Solution to yum locking in CentOS

Solution to yum locking in CentOS

When you run the yum command, the message "Another app is currently holding the yum lock; waiting for it to exit..." is displayed. This is because yum is locked and cannot be used.

For error information, refer:

Another app is currently holding the yum lock; waiting for it to exit... the other application is: yum Memory: 40 m rss (50 mb vsz) Started: Thu Jul 19 01:59:25 2012-0:45 ago State: Uninteruptable, pid: 903

Solution:

Rm-rf/var/run/yum. pid

Run the preceding command in SSH to delete yum. pid and unlock it.