Explain sequential I/O principle in Kafka.

Kafka uses sequential I/O as a primary design choice to achieve its high throughput and performance. By treating data as an append-only log, Kafka can leverage the optimal performance characteristics of both traditional hard disks (HDDs) and Solid State Drives (SSDs), avoiding the significant latency penalties associated with random disk access.

• High Throughput: Sequential writes enable Kafka to handle massive volumes of data (millions of messages per second) with very low latency.
• Cost-Effectiveness: It allows Kafka to use cheaper, high-capacity HDDs effectively, rather than requiring expensive, high-performance storage systems like specialized random-access databases might.
• Simplified Caching Logic: By offloading much of the data management to the OS page cache, Kafka avoids complex in-application caching logic, which can lead to high garbage collection overhead in the Java Virtual Machine (JVM).

Invest now in Acorns!!! 🚀
Join Acorns and get your $5 bonus!

Acorns is a micro-investing app that automatically invests your "spare change" from daily purchases into diversified, expert-built portfolios of ETFs. It is designed for beginners, allowing you to start investing with as little as $5. The service automates saving and investing. Disclosure: I may receive a referral bonus.

Invest now!!! Get Free equity stock (US, UK only)!

Use Robinhood app to invest in stocks. It is safe and secure. Use the Referral link to claim your free stock when you sign up!.

The Robinhood app makes it easy to trade stocks, crypto and more.

Webull! Receive free stock by signing up using the link: Webull signup.