Can you tell the difference between the end-to-end latencies of a multi-region and single-region Bufstream cluster?

On the left is the single-region cluster from our last post.

On the right is a test we completed with 100 GiB/s writes replicated through two (!) cloud regions entirely via GCS.

Bufstream: 100 GiB/s of writes and 300 GiB/s of reads at 350ms latency in GCP.

For a cost that’s literally 25x lower than the cheapest Confluent Cloud offers.

Bufstream’s stateless design gives you all of this, with the operational simplicity that lets you sleep at night.

I promise this isn't _just_ a Bufstream shill account, just very proud of the work the team has done on it. 😅

What if I told you that a 1 GiB/s Kafka topic streamed directly into your S3 data lakehouse as an Iceberg table could cost you... $10/hr?

Bufstream does it. It's literally too good to be true.

I spent 20 hours researching them. Here's their story (2 minute read) 🧵

100GB/s in a Bufstream cluster running active-active *across multiple regions*? We're looking at the results right now - and we haven't even approached Bufstream's limit.

We're excited to share the results with the world in the coming weeks. Follow for updates.

A new #Jepsen report! We worked with Buf to analyze the safety of Bufstream, a Kafka-compatible streaming system. We found three safety and two liveness issues in Bufstream 0.1.0, including the loss of acknowledged writes in healthy clusters. These problems were resolved by version 0.1.3 […]