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https://issues.apache.org/jira/browse/CASSANDRA-12238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15934750#comment-15934750
 ] 

Alex Petrov commented on CASSANDRA-12238:
-----------------------------------------

Right, sorry, I didn't notice the timestamp. I'll close with can't reproduce 
for now.

> Unexpected exception during request java.lang.IndexOutOfBoundsException: null
> -----------------------------------------------------------------------------
>
>                 Key: CASSANDRA-12238
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12238
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: datastax-ddc-3.7.0, CentOS 7, x86, JDK 1.8.0u91
>            Reporter: Gábor Auth
>
> Our two DCs and eight nodes cluster throws sometimes:
> {code}
> ERROR [SharedPool-Worker-25] 2016-07-19 16:22:14,643 ErrorMessage.java:338 - 
> Unexpected exception during request
> java.lang.IndexOutOfBoundsException: null
>         at java.nio.Buffer.checkIndex(Buffer.java:546) ~[na:1.8.0_91]
>         at java.nio.HeapByteBuffer.getShort(HeapByteBuffer.java:314) 
> ~[na:1.8.0_91]
>         at 
> org.apache.cassandra.db.context.CounterContext.headerLength(CounterContext.java:141)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.db.context.CounterContext.access$100(CounterContext.java:76)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.db.context.CounterContext$ContextState.<init>(CounterContext.java:758)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.db.context.CounterContext$ContextState.wrap(CounterContext.java:765)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.db.context.CounterContext.merge(CounterContext.java:271) 
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.db.Conflicts.mergeCounterValues(Conflicts.java:76) 
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at org.apache.cassandra.db.rows.Cells.reconcile(Cells.java:143) 
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.db.rows.Row$Merger$ColumnDataReducer.getReduced(Row.java:614)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.db.rows.Row$Merger$ColumnDataReducer.getReduced(Row.java:572)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.utils.MergeIterator$ManyToOne.consume(MergeIterator.java:217)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.utils.MergeIterator$ManyToOne.computeNext(MergeIterator.java:156)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.utils.AbstractIterator.hasNext(AbstractIterator.java:47) 
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at org.apache.cassandra.db.rows.Row$Merger.merge(Row.java:549) 
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.db.rows.UnfilteredRowIterators$UnfilteredRowMergeIterator$MergeReducer.getReduced(UnfilteredRowIterators.java:473)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.db.rows.UnfilteredRowIterators$UnfilteredRowMergeIterator$MergeReducer.getReduced(UnfilteredRowIterators.java:437)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.utils.MergeIterator$ManyToOne.consume(MergeIterator.java:217)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.utils.MergeIterator$ManyToOne.computeNext(MergeIterator.java:156)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.utils.AbstractIterator.hasNext(AbstractIterator.java:47) 
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.db.rows.UnfilteredRowIterators$UnfilteredRowMergeIterator.computeNext(UnfilteredRowIterators.java:419)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.db.rows.UnfilteredRowIterators$UnfilteredRowMergeIterator.computeNext(UnfilteredRowIterators.java:279)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.utils.AbstractIterator.hasNext(AbstractIterator.java:47) 
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.db.transform.BaseRows.hasNext(BaseRows.java:112) 
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.db.transform.FilteredRows.isEmpty(FilteredRows.java:30) 
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.db.transform.Filter.closeIfEmpty(Filter.java:49) 
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.db.transform.Filter.applyToPartition(Filter.java:22) 
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.db.transform.Filter.applyToPartition(Filter.java:6) 
> ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.db.transform.BasePartitions.hasNext(BasePartitions.java:76)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.cql3.statements.SelectStatement.process(SelectStatement.java:735)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.cql3.statements.SelectStatement.processResults(SelectStatement.java:410)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:363)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:237)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:78)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:208)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.cql3.QueryProcessor.processPrepared(QueryProcessor.java:486)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.cql3.QueryProcessor.processPrepared(QueryProcessor.java:463)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.transport.messages.ExecuteMessage.execute(ExecuteMessage.java:130)
>  ~[apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:507)
>  [apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:401)
>  [apache-cassandra-3.7.0.jar:3.7.0]
>         at 
> io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
>  [netty-all-4.0.36.Final.jar:4.0.36.Final]
>         at 
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:292)
>  [netty-all-4.0.36.Final.jar:4.0.36.Final]
>         at 
> io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:32)
>  [netty-all-4.0.36.Final.jar:4.0.36.Final]
>         at 
> io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:283)
>  [netty-all-4.0.36.Final.jar:4.0.36.Final]
>         at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
> [na:1.8.0_91]
>         at 
> org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:164)
>  [apache-cassandra-3.7.0.jar:3.7.0]
>         at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105) 
> [apache-cassandra-3.7.0.jar:3.7.0]
>         at java.lang.Thread.run(Thread.java:745) [na:1.8.0_91]
> {code}



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