[infinispan-issues] [JBoss JIRA] (ISPN-6977) NumOwnersNodeCrashInSequenceTest random failures

[Dan Berindei (JIRA)]

Dan Berindei created ISPN-6977:
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             Summary: NumOwnersNodeCrashInSequenceTest random failures
                 Key: ISPN-6977
                 URL: https://issues.jboss.org/browse/ISPN-6977
             Project: Infinispan
          Issue Type: Bug
          Components: Core
    Affects Versions: 8.2.4.Final, 9.0.0.Alpha4
            Reporter: Dan Berindei
            Assignee: Dan Berindei
            Priority: Critical
             Fix For: 9.0.0.Beta1


The test (and {{NumOwnersNodeStopInSequenceTest}} as well) uses {{StateSequencerUtil.advanceOnInboundRpc()}}, which replaces the {{PerCacheInboundInvocationHandler}} and rewires all the components.

The problem is that rewiring {{StateConsumerImpl}} causes it to create a new {{SemaphoreCompletionService}}, but there's no synchronization when reading the field, a "background" task could finish on another thread and release the permit on the old {{SemaphoreCompletionService}} instance.



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