Fabian Hueske created FLINK-2944:
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Summary: Collect, expose and display operator-specific stats
Key: FLINK-2944
URL: https://issues.apache.org/jira/browse/FLINK-2944
Project: Flink
Issue Type: New Feature
Components: Local Runtime, Webfrontend
Reporter: Fabian Hueske
It would be nice to collect operator-specific stats such as:
- HashJoin: bytes spilled build side, bytes spilled probe side, num keys (build
/ probe)
- GroupBy: bytes spilled, num keys, max group size, avg. group size
- Combiner: combine rate (in/out ratio)
- Streaming Ops: avg. throughput
- etc.
and display these stats in the webUI.
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