System Design Case Studies

In system design, it is important to analyze real-world examples of system designs to gain insights into the trade-offs involved. By studying these case studies, we can learn from the successes and failures of existing systems and apply that knowledge to our own designs.

One famous case study in system design is the design of the Twitter architecture. Twitter started as a simple microblogging platform but quickly grew into a global phenomenon. The technical challenges they faced in scaling their platform to handle millions of users and tweets per second are fascinating.

The key considerations in the design of Twitter's architecture include:

• Scalability: Twitter needed to handle a massive amount of traffic and scale their infrastructure accordingly. They employed techniques such as sharding the database, using distributed systems, and caching to achieve scalability.
• Reliability: Twitter aimed to provide a reliable service despite the high volume of user interactions. They implemented redundancy and failover mechanisms to ensure continuous availability.
• Real-time data processing: Twitter needed to process and deliver tweets in real-time. They used technologies like Apache Kafka for real-time data streaming and processing.

Here's a Java code snippet that demonstrates the FizzBuzz problem:

1class Main {
2  public static void main(String[] args) {
3    for(int i = 1; i <= 100; i++) {
4      if(i % 3 == 0 && i % 5 == 0) {
5          System.out.println("FizzBuzz");
6      } else if(i % 3 == 0) {
7          System.out.println("Fizz");
8      } else if(i % 5 == 0) {
9          System.out.println("Buzz");
10      } else {
11          System.out.println(i);
12      }
13    }    
14  }
15}

In this code, we use a for loop to iterate from 1 to 100. For each number, we check if it is divisible by 3 and 5, by 3 only, by 5 only, or neither, and print the corresponding output.

By studying system design case studies, we can gain valuable insights into the design decisions and trade-offs made by experienced engineers. This knowledge can help us make informed decisions when designing our own systems.

Would you like to practice more system design case studies?

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class Main {

  public static void main(String[] args) {

    // replace with your Java logic here

    for(int i = 1; i <= 100; i++) {

      if(i % 3 == 0 && i % 5 == 0) {

          System.out.println("FizzBuzz");

      } else if(i % 3 == 0) {

          System.out.println("Fizz");

      } else if(i % 5 == 0) {

          System.out.println("Buzz");

      } else {

          System.out.println(i);

      }

    }    

  }

}