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From "Tsz Wo Nicholas Sze (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7648) Verify that HDFS blocks are in the correct datanode directories
Date Fri, 18 Mar 2016 18:39:33 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7648?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15201941#comment-15201941
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Tsz Wo Nicholas Sze commented on HDFS-7648:
-------------------------------------------

Agree that it should print out the actual and the expected directories.

Please also create a helper method but not duplicating the code.

> Verify that HDFS blocks are in the correct datanode directories
> ---------------------------------------------------------------
>
>                 Key: HDFS-7648
>                 URL: https://issues.apache.org/jira/browse/HDFS-7648
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Rakesh R
>         Attachments: HDFS-7648-3.patch, HDFS-7648-4.patch, HDFS-7648-5.patch, HDFS-7648.patch,
HDFS-7648.patch
>
>
> HDFS-6482 changed datanode layout to use block ID to determine the directory to store
the block.  We should have some mechanism to verify it.  Either DirectoryScanner or block
report generation could do the check.



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