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From "Jim Kellerman (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-559) MR example job to count table rows
Date Tue, 15 Apr 2008 21:14:21 GMT

    [ https://issues.apache.org/jira/browse/HBASE-559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12589240#action_12589240

Jim Kellerman commented on HBASE-559:


> 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
>            Assignee: stack
>            Priority: Blocker
>             Fix For: 0.1.2
>         Attachments: 559-0.1-v2.patch, 559.patch
> 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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