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Date: Sat, 12 Mar 2011 09:27:59 +0000 (UTC)
From: "Jason Harvey (JIRA)" <jira@apache.org>
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Subject: [jira] Commented: (CASSANDRA-2309) Scrub resulting in "Keys must be
 written in ascending order" exception
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    [ https://issues.apache.org/jira/browse/CASSANDRA-2309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13006011#comment-13006011 ] 

Jason Harvey commented on CASSANDRA-2309:
-----------------------------------------

Unfortunately sstable2json is also dying on this sstable :(

{code}
Exception in thread "main" java.lang.NullPointerException
        at org.apache.cassandra.db.columniterator.SSTableSliceIterator.hasNext(SSTableSliceIterator.java:108)
        at org.apache.cassandra.tools.SSTableExport.serializeColumns(SSTableExport.java:108)
        at org.apache.cassandra.tools.SSTableExport.serializeRow(SSTableExport.java:257)
        at org.apache.cassandra.tools.SSTableExport.serializeRow(SSTableExport.java:189)
        at org.apache.cassandra.tools.SSTableExport.export(SSTableExport.java:376)
        at org.apache.cassandra.tools.SSTableExport.export(SSTableExport.java:398)
        at org.apache.cassandra.tools.SSTableExport.export(SSTableExport.java:411)
        at org.apache.cassandra.tools.SSTableExport.main(SSTableExport.java:469)
{code}

Is this due to an issue with the sstable, or is it a separate bug?

> Scrub resulting in "Keys must be written in ascending order" exception
> ----------------------------------------------------------------------
>
>                 Key: CASSANDRA-2309
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2309
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 0.7.3
>            Reporter: Jason Harvey
>
> Getting the following when I try to scrub. The SSTable causing it is over a gig. Trying to repro on smaller tables so I have something to upload.
> {code}
> DEBUG [CompactionExecutor:1] 2011-03-10 12:07:13,264 CompactionManager.java (line 543) Reading row at 552076476
> DEBUG [CompactionExecutor:1] 2011-03-10 12:07:13,265 CompactionManager.java (line 552) row 6c6173745f636f6d6d656e74735f74335f386c387633 is 168 bytes
> DEBUG [CompactionExecutor:1] 2011-03-10 12:07:13,265 CompactionManager.java (line 581) Index doublecheck: row 6c6173745f636f6d6d656e74735f74335f386c387633 is 168 bytes
>  INFO [CompactionExecutor:1] 2011-03-10 12:07:13,265 SSTableWriter.java (line 108) Last written key : DecoratedKey(125686934811414729670440675125192621396, 627975726c2833626333626339353363353762313133373331336461303233396438303534312c66692e676f73757065726d6f64656c2e636f6d2f70726f66696c65732f2f6170706c65747265713d3132373333393332313937363529)
>  INFO [CompactionExecutor:1] 2011-03-10 12:07:13,265 SSTableWriter.java (line 109) Current key : DecoratedKey(11163129555189411157074346827960371449, 6c6173745f636f6d6d656e74735f74335f386c387633)
>  INFO [CompactionExecutor:1] 2011-03-10 12:07:13,265 SSTableWriter.java (line 110) Writing into file /var/lib/cassandra/data/reddit/permacache-tmp-f-168492-Data.db
>  WARN [CompactionExecutor:1] 2011-03-10 12:07:13,265 CompactionManager.java (line 599) Non-fatal error reading row (stacktrace follows)
> java.io.IOException: Keys must be written in ascending order.
>         at org.apache.cassandra.io.sstable.SSTableWriter.beforeAppend(SSTableWriter.java:111)
>         at org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:128)
>         at org.apache.cassandra.db.CompactionManager.doScrub(CompactionManager.java:591)
>         at org.apache.cassandra.db.CompactionManager.access$600(CompactionManager.java:56)
>         at org.apache.cassandra.db.CompactionManager$3.call(CompactionManager.java:195)
>         at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:166)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
>         at java.lang.Thread.run(Thread.java:636)
> {code}

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