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https://issues.apache.org/jira/browse/QPID-3922?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13476391#comment-13476391
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Alan Conway edited comment on QPID-3922 at 10/15/12 8:18 PM:
-------------------------------------------------------------
The problematic code seems to be this in tests/messaging/endpoints.py:
{noformat}
def use_fds(self):
fds = []
try:
while True:
fds.append(os.open(getattr(os, "devnull", "/dev/null"), os.O_RDONLY))
except OSError, e:
if e.errno != errno.EMFILE:
raise e
else:
return fds
{noformat}
I'm not sure what the intent is here, but if ulimit is set high then select
will choke on the resulting set.
Would a simple fixed-size set do the job for this test? Is there a way to find
out the max set size for selecct at run time?
was (Author: aconway):
The problematic code seems to be this in tests/messaging/endpoints.py:
def use_fds(self):
fds = []
try:
while True:
fds.append(os.open(getattr(os, "devnull", "/dev/null"), os.O_RDONLY))
except OSError, e:
if e.errno != errno.EMFILE:
raise e
else:
return fds
I'm not sure what the intent is here, but if ulimit is set high then select
will choke on the resulting set.
Would a simple fixed-size set do the job for this test? Is there a way to find
out the max set size for selecct at run time?
> Python tests fail/hang with ulimit -n 65536
> -------------------------------------------
>
> Key: QPID-3922
> URL: https://issues.apache.org/jira/browse/QPID-3922
> Project: Qpid
> Issue Type: Bug
> Components: Python Client
> Affects Versions: 0.17
> Reporter: Alan Conway
> Assignee: Rafael H. Schloming
> Priority: Minor
>
> Some of the python tests fail and hang if run with ulimit -n 65536. To
> reproduce in a c++ build go to the src/tests directory and:
> su root -c 'ulimit -n 65536; make check TESTS="start_broker python_tests
> stop_broker" PYTHON_TESTS=*endpoints.SetupTests*'
> Several tests fail and then testOpenReconnectURLs hangs as follows:
> qpid.tests.messaging.endpoints.SetupTests.testOpenCloseResourceLeaks
> ................ start
> Exception in thread Thread-1:
> Traceback (most recent call last):
> File "/usr/lib64/python2.6/threading.py", line 532, in __bootstrap_inner
> self.run()
> File "/usr/lib64/python2.6/threading.py", line 484, in run
> self.__target(*self.__args, **self.__kwargs)
> File "/home/aconway/qpidha/opt/src/tests/python/qpid/selector.py", line
> 119, in run
> rd, wr, ex = select(self.reading, self.writing, (), timeout)
> ValueError: filedescriptor out of range in select()
>
> qpid.tests.messaging.endpoints.SetupTests.testOpenCloseResourceLeaks
> ................ fail
> Error during test: Traceback (most recent call last):
> File
> "/home/aconway/qpidha/opt/src/tests/python/commands/qpid-python-test", line
> 340, in run
> phase()
> File
> "/home/aconway/qpidha/opt/src/tests/python/qpid/tests/messaging/endpoints.py",
> line 86, in testOpenCloseResourceLeaks
> conn = Connection.establish(self.broker, **self.connection_options())
> File
> "/home/aconway/qpidha/opt/src/tests/python/qpid/messaging/endpoints.py", line
> 68, in establish
> conn.open()
> File "<string>", line 6, in open
> File
> "/home/aconway/qpidha/opt/src/tests/python/qpid/messaging/endpoints.py", line
> 256, in open
> self.attach()
> File "<string>", line 6, in attach
> File
> "/home/aconway/qpidha/opt/src/tests/python/qpid/messaging/endpoints.py", line
> 274, in attach
> self._ewait(lambda: self._transport_connected and not self._unlinked())
> File
> "/home/aconway/qpidha/opt/src/tests/python/qpid/messaging/endpoints.py", line
> 208, in _ewait
> result = self._wait(lambda: self.error or predicate(), timeout)
> File
> "/home/aconway/qpidha/opt/src/tests/python/qpid/messaging/endpoints.py", line
> 193, in _wait
> return self._waiter.wait(predicate, timeout=timeout)
> File "/home/aconway/qpidha/opt/src/tests/python/qpid/concurrency.py",
> line 57, in wait
> self.condition.wait(3)
> File "/home/aconway/qpidha/opt/src/tests/python/qpid/concurrency.py",
> line 96, in wait
> sw.wait(timeout)
> File "/home/aconway/qpidha/opt/src/tests/python/qpid/compat.py", line 53,
> in wait
> ready, _, _ = select([self], [], [], timeout)
> ValueError: filedescriptor out of range in select()
> qpid.tests.messaging.endpoints.SetupTests.testOpenFailResourceLeaks
> ................. fail
> Error during test: Traceback (most recent call last):
> File
> "/home/aconway/qpidha/opt/src/tests/python/commands/qpid-python-test", line
> 340, in run
> phase()
> File
> "/home/aconway/qpidha/opt/src/tests/python/qpid/tests/messaging/endpoints.py",
> line 102, in testOpenFailResourceLeaks
> conn._wait(lambda: False, timeout=0.001)
> File
> "/home/aconway/qpidha/opt/src/tests/python/qpid/messaging/endpoints.py", line
> 193, in _wait
> return self._waiter.wait(predicate, timeout=timeout)
> File "/home/aconway/qpidha/opt/src/tests/python/qpid/concurrency.py",
> line 59, in wait
> self.condition.wait(timeout - passed)
> File "/home/aconway/qpidha/opt/src/tests/python/qpid/concurrency.py",
> line 96, in wait
> sw.wait(timeout)
> File "/home/aconway/qpidha/opt/src/tests/python/qpid/compat.py", line 53,
> in wait
> ready, _, _ = select([self], [], [], timeout)
> ValueError: filedescriptor out of range in select()
> qpid.tests.messaging.endpoints.SetupTests.testOpenReconnectURLs ....
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