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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-839) The NameNode should forward block reports to BackupNode
Date Fri, 15 Jan 2010 14:37:54 GMT

    [ https://issues.apache.org/jira/browse/HDFS-839?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12800714#action_12800714
] 

dhruba borthakur commented on HDFS-839:
---------------------------------------

> Do you think these information should be sent to Backup Node in

I would rather make the datanode send block reports and block received messages directly to
the master as well as the BackupNode. do you agree?

> The NameNode should forward block reports to BackupNode
> -------------------------------------------------------
>
>                 Key: HDFS-839
>                 URL: https://issues.apache.org/jira/browse/HDFS-839
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: name-node
>            Reporter: dhruba borthakur
>            Assignee: dhruba borthakur
>
> The BackupNode (via HADOOP-4539) receives a stream of transactions from NameNode. However,
the BackupNode does not have block locations of blocks. It would be nice if the NameNode can
forward all block reports (that it receives from DataNodes) to the BackupNode.

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