For internet to work, the world need a DNS to translate domain to ip address. But who control those DNS servers?

Monzo assively invested in the microservices philosophy and ship small and often. They have over 2,100 services and deploy over 100 times per day. With that much deploy they build very sophisicated tolling to deploy and rollback automatically.

For detailed query performance analysis, you need EXPLAIN (ANALYZE, BUFFERS) output for an SQL statement. With a parameterized statement, it can be difficult to construct a run-able statement for EXPLAIN (ANALYZE). Sometimes, you don’t even know the parameter values.

Database is the heart of an application. That’s why I always try to find some databse tips links for every issue. This is a quick tip to tune the IO when replicating data. The faster the replication, the better we can rely on read replicate to split load from primary

Nobody cares what functional programming is, at least, not at first. “can we deliver better code, faster?”. It’s because functional programming allow us to write expressive code, with more confidence

Reed-Solomon forward error correction (FEC) is one such coding method. Until the discovery of better coding techniques (Turbo codes and low-density parity codes), it was one of the most powerful ways to make data storage or data transmission resilient against corruption

Being a backend dev, I bited the bullet and did this anyway so it’s great to reflect back and see whats up.

Practical advice to setup SLOs. Other article on SLO from HoneyComb

“Everything Is A File” is one of the most fundamental and widely influential pillars of Unix design philosophy.

This free book is intended to teach the reader how to create an operating system’s kernel called 539kernel.