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  1. Core Server
  2. SERVER-17115

insert workload stalls on oplog truncates

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Details

    • Bug
    • Status: Closed
    • Critical - P2
    • Resolution: Fixed
    • 3.0.0-rc7
    • 3.0.0-rc8
    • WiredTiger
    • None
    • Fully Compatible
    • ALL

    Description

      YCSB load phase, running with no journal, oplog size 2GB, cache_size 2GB.
      Inserting 30M documents fieldcount=1 (so 151 bytes each).

      After period of time the inserts stall, seemingly forever waiting for eviction threads.

      Have also reproduced this with journal - needed a smaller cache (used 1G).

      Attachments

        1. capped-throttle-deadlock.diff
          4 kB
        2. dropout-after-fix.png
          dropout-after-fix.png
          142 kB
        3. gdbmon.png
          gdbmon.png
          253 kB
        4. gdbmon.txt
          367 kB
        5. serverStatus.txt
          14 kB
        6. ss.html
          2.95 MB
        7. ss.log
          10.98 MB
        8. ss.png
          ss.png
          170 kB
        9. ssRC7.log
          4.97 MB
        10. stuck1G_2.gdbmon
          386 kB
        11. stuck1G.gdbmon
          376 kB
        12. stuck2G.gdbmon
          626 kB
        13. stuck2G.html
          150 kB
        14. stuck2G.png
          stuck2G.png
          448 kB
        15. stuck94cb08.gdbmon
          711 kB

        Issue Links

          related to

          Bug - A problem which impairs or prevents the functions of the product. SERVER-17121 Throughput Dropout on mongo-sim insert-update-query workload with WiredTiger

          • Critical - P2 - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. SERVER-17094 repairing local db with WiredTiger will deadlock with the oplog cleaning thread and crash

          • Major - P3 - Major loss of function.
          • Closed

          Activity

            People

              michael.cahill@mongodb.com Michael Cahill
              asya.kamsky@mongodb.com Asya Kamsky
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              Dates

                Created:
                Updated:
                Resolved: