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From "Anupam Seth (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-8021) Hadoop ignores old-style config options for enabling compressed output when passed on from PIG
Date Fri, 03 Feb 2012 21:46:54 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-8021?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Anupam Seth updated HADOOP-8021:
--------------------------------

    Hadoop Flags:   (was: Reviewed)
    
> Hadoop ignores old-style config options for enabling compressed output when passed on
from PIG
> ----------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-8021
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8021
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: conf
>    Affects Versions: 0.23.1
>            Reporter: Anupam Seth
>            Assignee: Anupam Seth
>             Fix For: 0.23.1
>
>
> Hadoop seems to ignore the config options even though they are printed as deprecation
warnings in the log: mapred.output.compress and
> mapred.output.compression.codec
> - settings that work on 0.20 but not on 0.23
> mapred.output.compress=true
> mapred.output.compression.codec=org.apache.hadoop.io.compress.BZip2Codec
> - settings that work on 0.23
> mapreduce.output.fileoutputformat.compress=true
> mapreduce.output.fileoutputformat.compress.codec=org.apache.hadoop.io.compress.BZip2Codec
> This breaks backwards compatibility and causes existing jobs to fail.
> This was found to happen due to the JobSubmitter writing out the job.xml file with the
old-style configs and can be fixed by handdling deprecation before the file is written out.

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