Liu created FLINK-39153:
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Summary: Add comprehensive performance metrics for PyFlink
Key: FLINK-39153
URL: https://issues.apache.org/jira/browse/FLINK-39153
Project: Flink
Issue Type: Improvement
Components: API / Python
Reporter: Liu
Currently, flink-python only supports basic user-defined metrics via the Beam
framework. There is no built-in visibility into key performance aspects such as
bundle processing time, serialization/deserialization overhead, gRPC
communication latency, UDF execution time, state access performance, or Python
process health (CPU, memory, GC).
This JIRA proposes adding comprehensive system-level performance metrics
covering the entire data flow path in flink-python, enabling users to diagnose
performance bottlenecks within minutes instead of hours.
A FLIP will be draft later.
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