Code & Cluster

Unique ID generation is a deceptively simple task in application development. While it can seem trivial in a monolithic system, getting it r...

Introduction Facebook (Meta) application handles billions of requests per second. The responses are built using thousands of items that need...

Have you ever wondered how Google docs, Figma, Notion provide real time collaborative editing? The challenge is : What happens when 2 user...

In databases, the terms isolation level and consistency level/model are sometimes used interchangeably. "Read repeatable" and ...

Overview In this blog I describe a non trivial concurrency example in the Go programming language. The code is part of my Dynago project  ht...

Introduction Multi version concurrency control (MVCC) is a popular optimistic technique used in modern databases for concurrency control. MV...

Introduction Optimistic concurrency control refers to concurrency control in databases without the use of explicit locks. Traditionally it i...

Introduction Dynago is my  hobby project to implement a minimal implementation of the distributed system described the paper Dynamo : Amazon...

Overview Replication means making a copy of the data for future use in the case of failures or may be to scale. Why is it a big deal ? We co...