Redis is an in-memory database that persists on disk. The data model is key-value, but many different kind of values are supported: Strings, Lists, Sets, Sorted Sets, Hashes
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Pull request Compare This branch is 3395 commits behind antirez:unstable.
Latest commit e9f0419 May 14, 2012 @antirez antirez Added time.h include in redis-cli.
redis-cli.c uses the time() function to seed the PRNG, but time.h was
not included. This was not noticed since sys/time.h is included and was
enough in most systems (but not correct). With Ubuntu 12.04 GCC
generates a warning that made us aware of the issue.
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src Added time.h include in redis-cli. May 14, 2012
.gitignore file .prerequisites added to gitignore Nov 21, 2011
00-RELEASENOTES Removed handling of deprecated hash-max-zipmap-entries nad hash-map-z… Mar 10, 2012
BUGS Switched issues URL to Github in BUGS Oct 18, 2011
CONTRIBUTING Cleaned up redis root directory and changed links for and gi… Oct 18, 2011
COPYING first commit Mar 22, 2009
Changelog Make log target fixed Jul 1, 2010
INSTALL INSTALL now redirects the user to README Feb 5, 2012
MANIFESTO Redis Manifesto moved from src to root dir Feb 5, 2012
Makefile top level Makefile now just a proxy. Doing make clean inside src now … Jul 13, 2011
README README now makes clear that our support for solaris derived systems i… Apr 21, 2012
TODO a few entries removed from the old TODO list (done) Sep 27, 2011
runtest A few small BSD related fixes. Feb 8, 2012


Where to find complete Redis documentation?

This README is just a fast "quick start" document. You can find more detailed
documentation at

Building Redis

Redis can be compiled and used on Linux, OSX, OpenBSD, NetBSD, FreeBSD.
We support big endian and little endian architectures.

It may compile on Solaris derived systems (for instance SmartOS) but our
support for this platform is "best effort" and Redis is not guaranteed to
work as well as in Linux, OSX, and *BSD there.

It is as simple as:

    % make

You can run a 32 bit Redis binary using:

    % make 32bit

After building Redis is a good idea to test it, using:

    % make test

NOTE: if after building Redis with a 32 bit target you need to rebuild it
      with a 64 bit target you need to perform a "make clean" in the root
      directory of the Redis distribution.


Selecting a non-default memory allocator when building Redis is done by setting
the `MALLOC` environment variable. Redis is compiled and linked against libc
malloc by default, with the exception of jemalloc being the default on Linux
systems. This default was picked because jemalloc has proven to have fewer
fragmentation problems than libc malloc.

To force compiling against libc malloc, use:

    % make MALLOC=libc

To compile against jemalloc on Mac OS X systems, use:

    % make MALLOC=jemalloc

Verbose build

Redis will build with a user friendly colorized output by default.
If you want to see a more verbose output use the following:

    % make V=1

Running Redis

To run Redis with the default configuration just type:

    % cd src
    % ./redis-server
If you want to provide your redis.conf, you have to run it using an additional
parameter (the path of the configuration file):

    % cd src
    % ./redis-server /path/to/redis.conf

It is possible to alter the Redis configuration passing parameters directly
as options using the command line. Examples:

    % ./redis-server --port 9999 --slaveof 6379
    % ./redis-server /etc/redis/6379.conf --loglevel debug

All the options in redis.conf are also supported as options using the command
line, with exactly the same name.

Playing with Redis

You can use redis-cli to play with Redis. Start a redis-server instance,
then in another terminal try the following:

    % cd src
    % ./redis-cli
    redis> ping
    redis> set foo bar
    redis> get foo
    redis> incr mycounter
    (integer) 1
    redis> incr mycounter
    (integer) 2

You can find the list of all the available commands here:

Installing Redis

In order to install Redis binaries into /usr/local/bin just use:

    % make install

You can use "make PREFIX=/some/other/directory install" if you wish to use a
different destination.

Make install will just install binaries in your system, but will not configure
init scripts and configuration files in the appropriate place. This is not
needed if you want just to play a bit with Redis, but if you are installing
it the proper way for a production system, we have a script doing this
for Ubuntu and Debian systems:

    % cd utils
    % ./install_server

The script will ask you a few questions and will setup everything you need
to run Redis properly as a background daemon that will start again on
system reboots.

You'll be able to stop and start Redis using the script named
/etc/init.d/redis_<portnumber>, for instance /etc/init.d/redis_6379.