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xiaoxia-saas/apps/worker/worker_app/tasks/_startup.py
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fix(P0): 修复worker启动崩溃 - celery信号注册方式错误导致死循环重启
2026-07-18 20:51:08 +08:00

50 lines
1.6 KiB
Python

"""Worker 启动时的初始化任务 — 孤儿任务清理等。"""
import logging
from celery.signals import worker_ready
from worker_app.db import SessionLocal
logger = logging.getLogger(__name__)
ORPHAN_TASK_TIMEOUT_MINUTES = 10
def cleanup_orphan_tasks(timeout_minutes: int = ORPHAN_TASK_TIMEOUT_MINUTES) -> int:
"""清理数据库中超时未更新的 running 任务。
worker 重启或崩溃后,之前处于 running 状态的任务会变成孤儿任务,
一直卡在 running 不动。通过 updated_at 超时判断并标记为 failed。
Args:
timeout_minutes: 超时时间(分钟),默认 10 分钟
Returns:
清理的任务数量
"""
from packages.adapters.sqlalchemy_impl.generation_task_repository import (
SQLAlchemyGenerationTaskRepository,
)
try:
session = SessionLocal()
repo = SQLAlchemyGenerationTaskRepository(session)
count = repo.cleanup_stale_running(timeout_minutes)
session.close()
if count > 0:
logger.warning("清理了 %d 个超时的孤儿 running 任务", count)
else:
logger.info("无孤儿 running 任务需要清理")
return count
except Exception as e:
logger.error("清理孤儿任务失败: %s", e, exc_info=True)
return 0
@worker_ready.connect
def _on_worker_ready(sender, **kwargs):
"""Worker 启动完成后执行 — 清理孤儿任务。"""
logger.info("Worker 启动完成,开始清理孤儿 running 任务...")
count = cleanup_orphan_tasks()
logger.info("Worker 启动清理完成,共清理 %d 个孤儿任务", count)