Get To Know the Redis Database: Iterating Over Keys
The ability to iterate cheaply over the Redis key space becomes very important to familiarize oneself with the database contents.
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Redis™ is a very fast and popular open-source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability. Redis™ supports different kinds of abstract data structures, such as strings, lists, maps, sets, sorted sets, bitmaps, streams, and spatial indexes.
Due to its impressive response speeds, Redis™ is being utilized for real-time applications in the gaming, social media, e-commerce, and SaaS industries for popular use cases scenarios including caching, real-time analytics, session management, streaming, leaderboards, chat and messaging. Redis™ is being used by tech giants like Github, Twitter, Pinterest, Snapchat, StackOverflow, and Flickr. Learn more about the top Redis™ use cases by data structure type.
Redis™ is a well-known caching solution that excels at it and has an advanced data structure that provides many powerful ways to save and query data that can’t be achieved with a vanilla key-value cache. It’s fairly simple to set up, use, and learn, and provides persistence that you can opt to set up, so cache warming in the event of a crash is hassle-free. Introduction to Redis Data Structures: Sets
High availability in Redis™ is achieved through master-slave replication. A master Redis server can have multiple Redis servers as slaves, preferably deployed on different nodes across multiple data centers. When the master is unavailable, one of the slaves can be promoted to become the new master and continue to serve data with little or no interruption. Redis Sentinels run as a set of separate processes that in combination monitor Redis master-slave sets and provide automatic failover and reconfiguration. Learn more about High Availability with Redis Sentinels
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The ability to iterate cheaply over the Redis key space becomes very important to familiarize oneself with the database contents.
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