[jboss-jira] [JBoss JIRA] (JGRP-1800) OverlappingMergeTest testRegularMessageSending does not receive all expected mcast messages

[Bela Ban (JIRA)]

     [ https://issues.jboss.org/browse/JGRP-1800?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bela Ban updated JGRP-1800:
---------------------------

    Fix Version/s:     (was: 3.5)

    
> OverlappingMergeTest testRegularMessageSending does not receive all expected mcast messages
> -------------------------------------------------------------------------------------------
>
>                 Key: JGRP-1800
>                 URL: https://issues.jboss.org/browse/JGRP-1800
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 3.2.13
>         Environment: RHEL, Solairis
>            Reporter: Richard Achmatowicz
>            Assignee: Bela Ban
>             Fix For: 3.2.13
>
>
> testRegularMessageSending is a kind of smoke test for the stack used in OverlappingMergeTest: 
> - three channels a,b,c are created with a particular stack (see modifyConfigs)
> - each of a,b,c sends 5 multicast messages to the group, with message payloads "1", "2", "3", "4", "5"
> - the receiver in each channel collects up the multicasts received
> - the test checks that all 15 messages are received by each of the channels, and an assertion error is thrown is this is not the case
> This test is failing occasionally. An example of the error:
> {noformat}
> Error Message
> (C) num_mcasts=C: 1 C: 2 C: 3 C: 4 C: 5 A: 1 B: 1 A: 2 B: 2 B: 3 B: 4 A: 4 B: 5 A: 5  expected: 15)
> Stacktrace
> java.lang.AssertionError 
> at org.jgroups.tests.OverlappingMergeTest.checkReceivedMessages(OverlappingMergeTest.java:476) 
> at org.jgroups.tests.OverlappingMergeTest.testRegularMessageSending(OverlappingMergeTest.java:66) 
> {noformat}
> This assertion error indicates that multicast #3 was not received from A by C.
> This is a very simple scenario and failures should not be occurring. I mention this error as there are other merge tests, namely:
> * testOverlappingMergeWithBC
> * testOverlappingMergeWithABC
> which are more complex, but when we look at their failures, they fail on an initial step similar to the one described above.

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