[jboss-jira] [JBoss JIRA] (WFLY-10391) [pretesting] ArrayIndexOutOfBoundsException on server using scattered cache

[Radoslav Husar (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-10391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13577963#comment-13577963 ] 

Radoslav Husar commented on WFLY-10391:
---------------------------------------

ISPN-9094 has not been backported to 9.2.x.

> [pretesting] ArrayIndexOutOfBoundsException on server using scattered cache 
> ----------------------------------------------------------------------------
>
>                 Key: WFLY-10391
>                 URL: https://issues.jboss.org/browse/WFLY-10391
>             Project: WildFly
>          Issue Type: Bug
>          Components: Clustering
>    Affects Versions: 13.0.0.Beta1
>            Reporter: Michal Vinkler
>            Assignee: Paul Ferraro
>
> We hit ArrayIndexOutOfBoundsException when running tests for RFE EAP7-867.
> EAP distribution was built from {{https://github.com/pferraro/wildfly/tree/scattered}} .
> Test description: Positive stress test (no failover), 4-node EAP cluster, clients: starting with 400 clients in the beginning, raising the number of clients to 6000 in the end of the test.
> Error occured on server dev215 around 7th iteration (can be seen in the performance report, link below):
> {code}
> [JBossINF] [0m[31m04:26:11,708 ERROR [stderr] (transport-thread--p15-t25) Exception in thread "transport-thread--p15-t25" java.lang.ArrayIndexOutOfBoundsException: 129
> [JBossINF] [0m[31m04:26:11,708 ERROR [stderr] (transport-thread--p15-t25) 	at org.infinispan.scattered.impl.ScatteredVersionManagerImpl.lambda$tryRegularInvalidations$4(ScatteredVersionManagerImpl.java:413)
> [JBossINF] [0m[31m04:26:11,708 ERROR [stderr] (transport-thread--p15-t25) 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> [JBossINF] [0m[31m04:26:11,708 ERROR [stderr] (transport-thread--p15-t25) 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> [JBossINF] [0m[31m04:26:11,708 ERROR [stderr] (transport-thread--p15-t25) 	at org.wildfly.clustering.service.concurrent.ClassLoaderThreadFactory.lambda$newThread$0(ClassLoaderThreadFactory.java:47)
> [JBossINF] [0m[31m04:26:11,708 ERROR [stderr] (transport-thread--p15-t25) 	at java.lang.Thread.run(Thread.java:748)
> {code} 
> Clients were getting "SocketTimeoutException: Read timed out" exceptions even before the ArrayIndexOutOfBoundsException ocurred, but also after. 
> Performance report (accessible only when connected to VPN): 
> http://download.eng.brq.redhat.com/scratch/mvinkler/reports/2018-04-19_15-10-14/stress.html
> One can observe that dev215 CPU usage and network usage dropped after 7th iteration. 
> dev215 server log link:
> https://jenkins.hosts.mwqe.eng.bos.redhat.com/hudson/job/eap-7x-stress-session-scattered-sync/13/console-dev215/



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