESSION_FAILURE_THRESHOLD_PCT | NULL | 5 | COMPILE-TIME | 5 | GLOBAL | BIGINT UNSIGNED | If the compression failure rate of a table is greater than this number more padding is added to the pages to reduce the failures. A value of zero implies no padding | 0 | 100 | 0 | NULL | NO | OPTIONAL | NULL |
| KEY_CACHE_AGE_THRESHOLD | NULL | 300 | COMPILE-TIME | 300 | GLOBAL | BIGINT UNSIGNED | This characterizes the number of hits a hot block has to be untouched until it is considered aged enough to be downgraded to a warm block. This specifies the percentage ratio of that number of hits to the total number of blocks in key cache | 100 | 4.294.967.295 | 100 | NULL | NO | REQUIRED | NULL |
| LOCKED_IN_MEMORY | NULL | OFF | COMPILE-TIME | NULL | GLOBAL | BOOLEAN | Whether mysqld was locked in memory with --memlock | NULL | NULL | NULL | OFF,ON | YES | NULL | NULL |
| MASTER_VERIFY_CHECKSUM | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Force checksum verification of logged events in the binary log before sending them to slaves or printing them in the output of SHOW BINLOG EVENTS | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_LRU_FLUSH_SIZE | NULL | 0 | COMPILE-TIME | 32 | GLOBAL | BIGINT UNSIGNED | Deprecated parameter with no effect | 1 | 9.223.372.036.854.775.807 | 0 | NULL | NO | NULL | NULL |
| TMP_TABLE_SIZE | 16.777.216 | 16.777.216 | COMPILE-TIME | 16.777.216 | SESSION | BIGINT UNSIGNED | Alias for tmp_memory_table_size. If an internal in-memory temporary table exceeds this size, MariaDB will automatically convert it to an on-disk MyISAM or Aria table. | 0 | 9.223.372.036.854.775.807 | 16.384 | NULL | NO | REQUIRED | NULL |
| WSREP_MYSQL_REPLICATION_BUNDLE | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | mysql replication group commit | 0 | 1.000 | 1 | NULL | NO | REQUIRED | NULL |
| RPL_SEMI_SYNC_MASTER_WAIT_NO_SLAVE | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Wait until timeout when no semi-synchronous replication slave is available. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_PREFIX_INDEX_CLUSTER_OPTIMIZATION | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Deprecated parameter with no effect | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| GTID_SLAVE_POS | NULL | | COMPILE-TIME | NULL | GLOBAL | VARCHAR | The list of global transaction IDs that were last replicated on the server, one for each replication domain. | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| DEFAULT_MASTER_CONNECTION | | NULL | COMPILE-TIME | | SESSION ONLY | VARCHAR | Master connection to use for all slave variables and slave commands | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| THREAD_POOL_DEDICATED_LISTENER | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | If set to 1,listener thread will not pick up queries | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_LOG_FILE_BUFFERING | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Whether the file system cache for ib_logfile0 is enabled | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| HAVE_QUERY_CACHE | NULL | YES | COMPILE-TIME | NULL | GLOBAL | VARCHAR | If the server supports the query cache, will be set to YES, otherwise will be set to NO. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| INNODB_BUFFER_POOL_DUMP_PCT | NULL | 25 | COMPILE-TIME | 25 | GLOBAL | BIGINT UNSIGNED | Dump only the hottest N% of each buffer pool, defaults to 25 | 1 | 100 | 0 | NULL | NO | REQUIRED | NULL |
| AUTO_INCREMENT_OFFSET | 1 | 1 | COMPILE-TIME | 1 | SESSION | BIGINT UNSIGNED | Offset added to Auto-increment columns. Used when auto-increment-increment != 1 | 1 | 65.535 | 1 | NULL | NO | OPTIONAL | NULL |
| INNODB_ENCRYPT_TABLES | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | ENUM | Enable encryption for tables. Don't forget to enable --innodb-encrypt-log too | NULL | NULL | NULL | OFF,ON,FORCE | NO | OPTIONAL | NULL |
| INNODB_FT_ENABLE_STOPWORD | ON | ON | COMPILE-TIME | ON | SESSION | BOOLEAN | Create FTS index with stopword. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| COLLATION_DATABASE | utf8mb4_general_ci | utf8mb4_general_ci | COMPILE-TIME | utf8mb4_general_ci | SESSION | ENUM | The collation of the database character set | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| EXTERNAL_USER | | NULL | COMPILE-TIME | NULL | SESSION ONLY | VARCHAR | The external user account used when logging in | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| INNODB_MONITOR_ENABLE | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Turn on a monitor counter | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| LOG_BIN | NULL | OFF | COMPILE-TIME | NULL | GLOBAL | BOOLEAN | Whether the binary log is enabled | NULL | NULL | NULL | OFF,ON | YES | NULL | NULL |
| INNODB_LOG_BUFFER_SIZE | NULL | 16.777.216 | COMPILE-TIME | 16.777.216 | GLOBAL | INT UNSIGNED | Redo log buffer size in bytes. | 2.097.152 | 2.147.479.552 | 4.096 | NULL | YES | REQUIRED | NULL |
| BINLOG_ROW_IMAGE | FULL | FULL | COMPILE-TIME | FULL | SESSION | ENUM | Controls whether rows should be logged in 'FULL', 'NOBLOB' or 'MINIMAL' formats. 'FULL', means that all columns in the before and after image are logged. 'NOBLOB', means that mysqld avoids logging blob columns whenever possible (eg, blob column was not changed or is not part of primary key). 'MINIMAL', means that a PK equivalent (PK columns or full row if there is no PK in the table) is logged in the before image, and only changed columns are logged in the after image. (Default: FULL). | NULL | NULL | NULL | MINIMAL,NOBLOB,FULL | NO | REQUIRED | NULL |
| HOST_CACHE_SIZE | NULL | 279 | AUTO | 128 | GLOBAL | BIGINT UNSIGNED | How many host names should be cached to avoid resolving. | 0 | 65.536 | 1 | NULL | NO | REQUIRED | NULL |
| SKIP_NETWORKING | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Don't allow connection with TCP/IP | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| INNODB_MAX_PURGE_LAG | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | Desired maximum length of the purge queue (0 = no limit) | 0 | 9.223.372.036.854.775.807 | 0 | NULL | NO | REQUIRED | NULL |
| WSREP_ON | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | To enable wsrep replication | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| MYISAM_MAX_SORT_FILE_SIZE | NULL | 9.223.372.036.853.727.232 | COMPILE-TIME | 9.223.372.036.853.727.232 | GLOBAL | BIGINT UNSIGNED | Don't use the fast sort index method to created index if the temporary file would get bigger than this | 0 | 9.223.372.036.854.775.807 | 1.048.576 | NULL | NO | REQUIRED | NULL |
| INIT_CONNECT | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Command(s) that are executed for each new connection (unless the user has SUPER privilege) | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| INNODB_LRU_SCAN_DEPTH | NULL | 1.536 | COMPILE-TIME | 1.536 | GLOBAL | BIGINT UNSIGNED | How deep to scan LRU to keep it clean | 100 | 9.223.372.036.854.775.807 | 0 | NULL | NO | REQUIRED | NULL |
| TABLE_DEFINITION_CACHE | NULL | 400 | AUTO | 400 | GLOBAL | BIGINT UNSIGNED | The number of cached table definitions | 400 | 2.097.152 | 1 | NULL | NO | REQUIRED | NULL |
| WSREP_LOG_CONFLICTS | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | To log multi-master conflicts | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_FT_CACHE_SIZE | NULL | 8.000.000 | COMPILE-TIME | 8.000.000 | GLOBAL | BIGINT UNSIGNED | InnoDB Fulltext search cache size in bytes | 1.600.000 | 1.099.511.627.776 | 0 | NULL | NO | REQUIRED | NULL |
| OLD_MODE | UTF8_IS_UTF8MB3 | UTF8_IS_UTF8MB3 | COMPILE-TIME | UTF8_IS_UTF8MB3 | SESSION | SET | Used to emulate old behavior from earlier MariaDB or MySQL versions | NULL | NULL | NULL | NO_DUP_KEY_WARNINGS_WITH_IGNORE,NO_PROGRESS_INFO,ZERO_DATE_TIME_CAST,UTF8_IS_UTF8MB3,IGNORE_INDEX_ONLY_FOR_JOIN,COMPAT_5_1_CHECKSUM,NO_NULL_COLLATION_IDS | NO | REQUIRED | NULL |
| WSREP_SLAVE_UK_CHECKS | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Should slave thread do secondary index uniqueness checks | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| DEFAULT_REGEX_FLAGS | | | COMPILE-TIME | | SESSION | SET | Default flags for the regex library | NULL | NULL | NULL | DOTALL,DUPNAMES,EXTENDED,EXTENDED_MORE,EXTRA,MULTILINE,UNGREEDY | NO | REQUIRED | NULL |
| SLAVE_PARALLEL_WORKERS | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | Alias for slave_parallel_threads | 0 | 16.383 | 1 | NULL | NO | REQUIRED | NULL |
| HISTOGRAM_TYPE | DOUBLE_PREC_HB | DOUBLE_PREC_HB | COMPILE-TIME | DOUBLE_PREC_HB | SESSION | ENUM | Specifies type of the histograms created by ANALYZE. Possible values are: SINGLE_PREC_HB - single precision height-balanced, DOUBLE_PREC_HB - double precision height-balanced, JSON_HB - height-balanced, stored as JSON. | NULL | NULL | NULL | SINGLE_PREC_HB,DOUBLE_PREC_HB,JSON_HB | NO | REQUIRED | NULL |
| BASEDIR | NULL | /usr | CONFIG | | GLOBAL | VARCHAR | Path to installation directory. All paths are usually resolved relative to this | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| HAVE_COMPRESS | NULL | YES | COMPILE-TIME | NULL | GLOBAL | VARCHAR | If the zlib compression library is accessible to the server, this will be set to YES, otherwise it will be NO. The COMPRESS() and UNCOMPRESS() functions will only be available if set to YES. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| METADATA_LOCKS_CACHE_SIZE | NULL | 1.024 | COMPILE-TIME | 1.024 | GLOBAL | BIGINT UNSIGNED | Unused | 1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| INNODB_USE_ATOMIC_WRITES | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Enable atomic writes, instead of using the doublewrite buffer, for files on devices that supports atomic writes. | NULL | NULL | NULL | OFF,ON | YES | NONE | NULL |
| LAST_INSERT_ID | 0 | NULL | COMPILE-TIME | 0 | SESSION ONLY | BIGINT UNSIGNED | The value to be returned from LAST_INSERT_ID() | 0 | 9.223.372.036.854.775.807 | 1 | NULL | NO | NULL | NULL |
| PROXY_PROTOCOL_NETWORKS | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Enable proxy protocol for these source networks. The syntax is a comma separated list of IPv4 and IPv6 networks. If the network doesn't contain mask, it is considered to be a single host. "*" represents all networks and must the only directive on the line. String "localhost" represents non-TCP local connections (Unix domain socket, Windows named pipe or shared memory). | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| HOSTNAME | NULL | ayam-mrothol-dev-ubuntu-s-1vcpu-512mb-10gb-sgp1 | COMPILE-TIME | NULL | GLOBAL | VARCHAR | Server host name | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| INNODB_DOUBLEWRITE | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Enable InnoDB doublewrite buffer (enabled by default). Disable with --skip-innodb-doublewrite. | NULL | NULL | NULL | OFF,ON | YES | NONE | NULL |
| DEFAULT_PASSWORD_LIFETIME | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | INT UNSIGNED | This defines the global password expiration policy. 0 means automatic password expiration is disabled. If the value is a positive integer N, the passwords must be changed every N days. This behavior can be overridden using the password expiration options in ALTER USER. | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_STATS_PERSISTENT | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | InnoDB persistent statistics enabled for all tables unless overridden at table level | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| PERFORMANCE_SCHEMA_MAX_STATEMENT_CLASSES | NULL | 222 | COMPILE-TIME | 222 | GLOBAL | BIGINT UNSIGNED | Maximum number of statement instruments. | 0 | 256 | 1 | NULL | YES | REQUIRED | NULL |
| DEFAULT_WEEK_FORMAT | 0 | 0 | COMPILE-TIME | 0 | SESSION | BIGINT UNSIGNED | The default week format used by WEEK() functions | 0 | 7 | 1 | NULL | NO | REQUIRED | NULL |
| THREAD_CACHE_SIZE | NULL | 151 | AUTO | 256 | GLOBAL | BIGINT UNSIGNED | How many threads we should keep in a cache for reuse. These are freed after 5 minutes of idle time | 0 | 16.384 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_CHANGE_BUFFER_MAX_SIZE | NULL | 25 | COMPILE-TIME | 25 | GLOBAL | INT UNSIGNED | Maximum on-disk size of change buffer in terms of percentage of the buffer pool. | 0 | 50 | 0 | NULL | NO | REQUIRED | NULL |
| LOG_BIN_COMPRESS_MIN_LEN | NULL | 256 | COMPILE-TIME | 256 | GLOBAL | INT UNSIGNED | Minimum length of sql statement(in statement mode) or record(in row mode)that can be compressed. | 10 | 1.024 | 1 | NULL | NO | OPTIONAL | NULL |
| INNODB_DEFAULT_ROW_FORMAT | NULL | dynamic | COMPILE-TIME | dynamic | GLOBAL | ENUM | The default ROW FORMAT for all innodb tables created without explicit ROW_FORMAT. Possible values are REDUNDANT, COMPACT, and DYNAMIC. The ROW_FORMAT value COMPRESSED is not allowed | NULL | NULL | NULL | redundant,compact,dynamic | NO | REQUIRED | NULL |
| LOG_SLOW_SLAVE_STATEMENTS | ON | ON | COMPILE-TIME | ON | SESSION | BOOLEAN | Log slow statements executed by slave thread to the slow log if it is open. Resets or sets the option 'slave' in log_slow_disabled_statements | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_USE_NATIVE_AIO | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Use native AIO if supported on this platform. | NULL | NULL | NULL | OFF,ON | YES | NONE | NULL |
| OPTIMIZER_TRACE_MAX_MEM_SIZE | 1.048.576 | 1.048.576 | COMPILE-TIME | 1.048.576 | SESSION | BIGINT UNSIGNED | Maximum allowed size of an optimizer trace | 0 | 9.223.372.036.854.775.807 | 1 | NULL | NO | REQUIRED | NULL |
| SESSION_TRACK_SCHEMA | ON | ON | COMPILE-TIME | ON | SESSION | BOOLEAN | Track changes to the default schema. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| BINLOG_CACHE_SIZE | NULL | 32.768 | COMPILE-TIME | 32.768 | GLOBAL | BIGINT UNSIGNED | The size of the transactional cache for updates to transactional engines for the binary log. If you often use transactions containing many statements, you can increase this to get more performance | 4.096 | 9.223.372.036.854.775.807 | 4.096 | NULL | NO | REQUIRED | NULL |
| INNODB_UNDO_TABLESPACES | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | INT UNSIGNED | Number of undo tablespaces to use. | 0 | 127 | 0 | NULL | YES | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_MAX_DIGEST_LENGTH | NULL | 1.024 | COMPILE-TIME | 1.024 | GLOBAL | BIGINT | Maximum length considered for digest text, when stored in performance_schema tables. | 0 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| INNODB_BUF_DUMP_STATUS_FREQUENCY | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | A number between [0, 100] that tells how oftern buffer pool dump status in percentages should be printed. E.g. 10 means that buffer pool dump status is printed when every 10% of number of buffer pool pages are dumped. Default is 0 (only start and end status is printed). | 0 | 100 | 0 | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_HOSTS_SIZE | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Maximum number of instrumented hosts. Use 0 to disable, -1 for automated sizing. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| DEADLOCK_SEARCH_DEPTH_SHORT | 4 | 4 | COMPILE-TIME | 4 | SESSION | BIGINT UNSIGNED | Short search depth for the two-step deadlock detection | 0 | 32 | 1 | NULL | NO | REQUIRED | NULL |
| PRELOAD_BUFFER_SIZE | 32.768 | 32.768 | COMPILE-TIME | 32.768 | SESSION | BIGINT UNSIGNED | The size of the buffer that is allocated when preloading indexes | 1.024 | 1.073.741.824 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_FT_MIN_TOKEN_SIZE | NULL | 3 | COMPILE-TIME | 3 | GLOBAL | BIGINT UNSIGNED | InnoDB Fulltext search minimum token size in characters | 0 | 16 | 0 | NULL | YES | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_USERS_SIZE | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Maximum number of instrumented users. Use 0 to disable, -1 for automated sizing. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| INNODB_FT_USER_STOPWORD_TABLE | | | COMPILE-TIME | | SESSION | VARCHAR | User supplied stopword table name, effective in the session level. | NULL | NULL | NULL | NULL | NO | OPTIONAL | NULL |
| SLAVE_DDL_EXEC_MODE | NULL | IDEMPOTENT | COMPILE-TIME | IDEMPOTENT | GLOBAL | ENUM | How replication events should be executed. Legal values are STRICT and IDEMPOTENT (default). In IDEMPOTENT mode, replication will not stop for DDL operations that are idempotent. This means that CREATE TABLE is treated as CREATE TABLE OR REPLACE and DROP TABLE is treated as DROP TABLE IF EXISTS. | NULL | NULL | NULL | STRICT,IDEMPOTENT | NO | REQUIRED | NULL |
| SERVER_ID | 1 | 1 | COMPILE-TIME | 1 | SESSION | BIGINT UNSIGNED | Uniquely identifies the server instance in the community of replication partners | 1 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| CHARACTER_SET_DATABASE | utf8mb4 | utf8mb4 | COMPILE-TIME | utf8mb4 | SESSION | ENUM | The character set used by the default database | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| ARIA_MAX_SORT_FILE_SIZE | NULL | 9.223.372.036.853.727.232 | COMPILE-TIME | 9.223.372.036.853.727.232 | GLOBAL | BIGINT UNSIGNED | Don't use the fast sort index method to created index if the temporary file would get bigger than this. | 0 | 9.223.372.036.854.775.807 | 1.048.576 | NULL | NO | REQUIRED | NULL |
| DATE_FORMAT | NULL | %Y-%m-%d | COMPILE-TIME | %Y-%m-%d | GLOBAL | VARCHAR | The DATE format (ignored) | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| INNODB_TEMP_DATA_FILE_PATH | NULL | ibtmp1:12M:autoextend | COMPILE-TIME | ibtmp1:12M:autoextend | GLOBAL | VARCHAR | Path to files and their sizes making temp-tablespace. | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| LOG_SLOW_QUERY_FILE | NULL | ayam-mrothol-dev-ubuntu-s-1vcpu-512mb-10gb-sgp1-slow.log | COMPILE-TIME | | GLOBAL | VARCHAR | Log slow queries to given log file. Defaults logging to 'hostname'-slow.log. Must be enabled to activate other slow log options | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| USE_STAT_TABLES | PREFERABLY_FOR_QUERIES | PREFERABLY_FOR_QUERIES | COMPILE-TIME | PREFERABLY_FOR_QUERIES | SESSION | ENUM | Specifies how to use system statistics tables | NULL | NULL | NULL | NEVER,COMPLEMENTARY,PREFERABLY,COMPLEMENTARY_FOR_QUERIES,PREFERABLY_FOR_QUERIES | NO | REQUIRED | NULL |
| TIMESTAMP | 1.789.750.478,20 | NULL | COMPILE-TIME | 0,00 | SESSION ONLY | DOUBLE | Set the time for this client | 0 | 2.147.483.647 | NULL | NULL | NO | NULL | NULL |
| INNODB_ALTER_COPY_BULK | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Allow bulk insert operation for copy alter operation | NULL | NULL | NULL | OFF,ON | NO | NONE | NULL |
| BINLOG_STMT_CACHE_SIZE | NULL | 32.768 | COMPILE-TIME | 32.768 | GLOBAL | BIGINT UNSIGNED | The size of the statement cache for updates to non-transactional engines for the binary log. If you often use statements updating a great number of rows, you can increase this to get more performance. | 4.096 | 9.223.372.036.854.775.807 | 4.096 | NULL | NO | REQUIRED | NULL |
| INNODB_LOG_FILE_MMAP | NULL | OFF | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Whether ib_logfile0 resides in persistent memory (when supported) or should initially be memory-mapped | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| GENERAL_LOG | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Log connections and queries to a table or log file. Defaults logging to a file 'hostname'.log or a table mysql.general_logif --log-output=TABLE is used. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_STATS_PERSISTENT_SAMPLE_PAGES | NULL | 20 | COMPILE-TIME | 20 | GLOBAL | INT UNSIGNED | The number of leaf index pages to sample when calculating persistent statistics (by ANALYZE, default 20) | 1 | 4.294.967.295 | 0 | NULL | NO | REQUIRED | NULL |
| MAX_CONNECT_ERRORS | NULL | 100 | COMPILE-TIME | 100 | GLOBAL | BIGINT UNSIGNED | If there is more than this number of interrupted connections from a host this host will be blocked from further connections | 1 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| ARIA_GROUP_COMMIT_INTERVAL | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | Interval between commits in microseconds (1/1000000 sec). 0 stands for no waiting for other threads to come and do a commit in "hard" mode and no sync()/commit at all in "soft" mode. Option has only an effect if aria_group_commit is used | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| REPLICATE_DO_TABLE | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Tells the slave to restrict replication to tables in the comma-separated list. | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| PROFILING_HISTORY_SIZE | 15 | 15 | COMPILE-TIME | 15 | SESSION | BIGINT UNSIGNED | Number of statements about which profiling information is maintained. If set to 0, no profiles are stored. See SHOW PROFILES. | 0 | 100 | 1 | NULL | NO | REQUIRED | NULL |
| TX_ISOLATION | REPEATABLE-READ | REPEATABLE-READ | COMPILE-TIME | REPEATABLE-READ | SESSION | ENUM | Default transaction isolation level | NULL | NULL | NULL | READ-UNCOMMITTED,READ-COMMITTED,REPEATABLE-READ,SERIALIZABLE | NO | NULL | NULL |
| INNODB_CHANGE_BUFFERING | NULL | none | COMPILE-TIME | none | GLOBAL | ENUM | Buffer changes to secondary indexes. | NULL | NULL | NULL | none,inserts,deletes,changes,purges,all | NO | REQUIRED | NULL |
| HAVE_GEOMETRY | NULL | YES | COMPILE-TIME | NULL | GLOBAL | VARCHAR | If the server supports spatial data types, will be set to YES, otherwise will be set to NO. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| INNODB_STATS_MODIFIED_COUNTER | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | The number of rows modified before we calculate new statistics (default 0 = current limits) | 0 | 9.223.372.036.854.775.807 | 0 | NULL | NO | REQUIRED | NULL |
| RELAY_LOG | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | The location and name to use for relay logs. | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| BINLOG_OPTIMIZE_THREAD_SCHEDULING | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Run fast part of group commit in a single thread, to optimize kernel thread scheduling. On by default. Disable to run each transaction in group commit in its own thread, which can be slower at very high concurrency. This option is mostly for testing one algorithm versus the other, and it should not normally be necessary to change it. | NULL | NULL | NULL | OFF,ON | YES | REQUIRED | NULL |
| SLOW_QUERY_LOG | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | Alias for log_slow_query. Log slow queries to a table or log file. Defaults logging to a file 'hostname'-slow.log or a table mysql.slow_log if --log-output=TABLE is used. Must be enabled to activate other slow log options. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| ENCRYPT_BINLOG | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Encrypt binary logs (including relay logs) | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| OPTIMIZER_ADJUST_SECONDARY_KEY_COSTS | fix_reuse_range_for_ref,fix_card_multiplier | fix_reuse_range_for_ref,fix_card_multiplier | COMPILE-TIME | fix_reuse_range_for_ref,fix_card_multiplier | SESSION | SET | A bit field with the following values: adjust_secondary_key_cost = Update secondary key costs for ranges to be at least 5x of clustered primary key costs. disable_max_seek = Disable 'max_seek optimization' for secondary keys and slight adjustment of filter cost. disable_forced_index_in_group_by = Disable automatic forced index in GROUP BY. fix_innodb_cardinality = Disable doubling of the Cardinality for InnoDB secondary keys. fix_reuse_range_for_ref = Do a better job at reusing range access estimates when estimating ref access. fix_card_multiplier = Fix the computation in selectivity_for_indexes. fix_derived_table_read_cost = Fix the cost of reading materialized derived table. This variable will be deleted in MariaDB 11.0 as it is not needed with the new 11.0 optimizer. | NULL | NULL | NULL | adjust_secondary_key_cost,disable_max_seek,disable_forced_index_in_group_by,fix_innodb_cardinality,fix_reuse_range_for_ref,fix_card_multiplier,fix_derived_table_read_cost | NO | REQUIRED | NULL |
| SQL_SELECT_LIMIT | 9.223.372.036.854.775.807 | 9.223.372.036.854.775.807 | COMPILE-TIME | 9.223.372.036.854.775.807 | SESSION | BIGINT UNSIGNED | The maximum number of rows to return from SELECT statements | 0 | 9.223.372.036.854.775.807 | 1 | NULL | NO | NULL | NULL |
| INNODB_FT_SERVER_STOPWORD_TABLE | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | The user supplied stopword table name. | NULL | NULL | NULL | NULL | NO | OPTIONAL | NULL |
| ARIA_STATS_METHOD | nulls_unequal | nulls_unequal | COMPILE-TIME | nulls_unequal | SESSION | ENUM | Specifies how Aria index statistics collection code should treat NULLs | NULL | NULL | NULL | nulls_unequal,nulls_equal,nulls_ignored | NO | REQUIRED | NULL |
| GTID_DOMAIN_ID | 0 | 0 | COMPILE-TIME | 0 | SESSION | INT UNSIGNED | Used with global transaction ID to identify logically independent replication streams. When events can propagate through multiple parallel paths (for example multiple masters), each independent source server must use a distinct domain_id. For simple tree-shaped replication topologies, it can be left at its default, 0. | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| OPEN_FILES_LIMIT | NULL | 32.183 | AUTO | 0 | GLOBAL | BIGINT UNSIGNED | If this is not 0, then mysqld will use this value to reserve file descriptors to use with setrlimit(). If this value is 0 or autoset then mysqld will reserve max_connections*5 or max_connections + table_cache*2 (whichever is larger) number of file descriptors | 0 | 4.294.967.295 | 1 | NULL | YES | REQUIRED | NULL |
| BINLOG_EXPIRE_LOGS_SECONDS | NULL | 864.000 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | If non-zero, binary logs will be purged after binlog_expire_logs_seconds seconds; It and expire_logs_days are linked, such that changes in one are converted into the other. Possible purges happen at startup and at binary log rotation. | 0 | 8.553.600 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_COMPRESSION_ALGORITHM | NULL | zlib | COMPILE-TIME | zlib | GLOBAL | ENUM | Compression algorithm used on page compression. One of: none, zlib, lz4, lzo, lzma, bzip2, or snappy | NULL | NULL | NULL | none,zlib,lz4,lzo,lzma,bzip2,snappy | NO | OPTIONAL | NULL |
| MAX_RELAY_LOG_SIZE | 1.073.741.824 | 1.073.741.824 | AUTO | 1.073.741.824 | SESSION | BIGINT UNSIGNED | relay log will be rotated automatically when the size exceeds this value. If 0 at startup, it's set to max_binlog_size | 4.096 | 1.073.741.824 | 4.096 | NULL | NO | REQUIRED | NULL |
| PLUGIN_MATURITY | NULL | gamma | COMPILE-TIME | gamma | GLOBAL | ENUM | The lowest desirable plugin maturity. Plugins less mature than that will not be installed or loaded | NULL | NULL | NULL | unknown,experimental,alpha,beta,gamma,stable | YES | REQUIRED | NULL |
| MAX_RECURSIVE_ITERATIONS | 1.000 | 1.000 | COMPILE-TIME | 1.000 | SESSION | BIGINT UNSIGNED | Maximum number of iterations when executing recursive queries | 0 | 4.294.967.295 | 1 | NULL | NO | OPTIONAL | NULL |
| INNODB_PURGE_THREADS | NULL | 4 | COMPILE-TIME | 4 | GLOBAL | INT UNSIGNED | Number of tasks for purging transaction history | 1 | 32 | 0 | NULL | NO | OPTIONAL | NULL |
| OPTIMIZER_SWITCH | index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on,not_null_range_scan=off,hash_join_cardinality=off,cset_narrowing=off | index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on,not_null_range_scan=off,hash_join_cardinality=off,cset_narrowing=off | COMPILE-TIME | index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on,not_null_range_scan=off,hash_join_cardinality=off,cset_narrowing=off | SESSION | FLAGSET | Fine-tune the optimizer behavior | NULL | NULL | NULL | index_merge,index_merge_union,index_merge_sort_union,index_merge_intersection,index_merge_sort_intersection,engine_condition_pushdown,index_condition_pushdown,derived_merge,derived_with_keys,firstmatch,loosescan,materialization,in_to_exists,semijoin,partial_match_rowid_merge,partial_match_table_scan,subquery_cache,mrr,mrr_cost_based,mrr_sort_keys,outer_join_with_cache,semijoin_with_cache,join_cache_incremental,join_cache_hashed,join_cache_bka,optimize_join_buffer_size,table_elimination,extended_keys,exists_to_in,orderby_uses_equalities,condition_pushdown_for_derived,split_materialized,condition_pushdown_for_subquery,rowid_filter,condition_pushdown_from_having,not_null_range_scan,hash_join_cardinality,cset_narrowing,default | NO | REQUIRED | NULL |
| PROFILING | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | If set to 1 (0 is default), statement profiling will be enabled. See SHOW PROFILES and SHOW PROFILE. | NULL | NULL | NULL | OFF,ON | NO | NULL | NULL |
| OPTIMIZER_JOIN_LIMIT_PREF_RATIO | 0 | 0 | COMPILE-TIME | 0 | SESSION | BIGINT UNSIGNED | For queries with JOIN and ORDER BY LIMIT : make the optimizer consider a join order that allows to short-cut execution after producing #LIMIT matches if that promises N times speedup. (A conservative setting here would be is a high value, like 100 so the short-cutting plan is used if it promises a speedup of 100x or more). Short-cutting plans are inherently risky so the default is 0 which means do not consider this optimization | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| ARIA_PAGECACHE_BUFFER_SIZE | NULL | 134.217.728 | COMPILE-TIME | 134.217.728 | GLOBAL | BIGINT UNSIGNED | The size of the buffer used for index blocks for Aria tables. Increase this to get better index handling (for all reads and multiple writes) to as much as you can afford. | 131.072 | 9.223.372.036.854.775.807 | 1 | NULL | YES | REQUIRED | NULL |
| MYISAM_MMAP_SIZE | NULL | 9.223.372.036.854.775.807 | COMPILE-TIME | 9.223.372.036.854.775.807 | GLOBAL | BIGINT UNSIGNED | Restricts the total memory used for memory mapping of MySQL tables | 7 | 9.223.372.036.854.775.807 | 1 | NULL | YES | REQUIRED | NULL |
| EXPENSIVE_SUBQUERY_LIMIT | 100 | 100 | COMPILE-TIME | 100 | SESSION | BIGINT UNSIGNED | The maximum number of rows a subquery may examine in order to be executed during optimization and used for constant optimization | 0 | 9.223.372.036.854.775.807 | 1 | NULL | NO | REQUIRED | NULL |
| WSREP_IGNORE_APPLY_ERRORS | NULL | 7 | COMPILE-TIME | 7 | GLOBAL | INT UNSIGNED | Ignore replication errors | 0 | 7 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_BUFFER_POOL_DUMP_AT_SHUTDOWN | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Dump the buffer pool into a file named @@innodb_buffer_pool_filename | NULL | NULL | NULL | OFF,ON | NO | REQUIRED | NULL |
| NET_BUFFER_LENGTH | 16.384 | 16.384 | COMPILE-TIME | 16.384 | SESSION | BIGINT UNSIGNED | Buffer length for TCP/IP and socket communication | 1.024 | 1.048.576 | 1.024 | NULL | NO | REQUIRED | NULL |
| SSL_CRLPATH | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | CRL directory (check OpenSSL docs, implies --ssl) | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| SYNC_BINLOG | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | INT UNSIGNED | Synchronously flush binary log to disk after every #th event. Use 0 (default) to disable synchronous flushing | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| DEADLOCK_SEARCH_DEPTH_LONG | 15 | 15 | COMPILE-TIME | 15 | SESSION | BIGINT UNSIGNED | Long search depth for the two-step deadlock detection | 0 | 33 | 1 | NULL | NO | REQUIRED | NULL |
| GTID_POS_AUTO_ENGINES | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | List of engines for which to automatically create a mysql.gtid_slave_pos_ENGINE table, if a transaction using that engine is replicated. This can be used to avoid introducing cross-engine transactions, if engines are used different from that used by table mysql.gtid_slave_pos | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| MRR_BUFFER_SIZE | 262.144 | 262.144 | COMPILE-TIME | 262.144 | SESSION | BIGINT UNSIGNED | Size of buffer to use when using MRR with range access | 8.192 | 2.147.483.647 | 1 | NULL | NO | REQUIRED | NULL |
| SOCKET | NULL | /run/mysqld/mysqld.sock | CONFIG | | GLOBAL | VARCHAR | Socket file to use for connection | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| INNODB_MAX_DIRTY_PAGES_PCT_LWM | NULL | 0,00 | COMPILE-TIME | 0,00 | GLOBAL | DOUBLE | Percentage of dirty pages at which flushing kicks in. The value 0 (default) means 'refer to innodb_max_dirty_pages_pct'. | 0 | 100,00 | NULL | NULL | NO | REQUIRED | NULL |
| VERSION_SSL_LIBRARY | NULL | OpenSSL 3.0.13 30 Jan 2024 | COMPILE-TIME | NULL | GLOBAL | VARCHAR | Version of the used SSL library | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| IDLE_WRITE_TRANSACTION_TIMEOUT | 0 | 0 | COMPILE-TIME | 0 | SESSION | INT UNSIGNED | The number of seconds the server waits for write idle transaction | 0 | 31.536.000 | 1 | NULL | NO | REQUIRED | NULL |
| WSREP_START_POSITION | NULL | 00000000-0000-0000-0000-000000000000:-1 | COMPILE-TIME | 00000000-0000-0000-0000-000000000000:-1 | GLOBAL | VARCHAR | global transaction position to start from | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| FOREIGN_KEY_CHECKS | ON | ON | COMPILE-TIME | ON | SESSION | BOOLEAN | If set to 1 (the default) foreign key constraints (including ON UPDATE and ON DELETE behavior) InnoDB tables are checked, while if set to 0, they are not checked. 0 is not recommended for normal use, though it can be useful in situations where you know the data is consistent, but want to reload data in a different order from that that specified by parent/child relationships. Setting this variable to 1 does not retrospectively check for inconsistencies introduced while set to 0. | NULL | NULL | NULL | OFF,ON | NO | NULL | NULL |
| LOG_ERROR | NULL | | COMPILE-TIME | 0 | GLOBAL | VARCHAR | Log errors to file (instead of stdout). If file name is not specified then 'datadir'/'log-basename'.err or the 'pid-file' path with extension .err is used | NULL | NULL | NULL | NULL | YES | OPTIONAL | NULL |
| INNODB_MONITOR_RESET | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Reset a monitor counter | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| WAIT_TIMEOUT | 28.800 | 28.800 | COMPILE-TIME | 28.800 | SESSION | BIGINT UNSIGNED | The number of seconds the server waits for activity on a connection before closing it | 1 | 31.536.000 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_STATS_AUTO_RECALC | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | InnoDB automatic recalculation of persistent statistics enabled for all tables unless overridden at table level (automatic recalculation is only done when InnoDB decides that the table has changed too much and needs a new statistics) | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| REPLICATE_DO_DB | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Tell the slave to restrict replication to updates of tables whose names appear in the comma-separated list. For statement-based replication, only the default database (that is, the one selected by USE) is considered, not any explicitly mentioned tables in the query. For row-based replication, the actual names of table(s) being updated are checked. | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| INNODB_DEFRAGMENT | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Enable/disable InnoDB defragmentation (default FALSE). When set to FALSE, all existing defragmentation will be paused. And new defragmentation command will fail.Paused defragmentation commands will resume when this variable is set to true again. | NULL | NULL | NULL | OFF,ON | NO | REQUIRED | NULL |
| VERSION_MALLOC_LIBRARY | NULL | system | COMPILE-TIME | NULL | GLOBAL | VARCHAR | Version of the used malloc library | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| MAX_TMP_TABLES | 32 | 32 | COMPILE-TIME | 32 | SESSION | BIGINT UNSIGNED | Unused, will be removed. | 1 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| MYISAM_REPAIR_THREADS | 1 | 1 | COMPILE-TIME | 1 | SESSION | BIGINT UNSIGNED | If larger than 1, when repairing a MyISAM table all indexes will be created in parallel, with one thread per index. The value of 1 disables parallel repair | 1 | 9.223.372.036.854.775.807 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_FATAL_SEMAPHORE_WAIT_THRESHOLD | NULL | 600 | COMPILE-TIME | 600 | GLOBAL | BIGINT UNSIGNED | Maximum number of seconds that semaphore times out in InnoDB. | 1 | 4.294.967.295 | 0 | NULL | YES | REQUIRED | NULL |
| INNODB_FT_MAX_TOKEN_SIZE | NULL | 84 | COMPILE-TIME | 84 | GLOBAL | BIGINT UNSIGNED | InnoDB Fulltext search maximum token size in characters | 10 | 84 | 0 | NULL | YES | REQUIRED | NULL |
| THREAD_STACK | NULL | 299.008 | COMPILE-TIME | 299.008 | GLOBAL | BIGINT UNSIGNED | The stack size for each thread | 131.072 | 9.223.372.036.854.775.807 | 1.024 | NULL | YES | REQUIRED | NULL |
| GTID_IGNORE_DUPLICATES | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | When set, different master connections in multi-source replication are allowed to receive and process event groups with the same GTID (when using GTID mode). Only one will be applied, any others will be ignored. Within a given replication domain, just the sequence number will be used to decide whether a given GTID has been already applied; this means it is the responsibility of the user to ensure that GTID sequence numbers are strictly increasing. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_FT_SORT_PLL_DEGREE | NULL | 2 | COMPILE-TIME | 2 | GLOBAL | BIGINT UNSIGNED | InnoDB Fulltext search parallel sort degree, will round up to nearest power of 2 number | 1 | 16 | 0 | NULL | YES | REQUIRED | NULL |
| WSREP_NOTIFY_CMD | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| SESSION_TRACK_TRANSACTION_INFO | OFF | OFF | COMPILE-TIME | OFF | SESSION | ENUM | Track changes to the transaction attributes. OFF to disable; STATE to track just transaction state (Is there an active transaction? Does it have any data? etc.); CHARACTERISTICS to track transaction state and report all statements needed to start a transaction with the same characteristics (isolation level, read only/read write,snapshot - but not any work done / data modified within the transaction). | NULL | NULL | NULL | OFF,STATE,CHARACTERISTICS | NO | REQUIRED | NULL |
| WSREP_MAX_WS_ROWS | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | Max number of rows in write set | 0 | 1.048.576 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_FILL_FACTOR | NULL | 100 | COMPILE-TIME | 100 | GLOBAL | INT UNSIGNED | Percentage of B-tree page filled during bulk insert | 10 | 100 | 0 | NULL | NO | REQUIRED | NULL |
| QUERY_CACHE_WLOCK_INVALIDATE | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | Invalidate queries in query cache on LOCK for write | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_ADAPTIVE_FLUSHING | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Attempt flushing dirty pages to avoid IO bursts at checkpoints. | NULL | NULL | NULL | OFF,ON | NO | NONE | NULL |
| WSREP_DESYNC | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | To desynchronize the node from the cluster | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_FILE_PER_TABLE | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Stores each InnoDB table to an .ibd file in the database dir. | NULL | NULL | NULL | OFF,ON | NO | NONE | NULL |
| OPTIMIZER_SELECTIVITY_SAMPLING_LIMIT | 100 | 100 | COMPILE-TIME | 100 | SESSION | BIGINT UNSIGNED | Controls number of record samples to check condition selectivity | 10 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| EXTRA_PORT | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | INT UNSIGNED | Extra port number to use for tcp connections in a one-thread-per-connection manner. 0 means don't use another port | 0 | 65.535 | 1 | NULL | YES | REQUIRED | NULL |
| WSREP_SLAVE_FK_CHECKS | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Should slave thread do foreign key constraint checks | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_LOG_CHECKPOINT_NOW | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Write back dirty pages from the buffer pool and update the log checkpoint | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| VERSION_COMMENT | NULL | Ubuntu 24.04 | COMPILE-TIME | NULL | GLOBAL | VARCHAR | Value of the COMPILATION_COMMENT option specified by CMake when building MariaDB, for example mariadb.org binary distribution. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| THREAD_POOL_PRIO_KICKUP_TIMER | NULL | 1.000 | COMPILE-TIME | 1.000 | GLOBAL | INT UNSIGNED | The number of milliseconds before a dequeued low-priority statement is moved to the high-priority queue | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| RELAY_LOG_BASENAME | NULL | | COMPILE-TIME | NULL | GLOBAL | VARCHAR | The full path of the relay log file names, excluding the extension. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| INNODB_DATA_HOME_DIR | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | The common part for InnoDB table spaces. | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| WSREP_CLUSTER_NAME | NULL | my_wsrep_cluster | COMPILE-TIME | my_wsrep_cluster | GLOBAL | VARCHAR | Name for the cluster | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| INNODB_READ_IO_THREADS | NULL | 4 | COMPILE-TIME | 4 | GLOBAL | INT UNSIGNED | Number of background read I/O threads in InnoDB. | 1 | 64 | 0 | NULL | NO | REQUIRED | NULL |
| LOG_BIN_INDEX | NULL | | COMPILE-TIME | NULL | GLOBAL | VARCHAR | File that holds the names for last binary log files. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| INNODB_WRITE_IO_THREADS | NULL | 4 | COMPILE-TIME | 4 | GLOBAL | INT UNSIGNED | Number of background write I/O threads in InnoDB. | 2 | 64 | 0 | NULL | NO | REQUIRED | NULL |
| NET_READ_TIMEOUT | 30 | 30 | COMPILE-TIME | 30 | SESSION | BIGINT UNSIGNED | Number of seconds to wait for more data from a connection before aborting the read | 1 | 31.536.000 | 1 | NULL | NO | REQUIRED | NULL |
| KEEP_FILES_ON_CREATE | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | Don't overwrite stale .MYD and .MYI even if no directory is specified | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| LOG_BIN_BASENAME | NULL | | COMPILE-TIME | NULL | GLOBAL | VARCHAR | The full path of the binary log file names, excluding the extension. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| INNODB_UNDO_DIRECTORY | NULL | ./ | COMPILE-TIME | | GLOBAL | VARCHAR | Directory where undo tablespace files live, this path can be absolute. | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| MAX_JOIN_SIZE | 9.223.372.036.854.775.807 | 9.223.372.036.854.775.807 | COMPILE-TIME | 9.223.372.036.854.775.807 | SESSION | BIGINT UNSIGNED | Joins that are probably going to read more than max_join_size records return an error | 1 | 9.223.372.036.854.775.807 | 1 | NULL | NO | REQUIRED | NULL |
| SKIP_PARALLEL_REPLICATION | OFF | NULL | COMPILE-TIME | OFF | SESSION ONLY | BOOLEAN | If set when a transaction is written to the binlog, parallel apply of that transaction will be avoided on a slave where slave_parallel_mode is not "aggressive". Can be used to avoid unnecessary rollback and retry for transactions that are likely to cause a conflict if replicated in parallel. | NULL | NULL | NULL | OFF,ON | NO | NULL | NULL |
| TCP_KEEPALIVE_INTERVAL | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | INT | The interval, in seconds, between when successive keep-alive packets are sent if no acknowledgement is received.If set to 0, system dependent default is used. | 0 | 2.147.483 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_FT_RESULT_CACHE_LIMIT | NULL | 2.000.000.000 | COMPILE-TIME | 2.000.000.000 | GLOBAL | BIGINT UNSIGNED | InnoDB Fulltext search query result cache limit in bytes | 1.000.000 | 9.223.372.036.854.775.807 | 0 | NULL | NO | REQUIRED | NULL |
| SLAVE_PARALLEL_MAX_QUEUED | NULL | 131.072 | COMPILE-TIME | 131.072 | GLOBAL | BIGINT UNSIGNED | Limit on how much memory SQL threads should use per parallel replication thread when reading ahead in the relay log looking for opportunities for parallel replication. Only used when --slave-parallel-threads > 0. | 0 | 2.147.483.647 | 1 | NULL | NO | REQUIRED | NULL |
| WSREP_SYNC_WAIT | 0 | 0 | COMPILE-TIME | 0 | SESSION | INT UNSIGNED | Ensure "synchronous" read view before executing an operation of the type specified by bitmask: 1 - READ(includes SELECT, SHOW and BEGIN/START TRANSACTION); 2 - UPDATE and DELETE; 4 - INSERT and REPLACE | 0 | 15 | 1 | NULL | NO | OPTIONAL | NULL |
| SECURE_AUTH | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Disallow authentication for accounts that have old (pre-4.1) passwords | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| WSREP_NODE_INCOMING_ADDRESS | NULL | AUTO | COMPILE-TIME | AUTO | GLOBAL | VARCHAR | Client connection address | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| WSREP_PATCH_VERSION | NULL | wsrep_26.22 | COMPILE-TIME | NULL | GLOBAL | VARCHAR | Wsrep patch version, for example wsrep_25.10. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| INNODB_ENCRYPTION_ROTATE_KEY_AGE | NULL | 1 | COMPILE-TIME | 1 | GLOBAL | INT UNSIGNED | Key rotation - re-encrypt in background all pages that were encrypted with a key that many (or more) versions behind. Value 0 indicates that key rotation is disabled. | 0 | 4.294.967.295 | 0 | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_EVENTS_STAGES_HISTORY_LONG_SIZE | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Number of rows in EVENTS_STAGES_HISTORY_LONG. Use 0 to disable, -1 for automated sizing. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| OPTIMIZER_TRACE | enabled=off | enabled=off | COMPILE-TIME | enabled=off | SESSION | FLAGSET | Controls tracing of the Optimizer: optimizer_trace=option=val[,option=val...], where option is one of {enabled} and val is one of {on, off, default} | NULL | NULL | NULL | enabled,default | NO | REQUIRED | NULL |
| REPLICATE_IGNORE_DB | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Tell the slave to restrict replication to updates of tables whose names do not appear in the comma-separated list. For statement-based replication, only the default database (that is, the one selected by USE) is considered, not any explicitly mentioned tables in the query. For row-based replication, the actual names of table(s) being updated are checked. | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| REQUIRE_SECURE_TRANSPORT | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | When this option is enabled, connections attempted using insecure transport will be rejected. Secure transports are SSL/TLS, Unix sockets or named pipes. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| IGNORE_BUILTIN_INNODB | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Disable initialization of builtin InnoDB plugin | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| INNODB_READ_AHEAD_THRESHOLD | NULL | 56 | COMPILE-TIME | 56 | GLOBAL | BIGINT UNSIGNED | Number of pages that must be accessed sequentially for InnoDB to trigger a readahead. | 0 | 64 | 0 | NULL | NO | REQUIRED | NULL |
| ANALYZE_SAMPLE_PERCENTAGE | 100,00 | 100,00 | COMPILE-TIME | 100,00 | SESSION | DOUBLE | Percentage of rows from the table ANALYZE TABLE will sample to collect table statistics. Set to 0 to let MariaDB decide what percentage of rows to sample. | 0 | 100 | NULL | NULL | NO | REQUIRED | NULL |
| INNODB_READ_ONLY | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Start InnoDB in read only mode (off by default) | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| INNODB_LOG_WRITE_AHEAD_SIZE | NULL | 512 | COMPILE-TIME | 512 | GLOBAL | INT UNSIGNED | Redo log write size to avoid read-on-write; must be a power of two | 512 | 4.096 | 1 | NULL | YES | REQUIRED | NULL |
| INNODB_IMMEDIATE_SCRUB_DATA_UNCOMPRESSED | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Enable scrubbing of data | NULL | NULL | NULL | OFF,ON | NO | REQUIRED | NULL |
| SYNC_RELAY_LOG_INFO | NULL | 10.000 | COMPILE-TIME | 10.000 | GLOBAL | INT UNSIGNED | Synchronously flush relay log info to disk after every #th transaction. Use 0 to disable synchronous flushing | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_MONITOR_RESET_ALL | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Reset all values for a monitor counter | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| SLAVE_MAX_STATEMENT_TIME | NULL | 0,00 | COMPILE-TIME | 0,00 | GLOBAL | DOUBLE | A query that has taken more than slave_max_statement_time seconds to run on the slave will be aborted. The argument will be treated as a decimal value with microsecond precision. A value of 0 (default) means no timeout | 0 | 31.536.000 | NULL | NULL | NO | REQUIRED | NULL |
| INNODB_OPTIMIZE_FULLTEXT_ONLY | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Only optimize the Fulltext index of the table | NULL | NULL | NULL | OFF,ON | NO | NONE | NULL |
| RPL_SEMI_SYNC_SLAVE_TRACE_LEVEL | NULL | 32 | COMPILE-TIME | 32 | GLOBAL | BIGINT UNSIGNED | The tracing level for semi-sync replication. | 0 | 9.223.372.036.854.775.807 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_STATS_METHOD | NULL | nulls_equal | COMPILE-TIME | nulls_equal | GLOBAL | ENUM | Specifies how InnoDB index statistics collection code should treat NULLs. Possible values are NULLS_EQUAL (default), NULLS_UNEQUAL and NULLS_IGNORED | NULL | NULL | NULL | nulls_equal,nulls_unequal,nulls_ignored | NO | REQUIRED | NULL |
| JOIN_CACHE_LEVEL | 2 | 2 | COMPILE-TIME | 2 | SESSION | BIGINT UNSIGNED | Controls what join operations can be executed with join buffers. Odd numbers are used for plain join buffers while even numbers are used for linked buffers | 0 | 8 | 1 | NULL | NO | REQUIRED | NULL |
| SSL_CIPHER | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | SSL cipher to use (implies --ssl) | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| WSREP_RESTART_SLAVE | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Should MariaDB slave be restarted automatically, when node joins back to cluster | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| LOG_SLOW_RATE_LIMIT | 1 | 1 | COMPILE-TIME | 1 | SESSION | BIGINT UNSIGNED | Write to slow log every #th slow query. Set to 1 to log everything. Increase it to reduce the size of the slow or the performance impact of slow logging | 1 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| WSREP_PROVIDER | NULL | none | COMPILE-TIME | none | GLOBAL | VARCHAR | Path to replication provider library | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| ARIA_SORT_BUFFER_SIZE | 268.434.432 | 268.434.432 | COMPILE-TIME | 268.434.432 | SESSION | BIGINT UNSIGNED | The buffer that is allocated when sorting the index when doing a REPAIR or when creating indexes with CREATE INDEX or ALTER TABLE. | 16.352 | 1.152.921.504.606.846.975 | 1 | NULL | NO | REQUIRED | NULL |
| GTID_BINLOG_POS | NULL | | COMPILE-TIME | NULL | GLOBAL | VARCHAR | Last GTID logged to the binary log, per replicationdomain | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| INNODB_PURGE_RSEG_TRUNCATE_FREQUENCY | NULL | 128 | COMPILE-TIME | 128 | GLOBAL | BIGINT UNSIGNED | Deprecated parameter with no effect | 1 | 128 | 0 | NULL | NO | NULL | NULL |
| EXTRA_MAX_CONNECTIONS | NULL | 1 | COMPILE-TIME | 1 | GLOBAL | BIGINT UNSIGNED | The number of connections on extra-port | 1 | 100.000 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_BUFFER_POOL_SIZE | NULL | 134.217.728 | COMPILE-TIME | 134.217.728 | GLOBAL | BIGINT UNSIGNED | The size of the memory buffer InnoDB uses to cache data and indexes of its tables. | 2.097.152 | 9.223.372.036.854.775.807 | 1.048.576 | NULL | NO | REQUIRED | NULL |
| SQL_SLAVE_SKIP_COUNTER | 0 | 0 | COMPILE-TIME | 0 | SESSION | BIGINT UNSIGNED | Skip the next N events from the master log | 0 | 4.294.967.295 | 1 | NULL | NO | NULL | NULL |
| INNODB_LOG_SPIN_WAIT_DELAY | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | INT UNSIGNED | Deprecated parameter with no effect | 0 | 6.000 | 0 | NULL | NO | OPTIONAL | NULL |
| SSL_CAPATH | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | CA directory (check OpenSSL docs, implies --ssl) | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| INNODB_BUFFER_POOL_LOAD_NOW | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Trigger an immediate load of the buffer pool from a file named @@innodb_buffer_pool_filename | NULL | NULL | NULL | OFF,ON | NO | REQUIRED | NULL |
| TABLE_OPEN_CACHE | NULL | 2.000 | COMPILE-TIME | 2.000 | GLOBAL | BIGINT UNSIGNED | The number of cached open tables | 10 | 1.048.576 | 1 | NULL | NO | REQUIRED | NULL |
| IGNORE_DB_DIRS | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Specifies a directory to add to the ignore list when collecting database names from the datadir. Put a blank argument to reset the list accumulated so far. | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| LOWER_CASE_TABLE_NAMES | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | INT UNSIGNED | If set to 1 table names are stored in lowercase on disk and table names will be case-insensitive. Should be set to 2 if you are using a case insensitive file system | 0 | 2 | 1 | NULL | YES | OPTIONAL | NULL |
| BINLOG_CHECKSUM | NULL | CRC32 | COMPILE-TIME | CRC32 | GLOBAL | ENUM | Type of BINLOG_CHECKSUM_ALG. Include checksum for log events in the binary log | NULL | NULL | NULL | NONE,CRC32 | NO | REQUIRED | NULL |
| LC_TIME_NAMES | en_US | en_US | COMPILE-TIME | en_US | SESSION | ENUM | Set the language used for the month names and the days of the week | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| INNODB_PAGE_SIZE | NULL | 16.384 | COMPILE-TIME | 16.384 | GLOBAL | BIGINT UNSIGNED | Page size to use for all InnoDB tablespaces. | 4.096 | 65.536 | 0 | NULL | YES | OPTIONAL | NULL |
| WSREP_DATA_HOME_DIR | NULL | /var/lib/mysql/ | COMPILE-TIME | /var/lib/mysql/ | GLOBAL | VARCHAR | home directory for wsrep provider | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| ARIA_ENCRYPT_TABLES | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Encrypt tables (only for tables with ROW_FORMAT=PAGE (default) and not FIXED/DYNAMIC) | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| FT_BOOLEAN_SYNTAX | NULL | + -><()~*:""&| | COMPILE-TIME | + -><()~*:""&| | GLOBAL | VARCHAR | List of operators for MATCH ... AGAINST ( ... IN BOOLEAN MODE) | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_EVENTS_STATEMENTS_HISTORY_LONG_SIZE | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Number of rows in EVENTS_STATEMENTS_HISTORY_LONG. Use 0 to disable, -1 for automated sizing. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| MAX_ERROR_COUNT | 64 | 64 | COMPILE-TIME | 64 | SESSION | BIGINT UNSIGNED | Max number of errors/warnings to store for a statement | 0 | 65.535 | 1 | NULL | NO | REQUIRED | NULL |
| RPL_SEMI_SYNC_MASTER_WAIT_POINT | NULL | AFTER_COMMIT | COMPILE-TIME | AFTER_COMMIT | GLOBAL | ENUM | Should transaction wait for semi-sync ack after having synced binlog, or after having committed in storage engine. | NULL | NULL | NULL | AFTER_SYNC,AFTER_COMMIT | NO | REQUIRED | NULL |
| BINLOG_COMMIT_WAIT_COUNT | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | If non-zero, binlog write will wait at most binlog_commit_wait_usec microseconds for at least this many commits to queue up for group commit to the binlog. This can reduce I/O on the binlog and provide increased opportunity for parallel apply on the slave, but too high a value will decrease commit throughput. | 0 | 9.223.372.036.854.775.807 | 1 | NULL | NO | REQUIRED | NULL |
| ARIA_CHECKPOINT_LOG_ACTIVITY | NULL | 1.048.576 | COMPILE-TIME | 1.048.576 | GLOBAL | BIGINT UNSIGNED | Number of bytes that the transaction log has to grow between checkpoints before a new checkpoint is written to the log. | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| THREAD_POOL_SIZE | NULL | 1 | AUTO | 8 | GLOBAL | INT UNSIGNED | Number of thread groups in the pool. This parameter is roughly equivalent to maximum number of concurrently executing threads (threads in a waiting state do not count as executing). | 1 | 100.000 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_FLUSH_LOG_AT_TRX_COMMIT | NULL | 1 | COMPILE-TIME | 1 | GLOBAL | BIGINT UNSIGNED | Controls the durability/speed trade-off for commits. Set to 0 (write and flush redo log to disk only once per second), 1 (flush to disk at each commit), 2 (write to log at commit but flush to disk only once per second) or 3 (flush to disk at prepare and at commit, slower and usually redundant). 1 and 3 guarantees that after a crash, committed transactions will not be lost and will be consistent with the binlog and other transactional engines. 2 can get inconsistent and lose transactions if there is a power failure or kernel crash but not if mysqld crashes. 0 has no guarantees in case of crash. 0 and 2 can be faster than 1 or 3. | 0 | 3 | 0 | NULL | NO | OPTIONAL | NULL |
| LOG_DISABLED_STATEMENTS | sp | sp | COMPILE-TIME | sp | SESSION | SET | Don't log certain types of statements to general log | NULL | NULL | NULL | slave,sp | NO | REQUIRED | NULL |
| WSREP_PROVIDER_OPTIONS | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Semicolon (;) separated list of wsrep options (see wsrep_provider_options documentation). | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| DIV_PRECISION_INCREMENT | 4 | 4 | COMPILE-TIME | 4 | SESSION | BIGINT UNSIGNED | Precision of the result of '/' operator will be increased on that value | 0 | 38 | 1 | NULL | NO | REQUIRED | NULL |
| MAX_PREPARED_STMT_COUNT | NULL | 16.382 | COMPILE-TIME | 16.382 | GLOBAL | INT UNSIGNED | Maximum number of prepared statements in the server | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| DATETIME_FORMAT | NULL | %Y-%m-%d %H:%i:%s | COMPILE-TIME | %Y-%m-%d %H:%i:%s | GLOBAL | VARCHAR | The DATETIME format (ignored) | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| WSREP_SST_DONOR | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | preferred donor node for the SST | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| REPORT_USER | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | The account user name of the slave to be reported to the master during slave registration | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| INNODB_COMPRESSION_PAD_PCT_MAX | NULL | 50 | COMPILE-TIME | 50 | GLOBAL | BIGINT UNSIGNED | Percentage of empty space on a data page that can be reserved to make the page compressible. | 0 | 75 | 0 | NULL | NO | OPTIONAL | NULL |
| ARIA_CHECKPOINT_INTERVAL | NULL | 30 | COMPILE-TIME | 30 | GLOBAL | BIGINT UNSIGNED | Interval between tries to do an automatic checkpoints. In seconds; 0 means 'no automatic checkpoints' which makes sense only for testing. | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| QUERY_CACHE_STRIP_COMMENTS | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | Strip all comments from a query before storing it in the query cache | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| HAVE_SSL | NULL | DISABLED | COMPILE-TIME | NULL | GLOBAL | VARCHAR | If the server supports secure connections, will be set to YES, otherwise will be set to NO. If set to DISABLED, the server was compiled with TLS support, but was not started with TLS support (see the mysqld options). See also have_openssl. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| SKIP_REPLICATION | OFF | NULL | COMPILE-TIME | OFF | SESSION ONLY | BOOLEAN | Changes are logged into the binary log with the @@skip_replication flag set. Such events will not be replicated by slaves that run with --replicate-events-marked-for-skip set different from its default of REPLICATE. See Selectively skipping replication of binlog events for more information. | NULL | NULL | NULL | OFF,ON | NO | NULL | NULL |
| GTID_STRICT_MODE | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Enforce strict seq_no ordering of events in the binary log. Slave stops with an error if it encounters an event that would cause it to generate an out-of-order binlog if executed. When ON the same server-id semisync-replicated transactions that duplicate existing ones in binlog are ignored without error and slave interruption. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| DEFAULT_TMP_STORAGE_ENGINE | | | COMPILE-TIME | NULL | SESSION | VARCHAR | The default storage engine for user-created temporary tables | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| SLAVE_TRANSACTION_RETRY_ERRORS | NULL | 1158,1159,1160,1161,1205,1213,1020,1429,2013,12701 | COMPILE-TIME | | GLOBAL | VARCHAR | Tells the slave thread to retry transaction for replication when a query event returns an error from the provided list. Deadlock error, elapsed lock wait timeout, net read error, net read timeout, net write error, net write timeout, connect error and 2 types of lost connection error are automatically added to this list | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| DELAYED_INSERT_TIMEOUT | NULL | 300 | COMPILE-TIME | 300 | GLOBAL | BIGINT UNSIGNED | How long a INSERT DELAYED thread should wait for INSERT statements before terminating | 1 | 31.536.000 | 1 | NULL | NO | REQUIRED | NULL |
| LOG_OUTPUT | NULL | FILE | COMPILE-TIME | FILE | GLOBAL | SET | How logs should be written | NULL | NULL | NULL | NONE,FILE,TABLE | NO | REQUIRED | NULL |
| QUERY_CACHE_TYPE | OFF | OFF | COMPILE-TIME | OFF | SESSION | ENUM | OFF = Don't cache or retrieve results. ON = Cache all results except SELECT SQL_NO_CACHE ... queries. DEMAND = Cache only SELECT SQL_CACHE ... queries | NULL | NULL | NULL | OFF,ON,DEMAND | NO | REQUIRED | NULL |
| INNODB_FT_AUX_TABLE | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | FTS internal auxiliary table to be checked | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| INNODB_CMP_PER_INDEX_ENABLED | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Enable INFORMATION_SCHEMA.innodb_cmp_per_index, may have negative impact on performance (off by default) | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| SYSTEM_TIME_ZONE | NULL | WIB | COMPILE-TIME | NULL | GLOBAL | VARCHAR | The server system time zone | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| INNODB_ONLINE_ALTER_LOG_MAX_SIZE | NULL | 134.217.728 | COMPILE-TIME | 134.217.728 | GLOBAL | BIGINT UNSIGNED | Maximum modification log file size for online index creation | 65.536 | 9.223.372.036.854.775.807 | 0 | NULL | NO | REQUIRED | NULL |
| SLAVE_TRANSACTION_RETRIES | NULL | 10 | COMPILE-TIME | 10 | GLOBAL | BIGINT UNSIGNED | Number of times the slave SQL thread will retry a transaction in case it failed with a deadlock, elapsed lock wait timeout or listed in slave_transaction_retry_errors, before giving up and stopping | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| UPDATABLE_VIEWS_WITH_LIMIT | YES | YES | COMPILE-TIME | YES | SESSION | ENUM | YES = Don't issue an error message (warning only) if a VIEW without presence of a key of the underlying table is used in queries with a LIMIT clause for updating. NO = Prohibit update of a VIEW, which does not contain a key of the underlying table and the query uses a LIMIT clause (usually get from GUI tools) | NULL | NULL | NULL | NO,YES | NO | REQUIRED | NULL |
| STORAGE_ENGINE | InnoDB | InnoDB | COMPILE-TIME | InnoDB | SESSION | VARCHAR | Alias for @@default_storage_engine. Deprecated | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| LOCAL_INFILE | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Enable LOAD DATA LOCAL INFILE | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| GTID_SEQ_NO | 0 | NULL | COMPILE-TIME | 0 | SESSION ONLY | BIGINT UNSIGNED | Internal server usage, for replication with global transaction id. When set, next event group logged to the binary log will use this sequence number, not generate a new one, thus allowing to preserve master's GTID in slave's binlog. | 0 | 9.223.372.036.854.775.807 | 1 | NULL | NO | NULL | NULL |
| RPL_SEMI_SYNC_SLAVE_ENABLED | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Enable semi-synchronous replication slave (disabled by default). | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| DATADIR | NULL | /var/lib/mysql/ | COMPILE-TIME | /var/lib/mysql/ | GLOBAL | VARCHAR | Path to the database root directory | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| RELAY_LOG_INDEX | NULL | | COMPILE-TIME | NULL | GLOBAL | VARCHAR | The location and name to use for the file that keeps a list of the last relay logs. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| WSREP_MAX_WS_SIZE | NULL | 2.147.483.647 | COMPILE-TIME | 2.147.483.647 | GLOBAL | BIGINT UNSIGNED | Max write set size (bytes) | 1.024 | 2.147.483.647 | 1 | NULL | NO | REQUIRED | NULL |
| SQL_QUOTE_SHOW_CREATE | ON | ON | COMPILE-TIME | ON | SESSION | BOOLEAN | If set to 1, the default, the server will quote identifiers for SHOW CREATE DATABASE, SHOW CREATE TABLE and SHOW CREATE VIEW statements. Quoting is disabled if set to 0. Enable to ensure replications works when identifiers require quoting. | NULL | NULL | NULL | OFF,ON | NO | NULL | NULL |
| INSERT_ID | 0 | NULL | COMPILE-TIME | 0 | SESSION ONLY | BIGINT UNSIGNED | The value to be used by the following INSERT or ALTER TABLE statement when inserting an AUTO_INCREMENT value | 0 | 9.223.372.036.854.775.807 | 1 | NULL | NO | NULL | NULL |
| WSREP_MODE | NULL | | COMPILE-TIME | | GLOBAL | SET | Set of WSREP features that are enabled. | NULL | NULL | NULL | STRICT_REPLICATION,BINLOG_ROW_FORMAT_ONLY,REQUIRED_PRIMARY_KEY,REPLICATE_MYISAM,REPLICATE_ARIA,DISALLOW_LOCAL_GTID,BF_ABORT_MARIABACKUP | NO | REQUIRED | NULL |
| OLD_PASSWORDS | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | Use old password encryption method (needed for 4.0 and older clients) | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| WSREP_CERTIFICATION_RULES | NULL | strict | COMPILE-TIME | strict | GLOBAL | ENUM | Certification rules to use in the cluster. Possible values are: "strict": stricter rules that could result in more certification failures. "optimized": relaxed rules that allow more concurrency and cause less certification failures. | NULL | NULL | NULL | strict,optimized | NO | REQUIRED | NULL |
| ROWID_MERGE_BUFF_SIZE | 8.388.608 | 8.388.608 | COMPILE-TIME | 8.388.608 | SESSION | BIGINT UNSIGNED | The size of the buffers used [NOT] IN evaluation via partial matching | 0 | 9.223.372.036.854.775.807 | 1 | NULL | NO | REQUIRED | NULL |
| PERFORMANCE_SCHEMA_MAX_TABLE_HANDLES | NULL | -1 | COMPILE-TIME | -1 | GLOBAL | BIGINT | Maximum number of opened instrumented tables. Use 0 to disable, -1 for automated sizing. | -1 | 1.048.576 | 1 | NULL | YES | REQUIRED | NULL |
| WSREP_CAUSAL_READS | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | Setting this variable is equivalent to setting wsrep_sync_wait READ flag | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| COLUMN_COMPRESSION_THRESHOLD | 100 | 100 | COMPILE-TIME | 100 | SESSION | INT UNSIGNED | Minimum column data length eligible for compression | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| LAST_GTID | | NULL | COMPILE-TIME | NULL | SESSION ONLY | VARCHAR | The GTID of the last commit (if binlogging was enabled), or the empty string if none. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| WSREP_SST_RECEIVE_ADDRESS | NULL | AUTO | COMPILE-TIME | AUTO | GLOBAL | VARCHAR | Address where node is waiting for SST contact | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| SLAVE_TYPE_CONVERSIONS | NULL | | COMPILE-TIME | | GLOBAL | SET | Set of slave type conversions that are enabled. If the variable is empty, no conversions are allowed and it is expected that the types match exactly | NULL | NULL | NULL | ALL_LOSSY,ALL_NON_LOSSY | NO | REQUIRED | NULL |
| MYISAM_SORT_BUFFER_SIZE | 134.216.704 | 134.216.704 | COMPILE-TIME | 134.216.704 | SESSION | BIGINT UNSIGNED | The buffer that is allocated when sorting the index when doing a REPAIR or when creating indexes with CREATE INDEX or ALTER TABLE | 4.096 | 1.152.921.504.606.846.975 | 1 | NULL | NO | REQUIRED | NULL |
| ARIA_PAGECACHE_DIVISION_LIMIT | NULL | 100 | COMPILE-TIME | 100 | GLOBAL | BIGINT UNSIGNED | The minimum percentage of warm blocks in key cache | 1 | 100 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_OLD_BLOCKS_PCT | NULL | 37 | COMPILE-TIME | 37 | GLOBAL | INT UNSIGNED | Percentage of the buffer pool to reserve for 'old' blocks. | 5 | 95 | 0 | NULL | NO | REQUIRED | NULL |
| IN_PREDICATE_CONVERSION_THRESHOLD | 1.000 | 1.000 | COMPILE-TIME | 1.000 | SESSION | INT UNSIGNED | The minimum number of scalar elements in the value list of IN predicate that triggers its conversion to IN subquery. Set to 0 to disable the conversion. | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| TIME_FORMAT | NULL | %H:%i:%s | COMPILE-TIME | %H:%i:%s | GLOBAL | VARCHAR | The TIME format (ignored) | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| INNODB_DEFRAGMENT_FILL_FACTOR_N_RECS | NULL | 20 | COMPILE-TIME | 20 | GLOBAL | INT UNSIGNED | How many records of space defragmentation should leave on the page. This variable, together with innodb_defragment_fill_factor, is introduced so defragmentation won't pack the page too full and cause page split on the next insert on every page. The variable indicating more defragmentation gain is the one effective. | 1 | 100 | 0 | NULL | NO | REQUIRED | NULL |
| SQL_LOG_OFF | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | If set to 1 (0 is the default), no logging to the general query log is done for the client. Only clients with the SUPER privilege can update this variable. | NULL | NULL | NULL | OFF,ON | NO | NULL | NULL |
| ARIA_PAGECACHE_AGE_THRESHOLD | NULL | 300 | COMPILE-TIME | 300 | GLOBAL | BIGINT UNSIGNED | This characterizes the number of hits a hot block has to be untouched until it is considered aged enough to be downgraded to a warm block. This specifies the percentage ratio of that number of hits to the total number of blocks in the page cache. | 100 | 9.223.372.036.854.775.807 | 100 | NULL | NO | REQUIRED | NULL |
| SLAVE_PARALLEL_MODE | NULL | optimistic | COMPILE-TIME | optimistic | GLOBAL | ENUM | Controls what transactions are applied in parallel when using --slave-parallel-threads. Possible values: "optimistic" tries to apply most transactional DML in parallel, and handles any conflicts with rollback and retry. "conservative" limits parallelism in an effort to avoid any conflicts. "aggressive" tries to maximise the parallelism, possibly at the cost of increased conflict rate. "minimal" only parallelizes the commit steps of transactions. "none" disables parallel apply completely. | NULL | NULL | NULL | none,minimal,conservative,optimistic,aggressive | NO | NULL | NULL |
| ARIA_RECOVER_OPTIONS | NULL | BACKUP,QUICK | COMPILE-TIME | BACKUP,QUICK | GLOBAL | SET | Specifies how corrupted tables should be automatically repaired | NULL | NULL | NULL | NORMAL,BACKUP,FORCE,QUICK,OFF | NO | OPTIONAL | NULL |
| SKIP_SHOW_DATABASE | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Don't allow 'SHOW DATABASE' commands | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| WSREP_TRX_FRAGMENT_UNIT | bytes | bytes | COMPILE-TIME | bytes | SESSION | ENUM | Unit for streaming replication transaction fragments' size: bytes, rows, statements | NULL | NULL | NULL | bytes,rows,statements | NO | REQUIRED | NULL |
| AUTOCOMMIT | ON | ON | COMPILE-TIME | ON | SESSION | BOOLEAN | If set to 1, the default, all queries are committed immediately. If set to 0, they are only committed upon a COMMIT statement, or rolled back with a ROLLBACK statement. If autocommit is set to 0, and then changed to 1, all open transactions are immediately committed. | NULL | NULL | NULL | OFF,ON | NO | NULL | NULL |
| SLAVE_SQL_VERIFY_CHECKSUM | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Force checksum verification of replication events after reading them from relay log. Note: Events are always checksum-verified by slave on receiving them from the network before writing them to the relay log | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| EQ_RANGE_INDEX_DIVE_LIMIT | 200 | 200 | COMPILE-TIME | 200 | SESSION | INT UNSIGNED | The optimizer will use existing index statistics instead of doing index dives for equality ranges if the number of equality ranges for the index is larger than or equal to this number. If set to 0, index dives are always used. | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| WARNING_COUNT | 0 | NULL | COMPILE-TIME | NULL | SESSION ONLY | BIGINT UNSIGNED | The number of errors, warnings, and notes that resulted from the last statement that generated messages | 0 | 9.223.372.036.854.775.807 | 1 | NULL | YES | NULL | NULL |
| MYISAM_STATS_METHOD | NULLS_UNEQUAL | NULLS_UNEQUAL | COMPILE-TIME | NULLS_UNEQUAL | SESSION | ENUM | Specifies how MyISAM index statistics collection code should treat NULLs. Possible values of name are NULLS_UNEQUAL (default behavior for 4.1 and later), NULLS_EQUAL (emulate 4.0 behavior), and NULLS_IGNORED | NULL | NULL | NULL | NULLS_UNEQUAL,NULLS_EQUAL,NULLS_IGNORED | NO | REQUIRED | NULL |
| INIT_FILE | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Read SQL commands from this file at startup | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| INNODB_COMPRESSION_LEVEL | NULL | 6 | COMPILE-TIME | 6 | GLOBAL | INT UNSIGNED | Compression level used for zlib compression. 0 is no compression, 1 is fastest, 9 is best compression and default is 6. | 0 | 9 | 0 | NULL | NO | REQUIRED | NULL |
| INTERACTIVE_TIMEOUT | 28.800 | 28.800 | COMPILE-TIME | 28.800 | SESSION | BIGINT UNSIGNED | The number of seconds the server waits for activity on an interactive connection before closing it | 1 | 31.536.000 | 1 | NULL | NO | REQUIRED | NULL |
| TRANSACTION_PREALLOC_SIZE | 4.096 | 4.096 | COMPILE-TIME | 4.096 | SESSION | BIGINT UNSIGNED | Persistent buffer for transactions to be stored in binary log | 1.024 | 134.217.728 | 1.024 | NULL | NO | REQUIRED | NULL |
| ERROR_COUNT | 0 | NULL | COMPILE-TIME | NULL | SESSION ONLY | BIGINT UNSIGNED | The number of errors that resulted from the last statement that generated messages | 0 | 9.223.372.036.854.775.807 | 1 | NULL | YES | NULL | NULL |
| VERSION_COMPILE_OS | NULL | debian-linux-gnu | COMPILE-TIME | NULL | GLOBAL | VARCHAR | Operating system that MariaDB was built on, for example debian-linux-gnu. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| SLAVE_LOAD_TMPDIR | NULL | /tmp | AUTO | | GLOBAL | VARCHAR | The location where the slave should put its temporary files when replicating a LOAD DATA INFILE command | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| FT_MIN_WORD_LEN | NULL | 4 | COMPILE-TIME | 4 | GLOBAL | BIGINT UNSIGNED | The minimum length of the word to be included in a FULLTEXT index. Note: FULLTEXT indexes must be rebuilt after changing this variable | 1 | 84 | 1 | NULL | YES | REQUIRED | NULL |
| LOG_TC_SIZE | NULL | 24.576 | AUTO | 24.576 | GLOBAL | BIGINT UNSIGNED | Size of transaction coordinator log. | 12.288 | 9.223.372.036.854.775.807 | 4.096 | NULL | YES | REQUIRED | NULL |
| WSREP_FORCED_BINLOG_FORMAT | NULL | NONE | COMPILE-TIME | NONE | GLOBAL | ENUM | binlog format to take effect over user's choice | NULL | NULL | NULL | MIXED,STATEMENT,ROW,NONE | NO | REQUIRED | NULL |
| SLAVE_RUN_TRIGGERS_FOR_RBR | NULL | NO | COMPILE-TIME | NO | GLOBAL | ENUM | Modes for how triggers in row-base replication on slave side will be executed. Legal values are NO (default), YES, LOGGING and ENFORCE. NO means that trigger for RBR will not be running on slave. YES and LOGGING means that triggers will be running on slave, if there was not triggers running on the master for the statement. LOGGING also means results of that the executed triggers work will be written to the binlog. ENFORCE means that triggers will always be run on the slave, even if there are triggers on the master. ENFORCE implies LOGGING. | NULL | NULL | NULL | NO,YES,LOGGING,ENFORCE | NO | REQUIRED | NULL |
| MAX_SP_RECURSION_DEPTH | 0 | 0 | COMPILE-TIME | 0 | SESSION | BIGINT UNSIGNED | Maximum stored procedure recursion depth | 0 | 255 | 1 | NULL | NO | OPTIONAL | NULL |
| MAX_WRITE_LOCK_COUNT | NULL | 4.294.967.295 | COMPILE-TIME | 4.294.967.295 | GLOBAL | BIGINT UNSIGNED | After this many write locks, allow some read locks to run in between | 1 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| IDLE_READONLY_TRANSACTION_TIMEOUT | 0 | 0 | COMPILE-TIME | 0 | SESSION | INT UNSIGNED | The number of seconds the server waits for read-only idle transaction | 0 | 31.536.000 | 1 | NULL | NO | REQUIRED | NULL |
| WSREP_SST_AUTH | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Authentication for SST connection | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| REPLICATE_EVENTS_MARKED_FOR_SKIP | NULL | REPLICATE | COMPILE-TIME | REPLICATE | GLOBAL | ENUM | Whether the slave should replicate events that were created with @@skip_replication=1 on the master. Default REPLICATE (no events are skipped). Other values are FILTER_ON_SLAVE (events will be sent by the master but ignored by the slave) and FILTER_ON_MASTER (events marked with @@skip_replication=1 will be filtered on the master and never be sent to the slave). | NULL | NULL | NULL | REPLICATE,FILTER_ON_SLAVE,FILTER_ON_MASTER | NO | REQUIRED | NULL |
| SLAVE_SKIP_ERRORS | NULL | OFF | COMPILE-TIME | | GLOBAL | VARCHAR | Tells the slave thread to continue replication when a query event returns an error from the provided list | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| KEY_CACHE_BLOCK_SIZE | NULL | 1.024 | COMPILE-TIME | 1.024 | GLOBAL | BIGINT UNSIGNED | The default size of key cache blocks | 512 | 16.384 | 512 | NULL | NO | REQUIRED | NULL |
| ARIA_LOG_DIR_PATH | NULL | /var/lib/mysql/ | COMPILE-TIME | /var/lib/mysql/ | GLOBAL | VARCHAR | Path to the directory where to store transactional log | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| WSREP_OSU_METHOD | TOI | TOI | COMPILE-TIME | TOI | SESSION | ENUM | Method for Online Schema Upgrade | NULL | NULL | NULL | TOI,RSU | NO | OPTIONAL | NULL |
| INNODB_FLUSH_METHOD | NULL | O_DIRECT | COMPILE-TIME | O_DIRECT | GLOBAL | ENUM | With which method to flush data. | NULL | NULL | NULL | fsync,O_DSYNC,littlesync,nosync,O_DIRECT,O_DIRECT_NO_FSYNC | YES | REQUIRED | NULL |
| WSREP_CERTIFY_NONPK | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Certify tables with no primary key | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_BUFFER_POOL_SIZE_MAX | NULL | 134.217.728 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | Maximum innodb_buffer_pool_size | 0 | 9.223.372.036.854.775.807 | 8.388.608 | NULL | YES | REQUIRED | NULL |
| TCP_NODELAY | ON | ON | COMPILE-TIME | ON | SESSION | BOOLEAN | Set option TCP_NODELAY (disable Nagle's algorithm) on socket | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| MYISAM_USE_MMAP | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Use memory mapping for reading and writing MyISAM tables | NULL | NULL | NULL | OFF,ON | NO | NONE | NULL |
| ENCRYPT_TMP_DISK_TABLES | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Encrypt temporary on-disk tables (created as part of query execution) | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| INNODB_BUFFER_POOL_LOAD_AT_STARTUP | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Load the buffer pool from a file named @@innodb_buffer_pool_filename | NULL | NULL | NULL | OFF,ON | YES | REQUIRED | NULL |
| SLAVE_DOMAIN_PARALLEL_THREADS | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | Maximum number of parallel threads to use on slave for events in a single replication domain. When using multiple domains, this can be used to limit a single domain from grabbing all threads and thus stalling other domains. The default of 0 means to allow a domain to grab as many threads as it wants, up to the value of slave_parallel_threads. | 0 | 16.383 | 1 | NULL | NO | REQUIRED | NULL |
| VERSION | NULL | 10.11.14-MariaDB-0ubuntu0.24.04.1 | COMPILE-TIME | NULL | GLOBAL | VARCHAR | Server version number. It may also include a suffix with configuration or build information. -debug indicates debugging support was enabled on the server, and -log indicates at least one of the binary log, general log or slow query log are enabled, for example 10.1.1-MariaDB-mariadb1precise-log. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| INNODB_SNAPSHOT_ISOLATION | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | Use snapshot isolation (write-write conflict detection). | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| SKIP_EXTERNAL_LOCKING | NULL | ON | COMPILE-TIME | NULL | GLOBAL | BOOLEAN | Don't use system (external) locking | NULL | NULL | NULL | OFF,ON | YES | NULL | NULL |
| INNODB_FT_ENABLE_DIAG_PRINT | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Whether to enable additional FTS diagnostic printout | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| LOG_SLAVE_UPDATES | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Tells the slave to log the updates from the slave thread to the binary log. You will need to turn it on if you plan to daisy-chain the slaves. | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| HAVE_SYMLINK | NULL | YES | COMPILE-TIME | NULL | GLOBAL | VARCHAR | If symbolic link support is enabled, will be set to YES, otherwise will be set to NO. Required for the INDEX DIRECTORY and DATA DIRECTORY table options (see CREATE TABLE) and Windows symlink support. Will be set to DISABLED if the server is started with the --skip-symbolic-links option. | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| DEADLOCK_TIMEOUT_LONG | 50.000.000 | 50.000.000 | COMPILE-TIME | 50.000.000 | SESSION | BIGINT UNSIGNED | Long timeout for the two-step deadlock detection (in microseconds) | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| WSREP_GTID_MODE | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Automatically update the (joiner) node's wsrep_gtid_domain_id value with that of donor's (received during state transfer) and use it in place of gtid_domain_id for all galera transactions. When OFF (default), wsrep_gtid_domain_id is simply ignored (backward compatibility). | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| PROTOCOL_VERSION | NULL | 10 | COMPILE-TIME | NULL | GLOBAL | INT UNSIGNED | The version of the client/server protocol used by the MariaDB server | 0 | 4.294.967.295 | 1 | NULL | YES | NULL | NULL |
| INNODB_FLUSH_NEIGHBORS | NULL | 1 | COMPILE-TIME | 1 | GLOBAL | BIGINT UNSIGNED | Set to 0 (don't flush neighbors from buffer pool), 1 (flush contiguous neighbors from buffer pool) or 2 (flush neighbors from buffer pool), when flushing a block | 0 | 2 | 0 | NULL | NO | OPTIONAL | NULL |
| DEBUG_NO_THREAD_ALARM | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Disable system thread alarm calls. Disabling it may be useful in debugging or testing, never do it in production | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| SECURE_TIMESTAMP | NULL | NO | COMPILE-TIME | NO | GLOBAL | ENUM | Restricts direct setting of a session timestamp. Possible levels are: YES - timestamp cannot deviate from the system clock, REPLICATION - replication thread can adjust timestamp to match the master's, SUPER - a user with this privilege and a replication thread can adjust timestamp, NO - historical behavior, anyone can modify session timestamp | NULL | NULL | NULL | NO,SUPER,REPLICATION,YES | YES | REQUIRED | NULL |
| ENFORCE_STORAGE_ENGINE | | | COMPILE-TIME | NULL | SESSION | VARCHAR | Force the use of a storage engine for new tables | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| SYNC_MASTER_INFO | NULL | 10.000 | COMPILE-TIME | 10.000 | GLOBAL | INT UNSIGNED | Synchronously flush master info to disk after every #th event. Use 0 to disable synchronous flushing | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| SKIP_NAME_RESOLVE | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Don't resolve hostnames. All hostnames are IP's or 'localhost'. | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| INNODB_DEADLOCK_DETECT | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Enable/disable InnoDB deadlock detector (default ON). if set to OFF, deadlock detection is skipped, and we rely on innodb_lock_wait_timeout in case of deadlock. | NULL | NULL | NULL | OFF,ON | NO | NONE | NULL |
| INNODB_STATS_ON_METADATA | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Enable statistics gathering for metadata commands such as SHOW TABLE STATUS for tables that use transient statistics (off by default) | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| WSREP_RECOVER | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Recover database state after crash and exit | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| READ_BINLOG_SPEED_LIMIT | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | Maximum speed(KB/s) to read binlog from master (0 = no limit) | 0 | 9.223.372.036.854.775.807 | 1 | NULL | NO | REQUIRED | NULL |
| GTID_CLEANUP_BATCH_SIZE | NULL | 64 | COMPILE-TIME | 64 | GLOBAL | INT UNSIGNED | Normally does not need tuning. How many old rows must accumulate in the mysql.gtid_slave_pos table before a background job will be run to delete them. Can be increased to reduce number of commits if using many different engines with --gtid_pos_auto_engines, or to reduce CPU overhead if using a huge number of different gtid_domain_ids. Can be decreased to reduce number of old rows in the table. | 0 | 2.147.483.647 | 1 | NULL | NO | REQUIRED | NULL |
| WSREP_STATUS_FILE | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | wsrep status output filename | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| UNIQUE_CHECKS | ON | ON | COMPILE-TIME | ON | SESSION | BOOLEAN | If set to 1, the default, secondary indexes in InnoDB tables are performed. If set to 0, storage engines can (but are not required to) assume that duplicate keys are not present in input data. Set to 0 to speed up imports of large tables to InnoDB. The storage engine will still issue a duplicate key error if it detects one, even if set to 0. | NULL | NULL | NULL | OFF,ON | NO | NULL | NULL |
| INNODB_LOG_GROUP_HOME_DIR | NULL | ./ | COMPILE-TIME | | GLOBAL | VARCHAR | Path to ib_logfile0 | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| MAX_SEEKS_FOR_KEY | 4.294.967.295 | 4.294.967.295 | COMPILE-TIME | 4.294.967.295 | SESSION | BIGINT UNSIGNED | Limit assumed max number of seeks when looking up rows based on a key | 1 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_DEFRAGMENT_N_PAGES | NULL | 7 | COMPILE-TIME | 7 | GLOBAL | INT UNSIGNED | Number of pages considered at once when merging multiple pages to defragment | 2 | 32 | 0 | NULL | NO | REQUIRED | NULL |
| KEY_CACHE_SEGMENTS | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | The number of segments in a key cache | 0 | 64 | 1 | NULL | NO | REQUIRED | NULL |
| LOG_SLOW_FILTER | admin,filesort,filesort_on_disk,filesort_priority_queue,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk | admin,filesort,filesort_on_disk,filesort_priority_queue,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk | COMPILE-TIME | admin,filesort,filesort_on_disk,filesort_priority_queue,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk | SESSION | SET | Log only certain types of queries to the slow log. If variable empty all kind of queries are logged. All types are bound by slow_query_time, except 'not_using_index' which is always logged if enabled | NULL | NULL | NULL | admin,filesort,filesort_on_disk,filesort_priority_queue,full_join,full_scan,not_using_index,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk | NO | REQUIRED | NULL |
| QUERY_CACHE_MIN_RES_UNIT | NULL | 4.096 | COMPILE-TIME | 4.096 | GLOBAL | BIGINT UNSIGNED | The minimum size for blocks allocated by the query cache | 0 | 4.294.967.295 | 8 | NULL | NO | REQUIRED | NULL |
| INNODB_OPEN_FILES | NULL | 2.000 | COMPILE-TIME | 0 | GLOBAL | BIGINT UNSIGNED | How many files at the maximum InnoDB keeps open at the same time. | 0 | 9.223.372.036.854.775.807 | 0 | NULL | YES | REQUIRED | NULL |
| SSL_KEY | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | X509 key in PEM format (implies --ssl) | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| INNODB_LOG_FILE_SIZE | NULL | 100.663.296 | COMPILE-TIME | 100.663.296 | GLOBAL | BIGINT UNSIGNED | Redo log size in bytes. | 4.194.304 | 9.223.372.036.854.775.807 | 4.096 | NULL | NO | REQUIRED | NULL |
| DEFAULT_STORAGE_ENGINE | InnoDB | InnoDB | COMPILE-TIME | InnoDB | SESSION | VARCHAR | The default storage engine for new tables | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| VERSION_SOURCE_REVISION | NULL | 053f9bcb5b147bf00edb99e1310bae9125b7f125 | COMPILE-TIME | NULL | GLOBAL | VARCHAR | Source control revision id for MariaDB source code | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| SQL_WARNINGS | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | If set to 1, single-row INSERTs will produce a string containing warning information if a warning occurs. | NULL | NULL | NULL | OFF,ON | NO | NULL | NULL |
| OPTIMIZER_MAX_SEL_ARG_WEIGHT | 32.000 | 32.000 | COMPILE-TIME | 32.000 | SESSION | BIGINT UNSIGNED | The maximum weight of the SEL_ARG graph. Set to 0 for no limit | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| LARGE_PAGE_SIZE | NULL | 0 | COMPILE-TIME | NULL | GLOBAL | INT UNSIGNED | Previously showed the size of large memory pages, unused since multiple page size support was added | 0 | 4.294.967.295 | 1 | NULL | YES | NULL | NULL |
| ARIA_PAGECACHE_FILE_HASH_SIZE | NULL | 512 | COMPILE-TIME | 512 | GLOBAL | BIGINT UNSIGNED | Number of hash buckets for open and changed files. If you have a lot of Aria files open you should increase this for faster flush of changes. A good value is probably 1/10 of number of possible open Aria files. | 128 | 16.384 | 1 | NULL | YES | REQUIRED | NULL |
| READ_RND_BUFFER_SIZE | 262.144 | 262.144 | COMPILE-TIME | 262.144 | SESSION | BIGINT UNSIGNED | When reading rows in sorted order after a sort, the rows are read through this buffer to avoid a disk seeks | 1 | 2.147.483.647 | 1 | NULL | NO | REQUIRED | NULL |
| WSREP_NODE_NAME | NULL | ayam-mrothol-dev-ubuntu-s-1vcpu-512mb-10gb-sgp1 | COMPILE-TIME | ayam-mrothol-dev-ubuntu-s-1vcpu-512mb-10gb-sgp1 | GLOBAL | VARCHAR | Name of this node. This name can be used in wsrep_sst_donor as a preferred donor. Note that multiple nodes in a cluster can have the same name. | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| IN_TRANSACTION | 0 | NULL | COMPILE-TIME | NULL | SESSION ONLY | BIGINT UNSIGNED | Whether there is an active transaction | 0 | 1 | 1 | NULL | YES | NULL | NULL |
| REPLICATE_IGNORE_TABLE | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Tells the slave thread not to replicate any statement that updates the specified table, even if any other tables might be updated by the same statement. | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| ARIA_LOG_FILE_SIZE | NULL | 1.073.741.824 | COMPILE-TIME | 1.073.741.824 | GLOBAL | BIGINT UNSIGNED | Limit for transaction log size | 8.388.608 | 4.294.967.295 | 8.192 | NULL | NO | REQUIRED | NULL |
| INNODB_NUMA_INTERLEAVE | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Use NUMA interleave memory policy to allocate InnoDB buffer pool. | NULL | NULL | NULL | OFF,ON | YES | NONE | NULL |
| OPTIMIZER_SEARCH_DEPTH | 62 | 62 | COMPILE-TIME | 62 | SESSION | BIGINT UNSIGNED | Maximum depth of search performed by the query optimizer. Values larger than the number of relations in a query result in better query plans, but take longer to compile a query. Values smaller than the number of tables in a relation result in faster optimization, but may produce very bad query plans. If set to 0, the system will automatically pick a reasonable value. | 0 | 62 | 1 | NULL | NO | REQUIRED | NULL |
| INNODB_CHECKSUM_ALGORITHM | NULL | full_crc32 | COMPILE-TIME | full_crc32 | GLOBAL | ENUM | The algorithm InnoDB uses for page checksumming. Possible values are FULL_CRC32 for new files, always use CRC-32C; for old, see CRC32 below; STRICT_FULL_CRC32 for new files, always use CRC-32C; for old, see STRICT_CRC32 below; CRC32 write crc32, allow previously used algorithms to match when reading; STRICT_CRC32 write crc32, do not allow other algorithms to match when reading; New files created with full_crc32 are readable by MariaDB 10.4.3+ | NULL | NULL | NULL | crc32,strict_crc32,full_crc32,strict_full_crc32 | NO | REQUIRED | NULL |
| TCP_KEEPALIVE_TIME | NULL | 0 | COMPILE-TIME | 0 | GLOBAL | INT | Timeout, in seconds, with no activity until the first TCP keep-alive packet is sent.If set to 0, system dependent default is used. | 0 | 2.147.483 | 1 | NULL | NO | REQUIRED | NULL |
| ARIA_LOG_PURGE_TYPE | NULL | immediate | COMPILE-TIME | immediate | GLOBAL | ENUM | Specifies how Aria transactional log will be purged | NULL | NULL | NULL | immediate,external,at_flush | NO | REQUIRED | NULL |
| READ_ONLY | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Make all non-temporary tables read-only, with the exception for replication (slave) threads and users with the 'READ ONLY ADMIN' privilege | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| MYSQL56_TEMPORAL_FORMAT | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Use MySQL-5.6 (instead of MariaDB-5.3) format for TIME, DATETIME, TIMESTAMP columns. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| REPLICATE_WILD_IGNORE_TABLE | NULL | | COMPILE-TIME | | GLOBAL | VARCHAR | Tells the slave thread to not replicate to the tables that match the given wildcard pattern. | NULL | NULL | NULL | NULL | NO | NULL | NULL |
| ARIA_BLOCK_SIZE | NULL | 8.192 | COMPILE-TIME | 8.192 | GLOBAL | BIGINT UNSIGNED | Block size to be used for Aria index pages. | 4.096 | 32.768 | 1.024 | NULL | YES | REQUIRED | NULL |
| INNODB_DATA_FILE_PATH | NULL | ibdata1:12M:autoextend | COMPILE-TIME | ibdata1:12M:autoextend | GLOBAL | VARCHAR | Path to individual files and their sizes. | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| WSREP_SR_STORE | NULL | table | COMPILE-TIME | table | GLOBAL | ENUM | Storage for streaming replication fragments | NULL | NULL | NULL | none,table | YES | REQUIRED | NULL |
| DEADLOCK_TIMEOUT_SHORT | 10.000 | 10.000 | COMPILE-TIME | 10.000 | SESSION | BIGINT UNSIGNED | Short timeout for the two-step deadlock detection (in microseconds) | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| SQL_IF_EXISTS | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | If set to 1 adds an implicate IF EXISTS to ALTER, RENAME and DROP of TABLES, VIEWS, FUNCTIONS and PACKAGES | NULL | NULL | NULL | OFF,ON | NO | NULL | NULL |
| WSREP_DIRTY_READS | OFF | OFF | COMPILE-TIME | OFF | SESSION | BOOLEAN | Allow reads even when the node is not in the primary component. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| ARIA_GROUP_COMMIT | NULL | none | COMPILE-TIME | none | GLOBAL | ENUM | Specifies Aria group commit mode. Possible values are "none" (no group commit), "hard" (with waiting to actual commit), "soft" (no wait for commit (DANGEROUS!!!)) | NULL | NULL | NULL | none,hard,soft | NO | REQUIRED | NULL |
| INNODB_DEFRAGMENT_FILL_FACTOR | NULL | 0,90 | COMPILE-TIME | 0,90 | GLOBAL | DOUBLE | A number between [0.7, 1] that tells defragmentation how full it should fill a page. Default is 0.9. Number below 0.7 won't make much sense.This variable, together with innodb_defragment_fill_factor_n_recs, is introduced so defragmentation won't pack the page too full and cause page split on the next insert on every page. The variable indicating more defragmentation gain is the one effective. | 0,70 | 1 | NULL | NULL | NO | REQUIRED | NULL |
| MAX_ALLOWED_PACKET | 16.777.216 | 16.777.216 | COMPILE-TIME | 16.777.216 | SESSION | BIGINT UNSIGNED | Max packet length to send to or receive from the server | 1.024 | 1.073.741.824 | 1.024 | NULL | NO | REQUIRED | NULL |
| ALTER_ALGORITHM | DEFAULT | DEFAULT | COMPILE-TIME | DEFAULT | SESSION | ENUM | Specify the alter table algorithm | NULL | NULL | NULL | DEFAULT,COPY,INPLACE,NOCOPY,INSTANT | NO | OPTIONAL | NULL |
| USERSTAT | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Enables statistics gathering for USER_STATISTICS, CLIENT_STATISTICS, INDEX_STATISTICS and TABLE_STATISTICS tables in the INFORMATION_SCHEMA | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| SQL_LOG_BIN | ON | ON | COMPILE-TIME | ON | SESSION | BOOLEAN | If set to 0 (1 is the default), no logging to the binary log is done for the client. Only clients with the SUPER privilege can update this variable. Can have unintended consequences if set globally, see SET SQL_LOG_BIN. Starting MariaDB 10.1.7, this variable does not affect the replication of events in a Galera cluster. | NULL | NULL | NULL | OFF,ON | NO | NULL | NULL |
| SESSION_TRACK_SYSTEM_VARIABLES | autocommit,character_set_client,character_set_connection,character_set_results,time_zone | autocommit,character_set_client,character_set_connection,character_set_results,time_zone | COMPILE-TIME | autocommit,character_set_client,character_set_connection,character_set_results,time_zone | SESSION | VARCHAR | Track changes in registered system variables. | NULL | NULL | NULL | NULL | NO | REQUIRED | NULL |
| SERVER_UID | NULL | QcZPUixbD6gFEmDGoJmlmMbCQdc= | COMPILE-TIME | NULL | GLOBAL | VARCHAR | Automatically calculated server unique id hash | NULL | NULL | NULL | NULL | YES | NULL | NULL |
| ARIA_SYNC_LOG_DIR | NULL | NEWFILE | COMPILE-TIME | NEWFILE | GLOBAL | ENUM | Controls syncing directory after log file growth and new file creation | NULL | NULL | NULL | NEVER,NEWFILE,ALWAYS | NO | REQUIRED | NULL |
| INNODB_PURGE_BATCH_SIZE | NULL | 127 | COMPILE-TIME | 127 | GLOBAL | BIGINT UNSIGNED | Number of UNDO log pages to purge in one batch from the history list. | 1 | 5.000 | 0 | NULL | NO | OPTIONAL | NULL |
| INNODB_FORCE_PRIMARY_KEY | NULL | OFF | COMPILE-TIME | OFF | GLOBAL | BOOLEAN | Do not allow creating a table without primary key (off by default) | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| TMPDIR | NULL | /tmp | COMPILE-TIME | | GLOBAL | VARCHAR | Path for temporary files. Several paths may be specified, separated by a colon (:), in this case they are used in a round-robin fashion | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| RELAY_LOG_PURGE | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | if disabled - do not purge relay logs. if enabled - purge them as soon as they are no more needed. | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |
| AUTO_INCREMENT_INCREMENT | 1 | 1 | COMPILE-TIME | 1 | SESSION | BIGINT UNSIGNED | Auto-increment columns are incremented by this | 1 | 65.535 | 1 | NULL | NO | OPTIONAL | NULL |
| INNODB_FT_TOTAL_CACHE_SIZE | NULL | 640.000.000 | COMPILE-TIME | 640.000.000 | GLOBAL | BIGINT UNSIGNED | Total memory allocated for InnoDB Fulltext Search cache | 32.000.000 | 1.099.511.627.776 | 0 | NULL | NO | REQUIRED | NULL |
| REPLICATE_ANNOTATE_ROW_EVENTS | NULL | ON | COMPILE-TIME | ON | GLOBAL | BOOLEAN | Tells the slave to write annotate rows events received from the master to its own binary log. Ignored if log_slave_updates is not set | NULL | NULL | NULL | OFF,ON | YES | OPTIONAL | NULL |
| OPTIMIZER_MAX_SEL_ARGS | 16.000 | 16.000 | COMPILE-TIME | 16.000 | SESSION | BIGINT UNSIGNED | The maximum number of SEL_ARG objects created when optimizing a range. If more objects would be needed, the range will not be used by the optimizer. | 0 | 4.294.967.295 | 1 | NULL | NO | REQUIRED | NULL |
| TABLE_OPEN_CACHE_INSTANCES | NULL | 8 | COMPILE-TIME | 8 | GLOBAL | INT UNSIGNED | Maximum number of table cache instances | 1 | 64 | 1 | NULL | YES | REQUIRED | NULL |
| IDLE_TRANSACTION_TIMEOUT | 0 | 0 | COMPILE-TIME | 0 | SESSION | INT UNSIGNED | The number of seconds the server waits for idle transaction | 0 | 31.536.000 | 1 | NULL | NO | REQUIRED | NULL |
| RELAY_LOG_INFO_FILE | NULL | relay-log.info | COMPILE-TIME | | GLOBAL | VARCHAR | The location and name of the file that remembers where the SQL replication thread is in the relay logs. | NULL | NULL | NULL | NULL | YES | REQUIRED | NULL |
| BINLOG_ANNOTATE_ROW_EVENTS | ON | ON | COMPILE-TIME | ON | SESSION | BOOLEAN | Tells the master to annotate RBR events with the statement that caused these events | NULL | NULL | NULL | OFF,ON | NO | OPTIONAL | NULL |