Cap theorem and system design

April 27, 2018

Introduction

It is my task to study system design and I am planning to write 10 blogs related to system design study. One is to study CAP theorem and learn that it is important to consider CAP theorem in system design.

I like to learn first, reading is the first step. I read some funny story about CAP theorem today, so I found one with more technical detail. Here is the link.

CAP theorem 

I still remembered that I got second interview on interviewing.io, and the interviewer told me that I should start to work on system design. Cap theorem is one of topics he told me to work on first.

What is CAP theorem?

Among Consistency, Availability, Partition-tolerance - pick any two.

Here is the answer on quora.com, here is another answer for CAP theorem related to ACID, SQL, NoSQL.

CAP theorem

March 9, 2018

Introduction

It is so exciting to replay my two mock interview of January 2018, and then it is time for me to take the advice from the interviewer in the mock interview. One of interviewers told me to work on system design as well.

In one of my mock interviews this January 2018, the interviewer evaluated me after I worked on two algorithms in 50 minutes, and he told me that I should start to work on the system design. And he gave me some advice, CAP theorem is the first one.

I have to start to practice on system design, since at work I have to make choice for new website, what technology I should choose, how many things I should plan to learn, react/ web pack, and then I also have to learn how to design the system.

I am always too busy. But I find out that no matter how busy I am, I still waste a lot of time on wechat social apps. It is so hard to make real connections to people, face to face, and work on something together and make things happen.

Wechat communication pitfalls

There are so many pitfalls in wechat communication. I have done some research and also shared one of tips to my younger sister.

I constantly check wechat and read other people's post; I also constantly write too much on wechat, chat with my family.

Why I cannot make my system design like wechat app, I constantly look up and think about the design?

Make system design like wechat app

I like to study system topic 5 minutes a time. I like to work on system design at least 10 times a week.