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From "Brandon Williams (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-6272) sstableloader data distribution is broken since 1.2.7
Date Wed, 30 Oct 2013 21:13:29 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-6272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13809638#comment-13809638
] 

Brandon Williams commented on CASSANDRA-6272:
---------------------------------------------

Pushed, thanks!

> sstableloader data distribution is broken since 1.2.7
> -----------------------------------------------------
>
>                 Key: CASSANDRA-6272
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6272
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Tools
>            Reporter: Sam Tunnicliffe
>            Assignee: Sam Tunnicliffe
>            Priority: Minor
>             Fix For: 1.2.12
>
>         Attachments: 0001-CASSANDRA-6272-Load-or-build-a-real-IndexSummary-in-.patch,
SSTableReaderTest-for-2.0.patch, SSTableReaderTest-for-trunk.patch
>
>
> Running sstableloader on 1.2.10+ results in radically different distribution compared
with earlier versions. It looks as though the 'bare-bones' IndexSummary created in SSTR.loadForBatch
is the cause (CASSANDRA-5555); because it contains only a single entry, we end up with the
wrong segment of the index file in SSTR.getPosition (its position is always 0),  so only the
first segment of the index file is considered when searching for the range's position.
> This doesn't affect  2.0/trunk



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