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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-5656) bzip2 codec can drop records when reading data in splits
Date Mon, 02 Dec 2013 15:42:39 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-5656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jason Lowe updated MAPREDUCE-5656:
----------------------------------

    Attachment: MAPREDUCE-5656-2.patch

Slightly updated patch to fix the spacing issue in SplitLineReader.

> bzip2 codec can drop records when reading data in splits
> --------------------------------------------------------
>
>                 Key: MAPREDUCE-5656
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5656
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 2.0.4-alpha, 0.23.8
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>            Priority: Critical
>         Attachments: HADOOP-9622-2.patch, HADOOP-9622-testcase.patch, HADOOP-9622.patch,
MAPREDUCE-5656-2.patch, MAPREDUCE-5656.patch, blockEndingInCR.txt.bz2, blockEndingInCRThenLF.txt.bz2
>
>
> Bzip2Codec.BZip2CompressionInputStream can cause records to be dropped when reading them
in splits based on where record delimiters occur relative to compression block boundaries.
> Thanks to [~knoguchi] for discovering this problem while working on PIG-3251.



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