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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2166) Datanodes should send block reports to both Active and Standby Namenodes.
Date Tue, 19 Jul 2011 13:19:58 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13067705#comment-13067705
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Konstantin Shvachko commented on HDFS-2166:
-------------------------------------------

Did you see the HA design that addresses this issue, say in HDFS-2064?

> Datanodes should send block reports to both Active and Standby Namenodes.
> -------------------------------------------------------------------------
>
>                 Key: HDFS-2166
>                 URL: https://issues.apache.org/jira/browse/HDFS-2166
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: data-node, hdfs client, name-node
>            Reporter: Justin Joseph
>
> Datanode should send the Block Reports and Block Received commands to both Active and
Standby Namenodes. It substantially reduces the time for Standby to take over as Active and
enhances the service availability.

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