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Man Pages


Manual Reference Pages  -  NUTCRACKER (8)

NAME

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

CONTENTS

Synopsis
Description
Options
See Also
Author

SYNOPSIS

nutcracker [options]

DESCRIPTION

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

OPTIONS

-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.

SEE ALSO

memcached(8), redis-server(1)

AUTHOR

nutcracker was written by Twitter, Inc.
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--> NUTCRACKER (8) June 13, 2013

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