Yum appears another app is currently holding the Yum Lock solution

In the CentOS system, yum installs the package with the following troubleshooting methods:

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/var/run/yum.pid I opened it, just one count, the other might be that the system is running automatically, so Yum is locked out.
You can do this by executing
Rm-rf/var/run/yum.pid
To forcibly unlock, and then your Yum will be ready to run.

This article is from the "Little Rookie" blog, please be sure to keep this source http://baishuchao.blog.51cto.com/12918589/1932170

Yum appears another app is currently holding the Yum Lock solution