GitHub user wyfok added a comment to the discussion: Child process keeps dying 
during airflow standalone on Raspberry Pi

It appears related to memory. I set below env variables to reduce resource 
usage and now I dont see error log on `api-server` . 


```
export AIRFLOW__CORE__PARALLELISM=1
export AIRFLOW__CORE__DAG_CONCURRENCY=1
export AIRFLOW__CORE__MAX_ACTIVE_TASKS_PER_DAG=1
export AIRFLOW__SCHEDULER__MAX_THREADS=1
```

Is there a min requirement for running airflow3? 

GitHub link: 
https://github.com/apache/airflow/discussions/53612#discussioncomment-13866888

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