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https://issues.apache.org/jira/browse/CASSANDRA-1306?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nate McCall updated CASSANDRA-1306:
-----------------------------------

    Component/s: Core

> Forcing a major compaction on an CF with indexed sub columns occasionally 
> causes an error
> -----------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-1306
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1306
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.7
>            Reporter: Nate McCall
>
> Note that is is a function of ColumnFamilyStore's forceMajorCompaction
> ERROR 14:33:31,430 Uncaught exception in thread 
> Thread[CompactionExecutor:1,5,main]
> java.util.concurrent.ExecutionException: java.io.IOException: Keys must be 
> written in ascending order.
>       at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
>       at java.util.concurrent.FutureTask.get(FutureTask.java:83)
>       at 
> org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor.afterExecute(DebuggableThreadPoolExecutor.java:87)
>       at 
> org.apache.cassandra.db.CompactionManager$CompactionExecutor.afterExecute(CompactionManager.java:659)
>       at 
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:888)
>       at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>       at java.lang.Thread.run(Thread.java:619)
> Caused by: java.io.IOException: Keys must be written in ascending order.
>       at 
> org.apache.cassandra.io.sstable.SSTableWriter.beforeAppend(SSTableWriter.java:69)
>       at 
> org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:86)
>       at 
> org.apache.cassandra.db.CompactionManager.doCompaction(CompactionManager.java:350)
>       at 
> org.apache.cassandra.db.CompactionManager$5.call(CompactionManager.java:227)
>       at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
>       at java.util.concurrent.FutureTask.run(FutureTask.java:138)
>       at 
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>       ... 2 more

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