What are the key considerations you would take into account when designing a highly available system?

During my final year in college, I worked on a web application project aimed at providing a platform for students to share resources. To ensure high availability, I proposed using a cloud service that offered load balancing and automatic scaling. We designed the application so that if one instance went down, traffic could seamlessly redirect to another instance. Additionally, I suggested regular backups and a monitoring tool to track system performance. This experience taught me the importance of planning for system failures and ensuring that users have continuous access to the platform.

While volunteering for a local non-profit, I was part of a team tasked with managing an event registration system. To ensure high availability during peak registration times, we implemented a simple strategy using multiple forms and a shared database. We also set up alerts for any downtime, allowing us to react quickly. This experience highlighted the significance of user experience during high-traffic periods and the value of having a backup plan in place to handle unexpected issues.

In my internship at an e-commerce company, I was involved in a project to design a highly available system for our online store. We focused on redundancy by implementing multiple servers across different regions. Additionally, we included a failover mechanism that would activate if one server failed, ensuring that customers would not experience downtime. I learned how crucial it is to think about availability not just in terms of technology but also in how it impacts customer satisfaction and business operations.