Mcrouter

Mcrouter is an open-source memcached protocol router developed by Facebook to scale and manage large memcached deployments efficiently. It acts as an intermediary between clients and memcached servers, handling routing, load balancing, and failover, thereby abstracting the complexity of managing numerous cache servers. Mcrouter is designed to be a drop-in replacement, requiring minimal or no changes to existing client configurations. It supports the standard memcached ASCII protocol, making it compatible with existing memcached clients. At Facebook, Mcrouter handles a substantial portion of cache traffic, demonstrating its capability to operate at scale.

Features

Supports the standard memcached ASCII protocol, ensuring compatibility with existing clients
Implements connection pooling to reduce the number of open connections to memcached servers
Offers multiple hashing schemes, including consistent hashing, for efficient key distribution
Provides prefix-based routing to direct specific key patterns to designated server pools
Supports replicated pools for data redundancy and high availability
Enables production traffic shadowing for testing new configurations without impacting live traffic
Includes health checks and automatic failover mechanisms to maintain system reliability

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License

MIT License

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Additional Project Details

Programming Language

C++

Related Categories

C++ Software Development Software

Registered

2025-04-18

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