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Posted to commits@cassandra.apache.org by "Scott Fines (Commented) (JIRA)" <ji...@apache.org> on 2011/10/24 18:49:32 UTC
[jira] [Commented] (CASSANDRA-3400) ConcurrentModificationException
during nodetool repair
[ https://issues.apache.org/jira/browse/CASSANDRA-3400?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13134228#comment-13134228 ]
Scott Fines commented on CASSANDRA-3400:
----------------------------------------
A few notes as I discover them:
This error occurs every time the nodetool runs repair--repair effectively does not work on this node now.
> ConcurrentModificationException during nodetool repair
> ------------------------------------------------------
>
> Key: CASSANDRA-3400
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3400
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 0.8.7
> Environment: Suse Enterprise linux 11.4
> Reporter: Scott Fines
> Assignee: Sylvain Lebresne
> Priority: Minor
>
> When running a nodetool repair, the following exception can be thrown:
> ERROR [AntiEntropySessions:12] 2011-10-24 11:17:52,154 AbstractCassandraDaemon.java (line 139) Fatal exception in thread Thread[AntiEntropySessions:12,5,RMI Runtime]
> java.lang.RuntimeException: java.util.ConcurrentModificationException
> at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:34)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
> at java.util.concurrent.FutureTask.run(FutureTask.java:138)
> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:619)
> Caused by: java.util.ConcurrentModificationException
> at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
> at java.util.HashMap$KeyIterator.next(HashMap.java:828)
> at org.apache.cassandra.service.AntiEntropyService$RepairSession$RepairJob.sendTreeRequests(AntiEntropyService.java:784)
> at org.apache.cassandra.service.AntiEntropyService$RepairSession.runMayThrow(AntiEntropyService.java:680)
> at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
> ... 6 more
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