Mysql The server quit without updating PID file exception Solution

Mysql The server quit without updating PID file exception solution after installing mysql, use Java code www.2cto.com/usr/local/mysql/bin/mysqld_safe & to start mysql, always in The dead state, then I went to suport_files to use mysql. server start,
The prompt "mysql The server quit without updating PID file" is displayed. I found it on the Internet. It turns out there is mysql.
A zombie process. Use ps-ef | grep mysql to find www.2cto.com Php code root 4507 1 0? 00:00:00/bin/sh/usr/local/mysql/bin/mysqld_safe-
-User = mysql 4793 4507 0? 00:00:03/usr/local/mysql/bin/mysqld -- basedir =
/Usr/local/mysql... so kill 4793 and start again. Ps: kill the process 4507 under the root is useless.