[jira] [Created] (FLINK-22235) Document stability concerns of flamegraphs for heavier jobs

[Shang Yuanchun (Jira)]

Chesnay Schepler created FLINK-22235:
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             Summary: Document stability concerns of flamegraphs for heavier jobs
                 Key: FLINK-22235
                 URL: https://issues.apache.org/jira/browse/FLINK-22235
             Project: Flink
          Issue Type: Improvement
          Components: Documentation, Runtime / Web Frontend
            Reporter: Chesnay Schepler
             Fix For: 1.13.0


The FlameGraph feature added in FLINK-13550 has some known scalability issues, because it issues 1 RPC call per subtask. This may put a lot of pressure on the RPC system, and as such it should be used with caution for heavier jobs until we improved this a bit.



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