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From "Jakob Homan (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-461) Analyzing file size distribution.
Date Tue, 07 Jul 2009 18:56:14 GMT

    [ https://issues.apache.org/jira/browse/HDFS-461?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12728293#action_12728293
] 

Jakob Homan commented on HDFS-461:
----------------------------------

Looks good.  +1 with two minor quibbles: 
* On line 25 of your patch, the console help should be wrapped to fit with the rest of the
text, currently it runs very long:
{noformat}
  * XML: This processor creates an XML document with all elements of
    the fsimage enumerated, suitable for further analysis by XML
    tools.
  * FileDistribution: This processor analyzes the file size
    distribution in the image.
    -maxSize specifies the range [0, maxSize] of file sizes to be analyzed (128GB by default).
    -step defines the granularity of the distribution. (2MB by default)
{noformat}
* In the forrest docs, the new processor is referred to as a visitor, which is an implementation
detail that shouldn't leak out into userland.


> Analyzing file size distribution.
> ---------------------------------
>
>                 Key: HDFS-461
>                 URL: https://issues.apache.org/jira/browse/HDFS-461
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: test, tools
>    Affects Versions: 0.21.0
>            Reporter: Konstantin Shvachko
>            Assignee: Konstantin Shvachko
>             Fix For: 0.21.0
>
>         Attachments: OIV-FileDistr.patch, OIV-FileDistr.patch
>
>
> This is a tool for analyzing file size distribution in HDFS using a modified Offline
Image Viewer tool.

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