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  1. WiredTiger
  2. WT-6515

Assertion error in test_compact02: file size is NOT less than half the full size

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    Details

    • Type: Bug
    • Status: Open
    • Priority: Major - P3
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: Backlog
    • Component/s: None
    • Labels:
      None

      Description

      This is an Evergreen failure in unit-test on OS X 10.12, commit d09046d3d6:

      The assertion on line 163 in test_compact02.py tests that the compacted table is less than half the size of the original table:

      # After compact, the file size should be less than half the full size.
      self.assertLess(sz, self.fullsize // 2) 

      The assertion failure below shows that the compacted table is close to twice the size of the original:

      [2020/07/03 10:46:36.303] ======================================================================
      [2020/07/03 10:46:36.303] FAIL: test_compact02.test_compact02.test_compact02(table.1mb.64KB) (subunit.RemotedTestCase)
      [2020/07/03 10:46:36.303] test_compact02.test_compact02.test_compact02(table.1mb.64KB)
      [2020/07/03 10:46:36.303] ----------------------------------------------------------------------
      [2020/07/03 10:46:36.303] _StringException: Traceback (most recent call last):
      [2020/07/03 10:46:36.303]   File "/data/mci/8ad02ae778d3ea800354cb66af87156a/wiredtiger/test/suite/test_compact02.py", line 163, in test_compact02
      [2020/07/03 10:46:36.303]     self.assertLess(sz, self.fullsize // 2)
      [2020/07/03 10:46:36.303]   File "/opt/mongodbtoolchain/stow/osx-python2-v3.TEr/lib/python2.7/unittest/case.py", line 931, in assertLess
      [2020/07/03 10:46:36.303]     self.fail(self._formatMessage(msg, standardMsg))
      [2020/07/03 10:46:36.303]   File "/opt/mongodbtoolchain/stow/osx-python2-v3.TEr/lib/python2.7/unittest/case.py", line 410, in fail
      [2020/07/03 10:46:36.303]     raise self.failureException(msg)
      [2020/07/03 10:46:36.303] AssertionError: 117268480 not less than 68161500
      [2020/07/03 10:46:36.303] ---------------------------------------------------------------------- 

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            Assignee:
            backlog-server-storage-engines Backlog - Storage Engines Team
            Reporter:
            tammy.bailey Tammy Bailey
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              Created:
              Updated: