Mis bases de datos se caen contínuamente

[Tony Martin]

Buenas tardes a todos,

Soy nuevo trabajando con bases de datos mySQL y me he encontrado con un problema:

Recientemente instalé 4 bases de datos en mi servidor para poder instalar 4 sitios de WordPress. Durante mucho tiempo estuvieron funcionando sin problemas (al menos que yo sepa), pero en los últimos días las bases de datos fallan constantemente y me hacen imposible trabajar, además de que hacen inaccesibles los sitios de Wordpress que ya tengo funcionando.

Fallan todas las bases a la vez así que supongo que el error no será de una de ellas, sino de mi instalación de mysql, aunque la verdad es que no tengo ni idea.

Copio al final de mi mensaje el log de error que encontré en var/log/mysql/error.log.

Gracias de antemano y espero que podáis ayudarme. Un saludo!

2017-09-02T09:38:25.399957Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)
2017-09-02T09:38:25.400181Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)
2017-09-02T09:38:25.566991Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2017-09-02T09:38:25.569944Z 0 [Note] /usr/sbin/mysqld (mysqld 5.7.19-0ubuntu0.16.04.1) starting as process 19205 ...
2017-09-02T09:38:25.581891Z 0 [Note] InnoDB: PUNCH HOLE support available
2017-09-02T09:38:25.581945Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2017-09-02T09:38:25.581954Z 0 [Note] InnoDB: Uses event mutexes
2017-09-02T09:38:25.582034Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2017-09-02T09:38:25.582039Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.8
2017-09-02T09:38:25.582043Z 0 [Note] InnoDB: Using Linux native AIO
2017-09-02T09:38:25.582776Z 0 [Note] InnoDB: Number of pools: 1
2017-09-02T09:38:25.584246Z 0 [Note] InnoDB: Using CPU crc32 instructions
2017-09-02T09:38:25.586141Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2017-09-02T09:38:25.586342Z 0 [ERROR] InnoDB: mmap(137428992 bytes) failed; errno 12
2017-09-02T09:38:25.586354Z 0 [ERROR] InnoDB: Cannot allocate memory for the buffer pool
2017-09-02T09:38:25.586358Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
2017-09-02T09:38:25.586365Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2017-09-02T09:38:25.586369Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2017-09-02T09:38:25.586374Z 0 [ERROR] Failed to initialize plugins.
2017-09-02T09:38:25.586377Z 0 [ERROR] Aborting

2017-09-02T09:38:25.586382Z 0 [Note] Binlog end
2017-09-02T09:38:25.586549Z 0 [Note] Shutting down plugin 'MyISAM'
2017-09-02T09:38:25.587378Z 0 [Note] /usr/sbin/mysqld: Shutdown complete

2017-09-02T09:38:55.875467Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)
2017-09-02T09:38:55.875548Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)
2017-09-02T09:38:56.054616Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2017-09-02T09:38:56.058257Z 0 [Note] /usr/sbin/mysqld (mysqld 5.7.19-0ubuntu0.16.04.1) starting as process 19360 ...
2017-09-02T09:38:56.074037Z 0 [Note] InnoDB: PUNCH HOLE support available
2017-09-02T09:38:56.074092Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2017-09-02T09:38:56.074100Z 0 [Note] InnoDB: Uses event mutexes
2017-09-02T09:38:56.074106Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2017-09-02T09:38:56.074112Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.8
2017-09-02T09:38:56.074120Z 0 [Note] InnoDB: Using Linux native AIO
2017-09-02T09:38:56.076114Z 0 [Note] InnoDB: Number of pools: 1
2017-09-02T09:38:56.076875Z 0 [Note] InnoDB: Using CPU crc32 instructions
2017-09-02T09:38:56.080279Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2017-09-02T09:38:56.081368Z 0 [ERROR] InnoDB: mmap(137428992 bytes) failed; errno 12
2017-09-02T09:38:56.081393Z 0 [ERROR] InnoDB: Cannot allocate memory for the buffer pool
2017-09-02T09:38:56.081401Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
2017-09-02T09:38:56.081411Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2017-09-02T09:38:56.081417Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2017-09-02T09:38:56.081425Z 0 [ERROR] Failed to initialize plugins.
2017-09-02T09:38:56.081430Z 0 [ERROR] Aborting

2017-09-02T09:38:56.081441Z 0 [Note] Binlog end
2017-09-02T09:38:56.082849Z 0 [Note] Shutting down plugin 'MyISAM'
2017-09-02T09:38:56.083776Z 0 [Note] /usr/sbin/mysqld: Shutdown complete

2017-09-02T09:39:13.826792Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)
2017-09-02T09:39:13.826872Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)
2017-09-02T09:39:14.004011Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2017-09-02T09:39:14.008859Z 0 [Note] /usr/sbin/mysqld (mysqld 5.7.19-0ubuntu0.16.04.1) starting as process 19516 ...
2017-09-02T09:39:14.023710Z 0 [Note] InnoDB: PUNCH HOLE support available
2017-09-02T09:39:14.023761Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2017-09-02T09:39:14.023768Z 0 [Note] InnoDB: Uses event mutexes
2017-09-02T09:39:14.023773Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2017-09-02T09:39:14.023778Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.8
2017-09-02T09:39:14.023782Z 0 [Note] InnoDB: Using Linux native AIO
2017-09-02T09:39:14.024519Z 0 [Note] InnoDB: Number of pools: 1
2017-09-02T09:39:14.026703Z 0 [Note] InnoDB: Using CPU crc32 instructions
2017-09-02T09:39:14.030169Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2017-09-02T09:39:14.030408Z 0 [ERROR] InnoDB: mmap(137428992 bytes) failed; errno 12
2017-09-02T09:39:14.030427Z 0 [ERROR] InnoDB: Cannot allocate memory for the buffer pool
2017-09-02T09:39:14.030436Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
2017-09-02T09:39:14.030445Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2017-09-02T09:39:14.030452Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2017-09-02T09:39:14.030459Z 0 [ERROR] Failed to initialize plugins.
2017-09-02T09:39:14.030463Z 0 [ERROR] Aborting

2017-09-02T09:39:14.030471Z 0 [Note] Binlog end
2017-09-02T09:39:14.030646Z 0 [Note] Shutting down plugin 'MyISAM'
2017-09-02T09:39:14.031520Z 0 [Note] /usr/sbin/mysqld: Shutdown complete

2017-09-02T09:39:44.129295Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)
2017-09-02T09:39:44.129461Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)
2017-09-02T09:39:44.301912Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2017-09-02T09:39:44.303568Z 0 [Note] /usr/sbin/mysqld (mysqld 5.7.19-0ubuntu0.16.04.1) starting as process 19593 ...
2017-09-02T09:39:44.307795Z 0 [Note] InnoDB: PUNCH HOLE support available
2017-09-02T09:39:44.307825Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2017-09-02T09:39:44.307830Z 0 [Note] InnoDB: Uses event mutexes
2017-09-02T09:39:44.307835Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2017-09-02T09:39:44.307841Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.8
2017-09-02T09:39:44.307847Z 0 [Note] InnoDB: Using Linux native AIO
2017-09-02T09:39:44.308101Z 0 [Note] InnoDB: Number of pools: 1
2017-09-02T09:39:44.308209Z 0 [Note] InnoDB: Using CPU crc32 instructions
2017-09-02T09:39:44.313028Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2017-09-02T09:39:44.313093Z 0 [ERROR] InnoDB: mmap(137428992 bytes) failed; errno 12
2017-09-02T09:39:44.313103Z 0 [ERROR] InnoDB: Cannot allocate memory for the buffer pool
2017-09-02T09:39:44.313109Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
2017-09-02T09:39:44.313120Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2017-09-02T09:39:44.313125Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2017-09-02T09:39:44.313131Z 0 [ERROR] Failed to initialize plugins.
2017-09-02T09:39:44.313135Z 0 [ERROR] Aborting

2017-09-02T09:39:44.313141Z 0 [Note] Binlog end
2017-09-02T09:39:44.313193Z 0 [Note] Shutting down plugin 'MyISAM'
2017-09-02T09:39:44.313586Z 0 [Note] /usr/sbin/mysqld: Shutdown complete

2017-09-02T09:40:14.374410Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)
2017-09-02T09:40:14.374483Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)
2017-09-02T09:40:14.551532Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2017-09-02T09:40:14.553509Z 0 [Note] /usr/sbin/mysqld (mysqld 5.7.19-0ubuntu0.16.04.1) starting as process 19673 ...
2017-09-02T09:40:14.558382Z 0 [Note] InnoDB: PUNCH HOLE support available
2017-09-02T09:40:14.558422Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2017-09-02T09:40:14.558426Z 0 [Note] InnoDB: Uses event mutexes
2017-09-02T09:40:14.558430Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2017-09-02T09:40:14.558434Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.8
2017-09-02T09:40:14.558438Z 0 [Note] InnoDB: Using Linux native AIO
2017-09-02T09:40:14.558726Z 0 [Note] InnoDB: Number of pools: 1
2017-09-02T09:40:14.558851Z 0 [Note] InnoDB: Using CPU crc32 instructions
2017-09-02T09:40:14.562723Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2017-09-02T09:40:14.562783Z 0 [ERROR] InnoDB: mmap(137428992 bytes) failed; errno 12
2017-09-02T09:40:14.562792Z 0 [ERROR] InnoDB: Cannot allocate memory for the buffer pool
2017-09-02T09:40:14.562797Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
2017-09-02T09:40:14.562806Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2017-09-02T09:40:14.562811Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2017-09-02T09:40:14.562816Z 0 [ERROR] Failed to initialize plugins.
2017-09-02T09:40:14.562820Z 0 [ERROR] Aborting

2017-09-02T09:40:14.562826Z 0 [Note] Binlog end
2017-09-02T09:40:14.562877Z 0 [Note] Shutting down plugin 'MyISAM'
2017-09-02T09:40:14.563280Z 0 [Note] /usr/sbin/mysqld: Shutdown complete

2017-09-02T09:40:44.626670Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)
2017-09-02T09:40:44.626733Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)
2017-09-02T09:40:44.797684Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2017-09-02T09:40:44.799634Z 0 [Note] /usr/sbin/mysqld (mysqld 5.7.19-0ubuntu0.16.04.1) starting as process 19753 ...
2017-09-02T09:40:44.804818Z 0 [Note] InnoDB: PUNCH HOLE support available
2017-09-02T09:40:44.804854Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2017-09-02T09:40:44.804864Z 0 [Note] InnoDB: Uses event mutexes
2017-09-02T09:40:44.804869Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2017-09-02T09:40:44.804875Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.8
2017-09-02T09:40:44.804879Z 0 [Note] InnoDB: Using Linux native AIO
2017-09-02T09:40:44.805268Z 0 [Note] InnoDB: Number of pools: 1
2017-09-02T09:40:44.805397Z 0 [Note] InnoDB: Using CPU crc32 instructions
2017-09-02T09:40:44.807051Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2017-09-02T09:40:44.807093Z 0 [ERROR] InnoDB: mmap(137428992 bytes) failed; errno 12
2017-09-02T09:40:44.807103Z 0 [ERROR] InnoDB: Cannot allocate memory for the buffer pool
2017-09-02T09:40:44.807108Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
2017-09-02T09:40:44.807114Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2017-09-02T09:40:44.807119Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2017-09-02T09:40:44.807124Z 0 [ERROR] Failed to initialize plugins.
2017-09-02T09:40:44.807127Z 0 [ERROR] Aborting

2017-09-02T09:40:44.807132Z 0 [Note] Binlog end
2017-09-02T09:40:44.807174Z 0 [Note] Shutting down plugin 'MyISAM'
2017-09-02T09:40:44.807500Z 0 [Note] /usr/sbin/mysqld: Shutdown complete

2017-09-02T09:41:14.869008Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)
2017-09-02T09:41:14.869074Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)
2017-09-02T09:41:15.049753Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2017-09-02T09:41:15.051733Z 0 [Note] /usr/sbin/mysqld (mysqld 5.7.19-0ubuntu0.16.04.1) starting as process 19836 ...
2017-09-02T09:41:15.056563Z 0 [Note] InnoDB: PUNCH HOLE support available
2017-09-02T09:41:15.056590Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2017-09-02T09:41:15.056594Z 0 [Note] InnoDB: Uses event mutexes
2017-09-02T09:41:15.056598Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2017-09-02T09:41:15.056603Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.8
2017-09-02T09:41:15.056606Z 0 [Note] InnoDB: Using Linux native AIO
2017-09-02T09:41:15.056843Z 0 [Note] InnoDB: Number of pools: 1
2017-09-02T09:41:15.056950Z 0 [Note] InnoDB: Using CPU crc32 instructions
2017-09-02T09:41:15.058449Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2017-09-02T09:41:15.058484Z 0 [ERROR] InnoDB: mmap(137428992 bytes) failed; errno 12
2017-09-02T09:41:15.058492Z 0 [ERROR] InnoDB: Cannot allocate memory for the buffer pool
2017-09-02T09:41:15.058497Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
2017-09-02T09:41:15.058502Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2017-09-02T09:41:15.058506Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2017-09-02T09:41:15.058511Z 0 [ERROR] Failed to initialize plugins.
2017-09-02T09:41:15.058513Z 0 [ERROR] Aborting

2017-09-02T09:41:15.058518Z 0 [Note] Binlog end
2017-09-02T09:41:15.058558Z 0 [Note] Shutting down plugin 'MyISAM'
2017-09-02T09:41:15.058853Z 0 [Note] /usr/sbin/mysqld: Shutdown complete

2017-09-02T09:41:45.118476Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)
2017-09-02T09:41:45.118552Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)
2017-09-02T09:41:45.282155Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2017-09-02T09:41:45.283844Z 0 [Note] /usr/sbin/mysqld (mysqld 5.7.19-0ubuntu0.16.04.1) starting as process 19916 ...
2017-09-02T09:41:45.288036Z 0 [Note] InnoDB: PUNCH HOLE support available
2017-09-02T09:41:45.288068Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2017-09-02T09:41:45.288074Z 0 [Note] InnoDB: Uses event mutexes
2017-09-02T09:41:45.288078Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2017-09-02T09:41:45.288082Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.8
2017-09-02T09:41:45.288085Z 0 [Note] InnoDB: Using Linux native AIO
2017-09-02T09:41:45.288319Z 0 [Note] InnoDB: Number of pools: 1
2017-09-02T09:41:45.288428Z 0 [Note] InnoDB: Using CPU crc32 instructions
2017-09-02T09:41:45.289984Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2017-09-02T09:41:45.290021Z 0 [ERROR] InnoDB: mmap(137428992 bytes) failed; errno 12
2017-09-02T09:41:45.290031Z 0 [ERROR] InnoDB: Cannot allocate memory for the buffer pool
2017-09-02T09:41:45.290036Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
2017-09-02T09:41:45.290042Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2017-09-02T09:41:45.290046Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2017-09-02T09:41:45.290051Z 0 [ERROR] Failed to initialize plugins.
2017-09-02T09:41:45.290054Z 0 [ERROR] Aborting

2017-09-02T09:41:45.290058Z 0 [Note] Binlog end
2017-09-02T09:41:45.290098Z 0 [Note] Shutting down plugin 'MyISAM'
2017-09-02T09:41:45.290405Z 0 [Note] /usr/sbin/mysqld: Shutdown complete

2017-09-02T09:42:15.621476Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)
2017-09-02T09:42:15.621527Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)
2017-09-02T09:42:15.790768Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2017-09-02T09:42:15.792452Z 0 [Note] /usr/sbin/mysqld (mysqld 5.7.19-0ubuntu0.16.04.1) starting as process 20034 ...
2017-09-02T09:42:15.796853Z 0 [Note] InnoDB: PUNCH HOLE support available
2017-09-02T09:42:15.796890Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2017-09-02T09:42:15.796894Z 0 [Note] InnoDB: Uses event mutexes
2017-09-02T09:42:15.796897Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2017-09-02T09:42:15.796900Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.8
2017-09-02T09:42:15.796903Z 0 [Note] InnoDB: Using Linux native AIO
2017-09-02T09:42:15.797142Z 0 [Note] InnoDB: Number of pools: 1
2017-09-02T09:42:15.797248Z 0 [Note] InnoDB: Using CPU crc32 instructions
2017-09-02T09:42:15.798873Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2017-09-02T09:42:15.798912Z 0 [ERROR] InnoDB: mmap(137428992 bytes) failed; errno 12
2017-09-02T09:42:15.798921Z 0 [ERROR] InnoDB: Cannot allocate memory for the buffer pool
2017-09-02T09:42:15.798926Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
2017-09-02T09:42:15.798946Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2017-09-02T09:42:15.798950Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2017-09-02T09:42:15.798954Z 0 [ERROR] Failed to initialize plugins.
2017-09-02T09:42:15.798958Z 0 [ERROR] Aborting

2017-09-02T09:42:15.798963Z 0 [Note] Binlog end
2017-09-02T09:42:15.799003Z 0 [Note] Shutting down plugin 'MyISAM'
2017-09-02T09:42:15.799324Z 0 [Note] /usr/sbin/mysqld: Shutdown complete