Bikas Saha created TEZ-2648:
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Summary: Allow Input/Processor/Output to specify their execution
timeline
Key: TEZ-2648
URL: https://issues.apache.org/jira/browse/TEZ-2648
Project: Apache Tez
Issue Type: Sub-task
Reporter: Bikas Saha
We can define a reporting mechanism or event to enable the IPO's to report how
they spent their time. When an attempt is on the critical path between time T1
and T2 then this attempt timeline will show us what the attempt was doing
between T1 and T2. Ideally, these would point to possible local improvements in
the attempt itself (because other delays would be captured in the critical path
outside T1 and T2). e.g. slow merge operation, slow sort operation.
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