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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-3929) Add option to HFile tool to produce basic stats
Date Tue, 14 Jun 2011 22:54:48 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13049498#comment-13049498
] 

stack commented on HBASE-3929:
------------------------------

bq. before commit, I think we should refactor all of the HFile "Tool" stuff out of HFile into
a new class.

How about doing this some other time in another issue and commit what we have here?

If we change the door into the HFile, we'll need to update docs, lars will have to change
his book, the world will end, don't you think?

> Add option to HFile tool to produce basic stats
> -----------------------------------------------
>
>                 Key: HBASE-3929
>                 URL: https://issues.apache.org/jira/browse/HBASE-3929
>             Project: HBase
>          Issue Type: New Feature
>          Components: io
>    Affects Versions: 0.92.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: 0.92.0
>
>         Attachments: hbase-3929-draft.txt
>
>
> In looking at HBASE-3421 I wrote a small tool to scan an HFile and produce some basic
statistics about it:
> - min/mean/max key size, value size (uncompressed)
> - min/mean/max number of columns per row (uncompressed)
> - min/mean/max number of bytes per row (uncompressed)
> - the key of the largest row

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