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Posted to common-issues@hadoop.apache.org by "Hudson (Commented) (JIRA)" <ji...@apache.org> on 2012/01/15 06:26:43 UTC

[jira] [Commented] (HADOOP-7657) Add support for LZ4 compression

    [ https://issues.apache.org/jira/browse/HADOOP-7657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13186413#comment-13186413 ] 

Hudson commented on HADOOP-7657:
--------------------------------

Integrated in Hadoop-Hdfs-trunk-Commit #1617 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk-Commit/1617/])
    HADOOP-7975. Add LZ4 as an entry in the default codec list, missed by HADOOP-7657 (harsh)

harsh : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1231627
Files : 
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/resources/core-default.xml

                
> Add support for LZ4 compression
> -------------------------------
>
>                 Key: HADOOP-7657
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7657
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Mr Bsd
>            Assignee: Binglin Chang
>              Labels: compression
>             Fix For: 0.24.0, 0.23.1
>
>         Attachments: HADOOP-7657.lz4.v1.patch, HADOOP-7657.lz4.v2.patch, hadoop-7657.v3.txt
>
>
> According to several benchmark sites, LZ4 seems to overtake other fast compression algorithms, especially in the decompression speed area. The interface is also trivial to integrate (http://code.google.com/p/lz4/source/browse/trunk/lz4.h) and there is no license issue.

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