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From "Arpit Agarwal (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8784) BlockInfo#numNodes should be numStorages
Date Tue, 25 Aug 2015 20:39:45 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8784?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14711936#comment-14711936
] 

Arpit Agarwal commented on HDFS-8784:
-------------------------------------

The NameNode does not support more than one replica of a given block per DataNode, so node/storage
are interchangeable and node is probably better.

> BlockInfo#numNodes should be numStorages
> ----------------------------------------
>
>                 Key: HDFS-8784
>                 URL: https://issues.apache.org/jira/browse/HDFS-8784
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>    Affects Versions: 2.7.1
>            Reporter: Zhe Zhang
>            Assignee: Jagadesh Kiran N
>         Attachments: HDFS-8784-00.patch, HDFS-8784-01.patch
>
>
> The method actually returns the number of storages holding a block.



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