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From "Harsh J (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-336) dfsadmin -report should report number of blocks from datanode
Date Sat, 19 Nov 2011 20:16:52 GMT

    [ https://issues.apache.org/jira/browse/HDFS-336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13153573#comment-13153573

Harsh J commented on HDFS-336:

For anyone who'd like to attempt this:

This can be done by promoting the numBlocks method and field, from the DatanodeDescriptor
class to its superclass DatanodeInfo (which is what is exposed out, for report and such).

Then on, its as easy as printing it as part of the report, from within DatanodeInfo.
> dfsadmin -report should report number of blocks from datanode
> -------------------------------------------------------------
>                 Key: HDFS-336
>                 URL: https://issues.apache.org/jira/browse/HDFS-336
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Lohit Vijayarenu
>            Priority: Minor
>              Labels: newbie
> _hadoop dfsadmin -report_ seems to miss number of blocks from a datanode. Number of blocks
hosted by a datanode is a good info which should be included in the report. 

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