MySql 错误！服务器退出而不更新PID文件
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MySql ERROR! The server quit without updating PID file
提问by JFQue3316
I inherited a computer that previously had MySql server installed and then uninstalled (apparently, it ran fine before the uninstall). I am in Database class, so I tried to install it again and now I get the error:
我继承了一台以前安装了 MySql 服务器然后卸载的计算机（显然，它在卸载之前运行良好）。我在数据库类中，所以我尝试再次安装它，现在出现错误：
Starting MySQL . ERROR! The server quit without updating PID file (/usr/local/mysql/data/Computer.local.pid).
启动 MySQL。错误！服务器退出而不更新 PID 文件 (/usr/local/mysql/data/Computer.local.pid)。
I looked online and saw this error happened to others, but either a)I couldn't figure out how to do the fix or b)the fix didnt work for me.
我在网上查看并看到其他人发生了此错误，但是 a) 我不知道如何进行修复或 b) 修复对我不起作用。
I tried(from http://coolestguidesontheplanet.com/mysql-error-server-quit-without-updating-pid-file/):
我试过（来自http://coolestguidesontheplanet.com/mysql-error-server-quit-without-updating-pid-file/）：
Computer:/ computer$ /usr/local/mysql/support-files/mysql.server restart
计算机：/ computer$ /usr/local/mysql/support-files/mysql.server restart
And I get this error: ERROR! MySQL server PID file could not be found! Starting MySQL
我收到此错误： 错误！找不到 MySQL 服务器 PID 文件！启动 MySQL
. ERROR! The server quit without updating PID file (/usr/local/mysql/data/Computer.local.pid).
. 错误！服务器退出而不更新 PID 文件 (/usr/local/mysql/data/Computer.local.pid)。
I am not sure what they are telling me to do here:
我不确定他们要我在这里做什么：
Remove /etc/my.cnf or just back it up for now and restart: sudo mv /etc/my.cnf /etc/my.cnf.bak
删除 /etc/my.cnf 或暂时备份并重新启动： sudo mv /etc/my.cnf /etc/my.cnf.bak
because I get this error when I type:
因为我在键入时收到此错误：
Computer:/ computer$ cd /usr/my.cnf
计算机：/ computer$ cd /usr/my.cnf
-bash: cd: /usr/my.cnf: No such file or directory
-bash: cd: /usr/my.cnf: 没有那个文件或目录
I also see from: mysql ERROR! The server quit without updating PID file?That there are error logs and the my.cnf file, but I am not sure to access them.
我也看到了：mysql ERROR！服务器退出而不更新PID文件？有错误日志和 my.cnf 文件，但我不确定是否可以访问它们。
The MySql I downloaded: mysql-5.7.10-osx10.9-x86_64.dmg
我下载的MySql：mysql-5.7.10-osx10.9-x86_64.dmg
I am on a mac version 10.7.5
我在 Mac 版本 10.7.5
Thanks!
谢谢！
回答by Big Data DBA
Mostly this is a permission issue
这主要是一个权限问题
Step1:Check the error file first.
Step1：首先检查错误文件。
tail -f /usr/local/mysql/data/*.err
Step2:Do a complete shut down or kill the process. Confirm that no mysql process is running
步骤2：完全关闭或终止进程。确认没有mysql进程在运行
mysqladmin -uroot shutdown
sudo killall mysqld
ps -ef | grep mysql
Step3:Give permisiions
Step3：授予权限
sudo chown -RL root:mysql /usr/local/mysql
sudo chown -RL mysql:mysql /usr/local/mysql/data
chmod -R 755 /usr/local/mysql/data
Step4:Start mysql
第四步：启动mysql
sudo mysql.server start
