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  1. Jenkins
  2. JENKINS-49940

Concurrent build limits not honored on kubernetes container environment with Jenkins 2.89.4

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      Description

      After upgrading to Jenkins to  2.89.4 we noticed the throttle plugin 2.0.1 doesn't always prevent jobs from running in parallel as expected.

      Steps to reproduce:
      1. Create a Throttle category with

      •  Maximum Total Concurrent Builds -> 0
      • Maximum Concurrent Builds Per Node -> 3
      • Maximum Concurrent Builds Per Node Labeled As Above -> 3.

      2. Created Kubernetes Pod Template with

      • Max number of instances -> 3
      •  Container Cap -> 3

      3. Create 3 jobs using the category, restricted to a node with two executors

      4. 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).

      Setup Details:

      Jenkins :  2.89.4
      Throttle Concurrent Builds : 2.0.1
      Kubernetes : 1.3.1

       

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          akshay1909 Akshay Chaknalwar created issue -

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            Assignee:
            Unassigned Unassigned
            Reporter:
            akshay1909 Akshay Chaknalwar
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            Watchers:
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              Dates

              Created:
              Updated: