We had developed a feature for a game where we needed to create a room and constantly check the number of users who have joined the room.

Microservices are rapidly gaining popularity. As we continue to add brand new services, that plug into our already running system, it becomes really important to do scalability/performance testing. Below is a list of things that can go wrong and performance testing can help you identify. Identify if the database is…

In this part, we will discuss ElasticSearch top-down. Please refer to Part 1 of this series if you want to understand ElasticSearch bottom up. This section has a prerequisite of high-level understanding of distributed systems(consistency, availability, durability etc) What is an Elastic Search cluster Shards Segments in Lucene Index The…

Recently we used elastic search to implement wildcard search functionality. After spending a week with this, we realized while it's easy to get started, but having a good understanding of the basics of elastic search, can help implement the solution in a much more optimized manner. Elastic Search has multiple…

I started reading Shoe Dog, book in which Phil Knight describes how he worked day in, day out and created Nike. …

We have a video player application that we developed as a weekend hobby project which does a few things like slow motion, reverse and zoom. Having done the video listing part of the application with very little emphasis on design and maintainability of the code, soon after adding new features…

Just in case you have not read Part 1 Silk Route Market There was this great market called silk street/route market 20 minutes from my hotel, I enjoy bargaining and thought I can buy some nice(and cheap ;) ) gifts for friends and family. …

I landed in Peking(Beijing) in may last year. Most cities in our part of the world have their peculiar smell, Peking has a very profound one, when you land your nose tells you that you are in the right city. This was my first trip to Peking and that too…

Back in College I along with my friends developed an application to calculate Serve Speed in Tennis. Tennis Serve-O-Meter For the above application we played Serve video in Slow Motion and asked users to choose points of ball bounce and ball contact to get the time taken by ball to…