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Date: Mon, 24 Feb 2014 22:07:19 +0000 (UTC)
From: "Arpit Agarwal (JIRA)" <jira@apache.org>
To: hdfs-dev@hadoop.apache.org
Message-ID: <JIRA.12696901.1393242705418.96096.1393279639791@arcas>
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Subject: [jira] [Resolved] (HDFS-6004) Change DFSAdmin for rolling upgrade
 commands
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     [ https://issues.apache.org/jira/browse/HDFS-6004?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arpit Agarwal resolved HDFS-6004.
---------------------------------

       Resolution: Fixed
    Fix Version/s: HDFS-5535 (Rolling upgrades)
     Hadoop Flags: Reviewed

+1 for the patch. I committed it to the feature branch as r1571463. Thanks Nicholas!

> Change DFSAdmin for rolling upgrade commands
> --------------------------------------------
>
>                 Key: HDFS-6004
>                 URL: https://issues.apache.org/jira/browse/HDFS-6004
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: hdfs-client
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>             Fix For: HDFS-5535 (Rolling upgrades)
>
>         Attachments: h6004_20140224.patch, h6004_20140224b.patch, h6004_20140224c.patch
>
>
> When rolling upgrade is initiated, a image is created for rollback.  We propose the following changes for the DFSAdmin for rolling upgrade commands:
> - change "dfsadmin -rollingUpgrade start" to "dfsadmin -rollingUpgrade prepare";
> - add information for the rollback image to "dfsadmin -rollingUpgrade query".


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