mysql 报错 The server quit without updating PID file (/mysql/xtrabackup.pid).

Starting MySQL. ERROR! The server quit without updating PID file (/mysql/xtrabackup.pid).

3个回答

mysql版本bug

出现问题的可能性
1、可能是/opt/mysql/data/数据目录mysql用户没有权限(修改数据目录的权限)
解决方法 :给予权限,执行 "chown -R mysql.mysql /opt/mysql/data" 然后重新启动mysqld

2、可能进程里已经存在mysql进程
解决方法:用命令“ps -ef|grep mysqld”查看是否有mysqld进程,如果有使用“kill -9 进程号”杀死,然后重新启动mysqld!

3、可能是第二次在机器上安装mysql,有残余数据影响了服务的启动。
解决方法:去mysql的二进制日志目录看看,如果存在mysql-binlog.index,就赶快把它删除掉吧
4、mysql在启动时没有指定配置文件时会使用/etc/my.cnf配置文件,请打开这个文件查看在[mysqld]下有没有指定数据目录(datadir)。
解决方法:请在[mysqld]下设置这一行:datadir = /opt/mysql/data

5、skip-federated字段问题
解决方法:检查一下/etc/my.cnf文件中有没有没被注释掉的skip-federated字段,如果有就立即注释掉吧。

6、错误日志目录不存在
解决方法:使用“chown” “chmod”命令赋予mysql所有者及权限

7、selinux惹的祸,如果是centos系统,默认会开启selinux

1解决方法:先临时改为警告模式:[root@www php]# setenforce 0
2然后打开/etc/sysconfig/selinux,把SELINUX=enforcing改为SELINUX=disabled

8、启动失败注意检查数据目录的权限,要与mysql程序运行用户权限一致。
1[root@db01 mysql]# chown -R mysql.mysql ../mysql
  最好是整个mysql程序目录都授权予mysql用户。

就是如果你做了3306的进程而没有关掉,
那你看看/etc/my.cnf 有没有重名,比如变成这样:/etc/my.cnf.bat
有就 mv /etc/my.cnf.bat /etc/my.cnf
接着重启一下就好了

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关于selenium/standalone-chrome的启动报错Unable to determine type from: <. Last 1 characters read: <
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