1. 程式人生 > >mysql啟動失敗--Job for mysqld.service failed because the control process exited

mysql啟動失敗--Job for mysqld.service failed because the control process exited

1.centos7啟動報錯

Starting mysqld (via systemctl):  Job for mysqld.service failed because the control process exited with error code. 

See "systemctl status mysqld.service" and "journalctl -xe" for details.

2. more /var/log/mysqld.log 檢視日誌

2018-09-13T02:45:55.234888Z 0 [ERROR] /usr/local/mysql/bin/mysqld: Can't create/write to file 

'/var/run/mysqld/mysqld.pid' (Errcode: 2 - No such file
 or directory)
2018-09-13T02:45:55.234901Z 0 [ERROR] Can't start server: can't create PID file: No such file or directory
[
[email protected]
local]# more /var/log/mysqld.log

缺少目錄檔案

# mkdir -p  /var/run/mysqld  ,該檔案會建立一個mysqld.pid

3.啟動依然報錯,許可權問題

2018-09-13T02:51:20.206992Z 0 [ERROR] /usr/local/mysql/bin/mysqld: Can't create/write to file '/var/run/mysqld/mysqld.pid' (Errcode: 13 - Permission 
denied)
2018-09-13T02:51:20.207004Z 0 [ERROR] Can't start server: can't create PID file: Permission denied

4. chown mysql.mysql /var/run/mysqld/