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From "Kai Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8121) BlockManager treates normal blocks in a block group as corrput
Date Fri, 10 Apr 2015 08:17:13 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14489149#comment-14489149
] 

Kai Zheng commented on HDFS-8121:
---------------------------------

Hi [~libo-intel],

Looks like you're quite clear about this, would you please fix it? Thanks.

> BlockManager treates normal blocks in a block group as corrput
> --------------------------------------------------------------
>
>                 Key: HDFS-8121
>                 URL: https://issues.apache.org/jira/browse/HDFS-8121
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Li Bo
>            Assignee: Li Bo
>
> If a block in a block group is reported by Datanode to Namenode, Namenode will check
if it's corrupt. Currently {{BlockManager}} uses the size of block group to compare with the
size of reported block, which makes the block is treated as corrupt  block by Namenode. I
think Namenode should first calculate the size of the block and then compare it with reported
value



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