Azure Cosmos DB vs Redis: What are the differences?
What is Azure Cosmos DB? A fully-managed, globally distributed NoSQL database service. Azure DocumentDB is a fully managed NoSQL database service built for fast and predictable performance, high availability, elastic scaling, global distribution, and ease of development.
What is Redis? An in-memory database that persists on disk. Redis is an open source, BSD licensed, advanced key-value store. It is often referred to as a data structure server since keys can contain strings, hashes, lists, sets and sorted sets.
Azure Cosmos DB belongs to "NoSQL Database as a Service" category of the tech stack, while Redis can be primarily classified under "In-Memory Databases".
"Best-of-breed NoSQL features" is the top reason why over 13 developers like Azure Cosmos DB, while over 842 developers mention "Performance" as the leading cause for choosing Redis.
Redis is an open source tool with 37.1K GitHub stars and 14.3K GitHub forks. Here's a link to Redis's open source repository on GitHub.
reddit, Instacart, and Slack are some of the popular companies that use Redis, whereas Azure Cosmos DB is used by Microsoft, Rumble, and Property With Potential. Redis has a broader approval, being mentioned in 3239 company stacks & 1732 developers stacks; compared to Azure Cosmos DB, which is listed in 24 company stacks and 23 developer stacks.
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