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A Self-taught Software Developer who loves to read, write and learn about tech.
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System design is one of the most important aspect of software engineering. System design problems are usually open-ended discussions. Let’s design a cloud file storage service like Google drive or drop box. These services provides a platform that all...
Let's start with a simple example showing why you would need indexing in a database. Suppose we have a table called costing with three columns company_id, unit, unit_cost which is completely unordered. If we run the below query - SELECT company_...
I am sure, you must have heard of Proxy and reverse proxy server. This is a very important topic, when we talk about backend engineering & computer networking. Some times it's very confusing to find the exact difference between both of them. I will s...
Load Balancer (LB) is another critical component of any distributed system. Before, directly diving into client side load balancing we need to first understand about web application servers and load balancing. How a typical web application behaves? W...
Dealing with large datasets is often daunting. With limited computing resources, particularly memory, it can be challenging to perform even basic tasks like counting distinct elements, membership check, filtering duplicate elements, finding minimum, ...
Twitter Usage Statistics 500MN tweets per day ~7000 tweets per second 8,00,000+ Queries per second Typical Database server config at Twitter HP DL380, 72GB RAM, 24 disk RAID10 Twitter's Old Tweet store They were using MySQL. Pretty fast Very rob...
