在 /var/log/mariadb/ 下找到一个 mariadb.log.rpmsave 文件
170209  2:03:51 [Note] Event Scheduler: Purging the queue. 0 events
170209  2:03:51  InnoDB: Starting shutdown...
170209  2:03:52  InnoDB: Shutdown completed; log sequence number 147762982
170209  2:03:52 [Note] /usr/libexec/mysqld: Shutdown complete
170209 02:03:52 mysqld_safe mysqld from pid file /var/run/mariadb/mariadb.pid ended
170209 02:03:52 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
170209  2:03:52 [Note] /usr/libexec/mysqld (mysqld 5.5.52-MariaDB) starting as process 20626 ...
170209  2:03:52 InnoDB: The InnoDB memory heap is disabled
170209  2:03:52 InnoDB: Mutexes and rw_locks use GCC atomic builtins
170209  2:03:52 InnoDB: Compressed tables use zlib 1.2.7
170209  2:03:52 InnoDB: Using Linux native AIO
170209  2:03:52 InnoDB: Initializing buffer pool, size = 128.0M
170209  2:03:52 InnoDB: Completed initialization of buffer pool
170209  2:03:52 InnoDB: highest supported file format is Barracuda.
170209  2:03:52  InnoDB: Waiting for the background threads to start
170209  2:03:53 Percona XtraDB ( 
http://www.percona.com) 5.5.49-MariaDB-38.0 started; log sequence number 147762982
170209  2:03:53 [Note] Plugin 'FEEDBACK' is disabled.
170209  2:03:53 [Note] Server socket created on IP: '0.0.0.0'.
170209  2:03:53 [Note] Event Scheduler: Loaded 0 events
170209  2:03:53 [Note] /usr/libexec/mysqld: ready for connections.
Version: '5.5.52-MariaDB'  socket: '/var/lib/mysql/mysql.sock'  port: 3306  MariaDB Server
170209  2:10:30 [Note] /usr/libexec/mysqld: Normal shutdown
170209  2:10:30 [Note] Event Scheduler: Purging the queue. 0 events
170209  2:10:30  InnoDB: Starting shutdown...
170209  2:10:31  InnoDB: Shutdown completed; log sequence number 147779151
170209  2:10:31 [Note] /usr/libexec/mysqld: Shutdown complete
170209 02:10:31 mysqld_safe mysqld from pid file /var/run/mariadb/mariadb.pid ended