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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6295) Add "decommissioning" state and node state filtering to dfsadmin
Date Wed, 30 Apr 2014 02:16:16 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13985075#comment-13985075
] 

Aaron T. Myers commented on HDFS-6295:
--------------------------------------

Patch looks pretty good to me, though note that I believe the TestHDFSCLI failure is indeed
due to this patch, because it changes the format of some output this test is checking for.

+1 pending that being fixed, and answers to Charlie's review comments.

> Add "decommissioning" state and node state filtering to dfsadmin
> ----------------------------------------------------------------
>
>                 Key: HDFS-6295
>                 URL: https://issues.apache.org/jira/browse/HDFS-6295
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 2.4.0
>            Reporter: Andrew Wang
>            Assignee: Andrew Wang
>         Attachments: hdfs-6295-1.patch
>
>
> One of the few admin-friendly ways of viewing the list of decommissioning nodes is via
"hdfs dfsadmin -report". However, this lists *all* the datanodes on the cluster, which is
prohibitive for large clusters, and also requires manual parsing to look at the decom status.
It'd be nicer if we could fetch and display only decommissioning nodes (or just live and dead
nodes for that matter).



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