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https://issues.apache.org/jira/browse/MAPREDUCE-5130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14091147#comment-14091147
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Ray Chiang commented on MAPREDUCE-5130:
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FYI, I've put in a simple unit test in YARN-2284 that does a comparison of
class member variables of a Configuration class and compares it against the
corresponding .xml file. There are another 123 variables in MRJobConfig that
are missing in mapred-default.xml. I'm sure some are missing due to being
deprecated or being commented out. I'm also sure that there are some more
actually missing, but it would take time to document properly. I wanted to get
this one out of the way before starting on any other documentation in the .xml
file.
> Add missing job config options to mapred-default.xml
> ----------------------------------------------------
>
> Key: MAPREDUCE-5130
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5130
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: documentation
> Affects Versions: 2.0.4-alpha
> Reporter: Sandy Ryza
> Assignee: Sandy Ryza
> Attachments: MAPREDUCE-5130-1.patch, MAPREDUCE-5130-1.patch,
> MAPREDUCE-5130-2.patch, MAPREDUCE-5130-3.patch, MAPREDUCE-5130-4.patch,
> MAPREDUCE-5130-5.patch, MAPREDUCE-5130-6.patch, MAPREDUCE-5130.patch,
> MAPREDUCE-5130.patch
>
>
> I came across that mapreduce.map.java.opts and mapreduce.reduce.java.opts
> were missing in mapred-default.xml. I'll do a fuller sweep to see what else
> is missing before posting a patch.
> List so far:
> mapreduce.map/reduce.java.opts
> mapreduce.map/reduce.memory.mb
> mapreduce.job.jvm.numtasks
> mapreduce.input.lineinputformat.linespermap
> mapreduce.task.combine.progress.records
> mapreduce.map/reduce.env
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