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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-576) Extend Block report to include under-construction replicas
Date Sat, 05 Sep 2009 00:40:57 GMT

    [ https://issues.apache.org/jira/browse/HDFS-576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12751673#action_12751673
] 

Hairong Kuang commented on HDFS-576:
------------------------------------

> The original replica of RUR may in finalized state. In this case, should we add the original
replica into finalized version.
I meant adding this to the finalized list.

> Extend Block report to include under-construction replicas
> ----------------------------------------------------------
>
>                 Key: HDFS-576
>                 URL: https://issues.apache.org/jira/browse/HDFS-576
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: data-node, name-node
>    Affects Versions: Append Branch
>            Reporter: Konstantin Shvachko
>            Assignee: Konstantin Shvachko
>             Fix For: Append Branch
>
>         Attachments: BlockReport.htm, NewBlockReport.patch
>
>
> Current data-node block reports report only finalized (in append terminology) blocks.
Data-nodes should report all block replicas except for the temporary ones so that clients
could read from incomplete replicas and to make block recovery possible.
> The attached design document goes into more details of the new block reports.

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