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

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: yum
    Memory :  26 M RSS (1.4 GB VSZ)
    Started: Tue Oct 24 10:42:45 2023 - 11:54 ago
    State  : Traced/Stopped, pid: 87965
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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
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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
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yum.pid文件会重新自动生成，然后yum就恢复正常了