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This article focuses on "redis installation, configuration, use and redis php extension installation steps", interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn the steps of redis installation, configuration, use and redis php extension installation.

Redis is an in-memory database that supports richer value types than memcache. Sina Weibo uses redis for caching.

Source code installation of redis

The copy code is as follows:

Wget http://download.redis.io/redis-stable.tar.gz

Tar-zxvf redis-stable.tar.gz

Cd redis-stable

Make

Make test

Make install

The following error may be reported when 1.make:

The copy code is as follows:

Zmalloc.o: In function `zmalloc_used_memory':

/ root/redis-stable/src/zmalloc.c:223: undefined reference to `_ _ sync_add_and_fetch_4'

Collect2: ld returned 1 exit status

Make [1]: * * [redis-server] Error 1

Make [1]: Leaving directory `/ root/redis-stable/src'

Make: * * [all] Error 2

Solution:

Edit OPT in src/.make-settings and change it to OPT=-O2-march=i686.

2.make test error:

The copy code is as follows:

You need tcl 8.5 or newer in order to run the Redis test

Make: * * [test] Error 1

Workaround install tcl

The copy code is as follows:

Wget http://downloads.sourceforge.net/tcl/tcl8.6.0-src.tar.gz

Cd tcl8.6.0/

Cd unix & &

. / configure-- prefix=/usr\

-- mandir=/usr/share/man\

-- without-tzdata\

$([$(uname-m) = x86 uname 64] & & echo-- enable-64bit) & &

Make & &

Sed-e "s @ ^\ (TCL_SRC_DIR='\). * @\ 1Universe usrUniverse @"\ "

-e "/ TCL_B/s@='\ (- L\)\?. * unix@='\ 1Universe usrUniverse lib @"\

-I tclConfig.sh

Make install & &

Make install-private-headers & &

Ln-v-sf tclsh8.6 / usr/bin/tclsh & &

Chmod-v 755 / usr/lib/libtcl8.6.so

Introduction to redis command

Redis consists of four executable files: redis-benchmark, redis-cli, redis-server, and redis-stat, plus a redis.conf to form the final available package for the entire redis. Their functions are as follows:

Daemon launcher for redis-server:Redis server

Redis-cli:Redis command line operation tool. Of course, you can also use telnet according to its plain text protocol.

Redis-benchmark:Redis performance testing tool to test the read and write performance of Redis on your system and your configuration

Redis-stat:Redis status detection tool, which can detect the current state parameters and delay status of Redis

Now you can start redis. Redis has only one startup parameter, which is its configuration file path.

Start redis

Copy the redis.conf in the source package to / etc

The copy code is as follows:

# cd redis-stable

# cp redis.conf / etc/redis.conf

Edit / etc/redis.conf, change daemaon no to daemaon yes, and start the process as a daemon.

The copy code is as follows:

# redis-server / etc/redis.conf

Close redis

The copy code is as follows:

# redis-cli shutdown / / close all

Turn off redis on a port

# redis-cli-p 6397 shutdown / / disable redis on port 6397

Note: after closing, the cached data will be automatically dump to the hard disk. The address of the hard disk can be found in dbfilename dump.rdb in redis.conf.

Redis configuration

Note that the daemonize parameter of the copied redis.conf file is no by default, so redis will not run in the background, so to test, we need to open a new terminal. Change to yes to run redis in the background. In addition, the configuration file specifies the address of the pid file, log file and data file. If you need to modify it first, the default log information is directed to stdout.

The following is the meaning of the main configuration parameters of redis.conf:

The copy code is as follows:

Daemonize: whether to run in background daemon mode

Pidfile:pid file location

Port: the port number on which to listen

Timeout: request timeout

Loglevel:log information level

Logfile:log file location

Databases: number of databases opened

Save * *: how often the snapshot is saved. The first * indicates how long it takes, and the third * indicates how many writes are performed. The snapshot is automatically saved when a certain number of writes are performed within a certain period of time. Multiple conditions can be set.

Rdbcompression: whether to use compression

Dbfilename: data snapshot file name (file name only, not directory)

Dir: the directory where the data snapshot is saved (this is the directory)

Appendonly: whether or not to enable appendonlylog, each write operation will record a log, which will improve the anti-risk ability of the data, but affect the efficiency.

How to synchronize appendfsync:appendonlylog to disk (three options: forcing fsync to be called every time you write, enabling fsync once per second, and not calling fsync to wait for the system to synchronize itself)

At this point, you can open a terminal for testing. The default listening port in the configuration file is 6379.

Redis booting starts automatically

Before using this script to manage, you need to configure the following kernel parameters, otherwise the Redis script will report an error when restarting or stopping redis, and cannot automatically synchronize data to disk before stopping the service:

The copy code is as follows:

# vi / etc/sysctl.conf

Vm.overcommit_memory = 1

Then the application takes effect:

The copy code is as follows:

# sysctl-p

Create a redis startup script:

The copy code is as follows:

# vim / etc/init.d/redis

#! / bin/bash

#

# Init file for redis

#

# chkconfig:-80 12

# description: redis daemon

#

# processname: redis

# config: / etc/redis.conf

# pidfile: / var/run/redis.pid

Source / etc/init.d/functions

# BIN= "/ usr/local/bin"

BIN= "/ usr/local/bin"

CONFIG= "/ etc/redis.conf"

PIDFILE= "/ var/run/redis.pid"

# Read configuration

[- r "$SYSCONFIG"] & & source "$SYSCONFIG"

RETVAL=0

Prog= "redis-server"

Desc= "Redis Server"

Start () {

If [- e $PIDFILE]; then

Echo "$desc already running...."

Exit 1

Fi

Echo-n $"Starting $desc:"

Daemon $BIN/$prog $CONFIG

RETVAL=$?

Echo

[$RETVAL-eq 0] & & touch / var/lock/subsys/$prog

Return $RETVAL

}

Stop () {

Echo-n $"Stop $desc:"

Killproc $prog

RETVAL=$?

Echo

[$RETVAL-eq 0] & & rm-f / var/lock/subsys/$prog $PIDFILE

Return $RETVAL

}

Restart () {

Stop

Start

}

Case "$1" in

Start)

Start

Stop)

Stop

Restart)

Restart

Condrestart)

[- e / var/lock/subsys/$prog] & & restart

RETVAL=$?

Status)

Status $prog

RETVAL=$?

*)

Echo $"Usage: $0 {start | stop | restart | condrestart | status}"

RETVAL=1

Esac

Exit $RETVAL

Then add services and boot up:

The copy code is as follows:

# chmod 755 / etc/init.d/redis

# chkconfig-add redis

# chkconfig-- level 345 redis on

# chkconfig-list redis

Redis php extension installation

The copy code is as follows:

Wget https://github.com/nicolasff/phpredis/zipball/master-O php-redis.zip

Unzip php-redis.zip

Cd nicolasff-phpredis-2d0f29b/

/ usr/local/php/bin/phpize

. / configure-- with-php-config=/usr/local/php/bin/php-config

Make & & make install

After completion, redis.so is installed into the

The copy code is as follows:

/ usr/local/php/lib/php/extensions/no-debug-non-zts-20100525/

Vi / usr/local/php/lib/php.ini

Add

The copy code is as follows:

Extension=redis.so

Just restart php-fpm.

You may encounter it during configure, which can be solved by adding the-- with-php-config parameter.

The copy code is as follows:

Configure: error: Cannot find php-config. Please use-with-php-config=PATH

. / configure-- with-php-config=/usr/local/php/bin/php-config

At this point, I believe you have a deeper understanding of the "redis installation, configuration, use and redis php extension installation steps". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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