Transparent Multi-Region Routing with NATS Subject Mappings
Deploy the same application to any region without code changes. Let server-side subject mappings handle the routing.
NATS & Distributed Systems
Articles on NATS messaging, JetStream, and distributed systems operations.
Why Your JetStream Handler Runs Twice
JetStream message redelivery is not a bug. But the defaults will surprise you.
What Flush() Actually Does in NATS
NATS Flush is not what you think. It's a round-trip confirmation, not a buffer dump.
Recovering a JetStream Cluster After Quorum Loss
A step-by-step guide to recognizing and recovering from JetStream quorum loss.
Why NATS SubscribeSync Uses 512KB Per Subscription
A customer reported NATS using 166x more memory per subscription than Redis. They were right -- and it's by design.
How NATS Lame Duck Mode Actually Works
The protocol coordination behind zero-downtime NATS server restarts.
Designing NATS Subject Schemas
Subject design is the first decision in a NATS deployment and the hardest to change later. Here's how to get it right.