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

[Dan Berindei (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-6977?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dan Berindei updated ISPN-6977:
-------------------------------
              Status: Pull Request Sent  (was: Open)
    Git Pull Request: https://github.com/infinispan/infinispan/pull/4538


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