Simple Mutual Exclusion
When we design services for high availability, we often deploy more than one instance of the same application. It might be two servers behind a load balancer or a few nodes shar...
#Concurrency
Writing on parallel work, mutual exclusion, and the hazards of shared state.
You Know State Is NO Good
Every engineer learns this the hard way. You think the logic is solid, your tests are green, and your deployment goes smoothly. Looks all good, right? Then you have an outage. N...
Local vs Production Debugging
I have been debugging this data workflow tool we built in house lately. It has an Angular UI and a Java backend, and it moves data between different systems like Postgres to Hiv...
Moving from Java to Python
I recently started a new role in AWS networking, and it’s the first time I’ve gone from writing everything in Java to writing almost everything in Python. Honestly, the shift is...