[infinispan-issues] [JBoss JIRA] (ISPN-9483) TEST_PING doesn't trigger merge after JGroups 4.0.13 upgrade

[Dan Berindei (JIRA)]

Dan Berindei created ISPN-9483:
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             Summary: TEST_PING doesn't trigger merge after JGroups 4.0.13 upgrade
                 Key: ISPN-9483
                 URL: https://issues.jboss.org/browse/ISPN-9483
             Project: Infinispan
          Issue Type: Bug
          Components: Test Suite - Core
    Affects Versions: 9.4.0.CR1
            Reporter: Dan Berindei
            Assignee: Dan Berindei
             Fix For: 9.4.0.Final


In JGroups 4.0.13.Final, {{MERGE3}} started using the {{ASYNC_DISCOVERY_EVENT}} to find other members. {{TEST_PING}} doesn't handle the event correctly, at least when trace logging is enabled, and the merge never happens.

{{Discovery}} should handle the new event automatically, but it only works if the discovery protocol actively sends out {{GET_MBRS_REQ}} messages and receives {{GET_MBRS_RSP}} messages from other members. {{TEST_PING}} doesn't receive any {{GET_MBRS_RSP}} messages, so {{Discovery.addResponse()}} is never called.

This causes failures in all the tests that split the cluster and heal it, but for some reason CI isn't reporting the failures:

{noformat}
[OK:    70, KO:     1, SKIP:     0] Test failed: org.infinispan.distribution.rehash.RehashAfterPartitionMergeTest.testCachePartition[DIST_SYNC]
java.lang.RuntimeException: Timed out before caches had changed views ([[RehashAfterPartitionMergeTest[DIST_SYNC]-NodeB-45390], [RehashAfterPartitionMergeTest[DIST_SYNC]-NodeD-46782]]) to contain 2 members
	at org.infinispan.test.TestingUtil.blockUntilViewsChanged(TestingUtil.java:761)
	at org.infinispan.test.TestingUtil.blockUntilViewsChanged(TestingUtil.java:743)
	at org.infinispan.distribution.rehash.RehashAfterPartitionMergeTest.testCachePartition(RehashAfterPartitionMergeTest.java:67)
{noformat}

https://ci.infinispan.org/job/Infinispan/job/master/808/consoleFull




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