[jboss-jira] [JBoss JIRA] (WFLY-10274) NPE during server shutdown when using scattered cache

[Michal Vinkler (JIRA)]

Michal Vinkler created WFLY-10274:
-------------------------------------

             Summary: NPE during server shutdown when using scattered cache
                 Key: WFLY-10274
                 URL: https://issues.jboss.org/browse/WFLY-10274
             Project: WildFly
          Issue Type: Bug
          Components: Clustering
    Affects Versions: 13.0.0.Beta1
            Reporter: Michal Vinkler
            Assignee: Paul Ferraro


We hit NPE 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.

During clean server shutdown in the end of the test, server logged NPE and got stuck:
{code}
[JBossINF] [0m[31m07:55:57,643 ERROR [org.infinispan.scattered.impl.ScatteredStateConsumerImpl] (thread-200,ejb,dev214) ISPN000471: Failed processing values received from remote node during rebalance.: java.lang.NullPointerException
[JBossINF] 	at org.infinispan.scattered.impl.ScatteredStateConsumerImpl.applyValues(ScatteredStateConsumerImpl.java:505)
[JBossINF] 	at org.infinispan.scattered.impl.ScatteredStateConsumerImpl.lambda$getValuesAndApply$8(ScatteredStateConsumerImpl.java:475)
[JBossINF] 	at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760)
[JBossINF] 	at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736)
[JBossINF] 	at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
[JBossINF] 	at java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962)
[JBossINF] 	at org.infinispan.remoting.transport.AbstractRequest.complete(AbstractRequest.java:66)
[JBossINF] 	at org.infinispan.remoting.transport.impl.SingleTargetRequest.receiveResponse(SingleTargetRequest.java:56)
[JBossINF] 	at org.infinispan.remoting.transport.impl.SingleTargetRequest.onResponse(SingleTargetRequest.java:35)
[JBossINF] 	at org.infinispan.remoting.transport.impl.RequestRepository.addResponse(RequestRepository.java:53)
[JBossINF] 	at org.infinispan.remoting.transport.jgroups.JGroupsTransport.processResponse(JGroupsTransport.java:1304)
[JBossINF] 	at org.infinispan.remoting.transport.jgroups.JGroupsTransport.processMessage(JGroupsTransport.java:1207)
[JBossINF] 	at org.infinispan.remoting.transport.jgroups.JGroupsTransport.access$200(JGroupsTransport.java:123)
[JBossINF] 	at org.infinispan.remoting.transport.jgroups.JGroupsTransport$ChannelCallbacks.receive(JGroupsTransport.java:1342)
[JBossINF] 	at org.jgroups.JChannel.up(JChannel.java:819)
[JBossINF] 	at org.jgroups.fork.ForkProtocolStack.up(ForkProtocolStack.java:134)
[JBossINF] 	at org.jgroups.stack.Protocol.up(Protocol.java:340)
[JBossINF] 	at org.jgroups.protocols.FORK.up(FORK.java:134)
[JBossINF] 	at org.jgroups.protocols.FRAG3.up(FRAG3.java:166)
[JBossINF] 	at org.jgroups.protocols.FlowControl.up(FlowControl.java:343)
[JBossINF] 	at org.jgroups.protocols.FlowControl.up(FlowControl.java:343)
[JBossINF] 	at org.jgroups.protocols.pbcast.GMS.up(GMS.java:864)
[JBossINF] 	at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:240)
[JBossINF] 	at org.jgroups.protocols.UNICAST3.deliverMessage(UNICAST3.java:1002)
[JBossINF] 	at org.jgroups.protocols.UNICAST3.handleDataReceived(UNICAST3.java:728)
[JBossINF] 	at org.jgroups.protocols.UNICAST3.up(UNICAST3.java:383)
[JBossINF] 	at org.jgroups.protocols.pbcast.NAKACK2.up(NAKACK2.java:600)
[JBossINF] 	at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:119)
[JBossINF] 	at org.jgroups.protocols.FD_ALL.up(FD_ALL.java:199)
[JBossINF] 	at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:252)
[JBossINF] 	at org.jgroups.protocols.MERGE3.up(MERGE3.java:276)
[JBossINF] 	at org.jgroups.protocols.Discovery.up(Discovery.java:267)
[JBossINF] 	at org.jgroups.protocols.TP.passMessageUp(TP.java:1248)
[JBossINF] 	at org.jgroups.util.SubmitToThreadPool$SingleMessageHandler.run(SubmitToThreadPool.java:87)
[JBossINF] 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[JBossINF] 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
[JBossINF] 	at org.jboss.as.clustering.jgroups.ClassLoaderThreadFactory.lambda$newThread$0(ClassLoaderThreadFactory.java:52)
[JBossINF] 	at java.lang.Thread.run(Thread.java:748)
[JBossINF] 
{code} 

Server link:
https://jenkins.hosts.mwqe.eng.bos.redhat.com/hudson/job/eap-7x-stress-session-scattered-sync/14/console-dev214/




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