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Memcached

Memcached is a distributed in-memory caching system commonly used to speed up web applications. It temporarily stores frequently requested data in RAM to avoid expensive database queries or API calls.

Key Features of Memcached:

  • Key-Value Store: Data is stored as key-value pairs.

  • In-Memory: Runs entirely in RAM, making it extremely fast.

  • Distributed: Supports multiple servers (clusters) to distribute load.

  • Simple API: Provides basic operations like set, get, and delete.

  • Eviction Policy: Uses LRU (Least Recently Used) to remove old data when memory is full.

Common Use Cases:

  • Caching Database Queries: Reduces load on databases like MySQL or PostgreSQL.

  • Session Management: Stores user sessions in scalable web applications.

  • Temporary Data Storage: Useful for API rate limiting or short-lived data caching.

Memcached vs. Redis:

  • Memcached: Faster for simple key-value caching, scales well horizontally.

  • Redis: Offers more features like persistence, lists, hashes, sets, and pub/sub messaging.

Installation & Usage (Example for Linux):

sudo apt update && sudo apt install memcached
sudo systemctl start memcached

It can be used with PHP or Python via appropriate libraries.

 


Created 6 Days 13 Hours ago
Applications Application Programming Interface - API Backend Cache Database Databases Memcached MySQL PHP PostgreSQL Postgres Principles Programming Languages Programming Python Software Strategies Web Application Web Development

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