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From "Benedict (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-6948) Native & ReplicateOnWriteStage AssertionError: Callback already exists
Date Fri, 28 Mar 2014 14:51:17 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-6948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13950807#comment-13950807
] 

Benedict commented on CASSANDRA-6948:
-------------------------------------

These don't seem to go back to node startup? They both start with the exception, I would like
to see log info from before this happened, as this is almost certainly a delayed manifestation
of an earlier (potentially *much* earlier) problem

> Native & ReplicateOnWriteStage AssertionError: Callback already exists
> ----------------------------------------------------------------------
>
>                 Key: CASSANDRA-6948
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6948
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Keith Wright
>         Attachments: cassandra.yaml, system.log.1.gz, system.log.gz
>
>
> We are using the datastax driver and have seen the following exceptions appear periodically
in our cluster in "groups".  The client will gradually start sending less write requests to
the nodes where this occurs the most often.  This may be related to CASSANDRA-6476.  Exception
from logs:
> ERROR [Native-Transport-Requests:7636] 2014-03-28 13:32:10,638 ErrorMessage.java (line
222) Unexpected exception during request
> java.lang.AssertionError: Callback already exists for id -1665979622! (CallbackInfo(target=/10.106.160.84,
callback=org.apache.cassandra.service.WriteResponseHandler@5d36d8ea, serializer=org.apache.cassandra.db.WriteResponse$WriteResponseSerializer@6ed37f0b))
> 	at org.apache.cassandra.net.MessagingService.addCallback(MessagingService.java:549)
> 	at org.apache.cassandra.net.MessagingService.sendRR(MessagingService.java:601)
> 	at org.apache.cassandra.service.StorageProxy.mutateCounter(StorageProxy.java:984)
> 	at org.apache.cassandra.service.StorageProxy.mutate(StorageProxy.java:449)
> 	at org.apache.cassandra.service.StorageProxy.mutateWithTriggers(StorageProxy.java:524)
> 	at org.apache.cassandra.cql3.statements.ModificationStatement.executeWithoutCondition(ModificationStatement.java:521)
> 	at org.apache.cassandra.cql3.statements.ModificationStatement.execute(ModificationStatement.java:505)
> 	at org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:188)
> 	at org.apache.cassandra.cql3.QueryProcessor.processPrepared(QueryProcessor.java:358)
> 	at org.apache.cassandra.transport.messages.ExecuteMessage.execute(ExecuteMessage.java:131)
> 	at org.apache.cassandra.transport.Message$Dispatcher.messageReceived(Message.java:304)
> 	at org.jboss.netty.handler.execution.ChannelUpstreamEventRunnable.doRun(ChannelUpstreamEventRunnable.java:43)
> 	at org.jboss.netty.handler.execution.ChannelEventRunnable.run(ChannelEventRunnable.java:67)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> 	at java.lang.Thread.run(Thread.java:744)
> ERROR [ReplicateOnWriteStage:102766] 2014-03-28 13:32:10,638 CassandraDaemon.java (line
196) Exception in thread Thread[ReplicateOnWriteStage:102766,5,main]
> java.lang.AssertionError: Callback already exists for id -1665979620! (CallbackInfo(target=/10.106.160.84,
callback=org.apache.cassandra.service.WriteResponseHandler@3bdb1a75, serializer=org.apache.cassandra.db.WriteResponse$WriteResponseSerializer@6ed37f0b))
> 	at org.apache.cassandra.net.MessagingService.addCallback(MessagingService.java:549)
> 	at org.apache.cassandra.net.MessagingService.sendRR(MessagingService.java:601)
> 	at org.apache.cassandra.service.StorageProxy.sendToHintedEndpoints(StorageProxy.java:806)
> 	at org.apache.cassandra.service.StorageProxy$8$1.runMayThrow(StorageProxy.java:1074)
> 	at org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:1896)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> 	at java.lang.Thread.run(Thread.java:744)



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