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https://issues.apache.org/jira/browse/CASSANDRA-6285?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14181789#comment-14181789
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Pavel Yaskevich commented on CASSANDRA-6285:
--------------------------------------------

[~ngrigoriev] No, native protocol is not using Thrift, which further confirms 
that it's cross transport problem, I think we should create a separate ticket 
to handle it.
[~sterligovak] Do you still have stacktrace for the NPE you've got while 
scrubbing?

> 2.0 HSHA server introduces corrupt data
> ---------------------------------------
>
>                 Key: CASSANDRA-6285
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6285
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: 4 nodes, shortly updated from 1.2.11 to 2.0.2
>            Reporter: David Sauer
>            Assignee: Pavel Yaskevich
>            Priority: Critical
>             Fix For: 2.0.8
>
>         Attachments: 6285_testnotes1.txt, 
> CASSANDRA-6285-disruptor-heap.patch, cassandra-attack-src.zip, 
> compaction_test.py, disruptor-high-cpu.patch, 
> disruptor-memory-corruption.patch, enable_reallocate_buffers.txt
>
>
> After altering everything to LCS the table OpsCenter.rollups60 amd one other 
> none OpsCenter-Table got stuck with everything hanging around in L0.
> The compaction started and ran until the logs showed this:
> ERROR [CompactionExecutor:111] 2013-11-01 19:14:53,865 CassandraDaemon.java 
> (line 187) Exception in thread Thread[CompactionExecutor:111,1,RMI Runtime]
> java.lang.RuntimeException: Last written key 
> DecoratedKey(1326283851463420237, 
> 37382e34362e3132382e3139382d6a7576616c69735f6e6f72785f696e6465785f323031335f31305f30382d63616368655f646f63756d656e74736c6f6f6b75702d676574426c6f6f6d46696c746572537061636555736564)
>  >= current key DecoratedKey(954210699457429663, 
> 37382e34362e3132382e3139382d6a7576616c69735f6e6f72785f696e6465785f323031335f31305f30382d63616368655f646f63756d656e74736c6f6f6b75702d676574546f74616c4469736b5370616365557365640b0f)
>  writing into 
> /var/lib/cassandra/data/OpsCenter/rollups60/OpsCenter-rollups60-tmp-jb-58656-Data.db
>       at 
> org.apache.cassandra.io.sstable.SSTableWriter.beforeAppend(SSTableWriter.java:141)
>       at 
> org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:164)
>       at 
> org.apache.cassandra.db.compaction.CompactionTask.runWith(CompactionTask.java:160)
>       at 
> org.apache.cassandra.io.util.DiskAwareRunnable.runMayThrow(DiskAwareRunnable.java:48)
>       at 
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
>       at 
> org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:60)
>       at 
> org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:59)
>       at 
> org.apache.cassandra.db.compaction.CompactionManager$6.runMayThrow(CompactionManager.java:296)
>       at 
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
>       at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
>       at java.util.concurrent.FutureTask.run(FutureTask.java:262)
>       at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>       at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>       at java.lang.Thread.run(Thread.java:724)
> Moving back to STC worked to keep the compactions running.
> Especialy my own Table i would like to move to LCS.
> After a major compaction with STC the move to LCS fails with the same 
> Exception.



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