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标题: 安装数据库建立yum缓存时报错 [打印本页]

作者: miss_puff 时间: 2017-6-27 17:25
标题: 安装数据库建立yum缓存时报错
[root@rac02 Packages]# yum makecache
Loaded plugins: aliases, changelog, downloadonly, presto, security, tmprepo, verify, versionlock
Existing lock /var/run/yum.pid: another copy is running as pid 2521.
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...
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...
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...
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...
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...
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...
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...
^C

Exiting on user cancel.

出现这种情况是由于yum只能支持一个例程运行，所以如果有一个例程已经在运行，其他的必须等待该进程退出释放lock。出现这种情况时，可以用以下命令来恢复：
[root@rac02 Packages]# rm -f /var/run/yum.pid

再次建立缓存成功
[root@rac02 Packages]# yum makecache
Loaded plugins: product-id, refresh-packagekit, security, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
mnt                                                                                        | 3.9 kB    00:00 ...
mnt/group_gz                                                                               | 204 kB    00:00 ...
mnt/filelists_db                                                                            | 3.1 MB    00:00 ...
mnt/primary_db                                                                               | 2.5 MB    00:00 ...
mnt/other_db                                                                               | 1.2 MB    00:00 ...
Metadata Cache Created

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