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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-1851) Map output compression codec cannot be set independently of job output compression codec
Date Sun, 30 Sep 2007 13:29:50 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-1851?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy updated HADOOP-1851:
----------------------------------

    Attachment: HADOOP-1851_2_20070929.patch

Another go at this one... 

With this, one can do:

{noformat}
$ hadoop jar build/hadoop-0.15.0-dev-examples.jar randomwriter -Dmapred.output.compress=true
-Dmapred.output.compression.type=BLOCK -Dmapred.output.compression.codec=org.apache.hadoop.io.compress.LzoCodec
/rw/in

hadoop jar build/hadoop-0.15.0-dev-examples.jar sort -Dmapred.output.compress=true -Dmapred.output.compression.type=BLOCK
-Dmapred.output.compression.codec=org.apache.hadoop.io.compress.LzoCodec -Dmapred.map.output.compress=true
-Dmapred.map.output.compression.type=RECORD -Dmapred.map.output.compression.codec=org.apache.hadoop.io.compress.DefaultCodec
/rw/in /rw/out
{noformat}


> Map output compression codec cannot be set independently of job output compression codec
> ----------------------------------------------------------------------------------------
>
>                 Key: HADOOP-1851
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1851
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.14.1
>            Reporter: Riccardo
>            Assignee: Arun C Murthy
>             Fix For: 0.15.0
>
>         Attachments: HADOOP-1851_1_20070929.patch, HADOOP-1851_2_20070929.patch
>
>
> The property "mapred.output.compression.codec" is used when setting and getting the map
output compression codec in JobConf, thus making it impossible to use a different codec for
map outputs and overall job outputs.

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