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https://issues.apache.org/jira/browse/HADOOP-7993?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13194428#comment-13194428
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Hudson commented on HADOOP-7993:
--------------------------------
Integrated in Hadoop-Common-trunk-Commit #1601 (See
[https://builds.apache.org/job/Hadoop-Common-trunk-Commit/1601/])
HADOOP-7993. Hadoop ignores old-style config options for enabling
compressed output. (Anupam Seth via mahadev)
mahadev :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1236506
Files :
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/conf/TestDeprecatedKeys.java
> Hadoop ignores old-style config options for enabling compressed output
> ----------------------------------------------------------------------
>
> Key: HADOOP-7993
> URL: https://issues.apache.org/jira/browse/HADOOP-7993
> Project: Hadoop Common
> Issue Type: Bug
> Components: conf
> Affects Versions: 0.23.1
> Reporter: Anupam Seth
> Assignee: Anupam Seth
> Fix For: 0.23.1
>
> Attachments: HADOOP-7993_branch_0_23.patch,
> HADOOP-7993_branch_0_23.patch
>
>
> 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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