Key-value stores
In any sophisticated software system, data storage and retrieval is a fundamental concern. Key-value stores provide a simple, efficient, and highly scalable solution to store data. This chapter delves into the intricacies of designing a robust key-value store while emphasizing key concepts such as scalability, replication, versioning, configurability, fault tolerance, and failure detection.
This chapter will equip you with the knowledge to design and manage a resilient key-value store. We’ll embark on this journey by initially defining the requirements of a key-value store and designing its API. Then, we’ll explore techniques to ensure scalability, using consistent hashing and strategies to replicate partitioned data. Furthermore, we’ll uncover how to manage versioning and resolve conflicts that arise due to concurrent modifications. Lastly, we’ll dive into how to make the key-value store fault-tolerant and devise mechanisms for timely...
