MySQL 每 10 分钟 自动 Normal shutdown

非常确定没有 crontab 任务，实在找不到什么原因 log ：

Version: '5.6.30-log' socket: '/var/lib/mysql/mysql.sock' port: 3306 MySQL Community Server (GPL) 2017-04-12 21:23:59 29062 [Note] /usr/sbin/mysqld: Normal shutdown 2017-04-12 21:23:59 29062 [Note] Giving 0 client threads a chance to die gracefully 2017-04-12 21:23:59 29062 [Note] Event Scheduler: Purging the queue. 0 events 2017-04-12 21:23:59 29062 [Note] Shutting down slave threads 2017-04-12 21:23:59 29062 [Note] Forcefully disconnecting 0 remaining clients 2017-04-12 21:23:59 29062 [Note] Binlog end 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'partition' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'PERFORMANCE_SCHEMA' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_SYS_DATAFILES' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_SYS_TABLESPACES' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN_COLS' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_SYS_FIELDS' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_SYS_COLUMNS' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_SYS_INDEXES' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_SYS_TABLESTATS' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_SYS_TABLES' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_FT_INDEX_TABLE' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_FT_INDEX_CACHE' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_FT_CONFIG' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_FT_BEING_DELETED' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_FT_DELETED' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_FT_DEFAULT_STOPWORD' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_METRICS' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_BUFFER_POOL_STATS' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE_LRU' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX_RESET' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_CMPMEM_RESET' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_CMPMEM' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_CMP_RESET' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_CMP' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_LOCK_WAITS' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_LOCKS' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'INNODB_TRX' 2017-04-12 21:23:59 29062 [Note] Shutting down plugin 'InnoDB' 2017-04-12 21:23:59 29062 [Note] InnoDB: FTS optimize thread exiting. 2017-04-12 21:23:59 29062 [Note] InnoDB: Starting shutdown... 2017-04-12 21:24:01 29062 [Note] InnoDB: Shutdown completed; log sequence number 1626143 2017-04-12 21:24:01 29062 [Note] Shutting down plugin 'BLACKHOLE' 2017-04-12 21:24:01 29062 [Note] Shutting down plugin 'ARCHIVE' 2017-04-12 21:24:01 29062 [Note] Shutting down plugin 'MRG_MYISAM' 2017-04-12 21:24:01 29062 [Note] Shutting down plugin 'MyISAM' 2017-04-12 21:24:01 29062 [Note] Shutting down plugin 'MEMORY' 2017-04-12 21:24:01 29062 [Note] Shutting down plugin 'CSV' 2017-04-12 21:24:01 29062 [Note] Shutting down plugin 'sha256_password' 2017-04-12 21:24:01 29062 [Note] Shutting down plugin 'mysql_old_password' 2017-04-12 21:24:01 29062 [Note] Shutting down plugin 'mysql_native_password' 2017-04-12 21:24:01 29062 [Note] Shutting down plugin 'binlog' 2017-04-12 21:24:01 29062 [Note] /usr/sbin/mysqld: Shutdown complete 170412 21:24:01 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended 170412 21:24:01 mysqld_safe Starting mysqld daemon with databases from /backups/mysql 2017-04-12 21:24:01 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2017-04-12 21:24:01 0 [Note] /usr/sbin/mysqld (mysqld 5.6.30-log) starting as process 31712 ... 2017-04-12 21:24:01 31712 [Warning] Buffered warning: Changed limits: max_open_files: 1024 (requested 5000) 2017-04-12 21:24:01 31712 [Warning] Buffered warning: Changed limits: table_open_cache: 431 (requested 2000) 2017-04-12 21:24:01 31712 [Note] Plugin 'FEDERATED' is disabled. 2017-04-12 21:24:01 31712 [Note] InnoDB: Using atomics to ref count buffer pool pages 2017-04-12 21:24:01 31712 [Note] InnoDB: The InnoDB memory heap is disabled 2017-04-12 21:24:01 31712 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins 2017-04-12 21:24:01 31712 [Note] InnoDB: Memory barrier is not used 2017-04-12 21:24:01 31712 [Note] InnoDB: Compressed tables use zlib 1.2.3 2017-04-12 21:24:01 31712 [Note] InnoDB: Using Linux native AIO 2017-04-12 21:24:01 31712 [Note] InnoDB: Not using CPU crc32 istructions 2017-04-12 21:24:01 31712 [Note] InnoDB: Initializing buffer pool, size = 128.0M 2017-04-12 21:24:01 31712 [Note] InnoDB: Completed initialization of buffer pool 2017-04-12 21:24:01 31712 [Note] InnoDB: Highest supported file format is Barracuda. 2017-04-12 21:24:01 31712 [Note] InnoDB: 128 rollback segment(s) are active. 2017-04-12 21:24:01 31712 [Note] InnoDB: Waiting for purge to start 2017-04-12 21:24:01 31712 [Note] InnoDB: 5.6.30 started; log sequence number 1626143 2017-04-12 21:24:01 31712 [Note] Server hostname (bind-address): '*'; port: 3306 2017-04-12 21:24:01 31712 [Note] IPv6 is available. 2017-04-12 21:24:01 31712 [Note] - '::' resolves to '::'; 2017-04-12 21:24:01 31712 [Note] Server socket created on IP: '::'. 2017-04-12 21:24:01 31712 [Note] Event Scheduler: Loaded 0 events 2017-04-12 21:24:01 31712 [Note] /usr/sbin/mysqld: ready for connections. Version: '5.6.30-log' socket: '/var/lib/mysql/mysql.sock' port: 3306 MySQL Community Server (GPL) 2017-04-12 21:27:15 31712 [Warning] IP address '119.23.140.203' could not be resolved: Name or service not known