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...
The fourth and last in my series of blog posts on our new Aurora DSQL database is up! This time, we're looking at what happens during network partitions, and how we preserve consistency, availability, and durability. Check it out:
DSQL Vignette: Wait! Isn't That Impossible? - Marc's Blog
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Today's third blog post on Aurora DSQL: this time looking at the write and commit path, and how conflicts are detected and handled:
DSQL Vignette: Transactions and Durability - Marc's Blog
My second blog post on Aurora DSQL, with a deep dive on how reads work:
DSQL Vignette: Reads and Compute - Marc's Blog
Rust Foundation Collaborates With AWS Initiative to Verify Rust Standard Libraries https://foundation.rust-lang.org/news/rust-foundation-collaborates-with-aws-initiative-to-verify-rust-standard-libraries/ Verify the Safety of the Rust Standard Library
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Verify the Safety of the Rust Standard Library | Amazon Web Services
Rust is one of the fastest growing languages around the world. The Rust community has grown into millions of developers, with more products and ser...
New blog post on ten years of AWS Lambda, and some thoughts on the Lambda PRFAQ:
Ten Years of AWS Lambda - Marc's Blog