Forem: Rumesh Madhusanka

OS threads vs User threads

Rumesh Madhusanka — Thu, 19 Nov 2020 10:51:28 +0000

why do many programming languages map their threads to kernel level threads?
Programming languages like go uses user level threads and gained a good amount of efficiency. But why not others(Java, Python...) have followed the same approach?

Examples for bad software architecture

Rumesh Madhusanka — Fri, 22 May 2020 10:18:49 +0000

What are the existing well known software that has bad architecture and can be redesigned to improve its quality? I need this information to carry out a case study.

How to log everything?

Rumesh Madhusanka — Sun, 23 Feb 2020 16:57:33 +0000

It is possible to log everything happens in a software such as user clicks, database queries etc and then use those logs to find out when a bug arises. Is there a standard way to do that? What should be logged and what should be kept out of it?

Data privacy and protection in healthcare

Rumesh Madhusanka — Thu, 20 Feb 2020 06:07:27 +0000

I am developing a medical health record system which emphasizes on data privacy and protection for my semester long project.

Could you name good source to refer about data privacy and security in healthcare?

Personal experiences on developing duch systems, examples are helpful too.

Node Express REST API

Rumesh Madhusanka — Thu, 02 Jan 2020 10:43:41 +0000

My semester end project for an Airline Reservation System.

Node Express REST API

Features

Triggers
Functions
Views
Stored procedures
Indexing
Using transactions where necessary in Database
Node Express REST API
Using promises
Documentation with Swagger(Open API 2.0)
Centralized error handling
Passwords hashed using bcrypt
Authentication with jwt
User input validation using hapi/joi
Uses promise-mysql and connection pooling
Load balancing using pm2 process management
Using Docker
MIT license
Grafana for Realtime Report generation

Source code: [https://github.com/rumeshmadhusanka/DB-API]

What is the coolest Linux disto you have used?

Rumesh Madhusanka — Sat, 28 Dec 2019 17:54:15 +0000

🐧

How much experience need to be a freelancer? 🙃

Rumesh Madhusanka — Sat, 28 Dec 2019 17:50:08 +0000

What is your opinion on going freelancing?
Some tips for a newbie for freelance 😉

How much testing should cover

Rumesh Madhusanka — Sat, 28 Dec 2019 17:41:03 +0000

What does it means "92% coverage" ?
How is code coverage measured?
How much should testing cover?

Where to use encryption 🤔

Rumesh Madhusanka — Sat, 28 Dec 2019 17:36:01 +0000

I am developing a nodejs rest API and a react frontend which uses the API. I hope to deploy them on azure. Do I need to enable encryption between the front end and the backend?

OR
Is it enough to enable encryption only on the front end?
(I do not plan to expose the API to third parties)

When to use/not use an ORM

Rumesh Madhusanka — Sat, 28 Dec 2019 12:19:17 +0000

ORMs ease out the pain of writing the data access layer by ourselves. But, have you ever come across a situation where an ORM is not suitable to do it's job?

Transport layer protocol for High frequency trading

Rumesh Madhusanka — Sat, 28 Dec 2019 12:06:29 +0000

Some people say TCP is too slow for HFT, and UDP is not reliable. Therefore Fintech companies come up with their own transport layer protocol.
What are would be the characteristics of such protocol?
Are there any non proprietary protocols out there?

Move from one licence to another

Rumesh Madhusanka — Sat, 28 Dec 2019 11:52:27 +0000

Suppose I create an open source software and distribute it under a particular license. After a while, if I want to change the licence to more restrictive open source licence how can I do that?

Is there any particular procedure to follow?