Gowtam Lal created HBASE-14833:
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Summary: HFileOutputFormat2 should allow for custom reducer logic
Key: HBASE-14833
URL: https://issues.apache.org/jira/browse/HBASE-14833
Project: HBase
Issue Type: Improvement
Components: API, mapreduce
Reporter: Gowtam Lal
Priority: Minor
Right now, HFileOutputFormat2.configureIncrementalLoad() will configure a
ReducerClass which takes all input and passes it through to be written to an
HFile. Unfortunately, this prevents a user from plugging in his or her own
logic for the Reduce phase.
TableMapReduceUtil.initTableReducerJob() accepts a custom ReducerClass,
allowing users to operate on the tuples coming out of the MapperClass before
they're written to output. Could HFileOutputFormat2.configureIncrementalLoad()
possibly do something similar?
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