1 问题描述
使用yum安装Nginx的安装依赖组件：
yum -y install gcc gcc-c++ automake autoconf libtool make
但是，在执行过程中出现如下信息:
[root@localhost software]# yum -y install gcc gcc-c++ automake autoconf libtool make
Loaded plugins: fastestmirror, langpacks
Existing lock /var/run/yum.pid: another copy is running as pid 3289.
Another app is currently holding the yum lock; waiting for it to exit...
The other application is: PackageKit
Memory : 133 M RSS (551 MB VSZ)
Started: Wed Jun 16 09:22:32 2021 - 08:27 ago
State : Sleeping, pid: 3289
Another app is currently holding the yum lock; waiting for it to exit...
The other application is: PackageKit
Memory : 133 M RSS (551 MB VSZ)
Started: Wed Jun 16 09:22:32 2021 - 08:29 ago
State : Sleeping, pid: 3289
Another app is currently holding the yum lock; waiting for it to exit...
The other application is: PackageKit
Memory : 133 M RSS (551 MB VSZ)
Started: Wed Jun 16 09:22:32 2021 - 08:31 ago
State : Sleeping, pid: 3289
Another app is currently holding the yum lock; waiting for it to exit...
The other application is: PackageKit
Memory : 133 M RSS (551 MB VSZ)
Started: Wed Jun 16 09:22:32 2021 - 08:33 ago
State : Sleeping, pid: 3289
Another app is currently holding the yum lock; waiting for it to exit...
The other application is: PackageKit
Memory : 133 M RSS (551 MB VSZ)
Started: Wed Jun 16 09:22:32 2021 - 08:35 ago
State : Sleeping, pid: 3289
Another app is currently holding the yum lock; waiting for it to exit...
The other application is: PackageKit
Memory : 133 M RSS (551 MB VSZ)
Started: Wed Jun 16 09:22:32 2021 - 08:37 ago
State : Sleeping, pid: 3289
Another app is currently holding the yum lock; waiting for it to exit...
The other application is: PackageKit
Memory : 133 M RSS (551 MB VSZ)
Started: Wed Jun 16 09:22:32 2021 - 08:39 ago
...
2 现象分析
[root@localhost software]# netstat -lntp | grep -i 3289
[root@localhost software]# ll /proc/3289 | grep -i CWD
lrwxrwxrwx. 1 root root 0 Jun 16 09:34 cwd -> /
[root@localhost software]# ps -ef | grep -i 3289
root 3289 2040 2 09:22 ? 00:00:17 /usr/bin/python /usr/share/PackageKit/helpers/yum/yumBackend.py get-updates none
root 3721 3289 3 09:33 ? 00:00:02 /usr/bin/python /usr/libexec/urlgrabber-ext-down
root 3736 3508 0 09:34 pts/1 00:00:00 grep --color=auto -i 3289
3 解决方法
方法1: kill掉该yum进程
[root@localhost software]# kill -9 <pid>
方法2：通过强制关掉yum进程
rm -f /var/run/yum.pid
然后，就可以重新使用yum了。
X 参考文献
yum提示Another app is currently holding the yum lock; waiting for it to exit... - CSDN
