Uploaded image for project: 'Core Server'
  1. Core Server
  2. SERVER-16366

Gradually degrading performance (wiredtiger)

XMLWordPrintableJSON

    • Fully Compatible
    • ALL

      After ~24 hours or so, I am finding that performance gradually degrades.

      • Primary: 2.8.0rc1 WT
      • Secondaries: 2.8.0rc1 MMAPv1

      Please see attached MMS Screenshot. The displayed range starts shortly after a full system restart. Note that queues increase as well as replication lag on the secondaries. Also attach opcounters, from which you can at least crudely see that the application load is consistent.

      I do not see this type of behavior when the primary is MMAPv1.

        1. Screen Shot 2014-12-01 at 1.41.08 PM.png
          Screen Shot 2014-12-01 at 1.41.08 PM.png
          180 kB
        2. Screen Shot 2014-12-01 at 1.45.38 PM.png
          Screen Shot 2014-12-01 at 1.45.38 PM.png
          215 kB
        3. dev_1.png
          dev_1.png
          265 kB
        4. mmsqa.png
          mmsqa.png
          157 kB
        5. mmsqa2.png
          mmsqa2.png
          147 kB
        6. mmsdev-2014-12-10.png
          mmsdev-2014-12-10.png
          134 kB
        7. checkpoint.png
          checkpoint.png
          76 kB
        8. gdbmon.html
          382 kB
        9. longer_transition.html
          1.24 MB
        10. longer_transition.png
          longer_transition.png
          422 kB
        11. transition.html
          173 kB
        12. transition.png
          transition.png
          298 kB
        13. waiting-1.png
          waiting-1.png
          147 kB
        14. waiting-2.png
          waiting-2.png
          209 kB
        15. working-1.png
          working-1.png
          319 kB
        16. working-2.png
          working-2.png
          193 kB
        17. mmsdev_stable.png
          mmsdev_stable.png
          302 kB

            Assignee:
            bruce.lucas@mongodb.com Bruce Lucas (Inactive)
            Reporter:
            cailin.nelson@mongodb.com Cailin Nelson (Inactive)
            Votes:
            0 Vote for this issue
            Watchers:
            18 Start watching this issue

              Created:
              Updated:
              Resolved: