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https://issues.apache.org/jira/browse/HADOOP-8820?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13496030#comment-13496030
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Tsz Wo (Nicholas), SZE commented on HADOOP-8820:
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Junping, thanks for the update. I also want to commit the HADOOP-8817 patch
directly. However, some parts of the patch is not yet committed to trunk.
Your original plan is to have separated patches for various components. I
think it is a good plan since it is easier to review the patches. Why don't we
stick with it?
Jing, thanks for helping out here.
> Backport HADOOP-8469 and HADOOP-8470: add "NodeGroup" layer in new
> NetworkTopology (also known as NetworkTopologyWithNodeGroup)
> -------------------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-8820
> URL: https://issues.apache.org/jira/browse/HADOOP-8820
> Project: Hadoop Common
> Issue Type: New Feature
> Components: net
> Affects Versions: 1.0.0
> Reporter: Junping Du
> Assignee: Junping Du
> Attachments: HADOOP-8820.b1.002.patch, HADOOP-8820.b1.003.patch,
> HADOOP-8820.patch
>
>
> This patch backport HADOOP-8469 and HADOOP-8470 to branch-1 and includes:
> 1. Make NetworkTopology class pluggable for extension.
> 2. Implement a 4-layer NetworkTopology class (named as
> NetworkTopologyWithNodeGroup) to use in virtualized environment (or other
> situation with additional layer between host and rack).
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