redis学习笔记之安装

Where to find complete Redis documentation?

-------------------------------------------

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

documentation at http://redis.io

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

Fixing build problems with dependencies or cached build options

―--------

Redis has some dependencies which are included into the "deps" directory.

"make" does not rebuild dependencies automatically, even if something in the

source code of dependencies is changes.

#当需要更新redis的时候，使用如下make distclean清除之前的make

When you update the source code with `git pull` or when code inside the

dependencies tree is modified in any other way, make sure to use the following

command in order to really clean everything and rebuild from scratch:

    make distclean

This will clean: jemalloc, lua, hiredis, linenoise.

Also if you force certain build options like 32bit target, no C compiler

optimizations (for debugging purposes), and other similar build time options,

those options are cached indefinitely until you issue a "make distclean"

command.

Fixing problems building 32 bit binaries

---------

If after building Redis with a 32 bit target you need to rebuild it

with a 64 bit target, or the other way around, you need to perform a

"make distclean" in the root directory of the Redis distribution.

In case of build errors when trying to build a 32 bit binary of Redis, try

the following steps:

* Install the packages libc6-dev-i386 (also try g++-multilib).

* Try using the following command line instead of "make 32bit":

    make CFLAGS="-m32 -march=native" LDFLAGS="-m32"

Allocator

---------

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 127.0.0.1 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

    PONG

    redis> set foo bar

    OK

    redis> get foo

    "bar"

    redis> incr mycounter

    (integer) 1

    redis> incr mycounter

    (integer) 2

    redis> 

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

    http://redis.io/commands

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.

# debian与ubuntu可以使用脚本安装

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.sh

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.

Code contributions

---

Note: by contributing code to the Redis project in any form, including sending

a pull request via Github, a code fragment or patch via private email or

public discussion groups, you agree to release your code under the terms

of the BSD license that you can find in the COPYING file included in the Redis

source distribution.

Please see the CONTRIBUTING file in this source distribution for more

information.

Enjoy!