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This plugin integrates Gearman with Jenkins and will make it so that any Jenkins slave on any Jenkins master can service a job in the queue.   This plugin will essentially replace the Jenkins (master) build queue with the Gearman job queue.  The job will stay in the Gearman queue until there is a Jenkins node (master or slave) that can run that job.  The gearman job queue is shared by multiple jenkins masters therefore gearman can hand out jobs to the next available slave on any jenkins master.

Features

  • High availability(is).  When one master goes down the other master(s) will continue to execute builds however the in flight jobs on the down master will be lost.
  • Slaves are (by default) always shared between masters.  The only way to un-share is to offline or disconnect a slave.
  • Horizontal scalability.  Just continue to add more jenkins masters to distribute the load between masters.
  • Gearman jobs can start a jenkins build
  • Gearman jobs can stop or abort a jenkins build
  • Gearman jobs can change a build description
  • Gearman jobs can pass in parameters to jenkins builds
  • Gearman jobs can automatically set a slave to offline after running a build
  • Gearman is aware of Jenkins project status: meaning that gearman will register/unregister projects when the project is enabled or disabled. 
  • Gearman is aware of slave status: meaning that gearman will register/unregister slaves when a slave is set online/offline and connected/disconnected.
  • Plugin reloads on jenkins restart: meaning that when jenkins restarts the gearman worker threads are automatically restarted and reconnect to a gearman server. 

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