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https://issues.apache.org/jira/browse/CASSANDRA-10089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14996159#comment-14996159
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Stefania commented on CASSANDRA-10089:
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[~jkni] sorry for the delay, I got side-tracked by another ticket.
I've implemented the proposed copy-on-write of the map using an atomic
reference. I've limited access to it best I could but we are still exposing the
entry set for callers to iterate over it. Further, we no longer log an error if
we have no tokens in status SHUTDOWN.
CI is still running.
> NullPointerException in Gossip handleStateNormal
> ------------------------------------------------
>
> Key: CASSANDRA-10089
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10089
> Project: Cassandra
> Issue Type: Bug
> Reporter: Stefania
> Assignee: Stefania
> Fix For: 2.1.x, 2.2.x, 3.1
>
> Attachments: node1_debug.log, node2_debug.log, node3_debug.log
>
>
> Whilst comparing dtests for CASSANDRA-9970 I found [this failing
> dtest|http://cassci.datastax.com/view/Dev/view/blerer/job/blerer-9970-dtest/lastCompletedBuild/testReport/consistency_test/TestConsistency/short_read_test/]
> in 2.2:
> {code}
> Unexpected error in node1 node log: ['ERROR [GossipStage:1] 2015-08-14
> 15:39:57,873 CassandraDaemon.java:183 - Exception in thread
> Thread[GossipStage:1,5,main] java.lang.NullPointerException: null \tat
> org.apache.cassandra.service.StorageService.getApplicationStateValue(StorageService.java:1731)
> ~[main/:na] \tat
> org.apache.cassandra.service.StorageService.getTokensFor(StorageService.java:1804)
> ~[main/:na] \tat
> org.apache.cassandra.service.StorageService.handleStateNormal(StorageService.java:1857)
> ~[main/:na] \tat
> org.apache.cassandra.service.StorageService.onChange(StorageService.java:1629)
> ~[main/:na] \tat
> org.apache.cassandra.service.StorageService.onJoin(StorageService.java:2312)
> ~[main/:na] \tat
> org.apache.cassandra.gms.Gossiper.handleMajorStateChange(Gossiper.java:1025)
> ~[main/:na] \tat
> org.apache.cassandra.gms.Gossiper.applyStateLocally(Gossiper.java:1106)
> ~[main/:na] \tat
> org.apache.cassandra.gms.GossipDigestAck2VerbHandler.doVerb(GossipDigestAck2VerbHandler.java:49)
> ~[main/:na] \tat
> org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:66)
> ~[main/:na] \tat
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> ~[na:1.7.0_80] \tat
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> ~[na:1.7.0_80] \tat java.lang.Thread.run(Thread.java:745) ~[na:1.7.0_80]']
> {code}
> I wasn't able to find it on unpatched branches but it is clearly not related
> to CASSANDRA-9970, if anything it could have been a side effect of
> CASSANDRA-9871.
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