【发布时间】：2020-01-28 07:29:54
【问题描述】：
我的 MySQL 数据库有问题。
我有一个程序，每天的流量从轻度到重度。它以前运行良好，但在过去的几天里，它一直在关闭，服务器在几秒钟后重新启动它，或者最糟糕的是我必须手动重新启动它。我不明白的是，它如何以及为什么会不断关闭。它在 MySQL 日志中显示此注释：
2020-01-28T06:02:00.157339Z 0 [Note] Giving 0 client threads a chance to die gracefully
2020-01-28T06:02:00.157379Z 0 [Note] Shutting down slave threads
2020-01-28T06:02:00.157385Z 0 [Note] Forcefully disconnecting 0 remaining clients
2020-01-28T06:02:00.157393Z 0 [Note] Event Scheduler: Purging the queue. 0 events
2020-01-28T06:02:00.157442Z 0 [Note] Binlog end
2020-01-28T06:02:00.162900Z 0 [Note] Shutting down plugin 'INNODB_SYS_TABLES'
2020-01-28T06:02:00.162903Z 0 [Note] Shutting down plugin 'INNODB_FT_INDEX_TABLE'
2020-01-28T06:02:00.162906Z 0 [Note] Shutting down plugin 'INNODB_FT_INDEX_CACHE'
2020-01-28T06:02:00.162910Z 0 [Note] Shutting down plugin 'INNODB_FT_CONFIG'
2020-01-28T06:02:00.162913Z 0 [Note] Shutting down plugin 'INNODB_FT_BEING_DELETED'
2020-01-28T06:02:00.162916Z 0 [Note] Shutting down plugin 'INNODB_FT_DELETED'
2020-01-28T06:02:00.162920Z 0 [Note] Shutting down plugin 'INNODB_FT_DEFAULT_STOPWORD'
2020-01-28T06:02:00.162923Z 0 [Note] Shutting down plugin 'INNODB_METRICS'
2020-01-28T06:02:00.162927Z 0 [Note] Shutting down plugin 'INNODB_TEMP_TABLE_INFO'
2020-01-28T06:02:00.162930Z 0 [Note] Shutting down plugin 'INNODB_BUFFER_POOL_STATS'
2020-01-28T06:02:00.162933Z 0 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE_LRU'
2020-01-28T06:02:00.162937Z 0 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE'
2020-01-28T06:02:00.162940Z 0 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX_RESET'
2020-01-28T06:02:00.162943Z 0 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX'
2020-01-28T06:02:00.162947Z 0 [Note] Shutting down plugin 'INNODB_CMPMEM_RESET'
2020-01-28T06:02:00.162950Z 0 [Note] Shutting down plugin 'INNODB_CMPMEM'
2020-01-28T06:02:00.162954Z 0 [Note] Shutting down plugin 'INNODB_CMP_RESET'
2020-01-28T06:02:00.162957Z 0 [Note] Shutting down plugin 'INNODB_CMP'
2020-01-28T06:02:00.162960Z 0 [Note] Shutting down plugin 'INNODB_LOCK_WAITS'
2020-01-28T06:02:00.162964Z 0 [Note] Shutting down plugin 'INNODB_LOCKS'
2020-01-28T06:02:00.162967Z 0 [Note] Shutting down plugin 'INNODB_TRX'
2020-01-28T06:02:00.162970Z 0 [Note] Shutting down plugin 'InnoDB'
2020-01-28T06:02:00.163030Z 0 [Note] InnoDB: FTS optimize thread exiting.
2020-01-28T06:02:00.163125Z 0 [Note] InnoDB: Starting shutdown...
2020-01-28T06:02:00.263407Z 0 [Note] InnoDB: Dumping buffer pool(s) to /var/lib/mysql/ib_buffer_pool
2020-01-28T06:02:00.264206Z 0 [Note] InnoDB: Buffer pool(s) dump completed at 200128 6:02:00
2020-01-28T06:02:01.380815Z 0 [Note] InnoDB: Shutdown completed; log sequence number 564620850
2020-01-28T06:02:01.382628Z 0 [Note] InnoDB: Removed temporary tablespace data file: "ibtmp1"
2020-01-28T06:02:01.382643Z 0 [Note] Shutting down plugin 'MEMORY'
2020-01-28T06:02:01.382649Z 0 [Note] Shutting down plugin 'CSV'
2020-01-28T06:02:01.382654Z 0 [Note] Shutting down plugin 'sha256_password'
2020-01-28T06:02:01.382657Z 0 [Note] Shutting down plugin 'mysql_native_password'
2020-01-28T06:02:01.382833Z 0 [Note] Shutting down plugin 'binlog'
2020-01-28T06:02:01.383206Z 0 [Note] /usr/sbin/mysqld: Shutdown complete
全球状态
https://drive.google.com/file/d/1S9kTDaMlNMenWMbGg_mByHQnG-eYRYap/view
全局变量
https://drive.google.com/file/d/1Inqp8xv3NYmEJY9x8_QmasNCp4VZUCbF/view
附加信息
目前的内存： 563M/15.7G
说明： Ubuntu 18.04.1 LTS
MySQL 服务器版本： 5.7.29-0ubuntu0.18.04.1 (Ubuntu)
我尝试在网上搜索，但遗憾的是没有找到解决方案。我希望有人可以帮助我。如果我错过了一些可能有助于解决此问题的信息，请告诉我。谢谢？？？？
【问题讨论】：
-
只是一个客人，但如果您在日志中没有看到任何错误，那么这看起来像是受控关闭，所以应该有一个脚本在执行
service stop mysql或者甚至可能有人在运行shutdown sql命令。 -
@MartinWickman 谢谢你，我遇到了和 OP 一样的问题，你的回答救了我，我有一个 cron 工作检查 mysql 服务器的状态（一年多没有问题），它会重新启动如果服务没有运行，但由于某种原因它停止正常工作并每 5 分钟重新启动一次 mysql。