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Posted to hdfs-issues@hadoop.apache.org by "Kai Sasaki (JIRA)" <ji...@apache.org> on 2017/01/26 02:15:26 UTC
[jira] [Comment Edited] (HDFS-10534) NameNode WebUI should display
DataNode usage histogram
[ https://issues.apache.org/jira/browse/HDFS-10534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15839046#comment-15839046 ]
Kai Sasaki edited comment on HDFS-10534 at 1/26/17 2:14 AM:
------------------------------------------------------------
[~zhz] Thanks for reviewing! It depends on DataNode metrics so I can rebase and resolve conflict if DataNode provides these metrics too in 2.7.x. And I think so.
was (Author: lewuathe):
[~zhz] Thanks for reviewing! It depends on DataNode metrics so I can rebase and resolve conflict if necessary, I think.
> NameNode WebUI should display DataNode usage histogram
> ------------------------------------------------------
>
> Key: HDFS-10534
> URL: https://issues.apache.org/jira/browse/HDFS-10534
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode, ui
> Reporter: Zhe Zhang
> Assignee: Kai Sasaki
> Fix For: 2.9.0, 3.0.0-alpha3, 2.8.1
>
> Attachments: HDFS-10534.01.patch, HDFS-10534.02.patch, HDFS-10534.03.patch, HDFS-10534.04.patch, HDFS-10534.05.patch, HDFS-10534.06.patch, HDFS-10534.07.patch, HDFS-10534.08.patch, HDFS-10534.09.patch, HDFS-10534.10.patch, HDFS-10534.11.patch, Screen Shot 2016-06-23 at 6.25.50 AM.png, Screen Shot 2016-07-07 at 23.29.14.png, Screen Shot 2016-11-14 at 4.27.15 PM.png, Screen Shot 2016-11-17 at 0.14.06.png, table_histogram.html
>
>
> In addition of *Min/Median/Max*, another meaningful metric for cluster balance is DN usage in histogram style.
> Since NN already has provided necessary information to calculate histogram of DN usage, it can be done in JS side.
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