[PKG-Openstack-devel] Bug#795974: python-dogpile.core: Non-determistically FTBFS due to unreliable timing in tests

Chris Lamb lamby at debian.org
Tue Aug 18 12:37:01 UTC 2015


Source: python-dogpile.core
Version: 0.4.1+dfsg1-2
Severity: serious
Justification: fails to build from source
User: reproducible-builds at lists.alioth.debian.org
Usertags: ftbfs
X-Debbugs-Cc: reproducible-builds at lists.alioth.debian.org

Dear Maintainer,

python-dogpile.core's testsuite appears to use method
timing/benchmarking in such
a way that it will non-deterministically FTBFS:

  [..]
  .
  ======================================================================
  FAIL: test_get_value_plus_created_slow_write
  (tests.core.test_dogpile.ConcurrencyTest)
  ----------------------------------------------------------------------
  Traceback (most recent call last):
    File
    "/tmp/buildd/python-dogpile.core-0.4.1+dfsg1/tests/core/test_dogpile.py",
    line 51, in test_get_value_plus_created_slow_write
      slow_write_time=2
    File
    "/tmp/buildd/python-dogpile.core-0.4.1+dfsg1/tests/core/test_dogpile.py",
    line 323, in _test_multi
      expected_slow_waiters
  AssertionError: Number of slow waiters 56 exceeds expected slow
  waiters 50
  
  ----------------------------------------------------------------------
  Ran 19 tests in 356.000s
  
  FAILED (failures=1)
  debian/rules:23: recipe for target 'override_dh_auto_test' failed
  make[1]: *** [override_dh_auto_test] Error 1
  make[1]: Leaving directory
  '/tmp/buildd/python-dogpile.core-0.4.1+dfsg1'
  debian/rules:9: recipe for target 'build' failed
  make: *** [build] Error 2
  dpkg-buildpackage: error: debian/rules build gave error exit status 2

  [..]

Looks like upstream are at least aware of the issue:

  https://bitbucket.org/zzzeek/dogpile.cache/issues/59/assertionerror-number-of-slow-waiters-15

The full build log is attached or can be viewed here:

  https://reproducible.debian.net/logs/unstable/amd64/python-dogpile.core_0.4.1+dfsg1-2.build1.log.gz


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby at debian.org / chris-lamb.co.uk
       `-
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