Bikas Saha created TEZ-2265:
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Summary: All inputs/outputs in a task share the same counter object
Key: TEZ-2265
URL: https://issues.apache.org/jira/browse/TEZ-2265
Project: Apache Tez
Issue Type: Bug
Reporter: Bikas Saha
Assignee: Bikas Saha
This makes one input which reads the value of a counter to see updates that
were made by some other input/output. Any decisions based on those counter
values could be wrong and as of today, the output data size reported in vertex
manager event or by shuffle pipelining is potentially wrong.
Simple fix would be to have each IO have their own counters and merge them
before reporting back up in the heartbeat.
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