[infinispan-issues] [JBoss JIRA] (ISPN-2622) Random failure in RpcManagerMBeanTest

[Dan Berindei (JIRA)]

Dan Berindei created ISPN-2622:
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             Summary: Random failure in RpcManagerMBeanTest
                 Key: ISPN-2622
                 URL: https://issues.jboss.org/browse/ISPN-2622
             Project: Infinispan
          Issue Type: Bug
          Components: RPC
    Affects Versions: 5.2.0.Beta5
            Reporter: Dan Berindei
            Assignee: Mircea Markus
            Priority: Minor
             Fix For: 5.3.0.Final


The test records the replication counter in RpcManagerImpl at the start of the test and after a put operation, and asserts that it only changed by 1. Occasionally, the assertion fails:

{noformat}
java.lang.AssertionError: expected [1] but found [2]
	at org.testng.Assert.fail(Assert.java:89)
	at org.testng.Assert.failNotEquals(Assert.java:489)
	at org.testng.Assert.assertEquals(Assert.java:118)
	at org.testng.Assert.assertEquals(Assert.java:160)
	at org.infinispan.jmx.RpcManagerMBeanTest.testEnableJmxStats(RpcManagerMBeanTest.java:126)
{noformat}

This happens because replication counter is only incremented *after* a successful RPC. The test starts when the cluster is considered "formed", that is when all the nodes are included in the read CH on every node. But that doesn't mean that the RPCs pushing state have finished - a pushing node may still be waiting for a response and so it might increment its replication counter after the start of the test.

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