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https://issues.apache.org/jira/browse/HADOOP-3876?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12620592#action_12620592
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Tom White commented on HADOOP-3876:
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+1 on subpackages (either in src/mapred or src/contrib).
Also, I think that we need to split out the MapReduce daemons into a server
package (HADOOP-3916) - which we won't publish javadoc for - before we can do
HADOOP-3822 properly. This argues for committing the fair scheduler HADOOP-3746
as a contrib package (as it currently stands) - this can be done now, or into
core after HADOOP-3916 and HADOOP-3822 have been done.
> Hadoop Core should support source filesfor multiple schedulers
> --------------------------------------------------------------
>
> Key: HADOOP-3876
> URL: https://issues.apache.org/jira/browse/HADOOP-3876
> Project: Hadoop Core
> Issue Type: New Feature
> Reporter: Vivek Ratan
>
> Besides the default JT scheduling algorithm, there is work going on with at
> least two more schedulers (HADOOP-3445, HADOOP-3746). HADOOP-3412 makes it
> easier to plug in new schedulers into the JT. Where do we place the source
> files for various schedulers so that it's easy for users to choose their
> scheduler of choice during deployment, and easy for developers to add in more
> schedulers into the framework (without inundating it).
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