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https://issues.apache.org/jira/browse/HBASE-15773?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15274605#comment-15274605
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Gary Helmling commented on HBASE-15773:
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[~jmspaggi] I didn't realize there was an existing issue. Thanks for the
pointer, I closed it as a dupe.
> CellCounter improvements
> ------------------------
>
> Key: HBASE-15773
> URL: https://issues.apache.org/jira/browse/HBASE-15773
> Project: HBase
> Issue Type: Improvement
> Components: mapreduce
> Affects Versions: 1.2.0, 1.3.0
> Reporter: Gary Helmling
> Assignee: Gary Helmling
> Fix For: 1.3.0
>
> Attachments: HBASE-15773.001.patch, HBASE-15773.002.patch
>
>
> Looking at the CellCounter map reduce, it seems like it can be improved in a
> few areas:
> * it does not currently support setting scan batching. This is important
> when we're fetching all versions for columns. Actually, it would be nice to
> support all of the scan configuration currently provided in TableInputFormat.
> * generating job counters containing row keys and column qualifiers is
> guaranteed to blow up on anything but the smallest table. This is not usable
> and doesn't make any sense when the same counts are in the job output. The
> row and qualifier specific counters should be dropped.
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