[jira] Commented: (HBASE-559) MR example job to count table rows

["Jim Kellerman (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12585193#action_12585193 ] 

Jim Kellerman commented on HBASE-559:
-------------------------------------

+1 great idea!

> MR example job to count table rows
> ----------------------------------
>
>                 Key: HBASE-559
>                 URL: https://issues.apache.org/jira/browse/HBASE-559
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>
> The Lars' import is a little messy; he's not sure how many records were imported.  Running a select takes a couple of hours.  He happens to have an idle MR cluster standing by.  An example MR job that just did a count of records would be generally useful.  Could even output row keys so you'd have a list of what made it in.   Later, if this tool becomes popular with derivatives and similiars, we can bundle a jar of MR jobs to run against your tables that can answer common queries and that are amenable to subclassing/modification.

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