Man page - nutcracker(8)

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Package: nutcracker
apt-get install nutcracker

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

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.