[infinispan-issues] [JBoss JIRA] (ISPN-2726) Sporadic NPE in KeyAffinityServiceImpl

[Galder Zamarreño (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-2726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12750841#comment-12750841 ] 

Galder Zamarreño commented on ISPN-2726:
----------------------------------------

Hmmm, odd. Having looked around no other call to getConsistentHash() expects some kind of null return, so it must be due to some race condition.

Could you tell us more about the circumstances under which this exception appears?

Maybe the call is happening during rehashing? If the issue is related to rehashing, we could maybe halt KeyAffinityServiceImpl generating keys while rehashing is on-going.
                
> Sporadic NPE in KeyAffinityServiceImpl
> --------------------------------------
>
>                 Key: ISPN-2726
>                 URL: https://issues.jboss.org/browse/ISPN-2726
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Distributed Cache
>    Affects Versions: 5.2.0.CR1
>            Reporter: Thomas Fromm
>            Assignee: Galder Zamarreño
>             Fix For: 5.2.0.Final
>
>
> The NPE appears not often, unfortunality with enabled TRACE logging, it never appears :-( I'll keep trying to get TRACEs.
> Exception in thread "pool-70-thread-1" java.lang.NullPointerException
>         at org.infinispan.affinity.KeyAffinityServiceImpl.getAddressForKey(KeyAffinityServiceImpl.java:347)
>         at org.infinispan.affinity.KeyAffinityServiceImpl.access$700(KeyAffinityServiceImpl.java:59)
>         at org.infinispan.affinity.KeyAffinityServiceImpl$KeyGeneratorWorker.generateKeys(KeyAffinityServiceImpl.java:270)
>         at org.infinispan.affinity.KeyAffinityServiceImpl$KeyGeneratorWorker.run(KeyAffinityServiceImpl.java:242)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
>         at java.lang.Thread.run(Thread.java:722)

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira