d1e75ddded
Move issues (01–29) and PRD from .scratch/distributed-inference-network/ into docs/issues/ and docs/. Update ralph_progress.py DEFAULT_PRD path and rewrite docs/agents/issue-tracker.md to reflect the new layout. The distributed_inference_network.egg-info/docs/ mirror is a build artifact already covered by *.egg-info/ in .gitignore — not committed. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
27 lines
1.1 KiB
Markdown
27 lines
1.1 KiB
Markdown
# US-023 — Heartbeat stats payload: request counters + dynamic reassignment response
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Status: done
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Priority: Medium
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Stage: Implemented
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## Context
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Node heartbeats are currently empty POSTs. The tracker has no visibility into per-node load,
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making load balancing and assignment decisions blind. Heartbeats should carry cumulative stats.
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The heartbeat response channel is also the natural place for the tracker to deliver reassignment
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instructions without requiring a node restart.
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## Acceptance criteria
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- [ ] Heartbeat POST body includes: `total_requests`, `failed_requests`, `queue_depth`, `uptime_seconds`, `status`
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- [ ] `TorchNodeServer` tracks the three counters with a `threading.Lock`
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- [ ] Tracker stores the last heartbeat payload per node
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- [ ] Heartbeat response may include `new_assignment: {model, shard_start, shard_end}`; node logs it
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- [ ] Stats survive tracker outage: buffered locally, flushed on next successful heartbeat
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- [ ] `python -m pytest` passes
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## Notes
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Hot-reload (loading a new shard without restart) is deferred to a future story. The response
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field is wired so trackers can send the signal; nodes log it but don't act yet.
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