mysql 断电 启动不了 start: Job failed to start

公司内部服务器,突然断电,造成无法启动的解决办法

把my.cnf中配置的datadir路径下的ib_logfile* (比如ib_logfile0, lb_logfile1....)文件移到另外一个目录中, 备用

然后再/etc/init.d/mysql start,或者其它启动方法 /usr/bin/mysqld_safe & 等启动,

检查是否正确启动!

以下是检查过程------------------------------############################################

root@1399cx:/home/gm# /etc/init.d/mysql start
Rather than invoking init scripts through /etc/init.d, use the service(8)
utility, e.g. service mysql start

Since the script you are attempting to invoke has been converted to an
Upstart job, you may also use the start(8) utility, e.g. start mysql
start: Job failed to start
root@1399cx:/home/gm# /usr/bin/mysqld_safe -uroot &
[1] 4236
root@1399cx:/home/gm# 140303 17:02:53 mysqld_safe Logging to syslog.-------------------错误日志记录到此处.

输入命令: locate syslog

得知syslog在/var/log/目录下,即/var/log/syslog

输入命令 : tail -n 40 /var/log/syslog

显示以下错误日志

--------------------

 Error: log file ./ib_logfile0 is of different size 0 5242880 bytes----------------------google了一下 这个错误,

得知,把日志文件移动其它目录下,也许可以正常启动mysql

---------------------------------

立马移动日志

我的日志文件在/home/mysql_dir下

输入命令: cd /home/mysql_dir

输入命令: mv lb_logfile*   /home/bakdir  #备份日志文件到其它目录

输入命令: /etc/init.d/mysql start   #启动mysql

--------------------------#################################################------------

稍等片刻,mysql终于启动了....好兴奋....