cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Scott Fines <Scott.Fi...@nisc.coop>
Subject ConcurrentModificationException during nodetool repair
Date Mon, 24 Oct 2011 16:23:46 GMT
Hello all,

Right now, I have 10 machines running Cassandra 0.8.7, and mostly they are working fine. However,
during a nodetool repair of one machine, I'm seeing:

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

Is this a situation where I need to perform some other maintenance task before running a repair?

Thanks for your help,

Scott Fines

Mime
View raw message