apscheduler调度器异常错误：skipped: maximum number of running instances reached (1)

水深无声 2021-08-26 13:56 1849阅读 0赞

参考别人的解决方案：[https://pdf-lib.org/Home/Details/10550][https_pdf-lib.org_Home_Details_10550]

参考官方文档：[https://apscheduler.readthedocs.io/en/latest/modules/schedulers/base.html\#apscheduler.schedulers.base.BaseScheduler.add\_job][https_apscheduler.readthedocs.io_en_latest_modules_schedulers_base.html_apscheduler.schedulers.base.BaseScheduler.add_job]

错误信息：  
Execution of job "UtilDecorater.try\_except\_decorater.<locals>.make\_decorater.<locals>.external\_params (trigger: interval\[0:01:00\], next run at: 2020-02-10 22:20:55 CST)" skipped: maximum number of running instances reached (1)  
Execution of job "UtilDecorater.try\_except\_decorater.<locals>.make\_decorater.<locals>.external\_params (trigger: interval\[0:01:00\], next run at: 2020-02-10 22:21:55 CST)" skipped: maximum number of running instances reached (1)  
Execution of job "UtilDecorater.try\_except\_decorater.<locals>.make\_decorater.<locals>.external\_params (trigger: interval\[0:01:00\], next run at: 2020-02-10 22:21:55 CST)" skipped: maximum number of running instances reached (1)  
Execution of job "UtilDecorater.try\_except\_decorater.<locals>.make\_decorater.<locals>.external\_params (trigger: interval\[0:01:00\], next run at: 2020-02-10 22:22:55 CST)" skipped: maximum number of running instances reached (1)  
Execution of job "UtilDecorater.try\_except\_decorater.<locals>.make\_decorater.<locals>.external\_params (trigger: interval\[0:01:00\], next run at: 2020-02-10 22:22:55 CST)" skipped: maximum number of running instances reached (1)  
Execution of job "UtilDecorater.try\_except\_decorater.<locals>.make\_decorater.<locals>.external\_params (trigger: interval\[0:01:00\], next run at: 2020-02-10 22:23:55 CST)" skipped: maximum number of running instances reached (1)  
Execution of job "UtilDecorater.try\_except\_decorater.<locals>.make\_decorater.<locals>.external\_params (trigger: interval\[0:01:00\], next run at: 2020-02-10 22:23:55 CST)" skipped: maximum number of running instances reached (1)

我的实际解决方法：

scheduler = BlockingScheduler()
            if trigger == "interval":
                params = dict(func=aps_func, trigger="interval", seconds=seconds, **kwargs)
            elif trigger == "date":
                params = dict(func=aps_func, trigger="date", run_date=run_date, **kwargs)
            else:
                raise OwnGlobalException(f"暂时还没兼容trigger={trigger}的类型,请先增加此功能!")
            """
                调度器在跑过程中出现异常错误：
                    Execution of job "UtilDecorater.try_except_decorater.<locals>.make_decorater.<locals>.external_params (trigger: interval[0:01:00], next run at: 2020-02-10 22:23:55 CST)" 
                    skipped: maximum number of running instances reached (1)
                异常原因：
                    self._instances[job.id]大于job.max_instances抛出异常。max_instances默认值为1，它表示id相同的任务实例数。
                参考别人的解决方案：https://pdf-lib.org/Home/Details/10550
                我的解决方法：我这里把max_instances设置为100【并发超过100个实例一般很难】
            """
            scheduler.add_job(**params, max_instances=100)
            scheduler.start()
            print(f"新创建一个调度器【{trigger}】成功!")

[https_pdf-lib.org_Home_Details_10550]: https://pdf-lib.org/Home/Details/10550
[https_apscheduler.readthedocs.io_en_latest_modules_schedulers_base.html_apscheduler.schedulers.base.BaseScheduler.add_job]: https://apscheduler.readthedocs.io/en/latest/modules/schedulers/base.html#apscheduler.schedulers.base.BaseScheduler.add_job