Web Developer

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Redis

Redis is a powerful tool for data storage and caching in web development: 
 
 
  • What it is
    Redis is an open-source, in-memory, NoSQL key/value store that’s known for its speed. It stores data in memory, rather than on a disk or solid-state drive (SSD). 
     
     
  • How it’s used
    Redis can be used as a cache, message broker, or database. It’s a good choice for applications that require real-time data access. 
     
     
  • Features
    Redis offers: 
     
     
    • Built-in replication capabilities 
       
       
    • Data structures like strings, hashes, lists, sets, sorted sets, bitmaps, hyperloglogs, geospatial indexes, and streams 
       
       
    • Built-in features like Lua scripting, LRU eviction, transactions, and different levels of on-disk persistence 
       
       
  • Why it’s fast
    Redis is fast because it stores and serves data from memory. Reading from RAM is faster than from a hard drive. Redis also uses a single thread for network requests, which helps it efficiently juggle many requests. 
     
     
  • Schema
    The schema specifies the fields, their types, whether they should be indexed or stored, and other configuration options. Properly configuring the schema can optimize search performance and control storage requirements.