Uploaded image for project: 'Hadoop YARN'
  1. Hadoop YARN
  2. YARN-3933

FairScheduler: Multiple calls to completedContainer are not safe

VotersWatch issueWatchersCreate sub-taskLinkCloneUpdate Comment AuthorReplace String in CommentUpdate Comment VisibilityDelete Comments
    XMLWordPrintableJSON

Details

    • Reviewed

    Description

      In our cluster we are seeing available memory and cores being negative.
      Initial inspection:
      Scenario no. 1:
      In capacity scheduler the method allocateContainersToNode() checks if
      there are excess reservation of containers for an application, and they are no longer needed then it calls queue.completedContainer() which causes resources being negative. And they were never assigned in the first place.

      I am still looking through the code. Can somebody suggest how to simulate excess containers assignments ?

      Attachments

        1. YARN-3933.001.patch
          12 kB
          Shiwei Guo
        2. YARN-3933.002.patch
          12 kB
          Shiwei Guo
        3. YARN-3933.003.patch
          12 kB
          Shiwei Guo
        4. YARN-3933.004.patch
          14 kB
          Sunil G
        5. YARN-3933.005.patch
          14 kB
          Sunil G
        6. YARN-3933.006.patch
          6 kB
          Miklos Szegedi
        7. yarn-3933-branch-2.8.patch
          6 kB
          Karthik Kambatla

        Issue Links

        Activity

          This comment will be Viewable by All Users Viewable by All Users
          Cancel

          People

            guoshiwei Shiwei Guo
            lavkesh Lavkesh Lahngir
            Votes:
            3 Vote for this issue
            Watchers:
            27 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:

              Slack

                Issue deployment