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https://issues.apache.org/jira/browse/HADOOP-5199?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vivek Ratan updated HADOOP-5199:
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Description:
There are at least 3 Schedulers in Hadoop today: Default, Capacity, and
Fairshare. Over time, we're seeing a lot of functionality common to all three.
Many bug fixes, improvements to existing functionality, and new functionality
are applicable to all three schedulers. This trend seems to be getting
stronger, as we notice similar problems, solutions, and ideas. This is a
proposal to detect and consolidate such common functionality.
was:
There are at least 3 Schedulers in Hadoop today: Default, Capacity, and
Fairshare. Over time, we're seeing a lot of functionality common to all three.
Many bug fixes, improvements to existing functionality, and new functionality
are applicable to all three schedulers. This trend seems to be getting
stronger, as we notice similar problems, solutions, and ideas. This is a
proposal to detect and consolidate such common functionality, while at the same
time, allowing for differences in behavior and leaving the door open for other
schedulers to be built, as per HADOOP-3412.
> A proposal to merge common functionality of various Schedulers
> --------------------------------------------------------------
>
> Key: HADOOP-5199
> URL: https://issues.apache.org/jira/browse/HADOOP-5199
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Reporter: Vivek Ratan
> Attachments: 5199.1.patch
>
>
> There are at least 3 Schedulers in Hadoop today: Default, Capacity, and
> Fairshare. Over time, we're seeing a lot of functionality common to all
> three. Many bug fixes, improvements to existing functionality, and new
> functionality are applicable to all three schedulers. This trend seems to be
> getting stronger, as we notice similar problems, solutions, and ideas. This
> is a proposal to detect and consolidate such common functionality.
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