plugin removed

Tested plugin removal on Staging, it worked as expected and the plugin is gone.

I got the following warning from Jenkins:
You have data stored in an older format and/or unreadable data.
CannotResolveClassException: hudson.plugins.disk_usage.DiskUsageProperty

This doesn't affect jobs themselves and there's an action to discard this unreadable data from job configs.

The plugin is still present in puppet:
https://gerrit.ovirt.org/gitweb?p=infra-puppet.git;a=blob;f=hieradata/common.yaml;h=b37a7532e475784fb63e75532a800446653c9f57;hb=refs/heads/production#l78

The way to remove it is:
1) remove plugin from the above file to ensure it's not re-installed
2) stop jenkins
3) remove the plugin from disk (our manifest can't do that)
4) start jenkins

I'll do a quick test on staging and restart Jenkins this week

I looked at the Jenkins and saw that this plugin in pending uninstallation.
This looks like a serious bug unless it is waiting for the next restart.
@Former user When are planing the next Jenkins restart? You need to meake sure that after the restart, this pluging had been uninstalled. If it hadn't been uninstalled, please try to manually remove the folder from the file-system and restart the service again.

I'm almost sure that Barak had told me that he is going to remove this plugin but looks like it is still there.