fix: prevent repeated model GPU submissions

README.md

@@ -38,6 +38,7 @@ Optional tuning:
 - `MODELHUB_AGENT_RESERVATION_TTL_SECONDS` default `120`
 - `MODELHUB_AGENT_INSTANCE_ID` optional stable worker identity used to spread concurrent agents across accounts and candidates
 - `MODELHUB_AGENT_CLAIMS_PATH` default `.modelhub_state/submission_claims.jsonl`
+- `MODELHUB_SUBMISSION_EXCLUSIONS_PATH` default `.modelhub_state/submission_exclusions.jsonl`
 - `MODELHUB_AGENT_DAILY_TARGET`
 - `MODELHUB_AGENT_MIN_DOWNLOADS`
 - `MODELHUB_AGENT_GPUS`
@@ -77,6 +78,12 @@ locally failed model/GPU pair cools down for 24 hours instead of being excluded
 forever. The `[scan]` lines show every expansion stage, while `[daily] wave_done`
 includes `skip_reasons` so an empty candidate pool is directly diagnosable.
 
+Community deduplication is scoped to the exact model/GPU combination. A model
+adapted on one GPU remains eligible for another GPU. Before each submission the
+worker performs an uncached community check; a lookup failure defers the task
+instead of failing open. Platform uniqueness rejections are persisted per
+model/GPU in `.modelhub_state/submission_exclusions.jsonl` and are not retried.
+
 ## Concurrent Agents
 
 The token pool keeps a local reservation for every in-flight submission, so a
@@ -95,7 +102,8 @@ is retained and the runner immediately draws replacement candidates from the
 same scan instead of retrying the duplicate every cycle. Startup logs and the
 health response expose `agent_version`; version `2026.08.02.3` or newer includes
 duplicate replacement behavior, while version `2026.08.02.4` adds adaptive
-candidate-window expansion and skip-reason reporting.
+candidate-window expansion and skip-reason reporting. Version `2026.08.02.5`
+adds fail-closed model/GPU prechecks and persistent uniqueness exclusions.
 
 ## Deploy
 

modelhub_submmit_api/README.md

@@ -83,6 +83,10 @@ bash run_poll.sh --dry-run
   7 days, 30 days, and older history (up to 3,000 models) when the recent pool is exhausted.
 - Model verification responses are cached across poll cycles for 15 minutes. Local model/GPU
   failures cool down after 24 hours instead of remaining permanently blocked.
+- Community deduplication is model/GPU-specific: another GPU's adaptation does not block the
+  current GPU. Every actual submission performs a fresh uncached check for its exact GPU.
+- If the community lookup is unavailable, submission is deferred. A platform model-uniqueness
+  rejection permanently excludes only that model/GPU combination from future local retries.
 - Each model can be submitted at most once per GPU.
 - Multiple ModelHub tokens are pooled and used to route submissions to the account with available async capacity.
 - Concurrent submissions reserve account slots locally, and an account-capacity race automatically falls through to another account.
@@ -148,6 +152,7 @@ Persistent local scheduler state is written under `.modelhub_state/`:
 
 - `gpu_strategy.json`: GPU ranks, generation progress, and 50/30/20 accepted counters
 - `account_capacity.json`: learned per-account active-task limits
+- `submission_exclusions.jsonl`: non-retryable model/GPU uniqueness rejections
 
 ## Verification
 

modelhub_submmit_api/daily_runner.py

@@ -95,6 +95,11 @@ def build_parser() -> argparse.ArgumentParser:
         default=os.getenv("MODELHUB_AGENT_CLAIMS_PATH", str(DEFAULT_CLAIMS_PATH)),
         help=argparse.SUPPRESS,
     )
+    parser.add_argument(
+        "--submission-exclusions-path",
+        default=os.getenv("MODELHUB_SUBMISSION_EXCLUSIONS_PATH", ".modelhub_state/submission_exclusions.jsonl"),
+        help=argparse.SUPPRESS,
+    )
     parser.add_argument("--history-archive-path", default="history/platform_tasks.jsonl", help=argparse.SUPPRESS)
     parser.add_argument("--history-archive-limit", type=int, default=5000, help=argparse.SUPPRESS)
     parser.add_argument(
@@ -157,6 +162,11 @@ def make_wave_namespace(base_args: argparse.Namespace, wave: WaveSpec) -> argpar
         ledger_path=base_args.ledger_path,
         outcomes_path=getattr(base_args, "outcomes_path", "outcomes/submissions.jsonl"),
         claims_path=getattr(base_args, "claims_path", str(DEFAULT_CLAIMS_PATH)),
+        submission_exclusions_path=getattr(
+            base_args,
+            "submission_exclusions_path",
+            ".modelhub_state/submission_exclusions.jsonl",
+        ),
         history_archive_path=base_args.history_archive_path,
         history_archive_limit=base_args.history_archive_limit,
         hf_base_url=base_args.hf_base_url,
@@ -245,7 +255,9 @@ def run_daily_batches(
                 f"[daily] wave_done name={wave.name} "
                 f"candidates={summary['candidateCount']} planned={summary['plannedSubmitCount']} "
                 f"submitted={summary['submittedCount']} skipped={summary['skippedCount']} "
-                f"duplicates={summary.get('duplicateCount', 0)} failed={summary['failedCount']} "
+                f"duplicates={summary.get('duplicateCount', 0)} "
+                f"uniqueness_rejected={summary.get('modelGpuUniquenessRejectedCount', 0)} "
+                f"failed={summary['failedCount']} "
                 f"skip_reasons={skip_reason_text} "
                 f"remaining_before_run={summary['remainingDailyQuotaBeforeRun']}"
             )

modelhub_submmit_api/main.py

@@ -18,10 +18,18 @@ from history_stats import (
     load_ledger,
     update_history_archive,
 )
-from modelhub_client import DEFAULT_CAPACITY_STATE_PATH, ModelHubAPIError, ModelHubClient, ModelHubClientPool, is_duplicate_submission_error
+from modelhub_client import (
+    DEFAULT_CAPACITY_STATE_PATH,
+    ModelHubAPIError,
+    ModelHubClient,
+    ModelHubClientPool,
+    is_duplicate_submission_error,
+    is_model_uniqueness_error,
+)
 from models import CandidateModel, HFModelSummary, ModelInspection
 from outcome_tracker import DEFAULT_OUTCOMES_PATH, OutcomeTracker
 from submission_claims import DEFAULT_CLAIMS_PATH, SubmissionClaimStore, candidate_key, diversify_candidates
+from submission_exclusions import DEFAULT_SUBMISSION_EXCLUSIONS_PATH, SubmissionExclusionStore
 from task_registry import TASK_SPEC_BY_TYPE, all_task_types, choose_framework_for_task, choose_text_generation_framework, pipeline_tags_for_task_types, task_specs_for_model
 from template_selector import TemplateSelector
 
@@ -94,6 +102,11 @@ def build_parser() -> argparse.ArgumentParser:
     )
     parser.add_argument("--history-archive-path", default="history/platform_tasks.jsonl", help=argparse.SUPPRESS)
     parser.add_argument("--history-archive-limit", type=int, default=5000, help=argparse.SUPPRESS)
+    parser.add_argument(
+        "--submission-exclusions-path",
+        default=os.getenv("MODELHUB_SUBMISSION_EXCLUSIONS_PATH", str(DEFAULT_SUBMISSION_EXCLUSIONS_PATH)),
+        help=argparse.SUPPRESS,
+    )
     parser.add_argument(
         "--gpu-strategy-state-path",
         default=os.getenv("MODELHUB_GPU_STRATEGY_STATE_PATH", str(DEFAULT_GPU_STRATEGY_PATH)),
@@ -270,12 +283,24 @@ def process_model_for_candidates(
     target_gpus: list[str],
     allowed_task_types: list[str],
     outcome_tracker: OutcomeTracker | None = None,
+    submission_exclusion_store: SubmissionExclusionStore | None = None,
 ) -> tuple[list[dict[str, Any]], list[dict[str, Any]], list[dict[str, Any]]]:
     specs = [spec for spec in task_specs_for_model(model) if spec.task_type in allowed_task_types]
     if not specs:
         return [], [{"repoId": model.repo_id, "reason": f"unsupported_pipeline_tag:{model.pipeline_tag or 'unknown'}"}], []
 
-    processed_gpus = modelhub_client.processed_gpus_for_model(model.repo_id)
+    try:
+        if hasattr(modelhub_client, "model_submission_precheck"):
+            precheck = modelhub_client.model_submission_precheck(model.repo_id)
+            processed_gpus = set(precheck.get("processedGpus") or set())
+        else:
+            processed_gpus = modelhub_client.processed_gpus_for_model(model.repo_id)
+    except Exception as exc:
+        return (
+            [],
+            [{"repoId": model.repo_id, "reason": "community_precheck_unavailable_fail_closed"}],
+            [{"repoId": model.repo_id, "reason": f"community_precheck_error:{exc}"}],
+        )
     candidates: list[dict[str, Any]] = []
     skipped: list[dict[str, Any]] = []
     failed: list[dict[str, Any]] = []
@@ -283,6 +308,11 @@ def process_model_for_candidates(
     pending_task_types_by_gpu: list[tuple[str, list[str]]] = []
 
     for target_gpu in target_gpus:
+        if submission_exclusion_store is not None and submission_exclusion_store.is_blocked(model.repo_id, target_gpu):
+            skipped.append(
+                {"repoId": model.repo_id, "targetGpu": target_gpu, "reason": "model_gpu_uniqueness_blocklist"}
+            )
+            continue
         if target_gpu in processed_gpus:
             skipped.append({"repoId": model.repo_id, "targetGpu": target_gpu, "reason": "already_processed_for_gpu"})
             continue
@@ -391,6 +421,7 @@ def collect_candidates_from_models(
     target_gpus: list[str],
     selected_task_types: list[str],
     outcome_tracker: OutcomeTracker | None,
+    submission_exclusion_store: SubmissionExclusionStore | None,
     read_concurrency: int,
 ) -> tuple[list[dict[str, Any]], list[dict[str, Any]], list[dict[str, Any]], int]:
     candidates: list[dict[str, Any]] = []
@@ -419,6 +450,7 @@ def collect_candidates_from_models(
                     target_gpus=target_gpus,
                     allowed_task_types=selected_task_types,
                     outcome_tracker=outcome_tracker,
+                    submission_exclusion_store=submission_exclusion_store,
                 ): index
                 for index, model in enumerate(chunk)
             }
@@ -445,6 +477,27 @@ def submit_candidate(
     candidate: dict[str, Any],
     modelhub_client: ModelHubClient,
 ) -> dict[str, Any]:
+    if hasattr(modelhub_client, "model_submission_precheck"):
+        try:
+            precheck = modelhub_client.model_submission_precheck(candidate["repoId"], force_refresh=True)
+        except Exception as exc:
+            print(
+                f"[submit] deferred repo={candidate['repoId']} gpu={candidate['targetGpu']} "
+                f"framework={candidate['framework']} reason=community_precheck_unavailable",
+                flush=True,
+            )
+            return {
+                "outcome": "precheck_deferred",
+                "candidate": candidate,
+                "reason": f"community_precheck_error:{exc}",
+            }
+        if candidate["targetGpu"] in set(precheck.get("processedGpus") or set()):
+            return {
+                "outcome": "duplicate",
+                "candidate": candidate,
+                "reason": "already_processed_for_gpu",
+            }
+
     payload = {
         "modelAddress": candidate["modelAddress"],
         "taskType": candidate["taskType"],
@@ -469,6 +522,17 @@ def submit_candidate(
             "responseData": response.get("data"),
         }
     except ModelHubAPIError as exc:
+        if is_model_uniqueness_error(exc):
+            print(
+                f"[submit] skipped repo={candidate['repoId']} gpu={candidate['targetGpu']} "
+                f"framework={candidate['framework']} reason=model_uniqueness_rejected",
+                flush=True,
+            )
+            return {
+                "outcome": "uniqueness_rejected",
+                "candidate": candidate,
+                "reason": str(exc),
+            }
         if is_duplicate_submission_error(exc):
             print(
                 f"[submit] skipped repo={candidate['repoId']} gpu={candidate['targetGpu']} "
@@ -505,6 +569,18 @@ def make_run_dir(runs_dir: Path, now) -> Path:
     raise RuntimeError(f"Unable to allocate a unique run directory under {runs_dir}")
 
 
+def one_candidate_per_model(candidates: list[dict[str, Any]]) -> list[dict[str, Any]]:
+    selected: list[dict[str, Any]] = []
+    seen_models: set[str] = set()
+    for candidate in candidates:
+        model_id = str(candidate.get("repoId") or candidate.get("modelAddress") or "")
+        if not model_id or model_id in seen_models:
+            continue
+        seen_models.add(model_id)
+        selected.append(candidate)
+    return selected
+
+
 def run_submission(
     args: argparse.Namespace,
     *,
@@ -543,6 +619,9 @@ def run_submission(
     history_archive_path.parent.mkdir(parents=True, exist_ok=True)
 
     outcome_tracker = outcome_tracker or OutcomeTracker(Path(args.outcomes_path))
+    submission_exclusion_store = SubmissionExclusionStore(
+        Path(getattr(args, "submission_exclusions_path", DEFAULT_SUBMISSION_EXCLUSIONS_PATH))
+    )
     strategy_manager: GPUStrategyManager | None = None
     strategy_summary: dict[str, Any] = {"enabled": False}
     strategy_enabled = (
@@ -638,9 +717,12 @@ def run_submission(
             "plannedSubmitCount": 0,
             "submittedCount": 0,
             "duplicateCount": 0,
+            "modelGpuUniquenessRejectedCount": 0,
             "skippedCount": 0,
             "skipReasonCounts": {},
             "failedCount": 0,
+            "failureReasonCounts": {},
+            "submissionExclusionsPath": str(submission_exclusion_store.path),
             "warnings": report.get("warnings", []),
             "runDir": str(run_dir),
             "outcomeSyncCount": synced_count,
@@ -740,6 +822,7 @@ def run_submission(
             target_gpus=target_gpus,
             selected_task_types=selected_task_types,
             outcome_tracker=outcome_tracker,
+            submission_exclusion_store=submission_exclusion_store,
             read_concurrency=max(1, args.read_concurrency),
         )
         candidates.extend(stage_candidates)
@@ -767,6 +850,7 @@ def run_submission(
 
     submitted: list[dict[str, Any]] = []
     duplicate_candidates: list[dict[str, Any]] = []
+    uniqueness_rejected_candidates: list[dict[str, Any]] = []
     target_submit_count = resolve_max_submit_count(
         args=args,
         planned_count=len(candidates),
@@ -806,7 +890,9 @@ def run_submission(
                 candidate
                 for candidate in diversified_candidates
                 if candidate_key(candidate) not in attempted_keys
+                and not submission_exclusion_store.is_blocked(candidate["repoId"], candidate["targetGpu"])
             ]
+            remaining_candidates = one_candidate_per_model(remaining_candidates)
             desired_count = min(
                 target_submit_count - len(submitted),
                 max_submit_attempts - len(attempted_candidates),
@@ -843,12 +929,30 @@ def run_submission(
 
             batch_submitted_candidates: list[dict[str, Any]] = []
             batch_duplicate_candidates: list[dict[str, Any]] = []
+            batch_uniqueness_rejected_candidates: list[dict[str, Any]] = []
             batch_failed_candidates: list[dict[str, Any]] = []
             for index in range(len(batch_candidates)):
                 result = ordered_results.get(index)
                 if result is None:
                     continue
                 candidate = result["candidate"]
+                if result["outcome"] == "uniqueness_rejected":
+                    duplicate_candidates.append(candidate)
+                    uniqueness_rejected_candidates.append(candidate)
+                    batch_uniqueness_rejected_candidates.append(candidate)
+                    submission_exclusion_store.block(
+                        candidate["repoId"],
+                        candidate["targetGpu"],
+                        reason=result.get("reason", "model_uniqueness_rejected"),
+                    )
+                    skipped.append(
+                        {
+                            "repoId": candidate["repoId"],
+                            "targetGpu": candidate["targetGpu"],
+                            "reason": "model_uniqueness_rejected",
+                        }
+                    )
+                    continue
                 if result["outcome"] == "duplicate":
                     duplicate_candidates.append(candidate)
                     batch_duplicate_candidates.append(candidate)
@@ -860,7 +964,7 @@ def run_submission(
                         }
                     )
                     continue
-                if result["outcome"] == "failed":
+                if result["outcome"] in {"failed", "precheck_deferred"}:
                     batch_failed_candidates.append(candidate)
                     failed.append(
                         {
@@ -903,7 +1007,9 @@ def run_submission(
                     submit_time=result["submitTime"],
                 )
 
-            claim_store.mark_submitted([*batch_submitted_candidates, *batch_duplicate_candidates])
+            claim_store.mark_submitted(
+                [*batch_submitted_candidates, *batch_duplicate_candidates, *batch_uniqueness_rejected_candidates]
+            )
             claim_store.release(batch_failed_candidates)
             if strategy_manager is not None:
                 strategy_manager.record_accepted(batch_submitted_candidates)
@@ -950,11 +1056,13 @@ def run_submission(
         ),
         "plannedSubmitCount": len(attempted_candidates),
         "duplicateCount": len(duplicate_candidates),
+        "modelGpuUniquenessRejectedCount": len(uniqueness_rejected_candidates),
         "submittedCount": len(submitted),
         "skippedCount": len(skipped),
         "skipReasonCounts": dict(skip_reason_counts.most_common()),
         "failedCount": len(failed),
         "failureReasonCounts": dict(failure_reason_counts.most_common()),
+        "submissionExclusionsPath": str(submission_exclusion_store.path),
         "submitConcurrencyUsed": submit_workers,
         "warnings": report.get("warnings", []),
         "runDir": str(run_dir),

modelhub_submmit_api/modelhub_client.py

@@ -21,6 +21,23 @@ class ModelHubAPIError(RuntimeError):
         self.payload = payload
 
 
+def parse_model_submission_precheck(payload: Any) -> dict[str, Any]:
+    """Validate the community lookup response instead of failing open."""
+    if not isinstance(payload, dict):
+        raise ModelHubAPIError("Community model precheck returned a non-object response", payload=payload)
+    data = payload.get("data")
+    if not isinstance(data, dict) or "verifyResult" not in data:
+        raise ModelHubAPIError("Community model precheck response is incomplete", payload=payload)
+    verify_result = data.get("verifyResult") or {}
+    if not isinstance(verify_result, dict):
+        raise ModelHubAPIError("Community model precheck verifyResult is invalid", payload=payload)
+
+    return {
+        "isInDB": data.get("isInDB") is True,
+        "processedGpus": set(str(gpu) for gpu in verify_result),
+    }
+
+
 class ModelHubClient:
     def __init__(
         self,
@@ -42,9 +59,13 @@ class ModelHubClient:
             retries=retries,
         )
 
-    def search_by_model_id(self, model_id: str) -> dict[str, Any]:
+    def search_by_model_id(self, model_id: str, *, force_refresh: bool = False) -> dict[str, Any]:
+        del force_refresh
         return self._request("GET", "/api/computility/models/search-by-model-id", query={"modelId": model_id})
 
+    def model_submission_precheck(self, model_id: str, *, force_refresh: bool = False) -> dict[str, Any]:
+        return parse_model_submission_precheck(self.search_by_model_id(model_id, force_refresh=force_refresh))
+
     def is_model_processed_for_gpu(self, model_id: str, target_gpu: str) -> bool:
         gpu_result = self.get_verify_result_map(model_id).get(target_gpu)
         if gpu_result is None:
@@ -56,7 +77,7 @@ class ModelHubClient:
         return ((payload.get("data") or {}).get("verifyResult") or {})
 
     def processed_gpus_for_model(self, model_id: str) -> set[str]:
-        return set(self.get_verify_result_map(model_id).keys())
+        return set(self.model_submission_precheck(model_id)["processedGpus"])
 
     def list_tasks_page(
         self,
@@ -256,6 +277,16 @@ DUPLICATE_SUBMISSION_MARKERS = (
     "already in progress",
 )
 
+MODEL_UNIQUENESS_ERROR_MARKERS = (
+    "模型唯一性检查",
+    "唯一性检查没有通过",
+    "模型已存在",
+    "model uniqueness",
+    "uniqueness check",
+    "duplicate model",
+    "model already exists",
+)
+
 DEFAULT_CAPACITY_STATE_PATH = Path(".modelhub_state/account_capacity.json")
 
 
@@ -275,6 +306,13 @@ def is_duplicate_submission_error(error: ModelHubAPIError) -> bool:
     return any(marker in message for marker in DUPLICATE_SUBMISSION_MARKERS)
 
 
+def is_model_uniqueness_error(error: ModelHubAPIError) -> bool:
+    message = str(error).strip().lower()
+    if isinstance(error.payload, dict):
+        message = f"{message} {error.payload.get('message') or ''}".lower()
+    return any(marker in message for marker in MODEL_UNIQUENESS_ERROR_MARKERS)
+
+
 class ModelHubClientPool:
     def __init__(
         self,
@@ -385,13 +423,6 @@ class ModelHubClientPool:
         except Exception:
             return max(0, max_count - 1)
 
-    def _safe_search_by_model_id(self, client: ModelHubClient, model_id: str) -> dict[str, Any]:
-        try:
-            payload = client.search_by_model_id(model_id)
-            return payload if isinstance(payload, dict) else {}
-        except Exception:
-            return {}
-
     def _safe_list_tasks(self, client: ModelHubClient, kwargs: dict[str, Any]) -> list[dict[str, Any]]:
         try:
             return client.list_tasks(**kwargs)
@@ -546,29 +577,33 @@ class ModelHubClientPool:
                 if now - cached_at >= self._verify_cache_ttl:
                     self._verify_cache.pop(model_id, None)
 
-    def search_by_model_id(self, model_id: str) -> dict[str, Any]:
+    def search_by_model_id(self, model_id: str, *, force_refresh: bool = False) -> dict[str, Any]:
         # Reuse recent model verification results across short poll cycles.
-        with self._state_lock:
+        if not force_refresh:
-            cached = self._read_from_cache(model_id)
+            with self._state_lock:
-        if cached is not None:
+                cached = self._read_from_cache(model_id)
-            return cached
+            if cached is not None:
+                return cached
 
         # Only query ONE client (the reader) instead of fanning out to all clients.
         # verifyResult is model-specific platform data, not account-specific.
-        response = self._safe_search_by_model_id(self._reader, model_id)
+        response = self._reader.search_by_model_id(model_id)
         if not isinstance(response, dict):
-            response = {"code": 0, "data": {"verifyResult": {}}}
+            raise ModelHubAPIError("Community model precheck returned a non-object response", payload=response)
 
         with self._state_lock:
             self._write_to_cache(model_id, response)
         return response
 
+    def model_submission_precheck(self, model_id: str, *, force_refresh: bool = False) -> dict[str, Any]:
+        return parse_model_submission_precheck(self.search_by_model_id(model_id, force_refresh=force_refresh))
+
     def get_verify_result_map(self, model_id: str) -> dict[str, Any]:
         payload = self.search_by_model_id(model_id)
         return ((payload.get("data") or {}).get("verifyResult") or {})
 
     def processed_gpus_for_model(self, model_id: str) -> set[str]:
-        return set(self.get_verify_result_map(model_id).keys())
+        return set(self.model_submission_precheck(model_id)["processedGpus"])
 
     def _reserve_account(self, excluded: set[int]) -> tuple[int, int] | None:
         with self._state_lock:

modelhub_submmit_api/poll_runner.py

@@ -74,6 +74,11 @@ def build_parser() -> argparse.ArgumentParser:
         default=os.getenv("MODELHUB_AGENT_CLAIMS_PATH", str(DEFAULT_CLAIMS_PATH)),
         help=argparse.SUPPRESS,
     )
+    parser.add_argument(
+        "--submission-exclusions-path",
+        default=os.getenv("MODELHUB_SUBMISSION_EXCLUSIONS_PATH", ".modelhub_state/submission_exclusions.jsonl"),
+        help=argparse.SUPPRESS,
+    )
     parser.add_argument("--history-archive-path", default="history/platform_tasks.jsonl", help=argparse.SUPPRESS)
     parser.add_argument("--history-archive-limit", type=int, default=5000, help=argparse.SUPPRESS)
     parser.add_argument(

modelhub_submmit_api/submission_exclusions.py

@@ -0,0 +1,67 @@
+from __future__ import annotations
+
+import threading
+from pathlib import Path
+from typing import Any
+
+from common import read_jsonl, update_jsonl, utc_now
+
+
+DEFAULT_SUBMISSION_EXCLUSIONS_PATH = Path(".modelhub_state/submission_exclusions.jsonl")
+
+
+def exclusion_key(model_id: str, target_gpu: str) -> str:
+    return f"{model_id}|{target_gpu}"
+
+
+class SubmissionExclusionStore:
+    """Persistent model/GPU exclusions for non-retryable platform rejections."""
+
+    def __init__(self, path: Path | str = DEFAULT_SUBMISSION_EXCLUSIONS_PATH) -> None:
+        self.path = Path(path)
+        self._lock = threading.Lock()
+        self._blocked = {
+            exclusion_key(str(record.get("modelId")), str(record.get("targetGpu")))
+            for record in read_jsonl(self.path)
+            if record.get("modelId") and record.get("targetGpu")
+        }
+
+    def is_blocked(self, model_id: str, target_gpu: str) -> bool:
+        with self._lock:
+            return exclusion_key(model_id, target_gpu) in self._blocked
+
+    def block(self, model_id: str, target_gpu: str, *, reason: str) -> None:
+        if not model_id or not target_gpu:
+            return
+        key = exclusion_key(model_id, target_gpu)
+        now = utc_now().isoformat()
+
+        def update(records: list[dict[str, Any]]) -> list[dict[str, Any]]:
+            existing = next(
+                (
+                    record
+                    for record in records
+                    if exclusion_key(str(record.get("modelId")), str(record.get("targetGpu"))) == key
+                ),
+                None,
+            )
+            if existing is None:
+                records.append(
+                    {
+                        "modelId": model_id,
+                        "targetGpu": target_gpu,
+                        "reason": reason,
+                        "firstSeenAt": now,
+                        "lastSeenAt": now,
+                        "occurrences": 1,
+                    }
+                )
+            else:
+                existing["reason"] = reason
+                existing["lastSeenAt"] = now
+                existing["occurrences"] = max(1, int(existing.get("occurrences") or 1)) + 1
+            return records
+
+        update_jsonl(self.path, update)
+        with self._lock:
+            self._blocked.add(key)

modelhub_submmit_api/version.py

@@ -1 +1 @@
-AGENT_VERSION = "2026.08.02.4"
+AGENT_VERSION = "2026.08.02.5"

tests/test_submission_safety.py

@@ -0,0 +1,225 @@
+from __future__ import annotations
+
+import sys
+import tempfile
+import unittest
+from datetime import datetime, timezone
+from pathlib import Path
+
+
+PACKAGE_DIR = Path(__file__).resolve().parents[1] / "modelhub_submmit_api"
+if str(PACKAGE_DIR) in sys.path:
+    sys.path.remove(str(PACKAGE_DIR))
+sys.path.insert(0, str(PACKAGE_DIR))
+
+from main import build_parser, one_candidate_per_model, process_model_for_candidates, run_submission, submit_candidate  # noqa: E402
+from modelhub_client import (  # noqa: E402
+    ModelHubAPIError,
+    ModelHubClientPool,
+    is_model_uniqueness_error,
+    parse_model_submission_precheck,
+)
+from models import HFModelSummary, ModelInspection  # noqa: E402
+from submission_exclusions import SubmissionExclusionStore  # noqa: E402
+from template_selector import TemplateSelector  # noqa: E402
+
+
+class SafeDiscovery:
+    def __init__(self) -> None:
+        self.model = HFModelSummary(
+            repo_id="owner/model",
+            downloads=100,
+            last_modified=datetime(2026, 1, 1, tzinfo=timezone.utc),
+            pipeline_tag="text-generation",
+        )
+
+    def list_recent_models(self, **_kwargs) -> list[HFModelSummary]:  # noqa: ANN003
+        return [self.model]
+
+    @staticmethod
+    def inspect_model(model: HFModelSummary) -> ModelInspection:
+        return ModelInspection(repo_id=model.repo_id, weight_files=["model.safetensors"])
+
+
+class OtherGpuProcessedClient:
+    @staticmethod
+    def model_submission_precheck(_model_id: str, *, force_refresh: bool = False) -> dict:
+        del force_refresh
+        return {"processedGpus": {"Biren_166m"}, "isInDB": True}
+
+
+class FailingLookupClient:
+    @staticmethod
+    def search_by_model_id(_model_id: str) -> dict:
+        raise ModelHubAPIError("temporary lookup outage")
+
+
+class ExactGpuProcessedClient:
+    def __init__(self) -> None:
+        self.add_calls = 0
+
+    @staticmethod
+    def model_submission_precheck(_model_id: str, *, force_refresh: bool = False) -> dict:
+        del force_refresh
+        return {"processedGpus": {"Vastai_va16"}, "isInDB": True}
+
+    def add_task(self, _payload: dict) -> dict:
+        self.add_calls += 1
+        return {"code": 0, "data": {"id": "should-not-submit"}}
+
+
+class UniquenessRejectingClient:
+    @staticmethod
+    def add_task(_payload: dict) -> dict:
+        raise ModelHubAPIError("模型唯一性检查没有通过，无法进行同步")
+
+
+class UniquenessRunClient(UniquenessRejectingClient):
+    def __init__(self) -> None:
+        self.add_calls = 0
+
+    @staticmethod
+    def available_submit_slots() -> int:
+        return 1
+
+    @staticmethod
+    def list_tasks_page(**_kwargs) -> dict:  # noqa: ANN003
+        return {"code": 0, "data": {"records": []}}
+
+    @staticmethod
+    def processed_gpus_for_model(_model_id: str) -> set[str]:
+        return set()
+
+    def add_task(self, _payload: dict) -> dict:
+        self.add_calls += 1
+        return super().add_task(_payload)
+
+
+def candidate(target_gpu: str = "Vastai_va16") -> dict:
+    return {
+        "repoId": "owner/model",
+        "modelAddress": "https://modelscope.cn/models/owner/model",
+        "taskType": "text-generation",
+        "targetGpu": target_gpu,
+        "framework": "vllm",
+        "configParams": "framework: vllm",
+    }
+
+
+class SubmissionSafetyTests(unittest.TestCase):
+    def test_precheck_tracks_processed_gpus_without_blocking_other_gpus(self) -> None:
+        payload = {
+            "code": 0,
+            "data": {
+                "isInDB": True,
+                "verifyResult": {
+                    "Biren_166m": {
+                        "result": "已验证",
+                        "records": [{"verifyResult": 1}],
+                    }
+                },
+            },
+        }
+        precheck = parse_model_submission_precheck(payload)
+        self.assertEqual({"Biren_166m"}, precheck["processedGpus"])
+
+        model = HFModelSummary(
+            repo_id="owner/model",
+            downloads=100,
+            last_modified=datetime(2026, 1, 1, tzinfo=timezone.utc),
+            pipeline_tag="text-generation",
+        )
+        candidates, skipped, failed = process_model_for_candidates(
+            model=model,
+            hf_discovery=SafeDiscovery(),  # type: ignore[arg-type]
+            modelhub_client=OtherGpuProcessedClient(),  # type: ignore[arg-type]
+            template_selector=TemplateSelector(),
+            target_gpus=["Biren_166m", "Vastai_va16"],
+            allowed_task_types=["text-generation"],
+        )
+        self.assertEqual(["Vastai_va16"], [item["targetGpu"] for item in candidates])
+        self.assertEqual("already_processed_for_gpu", skipped[0]["reason"])
+        self.assertEqual([], failed)
+
+    def test_lookup_failure_is_fail_closed(self) -> None:
+        pool = ModelHubClientPool([FailingLookupClient()])  # type: ignore[arg-type]
+        with self.assertRaises(ModelHubAPIError):
+            pool.model_submission_precheck("owner/model")
+
+    def test_submit_precheck_stops_an_exact_processed_gpu(self) -> None:
+        client = ExactGpuProcessedClient()
+        result = submit_candidate(candidate(), client)  # type: ignore[arg-type]
+        self.assertEqual("duplicate", result["outcome"])
+        self.assertEqual(0, client.add_calls)
+
+    def test_uniqueness_rejection_is_non_retryable_for_that_combination(self) -> None:
+        error = ModelHubAPIError("模型唯一性检查没有通过，无法进行同步")
+        self.assertTrue(is_model_uniqueness_error(error))
+        result = submit_candidate(candidate(), UniquenessRejectingClient())  # type: ignore[arg-type]
+        self.assertEqual("uniqueness_rejected", result["outcome"])
+
+        with tempfile.TemporaryDirectory() as temporary_dir:
+            path = Path(temporary_dir) / "exclusions.jsonl"
+            store = SubmissionExclusionStore(path)
+            store.block("owner/model", "Vastai_va16", reason=str(error))
+            reloaded = SubmissionExclusionStore(path)
+            self.assertTrue(reloaded.is_blocked("owner/model", "Vastai_va16"))
+            self.assertFalse(reloaded.is_blocked("owner/model", "Biren_166m"))
+
+    def test_run_persists_uniqueness_rejection_and_does_not_retry_it(self) -> None:
+        with tempfile.TemporaryDirectory() as temporary_dir:
+            root = Path(temporary_dir)
+            args = build_parser().parse_args(
+                [
+                    "--gpus",
+                    "Vastai_va16",
+                    "--task-types",
+                    "text-generation",
+                    "--limit",
+                    "1",
+                    "--max-scan-models",
+                    "1",
+                    "--skip-outcome-sync",
+                    "--skip-history-archive",
+                ]
+            )
+            args.runs_dir = str(root / "runs")
+            args.ledger_path = str(root / "ledger.jsonl")
+            args.outcomes_path = str(root / "outcomes.jsonl")
+            args.claims_path = str(root / "claims.jsonl")
+            args.submission_exclusions_path = str(root / "exclusions.jsonl")
+            args.history_archive_path = str(root / "history.jsonl")
+            client = UniquenessRunClient()
+            discovery = SafeDiscovery()
+
+            first = run_submission(
+                args,
+                now=datetime(2026, 1, 1, 12, tzinfo=timezone.utc),
+                hf_discovery=discovery,  # type: ignore[arg-type]
+                modelhub_client=client,  # type: ignore[arg-type]
+            )
+            second = run_submission(
+                args,
+                now=datetime(2026, 1, 1, 12, 1, tzinfo=timezone.utc),
+                hf_discovery=discovery,  # type: ignore[arg-type]
+                modelhub_client=client,  # type: ignore[arg-type]
+            )
+
+            self.assertEqual(1, first["modelGpuUniquenessRejectedCount"])
+            self.assertEqual(1, client.add_calls)
+            self.assertEqual(0, second["candidateCount"])
+            self.assertEqual(1, second["skipReasonCounts"]["model_gpu_uniqueness_blocklist"])
+
+    def test_concurrent_batch_uses_at_most_one_gpu_per_model(self) -> None:
+        selected = one_candidate_per_model(
+            [
+                candidate("Vastai_va16"),
+                candidate("Biren_166m"),
+                {**candidate("Biren_166m"), "repoId": "owner/other"},
+            ]
+        )
+        self.assertEqual(["owner/model", "owner/other"], [item["repoId"] for item in selected])
+
+
+if __name__ == "__main__":
+    unittest.main()