David Moravek created FLINK-13550:
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Summary: Support for CPU FlameGraphs in new web UI
Key: FLINK-13550
URL: https://issues.apache.org/jira/browse/FLINK-13550
Project: Flink
Issue Type: New Feature
Components: Runtime / Web Frontend
Reporter: David Moravek
For a better insight into a running job, it would be useful to have ability to
render a CPU flame graph for a particular job vertex.
Flink already has a stack-trace sampling mechanism in-place, so it should be
straightforward to implement.
This should be done by implementing a new endpoint in REST API, which would
sample the stack-trace the same way as current BackPressureTracker does, only
with a different sampling rate and length of sampling.
[Here|https://www.youtube.com/watch?v=GUNDehj9z9o] is a little demo of the
feature.
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