Gera Shegalov created MAPREDUCE-5941:
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Summary: JobCounter's should be organized in groups for map and
reduce
Key: MAPREDUCE-5941
URL: https://issues.apache.org/jira/browse/MAPREDUCE-5941
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: mrv2
Reporter: Gera Shegalov
JobCounters are currently organized counterintuitively. We duplicate the same
logical counter. For example, there is NUM_FAILED_MAPS and NUM_FAILED_REDUCES
instead of NUM_FAILED_TASKS in map group and reduce group.
As a consequence the counters are displayed in two lines in the UI instead of
filling the map and reduce column in a single Counter table row.
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