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Treat concurrency_limit=0 as exhausted, not unlimited A limit of 0 means "no slots available" (intentionally disabled). Show it as red/exhausted rather than blue/unlimited. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

alexs/oss-7698-oss-add-concurrency-slot-cli-commands

4 minutes ago

ci: migrate redis to GitHub Actions service container (#21165) Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com> Co-authored-by: Alexander Streed <ajstreed1@gmail.com>

main

6 minutes ago

Add `include_files` support to remaining infrastructure decorators (#21178) Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com> Co-authored-by: alex.s <alex.s@prefect.io> Co-authored-by: alex.s <ajstreed1@gmail.com>

main

10 minutes ago

Preserve rescheduled flow runs during shutdown

jellyfish0316:fix/process-worker-shutdown-crashed-state

9 hours ago

fix: avoid blocking event loop in async heartbeat cleanup thread.join(timeout=2) in send_heartbeats_async's finally block is a blocking call that serializes when many concurrent subflows finish at once. With 20 concurrent subflows, this added ~40s of latency. Since the thread is a daemon thread and the stop event ensures it exits within 1 second, joining is unnecessary. The terminal state check also prevents stale heartbeats after flow completion. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

fix/async-parent-heartbeat-starvation

10 hours ago

fix: use thread for async flow heartbeat to prevent starvation When an async parent flow calls sync subflows, the event loop is blocked by run_flow_sync(). The previous asyncio.Task-based heartbeat could not fire during this time, causing false-positive zombie flow detection. Switch send_heartbeats_async to use a daemon thread (matching the sync implementation) so heartbeats continue regardless of event loop state. Closes #20887 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

fix/async-parent-heartbeat-starvation

12 hours ago

Update AGENTS.md files for d7c576c (#21176)

main

15 hours ago

Fix slots tests to pass when run together in same process The CycloptsCliRunner only supports one CLI invocation per process. Use the client directly for JSON and 404 tests, keeping only the table output test as a CLI invocation. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

alexs/oss-7698-oss-add-concurrency-slot-cli-commands

16 hours ago

Active Branches

Add concurrency slot CLI commands for work pools and work queues#21174

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4 minutes ago

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fix process-worker-shutdown-crashed-state#21158

last run

9 hours ago

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Fix async parent heartbeat starvation from sync subflows#21177

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10 hours ago

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