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From: "Marcus Eriksson (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (CASSANDRA-8211) Overlapping sstables in L1+
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    [ https://issues.apache.org/jira/browse/CASSANDRA-8211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14246355#comment-14246355 ] 

Marcus Eriksson commented on CASSANDRA-8211:
--------------------------------------------

yes it will be in 2.1.3

> Overlapping sstables in L1+
> ---------------------------
>
>                 Key: CASSANDRA-8211
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8211
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Marcus Eriksson
>            Assignee: Marcus Eriksson
>             Fix For: 2.0.12, 2.1.3
>
>         Attachments: 0001-Avoid-overlaps-in-L1-v2.patch, 0001-Avoid-overlaps-in-L1.patch
>
>
> Seems we have a bug that can create overlapping sstables in L1:
> {code}
> WARN [main] 2014-10-28 04:09:42,295 LeveledManifest.java (line 164) At level 2, SSTableReader(path='<sstable>') [DecoratedKey(2838397575996053472, 00
> 10000000001111000000000000066059b200001000000000066059b200000000111100000000100000000000004000000000000000000100), DecoratedKey(5516674013223138308, 001000000000111100000000000000ff2d160000100000000000ff2d1600000
> 000111100000000100000000000004000000000000000000100)] overlaps SSTableReader(path='<sstable>') [DecoratedKey(2839992722300822584, 00100000000011110000
> 0000000000229ad20000100000000000229ad200000000111100000000100000000000004000000000000000000100), DecoratedKey(5532836928694021724, 0010000000001111000000000000034b05a600001000000000034b05a600000000111100000000100
> 000000000004000000000000000000100)].  This could be caused by a bug in Cassandra 1.1.0 .. 1.1.3 or due to the fact that you have dropped sstables from another node into the data directory. Sending back to L0.  If
>  you didn't drop in sstables, and have not yet run scrub, you should do so since you may also have rows out-of-order within an sstable
> {code}
> Which might manifest itself during compaction with this exception:
> {code}
> ERROR [CompactionExecutor:3152] 2014-10-28 00:24:06,134 CassandraDaemon.java (line 199) Exception in thread Thread[CompactionExecutor:3152,1,main]
> java.lang.RuntimeException: Last written key DecoratedKey(5516674013223138308, 001000000000111100000000000000ff2d160000100000000000ff2d1600000000111100000000100000000000004000000000000000000100) >= current key DecoratedKey(2839992722300822584, 001000000000111100000000000000229ad20000100000000000229ad200000000111100000000100000000000004000000000000000000100) writing into <sstable>
> {code}
> since we use LeveledScanner when compacting (the backing sstable scanner might go beyond the start of the next sstable scanner)



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