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  • 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.

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  • 原文地址:https://www.cnblogs.com/sevck/p/8458272.html
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