This article deals with the fundamentals of how concurrent requests (let me say concurrent transactions) are dealt at the database level. Please note, I will not be talking about optimized design to create a super concurrent online ticket booking system but will try laying out all the foundational stuff that…

Designing distributed systems often leads to resource contention where multiple systems own the same resource and do updates to it. This is a common scenario which we encounter while designing multithreaded applications that are fighting for single resource contention. …

We might be getting regarded as one of those lucky developers if we have not faced any scary scenarios of writing multithreaded applications. But if we are of one those who write highly multithreaded applications, then we need to deal with some really scary and unpredictable kind of stuff. Because…

Most of the times, as developers, we do not define index mapping before pushing data to index. Most often we deal with simple records which don’t include complex objects and are plain simple one level hash representation such as below { name: “vk”, age: “29”, attributes: “normal”…