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https://issues.apache.org/jira/browse/HADOOP-5258?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Chansler updated HADOOP-5258:
------------------------------------
Release Note: New dfsAdmin command -printTopology shows topology as
understood by the namenode. (was: -printTopology added to dfsAdmin to print a
tree of the rack and datanode topology as seen by the namenode.)
Editorial pass over all release notes prior to publication of 0.21.
> Provide dfsadmin functionality to report on namenode's view of network
> topology
> -------------------------------------------------------------------------------
>
> Key: HADOOP-5258
> URL: https://issues.apache.org/jira/browse/HADOOP-5258
> Project: Hadoop Common
> Issue Type: New Feature
> Reporter: Jakob Homan
> Assignee: Jakob Homan
> Fix For: 0.21.0
>
> Attachments: HADOOP-5258.patch, HADOOP-5258.patch, HADOOP-5258.patch,
> HADOOP-5258.patch
>
>
> As discussed in HADOOP-4954, it would be useful to be able to query the
> namenode to its current view on the network topology of racks and datanodes.
> This would allow ops to compare what the namenode sees with what they expect
> it to see.
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