Microservice Architecture

We have developed a video-conferencing application. As being a normal startup and urgency to hit the market, we have not thought about scalability, technical stack support, fast production rollout.

So we had planned to move our monolith application from microservice architecture.
Today I will talk about our journey through it. I will try to cover basic concepts regarding microservice and will try to explain how we have achieved it.

MICROSERVICE: It's smaller broken relatable functionality of your application. What should be the ideal size of this functionality is still a bone of contention. While we have several advantages like faster production rollout, independent module development with various tech support and scalability inbuilt, it can have some issues network communication, too many components to manage and a complex architecture to understand and debug.

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Car Parking Problem

There is n parking slots and n-1 car already parked. Lets say car parked with initial arrangement and we want to make the car to be parked to some other arrangement. Lets say n = 5, inital = free, 3, 4, 1, 2 desired = 1, free, 2, 4 ,3 Give an algorithm with minimum steps needed to get desired arrangement. Told by one of my friend and after a lot of search i really got a nice solution. I will post solution in comment part

Median of Five Numbers

U have 5 NOs , X1,X2,X3,X4,X5 With minimum no. of comparisons we have to find a median. SWAP(X,Y) function is available to u . I have a answer of six comparisons and eight swaps....wait for people to find out by themselves.

Consistent Hashing

I will try to explain consistent hashing with a real world example. Let's assume I have a restaurant with 60 tables and 5 servers (waiter). Each server is given an equal number of tables to serve. Now let's assume we have addition of a new server (waiter), so his addition will be marked in the circle and he will be receiving tables from the previous server to his distance only. Check the attached example. Assume a server (waiter) has left the organisation and we have only 4 servers now. Server3 has left the restaurant, so his table will be assigned to server 4. I am sure you have noticed the load is not equally distributed. But to make the system less prone to addition/removal we just rotate in clockwise and assign range from the previous server to present server. To make sure load is balanced or optimally balanced we need to use virtual nodes. Check links here: http://tom-e-white.com/2007/11/consistent-hashing.html https://www.toptal.com/big-data/...

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