# Useful links
[safeRestart](http://jenkins/safeRestart)
[quietDown](http://jenkins/quietDown)
[pipeline-syntax](http://jenkins/pipeline-syntax)
[script](http://jenkins/script)
[job-dsl](http://jenkins/plugin/job-dsl/api-viewer/index.html)
# Clearing locks
[lockable-resources](https://jenkins.anatwine.net/lockable-resources/)
The lockable resources can get broke.
Fixed by stopping jenkins and deleting /var/lib/jenkins/org.jenkins.plugins.lockableresources.LockableResourcesManager.xml