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  1. Jenkins
  2. JENKINS-26020

Will not start builds even though there are available slots on executor

    Details

    • Type: Bug
    • Status: Resolved (View Workflow)
    • Priority: Critical
    • Resolution: Incomplete
    • Component/s: core
    • Labels:
      None
    • Environment:
      LTS 1.580.1
    • Similar Issues:

      Description

      Sometimes our nodes won't be able to start new builds even though there are free slots available.

      A workaround for the slaves is to disconnect/connect the slave and it will start to schedule builds again.

      I have observed that when this happens for a slave the slave has fewer threads ongoing than an idle slave.

      Attaching thread dumps when this happens and after doing an disconnect/connect.

      We have seen this issue both on Windows(jlnp) slaves and linux(ssh) slaves as well as on the master node which is running linux.

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              • Assignee:
                Unassigned
                Reporter:
                ki82 Christian Bremer
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                Dates

                • Created:
                  Updated:
                  Resolved: