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Posted to dev@qpid.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2020/04/07 17:01:00 UTC
[jira] [Commented] (PROTON-2116) Memory leak in python client
[ https://issues.apache.org/jira/browse/PROTON-2116?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17077417#comment-17077417 ]
ASF GitHub Bot commented on PROTON-2116:
----------------------------------------
jiridanek commented on pull request #237: PROTON-2116 [python] add test for the object leak issue in BlockingConnection
URL: https://github.com/apache/qpid-proton/pull/237
The issue fixed in https://issues.apache.org/jira/browse/PROTON-2116 is fixed on Linux, but not on Windows: the test fails there.
@astitcher This one takes 18 s. I guess it can be easilly sped up by running the outer for loop 3 times, instead of 5 (so 40 % improvement), then it would take larger changes to make it even faster.
```27: Test timeout computed to be: 1500
27: test_blocking_connection_object_leak (blocking_connection_object_leak_test.BlockingConnectionObjectLeakTests)
27: Kills and restarts broker repeatedly, while client is reconnecting. ... FAIL
27:
27: ======================================================================
27: FAIL: test_blocking_connection_object_leak (blocking_connection_object_leak_test.BlockingConnectionObjectLeakTests)
27: Kills and restarts broker repeatedly, while client is reconnecting.
27: ----------------------------------------------------------------------
27: Traceback (most recent call last):
27: File "C:\projects\qpid-proton\python\tests\integration\blocking_connection_object_leak_test.py", line 149, in test_blocking_connection_object_leak
27: self.assertEqual([0] * 4, diffs, "Object counts should not be increasing")
27: AssertionError: Lists differ: [0, 0, 0, 0] != [0, 30, 60, 90]
27:
27: First differing element 1:
27: 0
27: 30
27:
27: - [0, 0, 0, 0]
27: + [0, 30, 60, 90]
27: ? + + +
27: : Object counts should not be increasing
27:
27: ----------------------------------------------------------------------
27: Ran 1 test in 17.445s
27:
27: FAILED (failures=1)
27/28 Test #27: python-integration-test ..........***Failed 17.77 sec
test 28
```
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> Memory leak in python client
> ----------------------------
>
> Key: PROTON-2116
> URL: https://issues.apache.org/jira/browse/PROTON-2116
> Project: Qpid Proton
> Issue Type: Bug
> Components: python-binding
> Affects Versions: proton-c-0.29.0
> Reporter: Clifford Jansen
> Assignee: Clifford Jansen
> Priority: Major
> Fix For: proton-c-0.30.0
>
> Attachments: leak.py
>
>
> The Python client leaks transports and selectables. When using the BlockingConnection classes, Containers, Collectors and other runtime class objects can also leak as additional referents.
> To reproduce, run the test case leak.py against the example broker. Kill and restart the broker repeatedly. The value of gc.get_objects() keeps increasing.
> Breaking the circular references between transports and selectables prevents these leaks.
>
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