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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2012/11/30 17:43:58 UTC

[jira] [Resolved] (HBASE-5069) [book] Document how to count rows

     [ https://issues.apache.org/jira/browse/HBASE-5069?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stack resolved HBASE-5069.
--------------------------

       Resolution: Fixed
    Fix Version/s: 0.96.0
     Hadoop Flags: Reviewed

Committed to trunk.  Thank you for the doc Daisuke.
                
> [book] Document how to count rows
> ---------------------------------
>
>                 Key: HBASE-5069
>                 URL: https://issues.apache.org/jira/browse/HBASE-5069
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Jean-Daniel Cryans
>            Priority: Minor
>             Fix For: 0.96.0
>
>         Attachments: HBASE-5069.patch
>
>
> I just saw that there's no documentation on how to count rows. Basically there's:
>  - The "count" command in the shell, it's quite fast when configured with the right CACHE.
>  - The "rowcounter" MR job, it's super fast but you need to have a MapReduce setup in place in order to use it.
> There's also a way to estimate the row count by using the HFile tool and doing a bit of bash magic.

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