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  1. Apache YuniKorn
  2. YUNIKORN-2 Support Gang Scheduling
  3. YUNIKORN-520

Gang scheduling waits indefinitely for placeholder pod allocation even where is no quota left in the queue

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    Description

      • Create a namespace(ns.yaml with quota.
      • Submit a job(job.yaml where the placeholder pods resource requests are more than queue quota.

      The YK waits indefinitely for the placeholder pods minMember limit to be satisfied. Gang scheduling can action to avoid this indefinite lock situation, incase of resource limits.

       

      NAME↑                       READY STATUS   RS CPU MEM %CPU/R %MEM/R %CPU/L %MEM/L IP                NODE                                              QOS  AGE      │
│ batch-sleep-job-4-hzc49     0/0   Pending   0 n/a n/a    n/a    n/a    n/a    n/a n/a               n/a                                               BU   4h28m    │
│ batch-sleep-job-4-jmqbf     0/0   Pending   0 n/a n/a    n/a    n/a    n/a    n/a n/a               n/a                                               BU   4h28m    │
│ batch-sleep-job-4-kg7hl     0/0   Pending   0 n/a n/a    n/a    n/a    n/a    n/a n/a               n/a                                               BU   4h28m    │
│ tg-tg1-batch-sleep-job-4-0  1/1   Running   0 n/a n/a    n/a    n/a    n/a    n/a 100.100.134.233   ip-10-192-136-201.ca-central-1.compute.internal   BU   4h28m    │
│ tg-tg1-batch-sleep-job-4-1  1/1   Running   0 n/a n/a    n/a    n/a    n/a    n/a 100.100.87.75     ip-10-192-159-151.ca-central-1.compute.internal   BU   4h28m    │
│ tg-tg1-batch-sleep-job-4-2  0/0   Pending   0 n/a n/a    n/a    n/a    n/a    n/a n/a               n/a                                               BU   4h28m    │

      Attachments

        1. ns.yaml
          0.2 kB
          Ayub Pathan
        2. job.yaml
          0.9 kB
          Ayub Pathan

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. YUNIKORN-550 taskgroup cpu and memory resources are not scaled correctly

          • Major - Major loss of function.
          • Closed
          links to

          Web Link GitHub Pull Request #234

          Activity

            People

              manirajv06@gmail.com Manikandan R
              ayubpathan Ayub Pathan
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                Created:
                Updated:
                Resolved: