MR-279: ShuffleHandler should use Protocol Buffers for ServiceData
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Key: MAPREDUCE-2659
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2659
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: mrv2
Affects Versions: 0.23.0
Reporter: Robert Joseph Evans
Fix For: 0.23.0
Auxiliary Services (Specifically ShuffleHandler) should use ProtocolBuffers for
storing/retrieving data in the ByteBuffer. Right now there are TODOs to have
the format include a version number, but if we want true wire compatibility we
should use the same system we are using elsewhere in the code for messages, not
something invented as we go along.
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