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Tsuyoshi Ozawa commented on TEZ-145: ------------------------------------ Bikas, thank you for the comment. Make sense. As a first prototyping, I'll try to create CombinerProcessor. > Support a combiner processor that can run non-local to map/reduce nodes > ----------------------------------------------------------------------- > > Key: TEZ-145 > URL: https://issues.apache.org/jira/browse/TEZ-145 > Project: Apache Tez > Issue Type: Bug > Reporter: Hitesh Shah > Assignee: Tsuyoshi Ozawa > Labels: gsoc, gsoc2015, hadoop, java, tez > > For aggregate operators that can benefit by running in multi-level trees, > support of being able to run a combiner in a non-local mode would allow > performance efficiencies to be gained by running a combiner at a rack-level. -- This message was sent by Atlassian JIRA (v6.3.4#6332)