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  • MySQL错误修复:Table xx is marked as crashed and last (automatic?) repair failed

    问题一 Table xx is marked as crashed and last (automatic?) repair failed

    有开发找到我,说数据库坏了,连不上数据库,看了下 MySQL 的错误日志,报错如下:

    Error: Table './db_name/table_name' is marked as crashed and last (automatic?) repair failed
    

    修复

    1、先停止 MySQL:service mysqld stop
    2、进入到 MySQL 数据库的文件存放目录,比如 cd /data/mysql_data/xx_db
    然后执行如下命令:

    myisamchk --safe-recover -f -r *.MYI
    

    执行完成后,为了保险起见,我们要将文件的权限改回 MySQL 的运行账号(自行查看),比如 mysql:

    chown -R mysql:mysql .
    

    3、启动 MySQL:service mysqld start
    4、最后,执行再次自动修复优化命令即可解决:

    mysqlcheck --auto-repair --optimize --all-databases -p密码
    

    问题二 /usr/local/mysql/bin/mysqld does not exist or is not executable.

    ]# /data/wapage/hhzk/mserver/mysql5713/bin/mysqld_safe  --defaults-file=/etc/my.cnf &
    [1] 24527
    ]# 2020-11-23T10:36:45.803151Z mysqld_safe Logging to '/data/wapage/hhzk/mserver/mysql5713/data/qd01-tech2-rec-build001.ps.easou.com.err'.
    2020-11-23T10:36:45.809116Z mysqld_safe The file /usr/local/mysql/bin/mysqld
    does not exist or is not executable. Please cd to the mysql installation
    directory and restart this script from there as follows:
    ./bin/mysqld_safe&
    See http://dev.mysql.com/doc/mysql/en/mysqld-safe.html for more information
    
    [1]+  Exit 1                  /data/wapage/hhzk/mserver/mysql5713/bin/mysqld_safe --defaults-file=/etc/my.cnf
    

    说明:mysqld_safe启动脚本默认的从/usr/local/mysql目录中读取另外一个启动脚本mysqld,因为我的安装目录为/data/wapage/hhzk/mserver/mysql5713。所以找不到相关文件。可以从两个方面解决。
    方法一:在/usr/local/mysql创建链接文件

    mkdir -p /usr/local/mysql/bin
    ln -s /data/wapage/hhzk/mserver/mysql5713/bin/mysqld /usr/local/mysql/bin/mysqld
    

    方法二:将mysqld_safe中的所有/usr/local/mysql目录改为自己实际的安装目录

    sed -i 's#/usr/local/mysql#/data/wapage/hhzk/mserver/mysql5713#g'  /data/wapage/hhzk/mserver/mysql5713/bin/mysqld_safe
    
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  • 原文地址:https://www.cnblogs.com/scofield666/p/14028647.html
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