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

报错详情：

[root@localhost debug]# sudo yum makecache
Loaded plugins: fastestmirror
Existing lock /var/run/yum.pid: another copy is running as pid 87965.
Another app is currently holding the yum lock; waiting for it to exit...The other application is: yumMemory :  26 M RSS (1.4 GB VSZ)Started: Tue Oct 24 10:42:45 2023 - 11:54 agoState  : Traced/Stopped, pid: 87965

问题分析：

Another app is currently holding the yum lock. 意为另外随侵一个应用正英篇泛在锁住进程锁。waiting for it to exit… 意为该应用等待解锁。此外，如图可以得知，yum的pid号为87965。

解决方案1：

强制关闭进程，出现该进程无法被终止的情况，进而采用kill命令

[root@localhost debug]# kill -9 87965

执行kill之后yum会自动重新运行，然后yum就恢复正常了

解决方案2：

删除pid文件

[root@localhost debug]# rm -f /var/run/yum.pid

yum.pid文件会重新自动生成，然后yum就恢复正常了