[jira] [Updated] (HADOOP-8820) Backport HADOOP-8469 and HADOOP-8470: add "NodeGroup" layer in new NetworkTopology (also known as NetworkTopologyWithNodeGroup)

["Jing Zhao (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-8820?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jing Zhao updated HADOOP-8820:
------------------------------

    Attachment: HADOOP-8820.b1.002.patch

Hi Junping, maybe you're busy with other stuff. Since to address Nicholas's comments only needs simple changes, I just make these changes on your patch and run unit tests for you. All the test cases have passed on my machine. Thanks!
                
> 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.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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