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Posted to mapreduce-issues@hadoop.apache.org by "Amar Kamat (JIRA)" <ji...@apache.org> on 2011/05/29 05:03:47 UTC
[jira] [Created] (MAPREDUCE-2542) [Gridmix] Add support for LZO
codec in Gridmix
[Gridmix] Add support for LZO codec in Gridmix
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Key: MAPREDUCE-2542
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2542
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: contrib/gridmix
Reporter: Amar Kamat
Fix For: 0.23.0
MAPREDUCE-2408 adds compression emulation support in Gridmix. It supports the commonly used default codec (i.e Gzip). It seems that even LZO codec shows similar pattern w.r.t dictionary-word-size and compression-ratio. It would be nice to emulate LZO codec in Gridmix.
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[jira] [Updated] (MAPREDUCE-2542) [Gridmix] Add support for LZO
codec in Gridmix
Posted by "Amar Kamat (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-2542?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Amar Kamat updated MAPREDUCE-2542:
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Attachment: compression-ratio-dictsize-500-data-100mb-lzo.png
Attaching a plot of dictionary-word-size to compression ratio for a fixed dictionary size of 500 words and fixed data size of 100mb. I will publish the text version of the table too which can be used for compiling the compression lookup table.
> [Gridmix] Add support for LZO codec in Gridmix
> ----------------------------------------------
>
> Key: MAPREDUCE-2542
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2542
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: contrib/gridmix
> Reporter: Amar Kamat
> Fix For: 0.23.0
>
> Attachments: compression-ratio-dictsize-500-data-100mb-lzo.png
>
>
> MAPREDUCE-2408 adds compression emulation support in Gridmix. It supports the commonly used default codec (i.e Gzip). It seems that even LZO codec shows similar pattern w.r.t dictionary-word-size and compression-ratio. It would be nice to emulate LZO codec in Gridmix.
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