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Posted to common-issues@hadoop.apache.org by "Allen Wittenauer (JIRA)" <ji...@apache.org> on 2011/06/13 23:31:47 UTC

[jira] [Updated] (HADOOP-6835) Support concatenated gzip files

     [ https://issues.apache.org/jira/browse/HADOOP-6835?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Allen Wittenauer updated HADOOP-6835:
-------------------------------------

    Summary: Support concatenated gzip files  (was: Support concatenated gzip and bzip2 files)

> Support concatenated gzip files
> -------------------------------
>
>                 Key: HADOOP-6835
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6835
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: io
>    Affects Versions: 0.20.2
>            Reporter: Tom White
>            Assignee: Greg Roelofs
>             Fix For: 0.22.0
>
>         Attachments: C6835-9.patch, HADOOP-6835.v3.yahoo-0.20.2xx-branch.patch, HADOOP-6835.v4.trunk-hadoop-common.patch, HADOOP-6835.v4.trunk-hadoop-mapreduce.patch, HADOOP-6835.v4.yahoo-0.20.2xx-branch.patch, HADOOP-6835.v5.trunk-hadoop-common.patch, HADOOP-6835.v6.trunk-hadoop-common.patch, HADOOP-6835.v7.trunk-hadoop-common.patch, HADOOP-6835.v8.trunk-hadoop-common.patch, HADOOP-6835.v9.yahoo-0.20.2xx-branch.patch, MR-469.v2.yahoo-0.20.2xx-branch.patch, grr-hadoop-common.dif.20100614c, grr-hadoop-mapreduce.dif.20100614c
>
>
> When running MapReduce with concatenated gzip files as input only the first part is read, which is confusing, to say the least. Concatenated gzip is described in http://www.gnu.org/software/gzip/manual/gzip.html#Advanced-usage and in http://www.ietf.org/rfc/rfc1952.txt. (See original report at http://www.nabble.com/Problem-with-Hadoop-and-concatenated-gzip-files-to21383097.html)

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