remove-dead-worker-cancellation-code - Branch - PrefectHQ/prefect

Fix KeyError crash caused by dead cancellation tracking code in worker

#19866Merged

Comparing

remove-dead-worker-cancellation-code

(

86a1799

) with

main

(

56693d4

)

Untouched: 2

Ignored: 6

Benchmarks

Passed

bench_import_prefect_flow

benches/bench_import.py

1.4 s1.4 s

bench_task_decorator

benches/bench_tasks.py

462.8 µs463.9 µs

Ignored

bench_flow_call[options1]

benches/bench_flows.py

Ignored

107.6 ms107.4 ms

bench_task_call

benches/bench_tasks.py

Ignored

+3%

32.7 ms31.8 ms

bench_task_submit

benches/bench_tasks.py

Ignored

+18%

11.8 ms10 ms

bench_flow_decorator

benches/bench_flows.py

Ignored

-12%

5.1 ms5.7 ms

bench_flow_call[options0]

benches/bench_flows.py

Ignored

-2%

162.9 ms166 ms

bench_import_prefect

benches/bench_import.py

Ignored

1.1 s1.1 s

Commits

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Base

main

56693d4

-0.1%

Fix KeyError crash caused by dead cancellation tracking code in worker Remove unused `_cancelling_flow_run_ids` set and related code that would cause a KeyError when the scheduled removal task ran, since the flow run ID was never actually added to the set. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

86a1799

2 days ago

by jakekaplan

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