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https://issues.apache.org/jira/browse/AIRFLOW-2761?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16639418#comment-16639418
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Iuliia Volkova commented on AIRFLOW-2761:
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[~yrqls21], oh, okey. Great! I just didn't see open PR, thank you! 

> Parallelize Celery Executor enqueuing
> -------------------------------------
>
>                 Key: AIRFLOW-2761
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-2761
>             Project: Apache Airflow
>          Issue Type: Improvement
>            Reporter: Kevin Yang
>            Priority: Major
>
> Currently celery executor enqueues in an async fashion but still doing that 
> in a single process loop. This can slows down scheduler loop and creates 
> scheduling delay if we have large # of task to schedule in a short time, e.g. 
> UTC midnight we need to schedule large # of sensors in a short period.



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