mysqld Options

Contents

  1. Compatibility options
    1. -a, --ansi
    2. --new
    3. --old
    4. --old-alter-table
    5. --old-mode
    6. --old-passwords
    7. --old-style-user-limits
    8. --safe-mode
    9. --skip-new
    10. Compatibility System Variables
  2. Replication and binary logging options
    1. --abort-slave-event-count
    2. --auto-increment-increment
    3. --auto-increment-offset
    4. --binlog-annotate-row-events
    5. --binlog-cache-size
    6. --binlog-checksum
    7. --binlog-commit-wait-count
    8. --binlog-commit-wait-usec
    9. --binlog-direct-non-transactional-updates
    10. --binlog-do-db
    11. --binlog-format
    12. --binlog-ignore-db
    13. --binlog-row-event-max-size
    14. --binlog-optimize-thread-scheduling
    15. --binlog-row-image
    16. --binlog-stmt-cache-size
    17. --default-master-connection
    18. --disconnect-slave-event-count
    19. --gtid-ignore-duplicates
    20. --init-rpl-role
    21. --init-slave
    22. --log-basename
    23. --log-bin
    24. --log-bin-index
    25. --log-bin-trust-function-creators
    26. --log-bin-trust-routine-creators
    27. --log-slave-updates
    28. --master-host
    29. --master-info-file
    30. --master-password
    31. --master-port
    32. --master-retry-count
    33. --master-ssl
    34. --master-ssl-ca
    35. --master-ssl-capath
    36. --master-ssl-cert
    37. --master-ssl-cipher
    38. --master-ssl-key
    39. --master-user
    40. --master-verify-checksum
    41. --max-binlog-cache-size
    42. --max-binlog-dump-events
    43. --max-binlog-size
    44. --max-binlog-stmt-cache-size
    45. --max-relay-log-size
    46. --relay-log
    47. --relay-log-index
    48. --relay-log-info-file
    49. --relay-log-purge
    50. --relay-log-recovery
    51. --relay-log-space-limit
    52. --replicate-annotate-row-events
    53. --replicate-do-db
    54. --replicate-do-table
    55. --replicate-events-marked-for-skip
    56. --replicate-ignore-db
    57. --replicate-ignore-table
    58. --replicate-rewrite-db
    59. --replicate-same-server-id
    60. --replicate-wild-do-table
    61. --replicate-wild-ignore-table
    62. --report-host
    63. --report-password
    64. --report-port
    65. --report-user
    66. --rpl-recovery-rank
    67. --server-id
    68. --slave-ddl-exec-mode
    69. --slave-compressed-protocol
    70. --slave-domain-parallel-threads
    71. --slave-exec-mode
    72. --slave-load-tmpdir
    73. --slave-max-allowed-packet
    74. --slave-net-timeout
    75. --slave-parallel-threads
    76. --slave-parallel-max-queued
    77. --slave-run-triggers-for-rbr
    78. --slave-skip-errors
    79. --slave-sql-verify-checksum
    80. --slave-transaction-retries
    81. --slave-type-conversions
    82. --sporadic-binlog-dump-fail
    83. --sync-binlog
    84. --sync-master-info
    85. --sync-relay-log
    86. --sync-relay-log-info
    87. --sysdate-is-now
    88. Replication and binary logging system variables
  3. Optimizer options
    1. --big-tables
    2. --bulk_insert_buffer_size
    3. --expensive-subquery-limit
    4. --join-buffer-size
    5. --join-buffer-space-limit
    6. --join-cache-level
    7. --max-heap-table-size
    8. --max-join-size
    9. --max-seeks-for-key
    10. --max-sort-length
    11. --mrr-buffer-size
    12. --optimizer-prune-level
    13. --optimizer-search-depth
    14. --optimizer-selectivity-sampling-limit
    15. --optimizer-switch
    16. --optimizer-use-condition-selectivity
    17. --query-alloc-block-size
    18. --query-prealloc-size
    19. --range-alloc-block-size
    20. --read-buffer-size
    21. --record-buffer
    22. --rowid-merge-buff-size
    23. --table-cache
    24. --table-definition-cache
    25. --table-open-cache
    26. --tmp-table-size
    27. --use-stat-tables
    28. Optimizer system variables
  4. MyISAM options
    1. --concurrent-insert
    2. --delay-key-write-for-all-tables
    3. --delayed-insert-limit
    4. --delayed-insert-timeout
    5. --delayed-queue-size
    6. --external-locking
    7. --keep-files-on-create
    8. --key-buffer-size
    9. --key-cache-age-threshold
    10. --key-cache-block-size
    11. --key-cache-division-limit
    12. --key-cache-file-hash-size
    13. --key-cache-segments
    14. --log-isam
    15. --myisam-block-size
    16. --myisam-data-pointer-size
    17. --myisam-max-sort-file-size
    18. --myisam-mmap-size
    19. --myisam-recover-options
    20. --myisam-repair-threads
    21. --myisam-sort-buffer-size
    22. --myisam-stats-method
    23. --myisam-use-mmap
    24. MyISAM options
  5. InnoDB options
    1. --ignore-builtin-innodb
    2. --innodb
    3. --innodb-adaptive-checkpoint
    4. --innodb-adaptive-flushing
    5. --innodb-adaptive-flushing-lwm
    6. --innodb_adaptive_flushing_method
    7. --innodb-adaptive-hash-index
    8. --innodb-adaptive-hash-index-partitions
    9. --innodb-adaptive-max-sleep-delay
    10. --innodb-additional-mem-pool-size
    11. --innodb-api-bk-commit-interval
    12. --innodb-api-disable-rowlock
    13. --innodb-api-enable-binlog
    14. --innodb-api-enable-mdl
    15. --innodb-api-trx-level
    16. --innodb-auto-lru-dump
    17. --innodb-autoextend-increment
    18. --innodb-autoinc-lock-mode
    19. --innodb-background-scrub-data-check-interval
    20. --innodb-background-scrub-data-compressed
    21. --innodb-background-scrub-data-interval
    22. --innodb-background-scrub-data-uncompressed
    23. --innodb-blocking-buffer-pool-restore
    24. --innodb-buf-dump-status-frequency
    25. --innodb-buffer-pool-dump-at-shutdown
    26. --innodb-buffer-pool-dump-now
    27. --innodb-buffer-pool-dump-pct
    28. --innodb-buffer-pool-filename
    29. --innodb-buffer-pool-instances
    30. --innodb-buffer-pool-load-abort
    31. --innodb-buffer-pool-load-at-startup
    32. --innodb-buffer-pool-load-now
    33. --innodb-buffer-pool-pages
    34. --innodb-buffer-pool-blob
    35. --innodb-buffer-pool-index
    36. --innodb-buffer-pool-populate
    37. --innodb-buffer-pool-restore-at-startup
    38. --innodb-buffer-pool-shm-checksum
    39. --innodb-buffer-pool-shm-key
    40. --innodb-buffer-pool-size
    41. --innodb-change-buffer-max-size
    42. --innodb-change-buffering
    43. --innodb-checkpoint-age-target
    44. --innodb-checksum-algorithm
    45. --innodb-checksums
    46. --innodb-cleaner-lsn-age-factor
    47. --innodb-cmp
    48. --innodb-cmp-per-index-enabled
    49. --innodb-cmp-reset
    50. --innodb-cmpmem
    51. --innodb-cmpmem-reset
    52. --innodb-commit-concurrency
    53. --innodb-compression-algorithm
    54. --innodb-compression-failure-threshold-pct
    55. --innodb-compression-level
    56. --innodb-compression-pad-pct-max
    57. --innodb-concurrency-tickets
    58. --innodb-corrupt-table-action
    59. --innodb-data-file-path
    60. --innodb-data-home-dir
    61. --innodb-default-encryption-key-id
    62. --innodb-default-page-encryption-key
    63. --innodb-defragment
    64. --innodb-defragment-fill-factor
    65. --innodb-defragment-fill-factor-n-recs
    66. --innodb-defragment-frequency
    67. --innodb-defragment-n-pages
    68. --innodb-defragment-stats-accuracy
    69. --innodb-dict-size-limit
    70. --innodb-disable-sort-file-cache
    71. --innodb-doublewrite
    72. --innodb-doublewrite-file
    73. --innodb-empty-free-list-algorithm
    74. --innodb-enable-unsafe-group-commit
    75. --innodb-encrypt-log
    76. --innodb-encrypt-tables
    77. --innodb-encryption-rotate-key-age
    78. --innodb-encryption-rotation-iops
    79. --innodb-encryption-threads
    80. --innodb-expand-import
    81. --innodb-extra-rsegments
    82. --innodb-extra-undoslots
    83. --innodb-fast-checksum
    84. --innodb-fast-recovery
    85. --innodb-fast-shutdown
    86. --innodb-fatal-semaphore-wait-threshold
    87. --innodb-file-format
    88. --innodb-file-format-check
    89. --innodb-file-format-max
    90. --innodb-file-io-threads
    91. --innodb-file-per-table
    92. --innodb-flush-log-at-trx-commi
    93. --innodb-flush-log-at-trx-commit-session
    94. --innodb-flush-method
    95. --innodb-flush-neighbor-pages
    96. --innodb-flush-neighbors
    97. --innodb-flushing_avg_loops
    98. --innodb-force-load-corrupted
    99. --innodb-force-primary-key
    100. --innodb-force-recovery
    101. --innodb-foreground_preflush
    102. --innodb-ft-aux-table
    103. --innodb-ft-cache-size
    104. --innodb-ft-enable-diag_print
    105. --innodb-ft-enable-stopword
    106. --innodb-ft-max-token-size
    107. --innodb-ft-min-token-size
    108. --innodb-ft-num-word-optimize
    109. --innodb-ft-result-cache-limit
    110. --innodb-ft-server-stopword-table
    111. --innodb-ft-sort-pll-degree
    112. --innodb-ft-total-cache-size
    113. --innodb-ft-user-stopword-table
    114. --innodb-ibuf-accel-rate
    115. --innodb-ibuf-active-contract
    116. --innodb-ibuf-max-size
    117. --innodb-idle-flush-pct
    118. --innodb-immediate-scrub-data-uncompressed
    119. --innodb-import-table-from-xtrabackup
    120. --innodb-index-stats
    121. --innodb-instrument-semaphores
    122. --innodb-io-capacity
    123. --innodb-io-capacity-max
    124. --innodb-large-prefix
    125. --innodb-lazy-drop-table
    126. --innodb-lock-wait-timeout
    127. --innodb-lock-waits
    128. --innodb-locking-fake-changes
    129. --innodb-locks
    130. --innodb-locks-unsafe-for-binlog
    131. --innodb-log-arch-dir
    132. --innodb-log-arch-expire-sec
    133. --innodb-log-archive
    134. --innodb-log-block-size
    135. --innodb-log-buffer-size
    136. --innodb-log-checksum-algorithm
    137. --innodb-log-compressed-pages
    138. --innodb-log-file-size
    139. --innodb-log-files-in-group|
    140. --innodb-log-group-home-dir
    141. --innodb-lru-scan-depth
    142. --innodb-max-bitmap-file-size
    143. --innodb-max-changed-pages
    144. --innodb-max-dirty-pages-pct
    145. --innodb-max-dirty-pages-pct-lwm
    146. --innodb-max-purge-lag
    147. --innodb-max-purge-lag-delay
    148. --innodb-merge-sort-block-size
    149. --innodb-mirrored-log-groups
    150. --innodb-monitor_disable
    151. --innodb-monitor_enable
    152. --innodb-monitor_reset
    153. --innodb-monitor_reset-all
    154. --innodb-mtflush-threads
    155. --innodb-old-blocks-pct
    156. --innodb-old-blocks-time
    157. --innodb-online-alter-log-max-size
    158. --innodb-open-files
    159. --innodb-optimize-fulltext-only
    160. --innodb-overwrite-relay-log-info
    161. --innodb-page-size
    162. --innodb-pass-corrupt-table
    163. --innodb-prefix-index-cluster-optimization
    164. --innodb-print-all-deadlocks
    165. --innodb-purge-batch-size
    166. --innodb-purge-threads
    167. --innodb-random-read-ahead
    168. --innodb-read-ahead
    169. --innodb-read-ahead-threshold
    170. --innodb-read-io-threads
    171. --innodb-read-only
    172. --innodb-recovery-update-relay-log
    173. --innodb-replication-delay
    174. --innodb-rollback-on-timeout
    175. --innodb-rollback-segments
    176. --innodb-rseg
    177. --innodb-sched-priority-cleaner
    178. --innodb-scrub-log
    179. --innodb-scrub-log-interval
    180. --innodb-scrub-log-speed
    181. --innodb-show-locks-held
    182. --innodb-show-verbose-locks
    183. --innodb-sort-buffer-size
    184. --innodb-spin-wait-delay
    185. --innodb-stats-auto-recalc
    186. --innodb-stats-auto-update
    187. --innodb-stats-method
    188. --innodb-stats-modified-counter
    189. --innodb-stats-on-metadata
    190. --innodb-stats-persistent
    191. --innodb-stats-persistent-sample-pages
    192. --innodb-stats-sample-pages
    193. --innodb-stats-traditional
    194. --innodb-stats-transient-sample-pages
    195. --innodb-stats-update-need-lock
    196. --innodb-status-file
    197. --innodb-status-output
    198. --innodb-status-output-locks
    199. --innodb-strict-mode
    200. --innodb-support-xa
    201. --innodb-sync-array-size
    202. --innodb-sync-spin-loops
    203. --innodb-sys-indexes
    204. --innodb-sys-stats
    205. --innodb-sys-tables
    206. --innodb-table-locks
    207. --innodb-table-stats
    208. --innodb-thread-concurrency
    209. --innodb-thread-concurrency-timer-based
    210. --innodb-thread-sleep-delay
    211. --innodb-tmpdir
    212. --innodb-track-changed-pages
    213. --innodb-trx
    214. --innodb-undo-directory
    215. --innodb-undo_logs
    216. --innodb-undo-tablespaces
    217. --innodb-use-atomic-writes
    218. --innodb-use-fallocate
    219. --innodb-use-global-flush-log-at-trx-commit
    220. --innodb-use-mtflush
    221. --innodb-use-native-aio
    222. --innodb-use-purge-thread
    223. --innodb-use-stacktrace
    224. --innodb-use-sys-malloc
    225. --innodb-use-sys-stats-table
    226. --innodb-use-trim
    227. --innodb-write-io-threads
    228. --skip-innodb
    229. --skip-innodb-checksums
    230. --skip-innodb-doublewrite
    231. InnoDB system variables
  6. Aria options
    1. --aria-block-size
    2. --aria-checkpoint-interval
    3. --aria-checkpoint-log-activity
    4. --aria-encrypt-tables
    5. --aria-force-start-after-recovery-failures
    6. --aria-group-commit
    7. --aria-group-commit-interval
    8. --aria-log-file-size
    9. --aria-log-purge-type
    10. --aria-max-sort-file-size
    11. --aria-page-checksum
    12. --aria-pagecache-age-threshold
    13. --aria-pagecache-buffer-size
    14. --aria-pagecache-division-limit
    15. --aria-pagecache-file-hash-size
    16. --aria-recover
    17. --aria-recover-options
    18. --aria-repair-threads
    19. --aria-sort-buffer-size
    20. --aria-stats-method
    21. --aria-sync-log-dir
    22. --aria-used-for-temp-tables
    23. --deadlock-search-depth-long
    24. --deadlock-search-depth-short
    25. --deadlock-timeout-long
    26. --deadlock-timeout-short
  7. Performance Schema options
    1. --performance-schema
    2. --performance-schema-accounts-size
    3. --performance-schema-consumer-events-stages-current
    4. --performance-schema-consumer-events-stages-history
    5. --performance-schema-consumer-events-stages-history-long
    6. --performance-schema-consumer-events-statements-current
    7. --performance-schema-consumer-events-statements-history
    8. --performance-schema-consumer-events-statements-history-long
    9. --performance-schema-consumer-events-waits-current
    10. --performance-schema-consumer-events-waits-history
    11. --performance-schema-consumer-events-waits-history-long
    12. --performance-schema-consumer-global-instrumentation
    13. --performance-schema-consumer-statements-digest
    14. --performance-schema-consumer-thread-instrumentation
    15. --performance-schema-digests-size
    16. --performance-schema-events-stages-history-long-size
    17. --performance-schema-events-stages-history-size
    18. --performance-schema-events-statements-history-long-size
    19. --performance-schema-events-statements-history-size
    20. --performance-schema-events-waits-history-long-size
    21. --performance-schema-events-waits-history-size
    22. --performance-schema-hosts-size
    23. --performance-schema-max-cond-classes
    24. --performance-schema-max-cond-instances
    25. --performance-schema-max-digest-length
    26. --performance-schema-max-file-classes
    27. --performance-schema-max-file-handles
    28. --performance-schema-max-file-instances
    29. --performance-schema-max-mutex-classes
    30. --performance-schema-max-mutex-instances
    31. --performance-schema-max-rwlock-classes
    32. --performance-schema-max-rwlock-instances
    33. --performance-schema-max-socket-classes
    34. --performance-schema-max-socket-instances
    35. --performance-schema-max-stage-classes
    36. --performance-schema-max-statement-classes
    37. --performance-schema-max-table-handles
    38. --performance-schema-max-table-instances
    39. --performance-schema-max-thread-classes
    40. --performance-schema-max-thread-instances
    41. --performance-schema-session-connect-attrs-size
    42. --performance-schema-setup-actors-size
    43. --performance-schema-setup-objects-size
    44. --performance-schema-users-size
    45. Performance Schema system variables
  8. CONNECT options
    1. --connect-class-path
    2. --connect-conv-size
    3. --connect-exact-info
    4. --connect-indx-map
    5. --connect-json-grp-size
    6. --connect-jvm-path
    7. --connect-type-conv
    8. --connect-use-tempfile
    9. --connect-work-size
    10. --connect-xtrace
  9. Galera options
    1. --wsrep-auto-increment-control
    2. --wsrep-causal-reads
    3. --wsrep-certify-nonPK
    4. --wsrep-cluster-address
    5. --wsrep-cluster-name
    6. --wsrep-convert-LOCK-to-trx
    7. --wsrep-data-home-dir
    8. --wsrep-dbug-option
    9. --wsrep-debug
    10. --wsrep-desync
    11. --wsrep-dirty-reads
    12. --wsrep-drupal-282555-workaround
    13. --wsrep-gtid-domain-id
    14. --wsrep-gtid-mode
    15. --wsrep-forced-binlog-format
    16. --wsrep-load-data-splitting
    17. --wsrep-log-conflicts
    18. --wsrep-max-ws-rows
    19. --wsrep-max-ws-size
    20. --wsrep-mysql-replication-bundle
    21. --wsrep-new-cluster
    22. --wsrep-node-address
    23. --wsrep-node-incoming-address
    24. --wsrep-node-name
    25. --wsrep-notify-cmd
    26. --wsrep-on
    27. --wsrep-OSU-method
    28. --wsrep-provider
    29. --wsrep-provider-options
    30. --wsrep-recover
    31. --wsrep-replicate-myisam
    32. --wsrep-restart-slave
    33. --wsrep-retry-autocommit
    34. --wsrep-slave-fk-checks
    35. --wsrep-slave-threads
    36. --wsrep-slave-uk-checks
    37. --wsrep-sst-auth
    38. --wsrep-sst-donor
    39. --wsrep-sst-donor-rejects-queries
    40. --wsrep-sst-method
    41. --wsrep-sst-receive-address
    42. --wsrep-start-position
    43. --wsrep-sync-wait
    44. Galera system variables
  10. Options when debugging mysqld
    1. --console
    2. --core-file
  11. Other options
    1. --allow-suspicious-udfs
    2. --autocommit
    3. --automatic-sp-privileges
    4. --back-log
    5. --basedir
    6. --bind-address
    7. --bootstrap
    8. --character-set-client-handshake
    9. --character-set-filesystem
    10. --character-set-server
    11. --character-sets-dir
    12. --check-constraint-checks
    13. --chroot
    14. --collation-server
    15. --completion-type
    16. --connect-timeout
    17. --datadir
    18. --date-format
    19. --datetime-format
    20. --deadlock-search-depth-long
    21. --deadlock-search-depth-short
    22. --deadlock-timeout-long
    23. --deadlock-timeout-short
    24. --default-character-set
    25. --default-collation
    26. --default-regex-flags
    27. --default-storage-engine
    28. --default-table-type
    29. --default-tmp-storage-engine
    30. --default-time-zone
    31. --default-week-format
    32. --delay_key_write
    33. --des-key-file
    34. --div-precision-increment
    35. --enable-locking
    36. --enable-named-pipe
    37. --encrypt-binlog
    38. --encrypt-tmp-disk-tables
    39. --encrypt-tmp-files
    40. --encryption-algorithm
    41. --engine-condition-pushdown
    42. --event-scheduler
    43. --exit-info
    44. --expire-logs-days
    45. --explicit-defaults-for-timestamp
    46. --extra-max-connections
    47. --extra-port
    48. --flush
    49. --flush-time
    50. --ft-boolean-syntax
    51. --ft-max-word-len
    52. --ft-min-word-len
    53. --ft-query-expansion-limit
    54. --ft-stopword-file
    55. --general-log
    56. --general-log-file
    57. --getopt-prefix-matching
    58. --group-concat-max-len
    59. --help
    60. --histogram-size
    61. --histogram-type
    62. --host-cache-size
    63. --ignore-db-dir
    64. --init-connect
    65. --init-file
    66. --interactive-timeout
    67. --language
    68. --large-pages
    69. --lc-messages
    70. --lc-messages-dir
    71. --lc-time-names
    72. --local-infile
    73. --lock-wait-timeout
    74. --log
    75. --log-error
    76. --log-long-format
    77. --log-output
    78. --log-queries-not-using-indexes
    79. --log-short-format
    80. --log-slow-admin-statements
    81. --log-slow-file
    82. --log-slow-filter
    83. --log-slow-queries
    84. --log-slow-rate-limit
    85. --log-slow-slave-statements
    86. --log-slow-time
    87. --log-slow-verbosity
    88. --log-tc
    89. --log-tc-size
    90. --log-update
    91. --log-warnings
    92. --long-query-time
    93. --low-priority-updates
    94. --lower-case-table-names
    95. --master-connect-retry
    96. --max-allowed-packet
    97. --max-connections
    98. --max-connect-errors
    99. --max-delayed-threads
    100. --max-digest-length
    101. --max-error-count
    102. --max-length-for-sort-data
    103. --max-long-data-size
    104. --max-prepared-stmt-count
    105. --max-sp-recursion-depth
    106. --max-statement_time
    107. --max-tmp-tables
    108. --max-user-connections
    109. --max-write-lock-count
    110. --memlock
    111. --metadata-locks-cache-size
    112. --metadata-locks-hash-instances
    113. --min-examined-row-limit
    114. --mrr-buffer-size
    115. --multi-range-count
    116. --mysql56-temporal-format
    117. --ndb-use-copying-alter-table
    118. --net-buffer-length
    119. --net-read-timeout
    120. --net-retry-count
    121. --net-write-timeout
    122. --one-thread
    123. --open-files-limit
    124. --pid-file
    125. --plugin-load
    126. --plugin-load-add
    127. --plugin-dir
    128. --plugin-maturity
    129. --port
    130. --port-open-timeout
    131. --preload-buffer-size
    132. --profiling-history-size
    133. --progress-report-time
    134. --query-cache-limit
    135. --query-cache-min-res-unit
    136. --query-cache-size
    137. --query-cache-strip-comments
    138. --query-cache-type
    139. --query-cache-wlock-invalidate
    140. --read-rnd-buffer-size
    141. --read-only
    142. --safe-show-database
    143. --safe-user-create
    144. --safemalloc-mem-limit
    145. --secure-auth
    146. --secure-file-priv
    147. --set-variable
    148. --show-slave-auth-info
    149. --skip-automatic-sp-privileges
    150. --skip-external-locking
    151. --skip-grant-tables
    152. --skip-host-cache
    153. --skip-large-pages
    154. --skip-locking
    155. --skip-name-resolve
    156. --skip-networking
    157. --skip-partition
    158. --skip-show-database
    159. --skip-slave-start
    160. --skip-ssl
    161. --skip-stack-trace
    162. --skip-symbolic-links
    163. --skip-symlink
    164. --skip-thread-priority
    165. --slow_launch_time
    166. --slow-query-log
    167. --slow-query-log-file
    168. --socket
    169. --sort-buffer-size
    170. --sql-bin-update-same
    171. --sql-mode
    172. --ssl
    173. --ssl-ca
    174. --ssl-capath
    175. --ssl-cert
    176. --ssl-cipher
    177. --ssl-crl
    178. --ssl-crlpath
    179. --ssl-key
    180. --stored-program-cache
    181. --strict-password-validation
    182. --symbolic-links
    183. --sync-frm
    184. --table-lock-wait-timeout
    185. --tc-heuristic-recover
    186. --temp-pool
    187. --test-expect-abort
    188. --test-ignore-wrong-options
    189. --thread-cache-size
    190. --thread_concurrency
    191. --thread-handling
    192. --thread-pool-idle-timeout
    193. --thread-pool-max-threads
    194. --thread-pool-min-threads
    195. --thread-pool-size
    196. --thread-pool-stall-limit
    197. --thread_stack
    198. --timed-mutexes
    199. --time-format
    200. --tmpdir
    201. --transaction-isolation
    202. --transaction-alloc-block-size
    203. --transaction-prealloc-size
    204. --transaction-read-only
    205. --updatable-views-with-limit
    206. --use-symbolic-links
    207. --user
    208. --userstat
    209. --verbose
    210. --version
    211. --wait-timeout
    212. --warnings
    213. Other system variables
  12. cracklib_password_check plugin
    1. cracklib_password_check
    2. cracklib_password_check_dictionary
  13. Feedback plugin
    1. feedback
    2. feedback_http_proxy
    3. feedback_send_retry_wait
    4. feedback_send_timeout
    5. feedback_url
    6. feedback_user_info
  14. HandlerSocket plugin
    1. handlersocket-accept-balance
    2. handlersocket-address
    3. handlersocket-backlog
    4. handlersocket-epoll
    5. handlersocket-plain-secret
    6. handlersocket-plain-secret_wr
    7. handlersocket-port
    8. handlersocket-port-wr
    9. handlersocket-rcvbuf
    10. handlersocket-readsize
    11. handlersocket-sndbuf
    12. handlersocket-threads
    13. handlersocket-threads-wr
    14. handlersocket-timeout
    15. handlersocket-verbose
    16. handlersocket-wrlock-timeout
  15. Query_Response_Time plugin
    1. query-response-time-range-base
    2. query-response-time-stats
  16. Semisynchronous Replication plugin
    1. rpl-semi-sync-master-enabled
    2. rpl-semi-sync-master-timeout
    3. rpl-semi-sync-master-trace-level
    4. rpl-semi-sync-master-wait-no-slave
    5. rpl_semi-sync-master-wait-point
  17. Server Audit
    1. server-audit-events
    2. server-audit-excl-users
    3. server-audit-file-path
    4. server-audit-file-rotate-now
    5. server-audit-file-rotate-size
    6. server-audit-file-rotations
    7. server-audit-incl-users
    8. server-audit-logging
    9. server-audit-mode
    10. server-audit-output-type
    11. server-audit-query-limit
    12. server-audit-syslog-facility
    13. server-audit-syslog-ident
    14. server-audit-syslog-info
    15. server-audit-syslog-priority
  18. simple_password_check plugin
    1. simple_password_check_digits
    2. simple_password_check_letters_same_case
    3. simple_password_check_minimal_length
    4. simple_password_check_other_characters
  19. SQL_ERROR_LOG plugin
    1. sql_error_log_filename
    2. sql_error_log_rate
    3. sql_error_log_rotate
    4. sql_error_log_rotations
    5. sql_error_log_size_limit
  20. Default values

This page lists all of the options for mysqld, ordered by topic. For a full alphabetical list of all mysqld options, as well as server and status variables, see Full list of MariaDB options, system and status variables.

In many cases, the entry here is a summary, and links to the full description.

See mysqld startup options for which files and groups mysqld reads for it's default options.

Compatibility options

The following options have been added to MariaDB to make it more compliant with other MariaDB and MySQL versions:

-a, --ansi


--new

  • Description: Use new functionality that will exist in next version of MariaDB. This function exists to make it easier to prepare for an upgrade. For version 5.1 this functions enables the LIST and RANGE partitions functions for ndbcluster.

--old-style-user-limits

  • Description: Enable old-style user limits (before MySQL 5.0.3, user resources were counted per each user+host vs. per account).

--safe-mode

  • Description: Disable some potential unsafe optimizations. For 5.2, INSERT DELAYED is disabled, myisam_recover_options is set to DEFAULT (automatically recover crashed MyISAM files) and the query cache is disabled. For Aria tables, disable bulk insert optimization to enable one to use aria_read_log to recover tables even if tables are deleted (good for testing recovery).

--skip-new

  • Description: Disables --new in 5.2. In 5.1 used to disable some new potentially unsafe functions.

Compatibility System Variables

Replication and binary logging options

--abort-slave-event-count

  • Commandline: --abort-slave-event-count=#
  • Description: Option used by mysql-test for debugging and testing of replication.

--binlog-do-db

  • Commandline: --binlog-do-db=name
  • Description: Tells the master it should log updates for the specified database, and exclude all others not explicitly mentioned. See Using and Maintaining the Binary Log.

--binlog-ignore-db


--binlog-row-event-max-size

  • Commandline: --binlog-row-event-max-size=#
  • Description: The maximum size of a row-based binary log event in bytes. Rows will be grouped into events smaller than this size if possible. The value has to be a multiple of 256.

--disconnect-slave-event-count

  • Commandline: --disconnect-slave-event-count=#
  • Description: Option used by mysql-test for debugging and testing of replication.

--init-rpl-role

  • Commandline: --init-rpl-role=name
  • Description: Set the replication role.

--log-basename

  • Commandline: --log-basename=name
  • Description: Basename for all log files and the .pid file. This sets all log file names at once (in 'datadir') and is normally the only option you need for specifying log files. This is especially recommended to be set if you are using replication as it ensures that your log file names are not depending on your host name. Sets names for --log-bin, --log-bin-index, --relay-log, --relay-log-index, --general-log-file, --log-slow-query-log-file, --log-error-file, and --pid-file.
  • Introduced: MariaDB 5.2

--log-bin-trust-routine-creators


--master-host

  • Commandline: --master-host=name
  • Description: Master hostname or IP address for replication. If not set, the slave thread will not be started. Note that the setting of master-host will be ignored if there exists a valid master.info file.

--master-info-file

  • Commandline: --master-info-file=name
  • Description: The location and name of the file that remembers the master and where the I/O replication thread is in the master's binary logs.

--master-password

  • Commandline: --master-password=name
  • Description: The password the slave thread will authenticate with when connecting to the master. If not set, an empty password is assumed. The value in master.info will take precedence if it can be read.

--master-port

  • Commandline: --master-port=#
  • Description: The port the master is listening on. If not set, the compiled setting of MYSQL_PORT is assumed. If you have not tinkered with configure options, this should be 3306. The value in master.info will take precedence if it can be read.

--master-ssl


--master-ssl-ca

  • Commandline: --master-ssl-ca[=name]
  • Description: Master TLS CA file. Only applies if you have enabled master-ssl.

--master-ssl-capath

  • Commandline: --master-ssl-capath[=name]
  • Description: Master TLS CA path. Only applies if you have enabled master-ssl.

--master-ssl-cert

  • Commandline: --master-ssl-cert[=name]
  • Description: Master TLS certificate file name. Only applies if you have enabled master-ssl.

--master-ssl-cipher

  • Commandline: --master-ssl-cipher[=name]
  • Description: Master TLS cipher. Only applies if you have enabled master-ssl.

--master-ssl-key

  • Commandline: --master-ssl-key[=name]
  • Description: Master TLS keyfile name. Only applies if you have enabled master-ssl.

--master-user

  • Commandline: --master-user=name
  • Description: The username the slave thread will use for authentication when connecting to the master. The user must have FILE privilege. If the master user is not set, user test is assumed. The value in master.info will take precedence if it can be read.

--max-binlog-dump-events

  • Commandline: --max-binlog-dump-events=#
  • Description: Option used by mysql-test for debugging and testing of replication.

--replicate-rewrite-db

  • Commandline: --replicate-rewrite-db=from_db->to_db
  • Description: If a statement has from_db as the default database (USE), it will replicate to the to_db database. For example, USE from_db; INSERT ... will perform the insert in the to_db database. For multiple rewrite rules, use this option multiple times. Only table statements are replicated, not those affecting the database, such as DROP DATABASE. Cross-database updates do not work with this option, database name translation takes place before any other --replicate-* rules are tested, and statements that use table names qualified with database names do not work with other filters such as --replicate-do-table.

    If the > character is a special character, the options can be quoted, for example replicate-rewrite-db="master_db_name->slave_db_name"

--replicate-same-server-id

  • Commandline: --replicate-same-server-id
  • Description: In replication, if set to 1, do not skip events having our server id. Default value is 0 (to break infinite loops in circular replication). Can't be set to 1 if log-slave-updates is used.

--sporadic-binlog-dump-fail

  • Commandline: --sporadic-binlog-dump-fail
  • Description: Option used by mysql-test for debugging and testing of replication.

--sysdate-is-now

  • Commandline: --sysdate-is-now
  • Description: Non-default option to alias SYSDATE() to NOW() to make it safe for replication. Since 5.0, SYSDATE() has returned a `dynamic' value different for different invocations, even within the same statement.

Replication and binary logging system variables

Optimizer options

--record-buffer


--table-cache


Optimizer system variables

MyISAM options

--delay-key-write-for-all-tables

  • Commandline: --delay-key-write-for-all-tables
  • Description: Don't flush key buffers between writes for any MyISAM table. (Deprecated option, use --delay-key-write=all instead.)

--external-locking

  • Commandline: --external-locking
  • Description: Use system (external) locking (disabled by default). With this option enabled you can run myisamchk to test (not repair) tables while the server is running. Disable with --skip-external-locking.

--log-isam

  • Commandline: --log-isam[=file_name]
  • Description: Enable the MyISAM log, which logs all MyISAM changes to file. If no filename is provided, the default, myisam.log is used.

MyISAM options

InnoDB options

--innodb

  • Commandline: --innodb=value, --skip-innodb
  • Description: This variable controls whether or not to load the InnoDB storage engine. Possible values are ON, OFF, FORCE or FORCE_PLUS_PERMANENT (from MariaDB 5.5). If set to OFF (the same as --skip-innodb), since InnoDB is the default storage engine, the server will not start unless another storage engine has been chosen with --default-storage-engine. FORCE means that the storage engine must be successfully loaded, or else the server won't start. FORCE_PLUS_PERMANENT enables the plugin, but if plugin cannot initialize, the server will not start. In addition, the plugin cannot be uninstalled while the server is running.

--innodb-buffer-pool-pages

  • Commandline: --innodb-buffer-pool-pages
  • Description:
  • Default: ON

--innodb-buffer-pool-blob

  • Commandline: --innodb-buffer-pool-blob
  • Description:
  • Default: ON

--innodb-buffer-pool-index

  • Commandline: --innodb-buffer-pool-index
  • Description:
  • Default: ON

--innodb-cmp

  • Commandline: --innodb-cmp
  • Description:
  • Default: ON

--innodb-cmp-reset

  • Commandline: --innodb-cmp-reset
  • Description:
  • Default: ON

--innodb-cmpmem

  • Commandline: --innodb-cmpmem
  • Description:
  • Default: ON

--innodb-cmpmem-reset

  • Commandline: --innodb-cmpmem-reset
  • Description:
  • Default: ON

--innodb-expand-import

  • Commandline: --innodb-expand-import
  • Description:
  • Default: 0

--innodb-fast-recovery

  • Commandline: --innodb-fast-recovery
  • Description:
  • Default: FALSE

--innodb-file-io-threads

  • Commandline: --innodb-file-io-threads
  • Description:
  • Default: 4

--innodb-flush-log-at-trx-commit-session

  • Commandline: --innodb-flush-log-at-trx-commit-session
  • Description:
  • Default: 3

--innodb-index-stats

  • Commandline: --innodb-index-stats
  • Description:
  • Default: ON

--innodb-lock-waits

  • Commandline: --innodb-lock-waits
  • Description:
  • Default: ON

--innodb-locks

  • Commandline: --innodb-locks
  • Description:
  • Default: ON

--innodb-overwrite-relay-log-info

  • Commandline: --innodb-overwrite-relay-log-info
  • Description:
  • Default: FALSE

--innodb-rseg

  • Commandline: --innodb-rseg
  • Description:
  • Default: ON

--innodb-status-file

  • Commandline: --innodb-status-file
  • Description:
  • Default: FALSE

--innodb-sys-indexes

  • Commandline: --innodb-sys-indexes
  • Description:
  • Default: ON

--innodb-sys-stats

  • Commandline: --innodb-sys-stats
  • Description:
  • Default: ON

--innodb-sys-tables

  • Commandline: --innodb-sys-tables
  • Description:
  • Default: ON

--innodb-table-stats

  • Commandline: --innodb-table-stats
  • Description:
  • Default: ON

--innodb-trx

  • Commandline: --innodb-trx
  • Description:
  • Default: ON

InnoDB system variables

Aria options

The following options are used with the Aria storage engine.

Performance Schema options

The following options are used with MariaDB's Performance Schema.

--performance-schema-consumer-events-stages-current

  • Commandline: --performance-schema-consumer-events-stages-current
  • Description: Enable the events-stages-current consumer.
  • Default: OFF

--performance-schema-consumer-events-stages-history

  • Commandline: --performance-schema-consumer-events-stages-history
  • Description: Enable the events-stages-history consumer.
  • Default: OFF

--performance-schema-consumer-events-stages-history-long

  • Commandline: --performance-schema-consumer-events-stages-history-long
  • Description: Enable the events-stages-history-long consumer.
  • Default: OFF

--performance-schema-consumer-events-statements-current

  • Commandline: --performance-schema-consumer-events-statements-current
  • Description: Enable the events-statements-current consumer. Use --skip-performance-schema-consumer-events-statements-current to disable.
  • Default: ON

--performance-schema-consumer-events-statements-history

  • Commandline: --performance-schema-consumer-events-statements-history
  • Description: Enable the events-statements-history consumer.
  • Default: OFF

--performance-schema-consumer-events-statements-history-long

  • Commandline: --performance-schema-consumer-events-statements-history-long
  • Description: Enable the events-statements-history-long consumer.
  • Default: OFF

--performance-schema-consumer-events-waits-current

  • Commandline: --performance-schema-consumer-events-waits-current
  • Description: Enable the events-waits-current consumer.
  • Default: OFF

--performance-schema-consumer-events-waits-history

  • Commandline: --performance-schema-consumer-events-waits-history
  • Description: Enable the events-waits-history consumer.
  • Default: OFF

--performance-schema-consumer-events-waits-history-long

  • Commandline: --performance-schema-consumer-events-waits-history-long
  • Description: Enable the events-waits-history-long consumer.
  • Default: OFF

--performance-schema-consumer-global-instrumentation

  • Commandline: --performance-schema-consumer-global-instrumentation
  • Description: Enable the global-instrumentation consumer. Use --skip-performance-schema-consumer-global-instrumentation to disable.
  • Default: ON

--performance-schema-consumer-statements-digest

  • Commandline: --performance-schema-consumer-statements-digest
  • Description: Enable the statements-digest consumer. Use --skip-performance-schema-consumer-statements-digest to disable.
  • Default: ON

--performance-schema-consumer-thread-instrumentation

  • Commandline: --performance-schema-consumer-thread-instrumentation
  • Description: Enable the statements-thread-instrumentation. Use --skip-performance-schema-thread-instrumentation to disable.
  • Default: ON

Performance Schema system variables

CONNECT options

The following options are used with the CONNECT storage engine.

Galera options

The following options are used with Galera Cluster.

--wsrep-new-cluster

  • Commandline: --wsrep-new-cluster
  • Description: Bootstrap a cluster. It works by overriding the current value of wsrep_cluster_address. It is recommended not to add this option to the config file as this will trigger bootstrap on every server start.

Galera system variables

Options when debugging mysqld

--console

  • Description: Windows-only option that keeps the console window open and for writing log messages to stderr and stdout. If specified together with --log-error, the last option will take precedence.

--core-file

  • Description: Write core file when mysqld crashes. The file name and location are system dependent; on Linux it is usually called core.pid, written to the data directory.

OptionDescriptionIntroduced
-#, --debug[=name]Use logging through the DBUG library. Just using --debug will write a trace of what mysqld is doing to /tmp/mysqld.trace.
--debug-assert-if-crashed-tableDo an assert in handler::print_error() if we get a crashed table.
-debug-crc-break=# Call my_debug_put_break_here() if crc matches this number (for debug).
--debug-flushDefault debug log with flush after write.
--debug-no-thread-alarm=#
--debug-sync-timeout[=#]Enable the debug sync facility and optionally specify a default wait timeout in seconds. A zero value keeps the facility disabled.
--gdbSet up signals usable for debugging.
--silent-startupDon't print Notes to the error log during startup.MariaDB 10.1.8
--sync-sys Enable/disable system sync calls. Syncs should only be turned off (--disable-sync-sys) when running tests or debugging!
--thread-alarmEnable/disable system thread alarm calls. Should only be turned off (--disable-thread-alarm) when running tests or debugging!MariaDB 5.3
--debug_binlog_fsync_sleep=# If not set to zero, sets the number of micro-seconds to sleep after running fsync() on the binary log to flush transactions to disk. This can thus be used to artificially increase the perceived cost of such an fsync().MariaDB 5.3

Other options

--allow-suspicious-udfs

  • Commandline: --allow-suspicious-udfs
  • Description: Allows use of user-defined functions consisting of only one symbol x() without corresponding x_init() or x_deinit(). That also means that one can load any function from any library, for example exit() from libc.so. Not recommended unless you require old UDF's with one symbol that cannot be recompiled

--bind-address

  • Commandline: --bind-address=addr
  • Description: By default, the MariaDB server listens for TCP/IP connections on a network socket bound to a single address, 0.0.0.0. You can specify an alternative when the server starts using this option; either a host name, an IPv4 or an IPv6 address. In Debian and Ubuntu, the default bind_address is 127.0.0.1, which binds the server to listen on localhost only.
  • Data Type: string
  • Valid Values: Host name, IPv4, IPv6 (>= MariaDB 5.5)

--bootstrap

  • Commandline: --bootstrap
  • Description: Used by mysql installation scripts, such as mysql_install_db to execute SQL scripts before any privilege or system tables exist. Do no use while an existing MariaDB instance is running.

--character-set-client-handshake

  • Commandline: --character-set-client-handshake
  • Description: Don't ignore client side character set value sent during handshake.

--chroot

  • Commandline: --chroot=name
  • Description: Chroot mysqld daemon during startup.

--default-character-set

  • Commandline: --default-character-set=name
  • Description: Set the default character set (deprecated option, use character-set-server instead).

--default-collation

  • Commandline: --default-collation=name
  • Description: Set the default collation (deprecated option, use collation-server instead).

--des-key-file

  • Commandline: --des-key-file=name
  • Description: Load keys for des_encrypt() and des_encrypt from given file.

--enable-locking

  • Commandline: --enable-locking
  • Description: Deprecated option, use external-locking instead.

--exit-info

  • Commandline: --exit-info[=#]
  • Description: Used for debugging. Use at your own risk.

--getopt-prefix-matching

  • Commandline: --getopt-prefix-matching={0|1}
  • Description: Makes it possible to disable historical "unambiguous prefix" matching in the command-line option parsing.
  • Default: TRUE
  • Introduced: MariaDB 10.1.3

--help

  • Commandline: --help
  • Description: Displays help with many commandline options described, and exits.

--ignore-db-dir

  • Commandline: --ignore-db-dir=name
  • Description: Tells the server that this directory can never be a database. That means two things - firstly it is ignored by the SHOW DATABASES command and INFORMATION_SCHEMA tables. And secondly, USE, CREATE DATABASE and SELECT statements will return an error if the database from the ignored list specified. Use this option several times if you need to ignore more than one directory. To make the list empty set the void value to the option as --ignore-db-dir=. Corresponding read-only variable ignore_db_dirs shows the current list.
  • Introduced: MariaDB 5.3.9

--log-long-format

  • Commandline: --log-long-format
  • Description: Log some extra information to update log. Please note that this option is deprecated; see log-short-format.

--log-short-format

  • Commandline: --log-short-format
  • Description: Don't log extra information to update and slow-query logs.

--log-slow-file

  • Commandline: --log-slow-file=name
  • Description: Log slow queries to given log file. Defaults logging to hostname-slow.log

--log-slow-time

  • Commandline: --log-slow-time=#
  • Description: Log all queries that have taken more than long-query-time seconds to execute to the slow query log, if active. The argument will be treated as a decimal value with microsecond precision.

--log-tc

  • Commandline: --log-tc=name
  • Description: Path to transaction coordinator log (used for transactions that affect more than one storage engine, when binary log is disabled).

--log-update

  • Commandline: --log-update[=name]
  • Description: The update log is deprecated since version 5.0, is replaced by the binary log and this option just turns on --log-bin instead.

--master-connect-retry

  • Commandline: --master-connect-retry=#
  • Description: Deprecated in 5.1.17 and removed in 5.5. The number of seconds the slave thread will sleep before retrying to connect to the master, in case the master goes down or the connection is lost.

--memlock

  • Commandline: --memlock
  • Description: Lock mysqld in memory.

--ndb-use-copying-alter-table

  • Commandline: --ndb-use-copying-alter-table
  • Description: Force ndbcluster to always copy tables at alter table (should only be used if on-line alter table fails).

--one-thread

  • Commandline: --one-thread
  • Description: (Deprecated): Only use one thread (for debugging under Linux). Use thread-handling=no-threads instead.

--plugin-load

  • Commandline: --plugin-load=name
  • Description: Optional semicolon-separated list of plugins to load, where each plugin is identified as name=library, where name is the plugin name and library is the plugin library in plugin_dir.

--plugin-load-add

  • Commandline: --plugin-load-add=name
  • Description: Takes the same type of arguments that --plugin-load does and complements --plugin-load by appending its argument to the list specified by --plugin-load. So --plugin-load can be considered a composite option consisting of resetting the plugin load list and then calling --plugin-load-add to process the argument. Note that the order in which you specify --plugin-load and --plugin-load-add is important : "--plugin-load=x --plugin-load-add=y" will be equivalent to "--plugin-load=x,y" whereas "--plugin-load-add=y --plugin-load=x" will be equivalent to "plugin-load=x".
  • Introduced: MariaDB 10.0.1

--port-open-timeout

  • Commandline: --port-open-timeout=#
  • Description: Maximum time in seconds to wait for the port to become free. (Default: No wait).

--safe-user-create

  • Commandline: --safe-user-create
  • Description: Don't allow new user creation by the user who has no write privileges to the mysql.user table.

--safemalloc-mem-limit

  • Commandline: --safemalloc-mem-limit=#
  • Description: Simulate memory shortage when compiled with the --with-debug=full option.

--set-variable

  • Commandline: --set-variable=name
  • Description: Change the value of a variable. Please note that this option is deprecated; you can set variables directly with --variable-name=value.

--show-slave-auth-info

  • Commandline: --show-slave-auth-info
  • Description: Show user and password in SHOW SLAVE HOSTS on this master.

--skip-grant-tables


--skip-host-cache

  • Commandline: --skip-host-cache
  • Description: Don't cache host names.

--skip-locking


--skip-partition

  • Commandline: --skip-partition, --disable-partition
  • Description: Disables user-defined partitioning. Previously partitioned tables cannot be accessed or modifed. Tables can still be seen with SHOW TABLES or by viewing the INFORMATION_SCHEMA.TABLES table. Tables can be dropped with DROP TABLE, but this only removes .frm files, not the associated .par files, which will need to be removed manually.

--skip-slave-start

  • Commandline: --skip-slave-start
  • Description: If set, slave is not autostarted.

--skip-ssl


--skip-stack-trace

  • Commandline: --skip-stack-trace
  • Description: Don't print a stack trace on failure.

  • Commandline: --skip-symbolic-links
  • Description: Don't allow symlinking of tables.

  • Commandline: --skip-symlink
  • Description: Don't allow symlinking of tables. Deprecated and removed in MariaDB 5.5. Use[ [#-skip-symbolic-links--skip-symbolic-links]] instead.
  • Removed: MariaDB 5.5

--skip-thread-priority

  • Commandline: --skip-thread-priority
  • Description: Don't give threads different priorities. Deprecated and removed in MariaDB 10.0.
  • Removed: MariaDB 10.0

--sql-bin-update-same

  • Commandline: --sql-bin-update-same=#
  • Description: The update log was deprecated in version 5.0 and replaced by the binary log, so this option did nothing since then. Deprecated and removed in MariaDB 5.5.
  • Removed: MariaDB 5.5

--ssl

  • Commandline: --ssl
  • Description: Enable TLS for connection (automatically enabled with other flags). Disable with '--skip-ssl'.

  • Commandline: --symbolic-links
  • Description: Enable symbolic link support.

--tc-heuristic-recover

  • Commandline: --tc-heuristic-recover=name
  • Description: Decision to use in heuristic recover process. Possible values are COMMIT or ROLLBACK.

--temp-pool

  • Commandline: --temp-pool
  • Description: Using this option will cause most temporary files created to use a small set of names, rather than a unique name for each new file.

--test-expect-abort

  • Commandline: --test-expect-abort
  • Description: Expect that server aborts with 'abort'; Don't write out server variables on 'abort'. Useful only for test scripts.

--test-ignore-wrong-options

  • Commandline: --test-ignore-wrong-options
  • Description: Ignore wrong enums values in command line arguments. Useful only for test scripts.

  • Commandline: --use-symbolic-links
  • Description: Enable symbolic link support. Deprecated option; use --symbolic-links instead.

--user

  • Commandline: --user=name
  • Description: Run mysqld daemon as user.

--verbose

  • Commandline: -v, --verbose
  • Description: Used with help option for detailed help.

--warnings

  • Commandline: --warnings[=#]
  • Description: Deprecated; use log-warnings instead.

Other system variables

cracklib_password_check plugin

The options for the cracklib_password_check plugin are all described on the cracklib_password_check Plugin page.

Feedback plugin

The options for the Feedback Plugin are all described on the Feedback Plugin page.

HandlerSocket plugin

The options for the HandlerSocket plugin are all described on the HandlerSocket Configuration Option page.

Query_Response_Time plugin

The options for the Query_Response_Time plugin are described on the QUERY_RESPONSE_TIME plugin page.

Semisynchronous Replication plugin

The options for the Semisynchronous Replication plugin are described on the Semisynchronous Replication plugin page.

Server Audit

The options for the MariaDB Audit plugin are described on the Server Audi System Variables page.

simple_password_check plugin

The options for the simple_password_check plugin are described on the simple_password_check page.

SQL_ERROR_LOG plugin

The options for the SQL_ERROR_LOG plugin are described on the SQL_ERROR_LOG Plugin System Variables page.

Default values

You can verify the default values for an option by doing:

mysqld --no-defaults --help --verbose

The default values are at the end of this list

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