tracker rebalance events
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@@ -123,6 +123,26 @@ def _start_heartbeat(
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except Exception:
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return False
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def _apply_directives(directives: list[dict]) -> None:
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if not directives:
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return
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if node_ref is None or not hasattr(node_ref, "apply_tracker_directives"):
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print(f" [node] tracker directives received: {directives}", flush=True)
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return
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try:
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applied = node_ref.apply_tracker_directives(directives)
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except Exception as exc:
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print(f" [node] WARNING: failed to apply tracker directives: {exc}", flush=True)
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return
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if applied:
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model_id = applied.get("model", register_payload.get("hf_repo") or register_payload.get("model"))
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register_payload["model"] = str(model_id).split("/")[-1]
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register_payload["hf_repo"] = model_id
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register_payload["shard_start"] = applied["shard_start"]
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register_payload["shard_end"] = applied["shard_end"]
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register_payload["quantization"] = applied.get("quantization", register_payload.get("quantization"))
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register_payload["tracker_mode"] = bool(applied.get("tracker_mode", False))
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def _loop() -> None:
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nonlocal node_id
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hb_url = f"{tracker_url}/v1/nodes/{node_id}/heartbeat"
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@@ -150,6 +170,7 @@ def _start_heartbeat(
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try:
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resp = _post_json(hb_url, _get_stats())
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_apply_directives(resp.get("directives", []))
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new_asgn = resp.get("new_assignment")
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if new_asgn:
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print(
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@@ -282,6 +303,7 @@ def run_startup(
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print(f" {probationary_line}", flush=True)
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if model_id: # treat "" the same as None — no explicit model given
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user_pinned_shard = shard_start is not None or shard_end is not None
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# Auto-detect shard range from model config if not explicitly provided
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if shard_start is None or shard_end is None:
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detected = _detect_num_layers(model_id)
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@@ -355,6 +377,7 @@ def run_startup(
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"quantization": quantization,
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"score": 1.0,
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"tracker_mode": (shard_start == 0),
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"managed_assignment": not user_pinned_shard,
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**relay_fields,
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}
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tracker_node_id: str | None = None
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@@ -442,6 +465,7 @@ def run_startup(
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"quantization": quantization,
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"score": 1.0,
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"tracker_mode": (assigned_shard_start == 0),
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"managed_assignment": True,
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**relay_fields,
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}
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tracker_node_id = None
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