Unlock the power of Elasticsearch: dive into Elasticsearch, grasp basic search queries, and explore lexical search — Contents · Introduction · Starting where we left off, Elasticsearch ∘ Sample Dataset ∘ Understanding ElasticSearch Queries ∘ Understanding the response ∘ A basic search query · Lexical Search · Problems in our current search query ∘ Similar words return different results ∘ Lack of understanding of what the user wants ∘ Similar words…

Before you begin… I wanted to write about ElasticSearch for a long time. While reading, experimenting, and trying to write about it, I realized it would be way too long to cover everything in a blog post, so I decided to split it into multiple smaller posts. This post is an introduction to…

Go: What is it? By now, unless you have been living under a rock, you have probably heard about Golang. Golang or Go is a programming language that was developed by Google in the late 2000s. One of its most interesting features is its support for concurrency by using goroutines, which are like lightweight…

Let’s look at what Kafka is, how it works, and when we should use it! — I have recently been reading more and more about Kafka and how it works under the hood. While that is very interesting, I realized there is quite a bit I didn’t know about Kafka under the hood. Moreover, it seemed wrong to start discussing how Kafka works without exploring what…

I explored the code behind one of the most useful and “over-engineered” commands in Unix — Why Did I Want To Talk About ls? I thought exploring a bit of Linux code and how it works internally would be fun. I have felt that my knowledge of operating systems is rather limited, so I thought that diving into the code and trying to understand it would push me to really understand some of the…

That differentiates it from other databases — What is Cassandra? Cassandra is a popular distributed NoSQL database inspired by the famous Dynamo paper. At its core lies its ability to handle a massive amount of scale and still deliver fast performance. It is fault-tolerant and highly available. …

Learn how to use the Dynamo Family, AWS DynamoDB, Cassandra, and SimpleDB in your system design — Quick Introduction Before We Begin Back in 2004, Amazon was running a large distributed Oracle database cluster. Imagine a lot of servers, running a lot of bulky closed-source proprietary software not really focused on scale and availability. They were pushing the limits of the commercial database at the scale they were at.

A Quick Primer: What is Cassandra? I think most software engineers know about Cassandra. Even if they don’t understand it, they have at least heard Cassandra being used in some context or in some conversation at some point in their software engineering career. The same was mostly true for me until I started working with it…

Quick Introduction One of the most popular attacks that most software engineers have heard of at some point is CSRF or cross-site request forgery(don’t worry, the name makes it sound more complex than it really is). Reading about it, I found it really interesting how people find clever ways to bypass security…