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From "Robert Coli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-6285) 2.0 HSHA server introduces corrupt data
Date Tue, 18 Mar 2014 15:19:47 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-6285?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13939363#comment-13939363
] 

Robert Coli commented on CASSANDRA-6285:
----------------------------------------

{quote}
... Telling the truth, I don't think that this is really fixed in 2.0.6.
{quote}
If hsha is irrevocably broken with data corruption risk in 2.0 line, could we either get it
wired off in the next point release, or some messaging in NEWS.txt that instructs people not
to use it? My preference is the former to cover upgraders who are foolish enough to not read
NEWS.txt; I am unable to see the benefit of leaving it usable if it is known broken.


> 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: 2.0.6
>
>         Attachments: 6285_testnotes1.txt, CASSANDRA-6285-disruptor-heap.patch, cassandra-attack-src.zip,
compaction_test.py, disruptor-high-cpu.patch, disruptor-memory-corruption.patch
>
>
> 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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