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  1. Jenkins
  2. JENKINS-56773

High master CPU usage introduced by Blue Ocean 1.14.0


    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: Major Major
    • blueocean-plugin
    • None
    • BlueOcean 1.14.0
      Jenkins 1.168
    • 1.15.0

      We went from BO 1.13.2 to BO 1.14.0.
      After the upgrade, we have seen a major CPU increase on our Jenkins master, leading to really slow UI and job execution, with threads being locked - see screenshot.

      Our master is configured to not run any job ("only build jobs with label expression matching this node").
      Using Jenkins monitor, we saw that ~90% of the CPU time was consumed by calls to the rest endpoint /blue/rest/organizations/jenkins/computers - see screenshot.

      Looking at the release notes from 1.14.0, it seems that JENKINS-52825 has introduced that endpoint and should be an area to investigate.

      We had to rollback BO to 1.13.2 which does not exhibit that behavior.

            olamy Olivier Lamy
            ojacques Olivier Jacques
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