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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-5144) manual way of turning on restore of failed storage replicas for namenode
Date Fri, 27 Feb 2009 22:51:12 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-5144?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsz Wo (Nicholas), SZE updated HADOOP-5144:
-------------------------------------------

       Resolution: Fixed
    Fix Version/s: 0.21.0
           Status: Resolved  (was: Patch Available)

I committed this.  Thanks, Boris!

Please add release note since this added a new DFSAdmin command.

> manual way of turning on restore of failed storage replicas for namenode
> ------------------------------------------------------------------------
>
>                 Key: HADOOP-5144
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5144
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: dfs
>            Reporter: Boris Shkolnik
>            Assignee: Boris Shkolnik
>             Fix For: 0.21.0
>
>         Attachments: Hadoop-5144-1.patch, Hadoop-5144-2.patch, Hadoop-5144.patch
>
>
> when HADOOP-4885 is implemented and committed we will automatic facility to restore failed
storage replicas for namenode. Currently it is controlled by configuration file.
> But since it is quite a "sensitive" feature we might want to have a manual way of turning
it on. (i.e. starting with the feature turned off, and turn it on when needed).
> we can use hadoop dfsadmin script to do this.

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