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https://issues.apache.org/jira/browse/GEODE-4015?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16267511#comment-16267511
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ASF subversion and git services commented on GEODE-4015:
--------------------------------------------------------
Commit e286c4e7d1225270b8132db0fea9d5ff46b38876 in geode's branch
refs/heads/develop from [~barry.oglesby]
[ https://gitbox.apache.org/repos/asf?p=geode.git;h=e286c4e ]
GEODE-4015: Modified test Wait description to return actual value
> CI failure: ConflationDUnitTest.testTwoRegionsTwoWriters fails with
> AssertionError
> ----------------------------------------------------------------------------------
>
> Key: GEODE-4015
> URL: https://issues.apache.org/jira/browse/GEODE-4015
> Project: Geode
> Issue Type: Bug
> Components: client queues
> Reporter: Barry Oglesby
>
> Both testTwoRegionsTwoWriters and testTwoRegionsOneWriter failed with the
> same AssertionError:
> {noformat}
> org.apache.geode.internal.cache.tier.sockets.ConflationDUnitTest >
> testTwoRegionsTwoWriters FAILED
> java.lang.AssertionError: Test failed due to exception
> at org.apache.geode.test.dunit.Assert.fail(Assert.java:66)
> at
> org.apache.geode.internal.cache.tier.sockets.ConflationDUnitTest.testTwoRegionsTwoWriters(ConflationDUnitTest.java:155)
> Caused by:
> org.apache.geode.test.dunit.RMIException: While invoking
> org.apache.geode.internal.cache.tier.sockets.ConflationDUnitTest$$Lambda$193/1316585270.run
> in VM 2 running on Host 6b07584084c4 with 4 VMs
> at org.apache.geode.test.dunit.VM.invoke(VM.java:393)
> at org.apache.geode.test.dunit.VM.invoke(VM.java:363)
> at org.apache.geode.test.dunit.VM.invoke(VM.java:308)
> at
> org.apache.geode.internal.cache.tier.sockets.ConflationDUnitTest.testTwoRegionsTwoWriters(ConflationDUnitTest.java:153)
> Caused by:
> java.lang.AssertionError: Event never occurred after 60000 ms:
> null
> at org.junit.Assert.fail(Assert.java:88)
> at
> org.apache.geode.test.dunit.Wait.waitForCriterion(Wait.java:190)
> at
> org.apache.geode.internal.cache.tier.sockets.ConflationDUnitTest.assertCounterSizes(ConflationDUnitTest.java:506)
> at
> org.apache.geode.internal.cache.tier.sockets.ConflationDUnitTest.lambda$testTwoRegionsTwoWriters$bb17a952$10(ConflationDUnitTest.java:153)
> {noformat}
> {noformat}
> org.apache.geode.internal.cache.tier.sockets.ConflationDUnitTest >
> testTwoRegionsOneWriter FAILED
> org.apache.geode.test.dunit.RMIException: While invoking
> org.apache.geode.internal.cache.tier.sockets.ConflationDUnitTest$$Lambda$221/1553950035.run
> in VM 2 running on Host 6b07584084c4 with 4 VMs
> at org.apache.geode.test.dunit.VM.invoke(VM.java:393)
> at org.apache.geode.test.dunit.VM.invoke(VM.java:363)
> at org.apache.geode.test.dunit.VM.invoke(VM.java:308)
> at
> org.apache.geode.internal.cache.tier.sockets.ConflationDUnitTest.testTwoRegionsOneWriter(ConflationDUnitTest.java:183)
> Caused by:
> java.lang.AssertionError: Event never occurred after 60000 ms: null
> at org.junit.Assert.fail(Assert.java:88)
> at
> org.apache.geode.test.dunit.Wait.waitForCriterion(Wait.java:190)
> at
> org.apache.geode.internal.cache.tier.sockets.ConflationDUnitTest.assertCounterSizes(ConflationDUnitTest.java:506)
> at
> org.apache.geode.internal.cache.tier.sockets.ConflationDUnitTest.lambda$testTwoRegionsOneWriter$bb17a952$10(ConflationDUnitTest.java:183)
> {noformat}
> ConflationDUnitTest.assertCounterSizes(ConflationDUnitTest.java:506) is
> waiting for {{counterUpdate == 2}}.
> I think this is a timing issue. The first line of the test sets
> CacheClientProxy.isSlowStartForTesting to true. This causes the
> MessageDispatcher to not send messages immediately. Instead, it waits for 5
> seconds before sending. This allows the queue to conflate the events. If I
> remove the slow start setting, the test fails every time because conflation
> doesn't happen.
> Unfortunately, the description returns null (the null in the AssertionError
> messages above), so we don't know anything about why the assertion is
> failing. If it were changed to return the actual value of counterUpdate, that
> would be helpful.
> With that change and the boolean not set in the test, I see:
> {noformat}
> Caused by: java.lang.AssertionError: Event never occurred after 60000 ms:
> Expected counterUpdate to be 2. Instead it was 6
> {noformat}
> My guess is that between the time the MessageDispatcher is told to wait and
> the test actually runs, at least 5 seconds elapses, and the conflation
> doesn't occur. I'll make these changes to the test so that next time it
> happens, we can see if thats the case.
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