Esteban Gutierrez created HBASE-17130:
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Summary: Add support to specify an arbitrary number of reducers
when writing HFiles for bulk load
Key: HBASE-17130
URL: https://issues.apache.org/jira/browse/HBASE-17130
Project: HBase
Issue Type: Improvement
Components: mapreduce
Reporter: Esteban Gutierrez
>From the discussion from HBASE-16894 there is a set of use cases where writing
>to multiple regions in a single reducer can be helpful to reduce the overhead
>of MR jobs when a large number of regions exist in an HBase cluster and some
>regions can present a data skew, e.g. 100s or 1000s of regions with a very
>small number of rows vs. regions with 10s or millions or rows as part of the
>same job. And merging regions is not an option for the use case.
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