[D] Airflow Scheduler issue (LocalExecutor, CeleryExecutor and SequentialExecutor) [airflow]

["bkarankar (via GitHub)" <gi...@apache.org>]

GitHub user bkarankar created a discussion: Airflow Scheduler issue (LocalExecutor, CeleryExecutor and SequentialExecutor)

we have multiple instance for airflow installed on ubuntu machine. we are facing issue with scheduler in all the instances. scheduller stopped responding in few minutes and on airflow web, it's gives below error.

The scheduler does not appear to be running. Last heartbeat was received 4 days ago.
The DAGs list may not update, and new tasks will not be scheduled.

we tried to changed all possible settings as suggested in documentation but it didnt' works. it's look like we may need some additional config or it can be a bug.
please help us to find a best possible solution to have stable scheduler service. please suggest.

GitHub link: https://github.com/apache/airflow/discussions/49215

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