关于mysql重启动失败的疑问?

[root@localhost root]# rpm -qa |grep mysql
mysql-bench-3.23.58-4
libdbi-dbd-mysql-0.6.5-7
mysql-devel-3.23.58-4
mysql-3.23.58-4
mysql-server-3.23.58-4
[root@localhost root]# service mysqld status
mysqld (pid 3464) is running...
[root@localhost root]# service mysqld restart
Stopping MySQL: [ OK ]
Timeout error occurred trying to start MySQL Daemon.
Starting MySQL: [FAILED]
[root@localhost root]#
上面内容为系统显示,我不明白的是,为什么mysql daemon在系统启动的时候也显示失败,但查看他状态却是运行呢?还有就是为什么重启动还显示失败呢?

而且我用mysqladmin -u root password 'mypassword'不能更改mysql的root密码了。请问应该如何解决,刚刚起步,望各位兄弟指教。