wordpresss数据库经常挂,日志如下,高手帮忙分析下是原因

科比不来it PHP开发工程师  2019-10-03 08:28:17
2019-10-01T18:54:52.552605Z 16356 [Note] Access denied for user 'root'@'localhost' (using password: YES)
2019-10-02T06:02:33.637325Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2019-10-02T06:02:33.637361Z 0 [Warning] 'NO_ZERO_DATE', 'NO_ZERO_IN_DATE' and 'ERROR_FOR_DIVISION_BY_ZERO' sql modes should be used with strict mode. They will be merged with strict mode in a future release.
2019-10-02T06:02:33.637364Z 0 [Warning] 'NO_AUTO_CREATE_USER' sql mode was not set.
2019-10-02T06:02:33.656545Z 0 [Note] /usr/sbin/mysqld (mysqld 5.7.21) starting as process 31881 ...
2019-10-02T06:02:33.713386Z 0 [Note] InnoDB: PUNCH HOLE support available
2019-10-02T06:02:33.713410Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2019-10-02T06:02:33.713415Z 0 [Note] InnoDB: Uses event mutexes
2019-10-02T06:02:33.713419Z 0 [Note] InnoDB: GCC builtin __sync_synchronize() is used for memory barrier
2019-10-02T06:02:33.713422Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.3
2019-10-02T06:02:33.713427Z 0 [Note] InnoDB: Using Linux native AIO
2019-10-02T06:02:33.713656Z 0 [Note] InnoDB: Number of pools: 1
2019-10-02T06:02:33.713761Z 0 [Note] InnoDB: Using CPU crc32 instructions
2019-10-02T06:02:33.715489Z 0 [Note] InnoDB: Initializing buffer pool, total size = 32M, instances = 1, chunk size = 32M
2019-10-02T06:02:33.717901Z 0 [Note] InnoDB: Completed initialization of buffer pool
2019-10-02T06:02:33.718762Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2019-10-02T06:02:33.771544Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2019-10-02T06:02:33.795611Z 0 [Note] InnoDB: Log scan progressed past the checkpoint lsn 83389935
2019-10-02T06:02:33.795642Z 0 [Note] InnoDB: Doing recovery: scanned up to log sequence number 83389944
2019-10-02T06:02:33.795649Z 0 [Note] InnoDB: Database was not shutdown normall
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yt_php 2019-10-04
业务量大吗? 线程数过多可能会造成mysql挂掉,mysql>show processlist;命令查看。
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