Unbounded lookaside table growth during insert workload

XMLWordPrintableJSON

    • Type: Bug
    • Resolution: Fixed
    • Priority: Major - P3
    • 3.6.6, 4.0.0
    • Affects Version/s: 3.6.0-rc8
    • Component/s: Storage
    • None
    • Storage Execution
    • Fully Compatible
    • ALL
    • None
    • 3
    • None
    • None
    • None
    • None
    • None
    • None
    • None

      1-node repl set, SSD, 50 GB oplog, 4 GB cache, 5 threads inserting 130 kB docs.

      It appears that the lookaside table, both number of entries and size of WiredTigerLAS.wt ("csv size" metric), grows without bound during a heavy write workload. Even after the workload is stopped the table doesn't shrink.

      FTDC data attached.

        1. dd-rc8-small.tar
          687 kB
          Bruce Lucas
        2. growth.png
          146 kB
          Bruce Lucas
        3. index-build.png
          162 kB
          Bruce Lucas
        4. Screen Shot 2017-12-15 at 4.12.53 pm.png
          462 kB
          Alexander Gorrod

              Assignee:
              [DO NOT USE] Backlog - Storage Execution Team
              Reporter:
              Bruce Lucas (Inactive)
              Votes:
              0 Vote for this issue
              Watchers:
              14 Start watching this issue

                Created:
                Updated:
                Resolved: