[There are unfinished transactions remaining.]【使用本地YUM源安装服务报错解决方法】

[root@controller ~]# yum install -y yum-utils
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Resolving Dependencies
There are unfinished transactions remaining. You might consider running yum-complete-transaction, or "yum-complete-transaction --cleanup-only" and "yum history redo last", first to finish them. If those don't work you'll have to try removing/installing packages by hand (maybe package-cleanup can help).
The program yum-complete-transaction is found in the yum-utils package.
--> Running transaction check
---> Package yum-utils.noarch 0:1.1.31-50.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

=======================================================================================================================================
 Package                        Arch                        Version                               Repository                      Size
=======================================================================================================================================
Installing:
 yum-utils                      noarch                      1.1.31-50.el7                         openstack                      121 k

Transaction Summary
=======================================================================================================================================
Install  1 Package

Total download size: 121 k
Installed size: 337 k
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : yum-utils-1.1.31-50.el7.noarch                                                                                      1/1 
  Verifying  : yum-utils-1.1.31-50.el7.noarch                                                                                      1/1 

Installed:
  yum-utils.noarch 0:1.1.31-50.el7                                                                                                     

Complete!
[root@controller ~]# yum clean all
Loaded plugins: fastestmirror
Cleaning repos: centos openstack
Cleaning up everything
Maybe you want: rm -rf /var/cache/yum, to also free up space taken by orphaned data from disabled or removed repos
Cleaning up list of fastest mirrors

[root@controller ~]# yum-complete-transaction --cleanup-only
Loaded plugins: fastestmirror
Determining fastest mirrors
centos                                                                                                          | 3.6 kB  00:00:00     
openstack                                                                                                       | 2.9 kB  00:00:00     
(1/3): centos/group_gz                                                                                          | 166 kB  00:00:00     
(2/3): openstack/primary_db                                                                                     | 1.4 MB  00:00:00     
(3/3): centos/primary_db                                                                                        | 3.1 MB  00:00:00     
Cleaning up unfinished transaction journals
Cleaning up 2020-11-10.15:55.58
[root@controller ~]#