You can now monitor and control your usage and associated cost for Amazon Redshift Spectrum and Concurrency Scaling features. You can create daily, weekly, and monthly usage limits, and define actions that Amazon Redshift automatically takes if those limits are reached to maintain your budget with predictability. Actions include: logging an event to a system table, alerting with a CloudWatch alarm, notifying an administrator with SNS, and disabling further usage. Amazon Redshift Spectrum enables you to power a lake house architecture to directly query and join data across your data warehouse and data lake, and Concurrency Scaling enables you to support thousands of concurrent users and queries with consistently fast query performance.
Source:: Amazon AWS