Grokking the System Design Interview, Volume II
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Hadoop Distributed File System: Introduction

Goal

A busy web service can fill gigabytes of log lines a day, from one server alone. Multiply that by thousands of servers running for years, and the logs no longer fit on one machine. In this chapter, we design the system built to hold data at that scale. It stores files a terabyte and larger. It has to stay scalable, reliable, and highly available while it does that.

What is Hadoop Distributed File System (HDFS)?

HDFS is a distributed file system built to store unstructured data. It stores huge files reliably, and streams them to user applications at high bandwidth.

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Amey Naik

· 5 years ago

"Design a distributed system that can store huge files (terabyte and larger). The system should be scalable, reliable, and highly available.

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