Robert Bradshaw created BEAM-5521:
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Summary: Cache execution trees in SDK worker
Key: BEAM-5521
URL: https://issues.apache.org/jira/browse/BEAM-5521
Project: Beam
Issue Type: Improvement
Components: sdk-py-harness
Reporter: Robert Bradshaw
Assignee: Robert Bradshaw
Currently they are re-constructed from the protos for every bundle, which is
expensive (especially for 1-element bundles in streaming flink).
Care should be taken to ensure the objects can be re-usued.
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