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** [tickets:#7795] test_version_race fails occassionally**

**Status:** open
**Milestone:** unreleased
**Created:** Thu Nov 06, 2014 05:33 PM UTC by Dave Brondsema
**Last Updated:** Thu Nov 06, 2014 05:33 PM UTC
**Owner:** nobody

`forgewiki.tests.test_models.TestPageSnapshots.test_version_race` fails 
occasionally.  I've seen it every 20 or so runs maybe?

~~~~
  File "/usr/lib64/python2.7/unittest/case.py", line 365, in run
    testMethod()
  File 
"/var/local/env-allura/lib/python2.7/site-packages/nose-1.3.4-py2.7.egg/nose/case.py",
 line 197, in runTest
    self.test(*self.arg)
  File "/home/jenkins/jenkins-1244/forge/Allura/allura/tests/decorators.py", 
line 82, in wrapped
    return func(*args, **kw)
  File 
"/home/jenkins/jenkins-1244/forge/ForgeWiki/forgewiki/tests/test_models.py", 
line 55, in test_version_race
    assert page.history().count() == 21, page.history().count()
12
-------------------- >> begin captured stdout << ---------------------
Running setup_app() from allura.websetup

--------------------- >> end captured stdout << ----------------------

Standard Error

Exception in thread Thread-1:
Traceback (most recent call last):
  File "/usr/lib64/python2.7/threading.py", line 551, in __bootstrap_inner
    self.run()
  File "/usr/lib64/python2.7/threading.py", line 504, in run
    self.__target(*self.__args, **self.__kwargs)
  File 
"/home/jenkins/jenkins-1244/forge/ForgeWiki/forgewiki/tests/test_models.py", 
line 46, in <lambda>
    t1 = Thread(target=lambda: run(1))
  File 
"/home/jenkins/jenkins-1244/forge/ForgeWiki/forgewiki/tests/test_models.py", 
line 44, in run
    page.commit()
  File "/home/jenkins/jenkins-1244/forge/ForgeWiki/forgewiki/model/wiki.py", 
line 135, in commit
    v1 = self.get_version(self.version - 1)
  File "/home/jenkins/jenkins-1244/forge/Allura/allura/model/artifact.py", line 
524, in get_version
    version=n)
  File 
"/var/local/env-allura/lib/python2.7/site-packages/Ming-0.4.7-py2.7.egg/ming/odm/mapper.py",
 line 284, in get
    return self.find(kwargs).first()
  File 
"/var/local/env-allura/lib/python2.7/site-packages/Ming-0.4.7-py2.7.egg/ming/odm/odmsession.py",
 line 358, in first
    return self.next()
  File 
"/var/local/env-allura/lib/python2.7/site-packages/Ming-0.4.7-py2.7.egg/ming/odm/odmsession.py",
 line 311, in next
    return self._next_impl()
  File 
"/var/local/env-allura/lib/python2.7/site-packages/Ming-0.4.7-py2.7.egg/ming/odm/odmsession.py",
 line 286, in _next_impl
    doc = self.ming_cursor.next()
  File 
"/var/local/env-allura/lib/python2.7/site-packages/Ming-0.4.7-py2.7.egg/ming/base.py",
 line 74, in next
    doc = self.cursor.next()
  File 
"/var/local/env-allura/lib/python2.7/site-packages/Ming-0.4.7-py2.7.egg/ming/mim.py",
 line 567, in next
    value = self.iterator.next()
  File 
"/var/local/env-allura/lib/python2.7/site-packages/Ming-0.4.7-py2.7.egg/ming/mim.py",
 line 516, in <genexpr>
    result = (doc for doc,match in self._iterator_gen())
  File 
"/var/local/env-allura/lib/python2.7/site-packages/Ming-0.4.7-py2.7.egg/ming/mim.py",
 line 302, in _gen
    for doc in self._data.itervalues():
RuntimeError: dictionary changed size during iteration
~~~~


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