NAME

nutcracker - Fast, light-weight proxy for memcached and Redis

SYNOPSIS

nutcracker [options]

nutcracker, also known as twemproxy (pronounced "two-em-proxy"), is a fast and lightweight proxy for the memcached and Redis protocols.

It was primarily built to reduce the connection count on backend caching servers, but it has a number of features, such as:

•: Maintains persistent server connections to backend servers.
•: Enables pipelining of requests and responses.
•: Supports multiple server pools simultaneously.
•: Shard data automatically across multiple servers.
•: Supports multiple hashing modes including consistent hashing and distribution.
•: High-availability by disabling nodes on failures.
•: Observability through stats exposed on stats monitoring port.

-h, --help: Show usage information and exit.
-V, --version: Show version and exit.
-t, --test-conf: Test configuration for syntax errors and exit.
-D, --describe-stats: Print stats description and exit.
-v, --verbose=N: Set logging level to N. (default: 5, min: 0, max: 11)
-o, --output=filename: Set logging file to filename.
-c, --conf-file=filename: Set configuration file to filename.
-s, --stats-port=port: Set stats monitoring port to port. (default: 22222)
-a, --stats-addr=address: Set stats monitoring IP to address. (default: 0.0.0.0)
-i, --stats-interval=interval: Set stats aggregation interval in msec to interval. (default: 30000 msec)
-m, --mbuf-size=size: Set size of mbuf chunk in bytes to size. (default: 16384 bytes)
-d, --daemonize: Run as a daemon.
-p, --pid-file=filename: Set pid file to filename.

nutcracker was written by Twitter, Inc.