724 lines
25 KiB
Python
724 lines
25 KiB
Python
from __future__ import annotations
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import json
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from datetime import datetime, timedelta, timezone
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from typing import Any
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from app.config import settings
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from app.enums.celery_queue import CeleryQueue
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from app.enums.generation_status import GenerationRecordPipelineStage
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from app.enums.generation_task import (
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ALLOWED_GENERATION_MODES,
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ChatGenerationPipelineStage,
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ChatGenerationTaskEventType,
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GenerationOwnerType,
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GenerationType,
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PROVIDER_FAILED_STATUSES,
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PROVIDER_SUCCESS_STATUSES,
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)
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from app.models.base import async_session
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from app.models.chat_generation_task import ChatGenerationTask
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from app.services.error_codes import extract_error_message
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from app.services.generation.log_service import log_provider_call, log_task_event
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from app.services.generation.pipeline.db_lock_service import DatabaseRowLockBusy
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from app.services.generation.pipeline.lifecycle_service import (
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mark_owner_failed_and_refund_once,
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notify_owner_finished,
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)
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from app.services.generation.pipeline.owner_service import (
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GenerationOwner,
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is_attempt_current,
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load_generation_owner,
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load_generation_owner_for_update_retry,
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normalize_owner_type,
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owner_is_generating,
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owner_mode,
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owner_provider_task_id,
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owner_type_of,
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redis_owner_item_id,
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)
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from app.services.generation.poll_schedule_service import (
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build_default_poll_schedule,
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build_video_pending_poll_schedule,
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ensure_video_poll_fields,
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is_final_poll_due,
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is_poll_not_due,
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is_video_generation_task,
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)
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from app.services.generation.provider_service import poll_provider_task
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from app.services.media_token_usage_snapshot_service import (
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sync_chat_generation_task_media_token_snapshot,
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sync_generation_record_media_token_snapshot,
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)
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from app.services.redis_registry_service import (
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RedisExecutionLockError,
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RedisExecutionLockLease,
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datetime_to_epoch,
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ensure_aware_utc,
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redis_remove_registry_item,
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redis_upsert_registry_item,
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utc_now,
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)
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from app.tasks.async_runner import run_async
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from app.tasks.celery_app import celery_app
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POLL_QUEUE = CeleryQueue.GEN_PROVIDER_POLL.value
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def _now() -> datetime:
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return datetime.now(timezone.utc)
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def _is_success(status: str | None) -> bool:
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return str(status or "").lower() in PROVIDER_SUCCESS_STATUSES
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def _is_failed(status: str | None) -> bool:
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return str(status or "").lower() in PROVIDER_FAILED_STATUSES
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def _stage(owner: GenerationOwner, chat_stage: ChatGenerationPipelineStage) -> str:
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if isinstance(owner, ChatGenerationTask):
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return chat_stage.value
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try:
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return GenerationRecordPipelineStage(chat_stage.value).value
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except ValueError:
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return chat_stage.value
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def _engine_snapshot(owner: GenerationOwner) -> dict:
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try:
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data = json.loads(owner.engine_snapshot_json or "{}")
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return data if isinstance(data, dict) else {}
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except Exception:
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return {}
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async def _log_poll_provider_call_after_commit(
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owner: GenerationOwner,
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*,
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provider_response: Any,
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) -> None:
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"""Provider logs use an independent session, so the owner row must be committed first."""
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snapshot = _engine_snapshot(owner)
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await log_provider_call(
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owner,
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provider=snapshot.get("provider") or "ark",
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api_type=f"{owner.gen_type}_poll",
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model=snapshot.get("model_name"),
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engine_id=owner.engine_id,
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status="success",
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provider_task_id=owner_provider_task_id(owner),
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response_data=provider_response,
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)
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def _registry_id(owner: GenerationOwner) -> str:
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return redis_owner_item_id(
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owner_type_of(owner), owner.id, int(owner.generation_attempt_no or 1)
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)
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def _poll_lease_until(now: datetime | None = None) -> datetime:
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return (now or _now()) + timedelta(
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seconds=int(settings.POLL_TASK_LEASE_SECONDS or 300)
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)
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def _lock_key(owner_type: str, owner_id: str, attempt_no: int) -> str:
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return (
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f"{settings.GENERATION_POLL_LOCK_KEY_PREFIX}:"
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f"{owner_type}:{owner_id}:attempt:{attempt_no}"
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)
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def _build_poll_active_payload(
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owner: GenerationOwner,
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*,
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reason: str,
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next_poll_at: datetime | None,
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check_at: datetime | None,
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) -> dict[str, Any]:
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return {
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"owner_type": owner_type_of(owner),
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"owner_id": owner.id,
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"task_id": owner.id,
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"generation_attempt_no": int(owner.generation_attempt_no or 1),
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"provider_task_id": owner_provider_task_id(owner),
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"generation_mode": owner_mode(owner),
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"gen_type": owner.gen_type,
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"stage": owner.pipeline_stage or "",
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"queue": POLL_QUEUE,
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"poll_count": int(owner.poll_count or 0),
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"poll_error_count": int(getattr(owner, "poll_error_count", 0) or 0),
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"manual_retry_count": int(getattr(owner, "manual_retry_count", 0) or 0),
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"poll_started_at": datetime_to_epoch(owner.poll_started_at)
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if owner.poll_started_at
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else None,
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"poll_interval_seconds": int(owner.poll_interval_seconds or 0),
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"last_poll_at": datetime_to_epoch(owner.last_poll_at)
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if owner.last_poll_at
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else None,
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"next_poll_at": datetime_to_epoch(ensure_aware_utc(next_poll_at))
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if next_poll_at
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else None,
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"poll_lease_until": datetime_to_epoch(owner.poll_lease_until)
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if owner.poll_lease_until
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else None,
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"deadline_at": datetime_to_epoch(owner.deadline_at)
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if owner.deadline_at
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else None,
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"check_at": datetime_to_epoch(ensure_aware_utc(check_at))
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if check_at
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else None,
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"updated_at": datetime_to_epoch(utc_now()),
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"reason": reason,
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}
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async def register_poll_active(
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owner: GenerationOwner,
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*,
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check_at: datetime,
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reason: str,
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next_poll_at: datetime | None = None,
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) -> None:
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await redis_upsert_registry_item(
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hash_key=settings.POLL_ACTIVE_REDIS_HASH_KEY,
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zset_key=settings.POLL_ACTIVE_REDIS_ZSET_KEY,
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item_id=_registry_id(owner),
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payload=_build_poll_active_payload(
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owner,
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reason=reason,
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next_poll_at=next_poll_at,
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check_at=check_at,
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),
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check_at=check_at,
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log_context="poll_active",
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)
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async def remove_poll_active(
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owner: GenerationOwner | None = None,
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*,
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owner_type: str | None = None,
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owner_id: str | None = None,
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attempt_no: int | None = None,
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) -> None:
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if owner is not None:
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item_id = _registry_id(owner)
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else:
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item_id = redis_owner_item_id(owner_type, str(owner_id or ""), attempt_no)
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await redis_remove_registry_item(
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hash_key=settings.POLL_ACTIVE_REDIS_HASH_KEY,
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zset_key=settings.POLL_ACTIVE_REDIS_ZSET_KEY,
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item_id=item_id,
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log_context="poll_active",
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)
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async def _sync_snapshot(
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db, owner: GenerationOwner, provider_response: Any = None
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) -> None:
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if isinstance(owner, ChatGenerationTask):
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await sync_chat_generation_task_media_token_snapshot(
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db, owner, provider_response=provider_response
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)
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else:
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await sync_generation_record_media_token_snapshot(
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db, owner, provider_response=provider_response
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)
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async def _mark_failed(
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db,
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owner: GenerationOwner,
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*,
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message: str,
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stage: ChatGenerationPipelineStage,
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event_type: str,
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detail: Any = None,
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) -> None:
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await mark_owner_failed_and_refund_once(
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db,
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owner,
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error_message=message,
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pipeline_stage=_stage(owner, stage),
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)
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owner.next_poll_at = None
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owner.poll_claim_token = None
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owner.poll_lease_until = None
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await db.commit()
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await notify_owner_finished(db, owner)
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await db.commit()
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await remove_poll_active(owner)
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await log_task_event(
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owner,
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event_type=event_type,
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message=message,
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detail=detail,
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to_stage=owner.pipeline_stage,
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)
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async def _schedule_next_poll(
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db,
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owner: GenerationOwner,
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*,
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reason: str,
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default_delay_seconds: int | None = None,
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) -> None:
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current = _now()
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schedule = (
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build_video_pending_poll_schedule(owner, now=current)
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if is_video_generation_task(owner)
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else build_default_poll_schedule(
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owner,
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now=current,
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delay_seconds=default_delay_seconds,
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reason=reason,
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)
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)
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owner.pipeline_stage = _stage(owner, ChatGenerationPipelineStage.WAITING_REMOTE)
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owner.next_poll_at = schedule.next_poll_at
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owner.poll_interval_seconds = schedule.poll_interval_seconds
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owner.poll_claim_token = None
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owner.poll_lease_until = None
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await db.commit()
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await register_poll_active(
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owner,
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check_at=schedule.next_poll_at,
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next_poll_at=schedule.next_poll_at,
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reason=schedule.reason,
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)
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await log_task_event(
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owner,
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event_type=ChatGenerationTaskEventType.POLL_SCHEDULED.value,
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message=f"已登记下一次轮询。reason={schedule.reason}",
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detail={
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"next_poll_at": schedule.next_poll_at,
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"delay_seconds": schedule.delay_seconds,
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},
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)
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if schedule.direct_countdown:
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poll_generation_task.apply_async(
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args=[owner.id],
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kwargs={
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"owner_type": owner_type_of(owner),
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"generation_attempt_no": int(owner.generation_attempt_no or 1),
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"force_due": False,
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},
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queue=POLL_QUEUE,
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countdown=max(0, int(schedule.delay_seconds)),
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)
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|
|
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async def _resolve_attempt(
|
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task_id: str, *, owner_type: str, message_attempt: int | None
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) -> int | None:
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async with async_session() as db:
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owner = await load_generation_owner(
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db, owner_type=owner_type, owner_id=task_id, for_update=False
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)
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if not owner:
|
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return None
|
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if not is_attempt_current(owner, message_attempt):
|
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await remove_poll_active(
|
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owner_type=owner_type,
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owner_id=task_id,
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attempt_no=message_attempt,
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)
|
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await log_task_event(
|
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owner,
|
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event_type=ChatGenerationTaskEventType.STALE_ATTEMPT_MESSAGE_SKIPPED.value,
|
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message="轮询消息属于旧生成轮次，已跳过",
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detail={
|
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"message_attempt": message_attempt,
|
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"current_attempt": owner.generation_attempt_no,
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},
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)
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return None
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|
return int(owner.generation_attempt_no or 1)
|
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|
|
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async def _restore_after_lock_error(
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*,
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owner_type: str,
|
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owner_id: str,
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attempt_no: int,
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claim_token: str,
|
|
) -> None:
|
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async with async_session() as db:
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owner = await load_generation_owner(
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db,
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owner_type=owner_type,
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owner_id=owner_id,
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for_update=True,
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)
|
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if not owner or not is_attempt_current(owner, attempt_no):
|
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return
|
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if owner.poll_claim_token != claim_token:
|
|
return
|
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owner.pipeline_stage = _stage(owner, ChatGenerationPipelineStage.WAITING_REMOTE)
|
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owner.poll_claim_token = None
|
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owner.poll_lease_until = None
|
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owner.next_poll_at = _now()
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await db.commit()
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await register_poll_active(
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owner,
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check_at=owner.next_poll_at,
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next_poll_at=owner.next_poll_at,
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reason="poll_execution_lock_error",
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)
|
|
|
|
|
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async def _run(
|
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task_id: str,
|
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*,
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owner_type: str = GenerationOwnerType.CHAT_GENERATION_TASK.value,
|
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generation_attempt_no: int | None = None,
|
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force_due: bool = False,
|
|
):
|
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normalized_owner_type = normalize_owner_type(owner_type)
|
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effective_attempt = await _resolve_attempt(
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task_id,
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owner_type=normalized_owner_type,
|
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message_attempt=generation_attempt_no,
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)
|
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if effective_attempt is None:
|
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return
|
|
|
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lease = await RedisExecutionLockLease.acquire(
|
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lock_key=_lock_key(normalized_owner_type, task_id, effective_attempt),
|
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ttl_seconds=int(settings.GENERATION_POLL_LOCK_TTL_SECONDS or 300),
|
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log_context="generation_poll",
|
|
renew_interval_seconds=int(
|
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settings.REDIS_EXECUTION_LOCK_RENEW_INTERVAL_SECONDS or 30
|
|
),
|
|
)
|
|
if lease is None:
|
|
return
|
|
|
|
claim_started = False
|
|
try:
|
|
async with async_session() as db:
|
|
owner = await load_generation_owner(
|
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db,
|
|
owner_type=normalized_owner_type,
|
|
owner_id=task_id,
|
|
for_update=True,
|
|
)
|
|
if not owner:
|
|
await remove_poll_active(
|
|
owner_type=normalized_owner_type,
|
|
owner_id=task_id,
|
|
attempt_no=effective_attempt,
|
|
)
|
|
return
|
|
if not is_attempt_current(owner, effective_attempt):
|
|
await remove_poll_active(owner)
|
|
return
|
|
if (
|
|
isinstance(owner, ChatGenerationTask)
|
|
and owner.generation_mode not in ALLOWED_GENERATION_MODES
|
|
):
|
|
await remove_poll_active(owner)
|
|
return
|
|
if not owner_is_generating(owner) or owner.pipeline_stage not in {
|
|
_stage(owner, ChatGenerationPipelineStage.WAITING_REMOTE),
|
|
_stage(owner, ChatGenerationPipelineStage.POLLING),
|
|
}:
|
|
await remove_poll_active(owner)
|
|
return
|
|
|
|
current = _now()
|
|
if is_video_generation_task(owner):
|
|
ensure_video_poll_fields(owner, now=current)
|
|
# Redis execution lock is the authoritative single-worker guard.
|
|
# A stale database lease left by a crashed worker must not block the
|
|
# worker that successfully acquired the current Redis lock.
|
|
if not force_due and is_poll_not_due(owner, now=current):
|
|
await db.commit()
|
|
await register_poll_active(
|
|
owner,
|
|
check_at=owner.next_poll_at,
|
|
next_poll_at=owner.next_poll_at,
|
|
reason="poll_task_not_due",
|
|
)
|
|
return
|
|
|
|
final_poll = is_final_poll_due(owner, now=current)
|
|
if not owner_provider_task_id(owner):
|
|
await _mark_failed(
|
|
db,
|
|
owner,
|
|
message="任务轮询超时" if final_poll else "缺少外部任务ID",
|
|
stage=ChatGenerationPipelineStage.TIMEOUT
|
|
if final_poll
|
|
else ChatGenerationPipelineStage.FAILED,
|
|
event_type=ChatGenerationTaskEventType.TASK_TIMEOUT.value
|
|
if final_poll
|
|
else ChatGenerationTaskEventType.POLL_FAILED.value,
|
|
)
|
|
return
|
|
|
|
owner.pipeline_stage = _stage(owner, ChatGenerationPipelineStage.POLLING)
|
|
owner.poll_claim_token = lease.token
|
|
owner.poll_lease_until = _poll_lease_until(current)
|
|
owner.poll_count = int(owner.poll_count or 0) + 1
|
|
owner.last_poll_at = current
|
|
await db.commit()
|
|
claim_started = True
|
|
await register_poll_active(
|
|
owner,
|
|
check_at=owner.poll_lease_until,
|
|
next_poll_at=owner.next_poll_at,
|
|
reason="polling_lease",
|
|
)
|
|
|
|
try:
|
|
poll_result = await poll_provider_task(db, owner)
|
|
await lease.ensure_owned()
|
|
owner = await load_generation_owner_for_update_retry(
|
|
db,
|
|
owner_type=normalized_owner_type,
|
|
owner_id=task_id,
|
|
)
|
|
if not owner or not is_attempt_current(owner, effective_attempt):
|
|
await remove_poll_active(
|
|
owner_type=normalized_owner_type,
|
|
owner_id=task_id,
|
|
attempt_no=effective_attempt,
|
|
)
|
|
return
|
|
if owner.poll_claim_token != lease.token:
|
|
return
|
|
|
|
status = poll_result.get("status")
|
|
response_data = poll_result.get("response_data")
|
|
try:
|
|
provider_response = json.loads(response_data or "{}")
|
|
except Exception:
|
|
provider_response = {"raw": response_data}
|
|
if _is_success(status):
|
|
if owner.gen_type == GenerationType.IMAGE.value:
|
|
owner.remote_result_url = poll_result.get("image_url")
|
|
owner.image_tokens_used = int(
|
|
poll_result.get("image_tokens", 0) or 0
|
|
)
|
|
else:
|
|
owner.remote_result_url = poll_result.get("video_url")
|
|
owner.video_tokens_used = int(
|
|
poll_result.get("video_tokens", 0) or 0
|
|
)
|
|
owner.provider_response_json = response_data
|
|
await _sync_snapshot(db, owner, response_data)
|
|
if not owner.remote_result_url:
|
|
await _mark_failed(
|
|
db,
|
|
owner,
|
|
message="供应商任务成功但未返回结果URL",
|
|
stage=ChatGenerationPipelineStage.FAILED,
|
|
event_type=ChatGenerationTaskEventType.POLL_FAILED.value,
|
|
detail=poll_result,
|
|
)
|
|
await _log_poll_provider_call_after_commit(
|
|
owner, provider_response=provider_response
|
|
)
|
|
return
|
|
owner.pipeline_stage = _stage(
|
|
owner, ChatGenerationPipelineStage.RESULT_READY
|
|
)
|
|
owner.poll_error_count = 0
|
|
owner.poll_claim_token = None
|
|
owner.poll_lease_until = None
|
|
owner.next_poll_at = None
|
|
await db.commit()
|
|
await _log_poll_provider_call_after_commit(
|
|
owner, provider_response=provider_response
|
|
)
|
|
await remove_poll_active(owner)
|
|
await log_task_event(
|
|
owner,
|
|
event_type=ChatGenerationTaskEventType.POLL_SUCCESS.value,
|
|
to_stage=owner.pipeline_stage,
|
|
)
|
|
from app.tasks.generation_download_tasks import (
|
|
enqueue_download_task,
|
|
)
|
|
|
|
await enqueue_download_task(
|
|
db, owner, reason="poll_success_result_ready"
|
|
)
|
|
return
|
|
|
|
if _is_failed(status):
|
|
owner.provider_response_json = response_data
|
|
await _mark_failed(
|
|
db,
|
|
owner,
|
|
message=poll_result.get("error")
|
|
or f"供应商任务失败: {status}",
|
|
stage=ChatGenerationPipelineStage.FAILED,
|
|
event_type=ChatGenerationTaskEventType.POLL_FAILED.value,
|
|
detail=poll_result,
|
|
)
|
|
await _log_poll_provider_call_after_commit(
|
|
owner, provider_response=provider_response
|
|
)
|
|
return
|
|
|
|
if final_poll:
|
|
await _mark_failed(
|
|
db,
|
|
owner,
|
|
message="任务轮询超时",
|
|
stage=ChatGenerationPipelineStage.TIMEOUT,
|
|
event_type=ChatGenerationTaskEventType.TASK_TIMEOUT.value,
|
|
detail=poll_result,
|
|
)
|
|
await _log_poll_provider_call_after_commit(
|
|
owner, provider_response=provider_response
|
|
)
|
|
return
|
|
|
|
owner.poll_error_count = 0
|
|
await _schedule_next_poll(
|
|
db, owner, reason="poll_pending_next"
|
|
)
|
|
await _log_poll_provider_call_after_commit(
|
|
owner, provider_response=provider_response
|
|
)
|
|
await log_task_event(
|
|
owner,
|
|
event_type=ChatGenerationTaskEventType.POLL_PENDING.value,
|
|
message=f"status={status}",
|
|
)
|
|
except (RedisExecutionLockError, DatabaseRowLockBusy):
|
|
try:
|
|
await db.rollback()
|
|
except Exception:
|
|
pass
|
|
raise
|
|
except Exception as exc:
|
|
try:
|
|
await db.rollback()
|
|
except Exception:
|
|
pass
|
|
await lease.ensure_owned()
|
|
owner = await load_generation_owner_for_update_retry(
|
|
db,
|
|
owner_type=normalized_owner_type,
|
|
owner_id=task_id,
|
|
)
|
|
if not owner or not is_attempt_current(owner, effective_attempt):
|
|
await remove_poll_active(
|
|
owner_type=normalized_owner_type,
|
|
owner_id=task_id,
|
|
attempt_no=effective_attempt,
|
|
)
|
|
return
|
|
if owner.poll_claim_token != lease.token:
|
|
return
|
|
if is_final_poll_due(owner, now=_now()):
|
|
await _mark_failed(
|
|
db,
|
|
owner,
|
|
message="任务轮询超时",
|
|
stage=ChatGenerationPipelineStage.TIMEOUT,
|
|
event_type=ChatGenerationTaskEventType.TASK_TIMEOUT.value,
|
|
)
|
|
return
|
|
owner.poll_error_count = int(owner.poll_error_count or 0) + 1
|
|
if is_video_generation_task(owner):
|
|
await _schedule_next_poll(
|
|
db, owner, reason="poll_exception_retry"
|
|
)
|
|
return
|
|
if owner.poll_error_count > int(
|
|
settings.CHATAPI_ASYNC_MAX_RETRIES or 3
|
|
):
|
|
error_message = (
|
|
extract_error_message(exc, "轮询")
|
|
if callable(extract_error_message)
|
|
else str(exc)
|
|
)
|
|
await _mark_failed(
|
|
db,
|
|
owner,
|
|
message=error_message,
|
|
stage=ChatGenerationPipelineStage.FAILED,
|
|
event_type=ChatGenerationTaskEventType.POLL_FAILED.value,
|
|
)
|
|
else:
|
|
delay = int(
|
|
settings.CHATAPI_ASYNC_RETRY_BACKOFF_SECONDS or 30
|
|
) * owner.poll_error_count
|
|
await _schedule_next_poll(
|
|
db,
|
|
owner,
|
|
reason="poll_exception_retry",
|
|
default_delay_seconds=delay,
|
|
)
|
|
except (RedisExecutionLockError, DatabaseRowLockBusy):
|
|
if claim_started:
|
|
try:
|
|
await _restore_after_lock_error(
|
|
owner_type=normalized_owner_type,
|
|
owner_id=task_id,
|
|
attempt_no=effective_attempt,
|
|
claim_token=lease.token,
|
|
)
|
|
except Exception:
|
|
logger.exception(
|
|
"轮询执行锁异常后的状态恢复失败 owner_type=%s owner_id=%s attempt=%s",
|
|
normalized_owner_type,
|
|
task_id,
|
|
effective_attempt,
|
|
)
|
|
raise
|
|
finally:
|
|
await lease.close()
|
|
|
|
|
|
if celery_app:
|
|
|
|
@celery_app.task(
|
|
name="generation.poll_generation_task",
|
|
bind=True,
|
|
max_retries=3,
|
|
default_retry_delay=30,
|
|
)
|
|
def poll_generation_task(
|
|
self,
|
|
task_id: str,
|
|
force_due: bool = False,
|
|
owner_type: str = GenerationOwnerType.CHAT_GENERATION_TASK.value,
|
|
generation_attempt_no: int | None = None,
|
|
):
|
|
try:
|
|
return run_async(
|
|
_run(
|
|
task_id,
|
|
owner_type=owner_type,
|
|
generation_attempt_no=generation_attempt_no,
|
|
force_due=bool(force_due),
|
|
)
|
|
)
|
|
except Exception as exc:
|
|
retries = int(getattr(self.request, "retries", 0) or 0) + 1
|
|
countdown = int(
|
|
settings.CHATAPI_ASYNC_RETRY_BACKOFF_SECONDS or 30
|
|
) * max(1, retries)
|
|
raise self.retry(exc=exc, countdown=countdown)
|
|
else:
|
|
|
|
class _DisabledTask:
|
|
def delay(self, *args, **kwargs):
|
|
raise RuntimeError("Celery is disabled")
|
|
|
|
def apply_async(self, *args, **kwargs):
|
|
raise RuntimeError("Celery is disabled")
|
|
|
|
poll_generation_task = _DisabledTask()
|