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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4701) Improve datanode decommission monitoring performance
Date Thu, 20 Nov 2008 23:22:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12649528#action_12649528

Konstantin Shvachko commented on HADOOP-4701:

Raghu> I does not look like redesign in any way to me.

This is a redesign because the behavior is changing. You cannot use decommissioned nodes as
read only.
But what scares me more, the whole replication flow will be affected, {{NumberReplicas}} are
used everywhere.

> Improve datanode decommission monitoring performance
> ----------------------------------------------------
>                 Key: HADOOP-4701
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4701
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: dfs
>            Reporter: Tsz Wo (Nicholas), SZE
> The datanode decommission monitoring is not efficient.  There are rooms for improvement.

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