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  1. Jenkins
  2. JENKINS-27708

Concurrent build limits not honored on Jenkins 1.607


      After upgrading to 1.607 we noticed the throttle plugin doesn't always prevent jobs from running in parallel as expected.

      Steps to reproduce:
      1. Create a throttle category with global limit 1, per-node limit 1.
      2. Create 3 jobs using the category, restricted to a node with two executors, sleep 60 as a build step.
      3. Request builds of all 3 jobs.

      What should happen:
      4. Jobs run in sequence; 1 then 2 then 3.

      What actually happens:
      5. Job 1 starts building, jobs 2 and 3 wait in queue (OK).
      6. After job 1 finishes, both job 2 and 3 start running (not OK).

      Plugin version is 1.8.4. Issue does not appear in Jenkins 1.606 with the same version of the plugin. Issue is reproducible on a fresh install.

      We were forced to downgrade back to 1.606 as a workaround (which is unfortunately not trivial due to JENKINS-27700).

            oleg_nenashev Oleg Nenashev
            tsniatowski Tomasz Ĺšniatowski
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