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Posted to common-issues@hadoop.apache.org by "Harsh J (JIRA)" <ji...@apache.org> on 2013/06/19 07:33:20 UTC

[jira] [Commented] (HADOOP-6837) Support for LZMA compression

    [ https://issues.apache.org/jira/browse/HADOOP-6837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13687627#comment-13687627 ] 

Harsh J commented on HADOOP-6837:
---------------------------------

FB's hadoop-0.20 seems to have a working implementation of this, although I do not know results of its stability yet: https://github.com/facebook/hadoop-20/blob/master/src/core/org/apache/hadoop/io/compress/LzmaCodec.java (and others).
                
> Support for LZMA compression
> ----------------------------
>
>                 Key: HADOOP-6837
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6837
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: io
>            Reporter: Nicholas Carlini
>            Assignee: Nicholas Carlini
>         Attachments: HADOOP-6837-lzma-1-20100722.non-trivial.pseudo-patch, HADOOP-6837-lzma-1-20100722.patch, HADOOP-6837-lzma-2-20100806.patch, HADOOP-6837-lzma-3-20100809.patch, HADOOP-6837-lzma-4-20100811.patch, HADOOP-6837-lzma-c-20100719.patch, HADOOP-6837-lzma-java-20100623.patch
>
>
> Add support for LZMA (http://www.7-zip.org/sdk.html) compression, which generally achieves higher compression ratios than both gzip and bzip2.

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