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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-1129) Allow HDFS DataNodes and NameNode to have different build versions
Date Wed, 17 Nov 2010 00:53:18 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12932738#action_12932738
] 

dhruba borthakur commented on HDFS-1129:
----------------------------------------

This is not a 1.0 issue, it is basically to allow a administrator to allow updating datanode
jars without updating namenode jars.

> Allow HDFS DataNodes and NameNode to have different build versions
> ------------------------------------------------------------------
>
>                 Key: HDFS-1129
>                 URL: https://issues.apache.org/jira/browse/HDFS-1129
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: dhruba borthakur
>            Assignee: Dmytro Molkov
>
> There are times when we want to deploy fixes to the NameNode without restarting the DataNodes.
This reduces the restart time of the entire cluster.

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