joshstagner/oss-6656-retry-on-connect-error - Branch - PrefectHQ/prefect

Add httpx.ConnectError to client retry exceptions

#20276

Comparing

joshstagner/oss-6656-retry-on-connect-error

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9f663c1

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main

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585767f

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Untouched: 2

Ignored: 6

Benchmarks

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bench_import_prefect_flow

benches/bench_import.py

1.4 s1.4 s

bench_task_decorator

benches/bench_tasks.py

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550 µs553.4 µs

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bench_flow_call[options0]

benches/bench_flows.py

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bench_flow_call[options1]

benches/bench_flows.py

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bench_flow_decorator

benches/bench_flows.py

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5.2 ms5 ms

bench_import_prefect

benches/bench_import.py

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1.1 s1.1 s

bench_task_submit

benches/bench_tasks.py

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90.6 ms6.2 ms

bench_task_call

benches/bench_tasks.py

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19.6 ms22.7 ms

Commits

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Base

main

585767f

-0.32%

Add httpx.ConnectError to client retry exceptions When the Prefect server becomes unavailable after initial connection (e.g., during restart), API calls now retry with exponential backoff instead of failing immediately. This prevents flow runs from getting stuck in Pending state when the server goes down, as the worker can now successfully mark them as crashed once the server recovers. Key behavior: - ConnectError is NOT retried on first request (fail fast for wrong URL) - ConnectError IS retried after a successful connection has been made Closes #18324 Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

9f663c1

12 hours ago

by joshuastagner

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