Marc Brooker

Marc Brooker's avatar
Marc Brooker
🛡️ marcbrooker_at_fediscience.org@momostr.pink
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Databases, serverless, and serverless databases at AWS. Interested in distributed systems, databases, operating systems, virtualization, and remote sensing. I read a lot of papers. Check out my blog at https://brooker.co.za/blog/ Views are my own. Blog: https://brooker.co.za/blog/ GitHub: https://github.com/mbrooker
Recently, one of our testing tools at AWS found an issue with transaction visibility in PostgreSQL, where the order that transactions become visible differs between the primary and replicas. Sergey Melnik dives deep on the AWS Database Blog:
Amazon Web Services
Understanding transaction visibility in PostgreSQL clusters with read replicas | Amazon Web Services
On April 29, 2025, Jepsen published a report about transaction visibility behavior in Amazon RDS for PostgreSQL Multi-AZ clusters. We appreciate Je...