AWS Big Data Blog
Category: AWS Key Management Service
How to retain system tables’ data spanning multiple HAQM Redshift clusters and run cross-cluster diagnostic queries
In this blog post, I present a solution that exports system tables from multiple HAQM Redshift clusters into an HAQM S3 bucket. This solution is serverless, and you can schedule it as frequently as every five minutes. The AWS CloudFormation deployment template that I provide automates the solution setup in your environment. The system tables’ data in the HAQM S3 bucket is partitioned by cluster name and query execution date to enable efficient joins in cross-cluster diagnostic queries.