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Posted to commits@cassandra.apache.org by "Brandon Williams (Jira)" <ji...@apache.org> on 2021/04/14 19:09:00 UTC
[jira] [Commented] (CASSANDRA-16588) NPE getting host_id in
Gossiper.isSafeForStartup
[ https://issues.apache.org/jira/browse/CASSANDRA-16588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17321265#comment-17321265 ]
Brandon Williams commented on CASSANDRA-16588:
----------------------------------------------
||patch||CI||
|[3.11|https://github.com/driftx/cassandra/tree/CASSANDRA-16588]|[!https://ci-cassandra.apache.org/job/Cassandra-devbranch/656/badge/icon!|https://ci-cassandra.apache.org/blue/organizations/jenkins/Cassandra-devbranch/detail/Cassandra-devbranch/656/pipeline]|
|[trunk|https://github.com/driftx/cassandra/tree/CASSANDRA-16588-trunk]|[!https://ci-cassandra.apache.org/job/Cassandra-devbranch/657/badge/icon!|https://ci-cassandra.apache.org/blue/organizations/jenkins/Cassandra-devbranch/detail/Cassandra-devbranch/657/pipeline]|
> NPE getting host_id in Gossiper.isSafeForStartup
> ------------------------------------------------
>
> Key: CASSANDRA-16588
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16588
> Project: Cassandra
> Issue Type: Bug
> Components: Cluster/Gossip
> Reporter: Brandon Williams
> Assignee: Brandon Williams
> Priority: Normal
> Fix For: 3.11.x, 4.0-rc
>
>
> As seen here: https://ci-cassandra.apache.org/job/Cassandra-devbranch/604/testReport/junit/org.apache.cassandra.distributed.upgrade/MixedModeGossipTest/testStatusFieldShouldExistInOldVersionNodesEdgeCase/
> {noformat}
> java.lang.NullPointerException
> at org.apache.cassandra.gms.Gossiper.isSafeForStartup(Gossiper.java:952)
> at org.apache.cassandra.service.StorageService.checkForEndpointCollision(StorageService.java:657)
> at org.apache.cassandra.service.StorageService.prepareToJoin(StorageService.java:933)
> at org.apache.cassandra.service.StorageService.initServer(StorageService.java:784)
> at org.apache.cassandra.service.StorageService.initServer(StorageService.java:729)
> at org.apache.cassandra.distributed.impl.Instance.lambda$startup$10(Instance.java:541)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
> at java.lang.Thread.run(Thread.java:748)
> {noformat}
> I believe what is happening is a GossipDigestAck has been queued to ack the shutdown state from the node on the seed, but isn't actually sent until the node has restarted and gone into shadow. Since the ack contains the node's IP, it assumes a host_id will be there but since this is not an actual shadow response, it is not.
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