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https://issues.apache.org/jira/browse/HDFS-699?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hairong Kuang updated HDFS-699:
-------------------------------

    Attachment: HDFS-699.patch

This patch let each replica return its length on disk in response to a block 
recovery init request.

> Primary datanode should compare replicas' on disk lengths
> ---------------------------------------------------------
>
>                 Key: HDFS-699
>                 URL: https://issues.apache.org/jira/browse/HDFS-699
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: data-node
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Hairong Kuang
>         Attachments: HDFS-699.patch
>
>
> According to the design, the primary datanode should compare replicas' on 
> disk length but it is current using Block.numBytes.

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