Stephan Ewen created FLINK-1626:
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Summary: Spurious failure in MatchTask cancelling test
Key: FLINK-1626
URL:
https://issues.apache.org/jira/browse/FLINK-1626 Project: Flink
Issue Type: Bug
Components: Local Runtime
Affects Versions: 0.9
Reporter: Stephan Ewen
Assignee: Stephan Ewen
Fix For: 0.9
This is a problem in the test. Cancelling a task may actually throw an exception (especially interrupted exceptions). The test can be modified to either only call cancel and not call interrupt, or to tolerate exceptions that are followup exceptions of interrupted exceptions. I would prepare a patch for the first approach.
The stack trace of the symptom is blow:
{code}
java.lang.RuntimeException: Hashtable closing was interrupted
at org.apache.flink.runtime.operators.hash.MutableHashTable.close(MutableHashTable.java:652)
at org.apache.flink.runtime.operators.hash.ReusingBuildFirstHashMatchIterator.close(ReusingBuildFirstHashMatchIterator.java:100)
at org.apache.flink.runtime.operators.MatchDriver.cleanup(MatchDriver.java:179)
at org.apache.flink.runtime.operators.testutils.DriverTestBase.testDriverInternal(DriverTestBase.java:245)
at org.apache.flink.runtime.operators.testutils.DriverTestBase.testDriver(DriverTestBase.java:175)
at org.apache.flink.runtime.operators.MatchTaskTest$4.run(MatchTaskTest.java:783)
Tests run: 47, Failures: 2, Errors: 0, Skipped: 0, Time elapsed: 15.589 sec <<< FAILURE! - in org.apache.flink.runtime.operators.MatchTaskTest
testCancelHashMatchTaskWhileBuildFirst[1](org.apache.flink.runtime.operators.MatchTaskTest) Time elapsed: 1.029 sec <<< FAILURE!
java.lang.AssertionError: Test threw an exception even though it was properly canceled.
at org.junit.Assert.fail(Assert.java:88)
at org.junit.Assert.assertTrue(Assert.java:41)
at org.apache.flink.runtime.operators.MatchTaskTest.testCancelHashMatchTaskWhileBuildFirst(MatchTaskTest.java:802)
{code}
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