Utilizing Concurrency Scaling
The Concurrency Scaling feature provided by Amazon Redshift allows you to support concurrent users and queries for steady query performance. Amazon Redshift utilizes resources that are available in a cluster to maximize throughput for analytical queries. Hence, when multiple queries are to be executed at the same time, Amazon Redshift will utilize workload management (WLM) to execute a few queries at a time so that they complete as soon as possible and don't take up the rest of the queries. This is done instead of you having to run all the queries for longer.
When the Concurrency Scaling feature is turned on, Amazon Redshift can instantly bring up additional redundant clusters to execute the queued-up queries and support burst traffic in the data warehouse. The redundant clusters are automatically shut down once the queries complete/there are no more queries waiting in the queue.
Getting ready
To complete this recipe, you will need the following...