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  1. Core Server
  2. SERVER-16366

Gradually degrading performance (wiredtiger)

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

            Assignee:
            bruce.lucas@mongodb.com Bruce Lucas (Inactive)
            Reporter:
            cailin.nelson@mongodb.com Cailin Nelson (Inactive)
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              Created:
              Updated:
              Resolved: