docs: Document jobs-funneled-to-one-worker fix (SDK 1.10.1)#698
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| If your endpoint has multiple workers but nearly all jobs run on one worker while the others sit idle, and jobs stay `IN_QUEUE` even though workers are available, you may be running an affected version of the Runpod Python SDK. | ||
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| Versions 1.9.1 through 1.10.0 could corrupt per-worker job tracking on endpoints that use a network volume, causing most workers to stop pulling new jobs. This most often appeared on network volume endpoints such as ComfyUI workers. |
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Sourced the affected version range (1.9.1–1.10.0), the network-volume root cause, and the 1.10.1 fix from PR #517, which reverted JobsProgress in worker_state.py from a shared pickle file at os.getcwd()/.runpod_jobs.pkl back to an in-memory set. Network volumes made os.getcwd() a shared mount across workers, corrupting per-worker occupancy so workers stopped pulling jobs — the ComfyUI-on-network-volume symptom in the linked issue #432.
Source: runpod/runpod-python#517
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Adds a Serverless troubleshooting entry for the SDK job-funneling regression: on SDK 1.9.1–1.10.0, endpoints with a network volume corrupted per-worker job tracking, funneling nearly all jobs onto one worker while others sat idle and jobs stayed IN_QUEUE. Points users to upgrade to runpod>=1.10.1 (fixed via runpod-python #517, released in 1.10.1). Common for ComfyUI-on-network-volume endpoints.
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