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https://issues.apache.org/jira/browse/HADOOP-12283?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14647794#comment-14647794
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Junping Du commented on HADOOP-12283:
-------------------------------------
All branch-1 work has already been covered by HADOOP-8817, and get committed
with 4 following JIRAs that related to HADOOP-8817. The feature already
released in 1.2.0, will close this JIRA as duplicated.
> CLONE - Backport Network Topology Extension for Virtualization (HADOOP-8468)
> to branch-1
> ----------------------------------------------------------------------------------------
>
> Key: HADOOP-12283
> URL: https://issues.apache.org/jira/browse/HADOOP-12283
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: ha, io
> Affects Versions: 1.0.0
> Reporter: RacingDawn
> Assignee: Junping Du
> Labels: features
> Fix For: 1.2.0
>
> Attachments: HADOOP-8817-v2.patch, HADOOP-8817-v3.patch,
> HADOOP-8817-v4.patch, HADOOP-8817.patch
>
>
> HADOOP-8468 propose network topology changes for running on virtualized
> infrastructure, which includes:
> 1. Add "NodeGroup" layer in new NetworkTopology (also known as
> NetworkTopologyWithNodeGroup): HADOOP-8469, HADOOP-8470
> 2. Update Replica Placement/Removal Policy to reflect new topology layer:
> HDFS-3498, HDFS-3601
> 3. Update balancer policy:HDFS-3495
> 4. Update Task Scheduling Policy to reflect new topology layer and support
> the case that compute nodes (NodeManager or TaskTracker) and data nodes are
> separated into different VMs, but still benefit from physical host locality:
> YARN-18, YARN-19.
> This JIRA will address the backport work on branch-1 which will be divided
> into 4 issues/patches in related jira issues.
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