小记一次mysql启动失败没有日志的处理

本来mysql好的,之前清理了一次tmp下的东西,mysql在查询的时候提示:

Can't create/write to file '/tmp/ib0n3frL

然后停止启动:

[root@sevck_linux mysql]# service mysqld start
MySQL Daemon failed to start.
Starting mysqld: [FAILED]

启动失败了,看一下日志,发现配置的时候没添加日志配置

查找my.cnf,在[mysqld]下添加log-error=/var/log/mysql/mysql-error.log

配置mysql的错误日志,mysql目录自行设置,其中记住一点,chown -R mysql:mysql /tmp/mysql

赋予mysql目录权限,因为我是root, mysql运行权限为mysql,没有权限

再启动mysql尝试:

180222 10:45:28 InnoDB: Mutexes and rw_locks use GCC atomic builtins
180222 10:45:28 InnoDB: Compressed tables use zlib 1.2.3
180222 10:45:28 InnoDB: Using Linux native AIO
^G/usr/libexec/mysqld: Can't create/write to file '/tmp/mysql_data/ibAGn543' (Errcode: 13)
180222 10:45:28  InnoDB: Error: unable to create temporary file; errno: 13
180222 10:45:28 [ERROR] Plugin 'InnoDB' init function returned error.
180222 10:45:28 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
180222 10:45:28 [ERROR] Unknown/unsupported storage engine: InnoDB
180222 10:45:28 [ERROR] Aborting

180222 10:45:28 [Note] /usr/libexec/mysqld: Shutdown complete

原来是Can't create/write to file,那么就好解决了,看看mysql_data目录是否存在。

chmod  -R 777 /tmp

赋予写的权限,启动mysql:

root@sevck_linux mysql]# service mysqld start
Starting mysqld:                                           [  OK  ]

 

just do it.

posted @ 2018-02-22 10:57  sevck  阅读(14311)  评论(0编辑  收藏  举报