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From "Stu Hood (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-857) AssertionError in MappedFileDataInput.skipBytes when slicing a large number of keys
Date Fri, 19 Mar 2010 22:16:27 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-857?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12847615#action_12847615
] 

Stu Hood commented on CASSANDRA-857:
------------------------------------

+1 Looks good.

> AssertionError in MappedFileDataInput.skipBytes when slicing a large number of keys
> -----------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-857
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-857
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.6
>         Environment: debian, amd64, sun java 1.6.0_12
>            Reporter: Robert Edmonds
>            Assignee: Jonathan Ellis
>             Fix For: 0.6
>
>         Attachments: 857.txt, 857.txt
>
>
> i'm getting the following error when performing a range query that is supposed to return
a large number of keys:
> ERROR [ROW-READ-STAGE:9] 2010-03-07 03:54:49,672 CassandraDaemon.java (line 78) Fatal
exception in thread Thread[ROW-READ-STAGE:9,5,main]
> java.lang.AssertionError
> 	at org.apache.cassandra.io.util.MappedFileDataInput.skipBytes(MappedFileDataInput.java:104)
> 	at org.apache.cassandra.io.SSTableReader.getPosition(SSTableReader.java:382)
> 	at org.apache.cassandra.io.SSTableReader.getFileDataInput(SSTableReader.java:481)
> 	at org.apache.cassandra.db.filter.SSTableSliceIterator.<init>(SSTableSliceIterator.java:54)
> 	at org.apache.cassandra.db.filter.SliceQueryFilter.getSSTableColumnIterator(SliceQueryFilter.java:63)
> 	at org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:851)
> 	at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:771)
> 	at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:740)
> 	at org.apache.cassandra.db.ColumnFamilyStore.getRangeSlice(ColumnFamilyStore.java:1040)
> 	at org.apache.cassandra.service.RangeSliceVerbHandler.doVerb(RangeSliceVerbHandler.java:41)
> 	at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:40)
> 	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)

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