Another app is currently holding the yum lock; waiting for it to exit... The other application is:

yum 安装mysql时提示此错误

Another app is currently holding the yum lock; waiting for it to exit...

  The other application is: yum

错误原因：另一款应用程序目前占用 yum 锁，就是说有程序在使用yum

解决办法：

    查看谁占用的   ps aux|grep yum

    解除占用  kill -s 9 21679