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https://issues.apache.org/jira/browse/CASSANDRA-6285?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13893894#comment-13893894
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Pavel Yaskevich commented on CASSANDRA-6285:
--------------------------------------------

[~rhatch] The 0 frame size you are seeing is a known Thrift problem which 
happens even with stock server implementations, they are working on it but it 
shouldn't cause any problems as such frames are ignored (it could also happen 
if something does e.g. telnet to the thrift port). I'm not sure that this is a 
problem with HsHa directly but might be unveiled by the increased throughput 
you can get with HsHa comparing to sync, it looks exactly like 
https://issues.apache.org/jira/browse/CASSANDRA-4687 (as [~brandon.kearby] 
mentioned) so can you try disabling key_cache and try uploading again with hsha?

> LCS compaction failing with Exception
> -------------------------------------
>
>                 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: Tyler Hobbs
>             Fix For: 2.0.6
>
>         Attachments: compaction_test.py
>
>
> 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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