The query cannot be added to the rq queue to submit the query

In some scenarios, a large number of queries are submitted, and some queries cannot enter the rq queue and then be submitted to the query engine. How to solve this situation?

Which scenarios? What version of Redash? How did you install?

Sorry about that.

Version: V9.0.0
Install Way: docker
OS: Centos 7

If i submitted 50~100 queries to query engine, there are 1~5 queries can’t be submitted rq queue. So these queries are going to in queue status. Never be submitted to query engine. Thank you!