MySQL無法重啟、無法關閉、無法啟動、無法使用,如果是因為修改了主機名,可以這樣解決:關閉掉所有mysql程式,然後在啟動一些mysql!
有時候,只要執行如下MySQL初始化命令即可解決:/usr/local/mysql/bin/mysql_install_db–user=mysql
今天無事看到自己的主機名不對,於是改了一下,以便區分伺服器,那隻重啟mysql時出現下面錯誤:
MySQL manager or server PID file could not be found! [FAILED]
Starting MySQL.Manager of pid-file quit without updating
fi[FAILED]
怎麼會找不到PID呢,看下面:
[root@daban114.com ~]# ps aux | grep
mysql
mysql
16433 0.0 0.2
36636 5756
?
Sl
15:07 0:00
/usr/local/mysql/libexec/mysqld –basedir=/usr/local/mysql
–datadir=/usr/local/mysql/var –user=mysql
–log-error=/usr/local/mysql/var/hao9goAndSecondWeb.err
–pid-file=/usr/local/mysql/var/hao9goAndSecondWeb.pid –socket=/tmp/mysql.sock
–port=3306
root
16992 0.0
0.0
4020 704
pts/0
S+
15:11 0:00 grep mysql
原來PID還是原來主機名.pid,執行:
kill -9 <mysqlpid> 然後 service
mysql start 哈哈看到綠色的OK了,
[root@daban114 ~]# service mysql start
Starting
MySQL.
[ OK ]