Mcrouter is a memcached protocol router for scaling memcached (http://memcached.org/) deployments. It's a core component of cache infrastructure at Facebook and Instagram where mcrouter handles almost 5 billion requests per second at peak.
Mcrouter is developed and maintained by Facebook.
See https://github.com/facebook/mcrouter/wiki to get started.
See https://github.com/facebook/mcrouter/wiki/mcrouter-installation for more detailed installation instructions.
Mcrouter depends on folly (https://github.com/facebook/folly) and FBThrift (https://github.com/facebook/fbthrift).
The installation is a standard autotools flow:
$ autoreconf --install
$ ./configure
$ make
$ sudo make install
$ mcrouter --help
Assuming you have a memcached instance on the local host running on port 5001, the simplest mcrouter setup is:
$ mcrouter \
--config-str='{"pools":{"A":{"servers":["127.0.0.1:5001"]}},
"route":"PoolRoute|A"}' \
-p 5000
$ echo -ne "get key\r\n" | nc 0 5000
(nc is the GNU Netcat, http://netcat.sourceforge.net/)
- Memcached ASCII protocol
- Connection pooling
- Multiple hashing schemes
- Prefix routing
- Replicated pools
- Production traffic shadowing
- Online reconfiguration
- Flexible routing
- Destination health monitoring/automatic failover
- Cold cache warm up
- Broadcast operations
- Reliable delete stream
- Multi-cluster support
- Rich stats and debug commands
- Quality of service
- Large values
- Multi-level caches
- IPv6 support
- SSL support
Documentation: https://github.com/facebook/mcrouter/wiki Engineering discussions and support: https://www.facebook.com/groups/mcrouter
Copyright (c) 2014, Facebook, Inc. All rights reserved.
Licensed under a BSD license: https://github.com/facebook/mcrouter/blob/master/LICENSE
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