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From "Li Bo (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7678) Block group reader with decode functionality
Date Mon, 26 Jan 2015 11:03:35 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7678?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Li Bo updated HDFS-7678:
------------------------
    Attachment: BlockGroupReader.patch

> Block group reader with decode functionality
> --------------------------------------------
>
>                 Key: HDFS-7678
>                 URL: https://issues.apache.org/jira/browse/HDFS-7678
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Li Bo
>            Assignee: Li Bo
>         Attachments: BlockGroupReader.patch
>
>
> A block group reader will read data from BlockGroup no matter in striping layout or contiguous
layout. The corrupt blocks can be known before reading(told by namenode), or just be found
during reading. The block group reader needs to do decoding work when some blocks are found
corrupt.



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