Why Airport Security Feels Random
I’m about to take yet another flight, this time flying to India. I’m excited, but then I can’t seem to pass the thought of why the heck security checks are so random. I had to c...
#Distributed Systems
Writing on coordination, failure modes, and trade-offs in multi-node systems.
Why Over-Engineering Happens
If you’ve worked in software long enough, you’ve probably seen it: a CRUD app serving a handful of users, deployed on a Kubernetes cluster with half the CNCF landscape stitched...
Service Overload Strategies
Service overload happens a lot. If you haven't seen one, count yourself lucky. The first time I watched it take a system down, I realized how serious it’s to get the basics righ...
Designing A Key-Value Store
I’ve been asked once to design a key value store in an interview. It looks easy at first. Then it gets hard, fast. What makes it interesting is how ambiguous it is. I started us...
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...
Hype in Software Development
We live in a time when every month brings a new framework, library, or architectural pattern that promises to change everything. Increasingly often, we come across a new technol...
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...
You Cannot Fix What You Cannot See
I have been working on this data discovery tool for a while, and it keeps showing me how messy our systems really are. The idea behind it is simple. Crawl every database we have...
Ufak Servisler
Ufak servisler(micro services) son zamanlarda yazılım alanında sıkça yaygınlaşan bir yöntem. Micro'yu ufak diye çevirmek hoşuma gitti ama tahminen mikro daha çok kullanılır. Zat...
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...
XA Transactions: A Simple Guide
In early days of computing, there was no need for distributed transactions, everything lived in one place. As number of applications increased, synchronization of the data becom...