Utilizing concurrency scaling for provisioned clusters
The concurrency scaling feature in Amazon Redshift allows you to support concurrent users and queries for steady query performance. Amazon Redshift utilizes resources that are available in a data warehouse to maximize throughput for an analytical query. Amazon Redshift uses WLM to optimize query execution by running a limited number of queries concurrently, prioritizing those that can complete quickly and managing the remaining queries to ensure efficient resource utilization and overall performance.
With the concurrency scaling feature turned on, Amazon Redshift is able to instantly bring up additional redundant data warehouses to run the queued-up queries and support burst traffic into the data warehouse. The redundant data warehouses are automatically shut down once the queries complete/there are no more queries waiting in the queue.
Note
In Amazon Redshift, serverless concurrency scaling is enabled by...