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https://issues.apache.org/jira/browse/HBASE-559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12585402#action_12585402
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stack commented on HBASE-559:
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To run you'd do something like the following (Presuming hbase including these
new classes is in the hadoop CLASSPATH).
{code}
./bin/hadoop org.apache.hadoop.hbase.mapred.Driver rowcounter <outputdir>
<tablename> <column1> [<column2>....]
{code}
The attached patch has not been properly tested.
> 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
> Attachments: 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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