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Date: Sun, 17 Sep 2017 17:48:00 +0000 (UTC)
From: "Ming Ma (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.13013610.1476901633000.132261.1505670480286@Atlassian.JIRA>
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References: <JIRA.13013610.1476901633000@Atlassian.JIRA> <JIRA.13013610.1476901633525@jira-lw-us.apache.org>
Subject: [jira] [Comment Edited] (HDFS-11035) Better documentation for
 maintenace mode and upgrade domain
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archived-at: Sun, 17 Sep 2017 17:48:06 -0000


    [ https://issues.apache.org/jira/browse/HDFS-11035?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16169365#comment-16169365 ] 

Ming Ma edited comment on HDFS-11035 at 9/17/17 5:47 PM:
---------------------------------------------------------

Here is the draft patch including one doc for upgrade domain and another one for datanode administration in general (decommission and maintenance). cc [~jojochuang] [~manojg] [~eddyxu] [~ctrezzo]  


was (Author: mingma):
Here is the draft patch including one doc for upgrade domain and another one for datanode administration in general (decommission and maintenance). cc [~jojochuang] [~manojg] [~eddyxu] 

> Better documentation for maintenace mode and upgrade domain
> -----------------------------------------------------------
>
>                 Key: HDFS-11035
>                 URL: https://issues.apache.org/jira/browse/HDFS-11035
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, documentation
>    Affects Versions: 2.9.0
>            Reporter: Wei-Chiu Chuang
>            Assignee: Ming Ma
>         Attachments: HDFS-11035.patch
>
>
> HDFS-7541 added upgrade domain and HDFS-7877 added maintenance mode. Existing documentation about these two features are scarce and the implementation have evolved from the original design doc. Looking at code and Javadoc and I still don't quite get how I can get datanodes into maintenance mode/ set up a upgrade domain.
> File this jira to propose that we write an up-to-date description of these two features.


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