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From "Brandon Williams (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-2086) array index out of bounds on compact & repair
Date Tue, 01 Feb 2011 15:50:28 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-2086?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12989258#comment-12989258
] 

Brandon Williams commented on CASSANDRA-2086:
---------------------------------------------

If the node has never successfully compacted after streaming, a simple reboot will work.

> array index out of bounds on compact & repair
> ---------------------------------------------
>
>                 Key: CASSANDRA-2086
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2086
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 0.7.0
>            Reporter: Jeffrey Damick
>            Priority: Critical
>
> We're seeing array index out of bounds exceptions (below) on 0.7.0 when running compact.
>  
> The repair seems to hang indefinitely on all nodes (also throws index oob).
> On 1 node in our cluster (running compact):
>  INFO [CompactionExecutor:1] 2011-01-31 20:07:12,140 CompactionManager.java (line 272)
Compacting [org.apache.cassandra.io.sstable.SSTableReader(path='/var/lib/cassandra/data/xxxxxxxx/XXXXXXX-e-318-Data.db'),org.apache.cassandra.io.sstable.SSTableReader(path='/var/lib/cassandra/data/xxxxxxxxxxx/xxxxxxxxxxx-e-317-Data.db')]
> ERROR [CompactionExecutor:1] 2011-01-31 20:07:12,295 AbstractCassandraDaemon.java (line
91) Fatal exception in thread Thread[CompactionExecutor:1,1,main]
> java.lang.ArrayIndexOutOfBoundsException: 7
>     at org.apache.cassandra.db.marshal.TimeUUIDType.compareTimestampBytes(TimeUUIDType.java:58)
>     at org.apache.cassandra.db.marshal.TimeUUIDType.compare(TimeUUIDType.java:45)
>     at org.apache.cassandra.db.marshal.TimeUUIDType.compare(TimeUUIDType.java:29)
>     at java.util.concurrent.ConcurrentSkipListMap$ComparableUsingComparator.compareTo(Unknown
Source)
>     at java.util.concurrent.ConcurrentSkipListMap.doPut(Unknown Source)
>     at java.util.concurrent.ConcurrentSkipListMap.putIfAbsent(Unknown Source)
> And another node (running compact):
>  INFO [StreamStage:1] 2011-01-31 20:03:48,663 StreamOutSession.java (line 174) Streaming
to /xxx.xxx.xxx.xxx
> ERROR [CompactionExecutor:1] 2011-01-31 20:03:52,587 AbstractCassandraDaemon.java (line
91) Fatal exception in thread Thread[CompactionExecutor:1,1,main]
> java.lang.ArrayIndexOutOfBoundsException
> ERROR [CompactionExecutor:1] 2011-01-31 20:03:54,216 AbstractCassandraDaemon.java (line
91) Fatal exception in thread Thread[CompactionExecutor:1,1,main]
> java.lang.ArrayIndexOutOfBoundsException: 6
>         at org.apache.cassandra.db.marshal.TimeUUIDType.compareTimestampBytes(TimeUUIDType.java:56)
>         at org.apache.cassandra.db.marshal.TimeUUIDType.compare(TimeUUIDType.java:45)
>         at org.apache.cassandra.db.marshal.TimeUUIDType.compare(TimeUUIDType.java:29)
>         at java.util.concurrent.ConcurrentSkipListMap$ComparableUsingComparator.compareTo(Unknown
Source)
>         at java.util.concurrent.ConcurrentSkipListMap.doPut(Unknown Source)
>         at java.util.concurrent.ConcurrentSkipListMap.putIfAbsent(Unknown Source)
>         at org.apache.cassandra.db.ColumnFamily.addColumn(ColumnFamily.java:218)
> Is this related to: CASSANDRA-1959 or CASSANDRA-1992?
> This has left some of my data in an unrecoverable & inaccessible state - how can
i repair this situation? 

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