Build Blocker Plugin

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Plugin Information

Plugin ID build-blocker-plugin Changes In Latest Release
Since Latest Release
Latest Release
Latest Release Date
Required Core
Jun 28, 2013
Source Code
Issue Tracking
Open Issues
Frederik Fromm (id: ffromm)
Usage Installations 2013-Apr 559
2013-May 649
2013-Jun 740
2013-Jul 850
2013-Aug 947
2013-Sep 1074
2013-Oct 1239
2013-Nov 1349
2013-Dec 1366
2014-Jan 1574
2014-Feb 1733
2014-Mar 1860

This plugin keeps the actual job in the queue if at least one name of currently running jobs is matching with one of the given regular expressions.


This plugin is similar to the locks and latches plugin. The main difference is, that it uses regular expressions to find potentially blocking jobs by their names in the list of currently running builds. It uses the QueueTaskDispatcher to check if the actual job may be build. The dispatcher uses the list of regular expressions configured in the job. If one of the currently running jobs matches with one of the regular expressions, the job stays in the queue.

How to use

After installing the plugin, the job configuration page has a new property "Block build if certain jobs are running" in the upper section.

Insert one regular expression per line into the textarea. Each expression is used to detect currently running jobs that match with their names. The first matching job name will block the build and the job will stay in the queue until all expression are evaluated without match.

Other than the locks and latches plugin where both, the job to be build and the blocking job, need to have the same lock configured, this plugin allows to just configure to job to be build. No jenkins system configuration is needed.

Version history

1.1 (June 24, 2012)

  • Initial commit.

1.2 (June 25, 2012)

  • Added wiki url to pom.

1.3 (January 8, 2013)

Merged pull request of bramtassyns ( - Thanks for the great work!:

  • FIX to work with matrix jobs
  • jobs running and - new - in queue with matching names block the current job's start

1.4.1 (June 28, 2013)

  • added "executors.addAll(computer.getOneOffExecutors());" to get a build blocked by all Multi-Configuration-Job executions. Now a blocked build starts AFTER the whole blocking matrix build and not in the middle of it. ATTENTION: With Jenkins version 1.447 the blocked job got stuck in the queue. Now the plugin requires Jenkins version 1.466 to run.


  • Block a build by all sub-execution of a matrix job build, not only the first one.
  • Make blocking by items im Queue optional (default on). There may be situations, where regarding the items in the Queue that are not yet in execution may lead in a dead lock.
  • Add information of duration blocked to comment in Queue.
  • Add optional functionality to Keep only the last item of a job in queue.
  • Add Slicer for Configuration Slicing Plugin


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