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https://issues.apache.org/jira/browse/CASSANDRA-944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12852873#action_12852873
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Matthew F. Dennis commented on CASSANDRA-944:
---------------------------------------------
Sorry, not on a mac, on Linux (see environment field for details )
I was thinking more like lowering the sleep, but putting it in a loop with a
much higher max wait time (like an entire second).
Assuming the test is trying to verify that eventually the correct data shows up
(and is not trying to verify the data shows up in under 0.1 seconds), then I
believe something similar to the following would address the issue.
wait = 1s
start = now
verified = false
while not (verified = try_to_verify) and now < start+wait:
sleep(0.05)
if not verified:
fail_test
thoughts?
> system.test_thrift_server.TestMutations.test_batch_mutate_standard_columns
> appears to be non deterministic
> ----------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-944
> URL: https://issues.apache.org/jira/browse/CASSANDRA-944
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 0.6
> Environment: xubuntu 9.10
> Linux mdennis 2.6.31-20-generic #58-Ubuntu SMP Fri Mar 12 05:23:09 UTC 2010
> i686 GNU/Linux
> Reporter: Matthew F. Dennis
>
> system.test_thrift_server.TestMutations.test_batch_mutate_standard_columns
> appears to be non deterministic. The first time I ran the thrift tests after
> a clean checkout it failed. However, it did not fail the ~10 times after
> that.
> {code}
> mden...@mdennis:~/c/cassandra$ nosetests test/system/test_thrift_server.py
> ...........E....................................
> ======================================================================
> ERROR:
> system.test_thrift_server.TestMutations.test_batch_mutate_standard_columns
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File "/usr/lib/pymodules/python2.6/nose/case.py", line 183, in runTest
> self.test(*self.arg)
> File "/home/mdennis/c/cassandra/test/system/test_thrift_server.py", line
> 318, in test_batch_mutate_standard_columns
> _assert_column('Keyspace1', column_family, key, 'c1', 'value1')
> File "/home/mdennis/c/cassandra/test/system/test_thrift_server.py", line
> 43, in _assert_column
> raise Exception('expected %s:%s:%s:%s:%s, but was not present' %
> (keyspace, column_family, key, column, value) )
> Exception: expected Keyspace1:Standard1:key_27:c1:value1, but was not present
> ----------------------------------------------------------------------
> Ran 48 tests in 184.700s
> FAILED (errors=1)
> {code}
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