How to Resolve “Warning: RPMDB altered outside of yum” CentOS 7

The message “Warning: RPMDB altered outside of yum” displayed when the yum command is not finished completely or interrupted while running any yum transaction and rpmdb does not completed the rpm database editing.
 The warning message look like the below output:

[root@linuxcnf ~]# yum remove tigervnc-server tigervnc Loaded plugins: fastestmirror, langpacks ………………………. Installed size: 1.2 M Is this ok [y/N]: y Downloading packages: Running transaction check Running transaction test Transaction test succeeded Running transaction Warning: RPMDB altered outside of yum.   Erasing    : tigervnc-1.8.0-17.el7.x86_64                                                                                                                         1/2   Erasing    : tigervnc-server-1.8.0-17.el7.x86_64                                                                                                                  2/2   Verifying  : tigervnc-server-1.8.0-17.el7.x86_64                                                                                                                  1/2   Verifying  : tigervnc-1.8.0-17.el7.x86_64                                                                                                                         2/2 Removed:   tigervnc.x86_64 0:1.8.0-17.el7                                                  tigervnc-server.x86_64 0:1.8.0-17.el7 Complete! [root@linuxcnf ~]#

Solution 1. yum clean: “yum clean all” command can resolve the issue:

[root@linuxcnf ~]# yum clean all Loaded plugins: fastestmirror, langpacks Cleaning repos: base epel extras updates Cleaning up list of fastest mirrors Other repos take up 3.9 M of disk space (use --verbose for details) [root@linuxcnf ~]#/

Now install or remove any package using yum command to check the issue.

Solution 2. yum history sync and clean: If the issue is still persist run the following command to sync the yum history:

[root@linuxcnf ~]# yum history sync Loaded plugins: fastestmirror, langpacks Syncing rpm/yum DB data for: GConf2-3.2.6-8.el7.x86_64 ... Done. Syncing rpm/yum DB data for: GeoIP-1.5.0-13.el7.x86_64 ... Done. Syncing rpm/yum DB data for: ModemManager-1.6.10-3.el7_6.x86_64 ... Done. ………………………… Syncing rpm/yum DB data for: yum-utils-1.1.31-52.el7.noarch ... Done. Syncing rpm/yum DB data for: zenity-3.28.1-1.el7.x86_64 ... Done. Syncing rpm/yum DB data for: zlib-1.2.7-18.el7.x86_64 ... Done. history sync [root@linuxcnf ~]#

Run the following command to clean yum:

[root@linuxcnf ~]# yum clean all Loaded plugins: fastestmirror, langpacks Cleaning repos: base epel extras updates Cleaning up list of fastest mirrors Other repos take up 3.9 M of disk space (use --verbose for details) [root@linuxcnf ~]#

Now install or remove any package using yum command to check the issue:

[root@linuxcnf ~]# yum install tigervnc-server tigervnc Loaded plugins: fastestmirror, langpacks ……………………….. Installed size: 1.2 M Is this ok [y/d/N]: y Downloading packages: (1/2): tigervnc-1.8.0-17.el7.x86_64.rpm                                                                                                          | 241 kB  00:00:02 (2/2): tigervnc-server-1.8.0-17.el7.x86_64.rpm                                                                                                   | 215 kB  00:00:03 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Total                                                                                                                                   130 kB/s | 456 kB  00:00:03 Running transaction check Running transaction test Transaction test succeeded Running transaction   Installing : tigervnc-1.8.0-17.el7.x86_64                                                                                                                         1/2   Installing : tigervnc-server-1.8.0-17.el7.x86_64                                                                                                                  2/2   Verifying  : tigervnc-server-1.8.0-17.el7.x86_64                                                                                                                  1/2   Verifying  : tigervnc-1.8.0-17.el7.x86_64                                                                                                                         2/2 Installed:   tigervnc.x86_64 0:1.8.0-17.el7                                                  tigervnc-server.x86_64 0:1.8.0-17.el7 Complete! [root@linuxcnf ~]#

Now the warning resolved and It worked perfectly in my case!!!