[jboss-jira] [JBoss JIRA] (JGRP-2231) Intermittent NPE in JGroups GMS#up on shutdown

[Bela Ban (JIRA)]

     [ https://issues.jboss.org/browse/JGRP-2231?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bela Ban updated JGRP-2231:
---------------------------
    Affects Version/s: 4.0.8
                           (was: 4.0.9)


> Intermittent NPE in JGroups GMS#up on shutdown
> ----------------------------------------------
>
>                 Key: JGRP-2231
>                 URL: https://issues.jboss.org/browse/JGRP-2231
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 3.6.14, 4.0.8
>            Reporter: Radoslav Husar
>            Assignee: Radoslav Husar
>            Priority: Minor
>             Fix For: 4.0.9
>
>         Attachments: server.log, standalone-ha.xml
>
>
> During mod_cluster failover due application undeploy on Solaris 10 intermittently I can see NPE \[1\].
> I've seen it already several times during failover with HTTPD with mod_cluster as balancer and EAP 7.1 as workers where their communication works over SSL which is configured using elytron on EAP side. I have seen the issue on Solaris 10 sparc (two different slaves).
> \[1\]
> {noformat}
> 2017-10-27 12:12:07,546 ERROR [org.jgroups.protocols.pbcast.GMS] (thread-2) JGRP000027: failed passing message up: java.lang.NullPointerException
> 	at org.jgroups.protocols.pbcast.GMS.up(GMS.java:895)
> 	at org.jgroups.stack.Protocol.up(Protocol.java:418)
> 	at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:294)
> 	at org.jgroups.protocols.UNICAST3.up(UNICAST3.java:487)
> 	at org.jgroups.protocols.pbcast.NAKACK2.deliverBatch(NAKACK2.java:989)
> 	at org.jgroups.protocols.pbcast.NAKACK2.removeAndPassUp(NAKACK2.java:919)
> 	at org.jgroups.protocols.pbcast.NAKACK2.handleMessage(NAKACK2.java:851)
> 	at org.jgroups.protocols.pbcast.NAKACK2.up(NAKACK2.java:611)
> 	at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:155)
> 	at org.jgroups.protocols.FD_ALL.up(FD_ALL.java:200)
> 	at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:325)
> 	at org.jgroups.protocols.MERGE3.up(MERGE3.java:292)
> 	at org.jgroups.protocols.Discovery.up(Discovery.java:296)
> 	at org.jgroups.protocols.TP.passMessageUp(TP.java:1657)
> 	at org.jgroups.protocols.TP$SingleMessageHandler.run(TP.java:1872)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at org.jboss.as.clustering.jgroups.ClassLoaderThreadFactory.lambda$newThread$0(ClassLoaderThreadFactory.java:52)
> 	at java.lang.Thread.run(Thread.java:748)
> {noformat}



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