Install and configure the Redis server in CentOS

Install and configure the Redis server in CentOS

Note:

Operating System: CentOS

1. Install the compilation tool

Yum install wget make gcc-c ++ zlib-devel openssl-devel pcre-devel kernel keyutils patch perl

2. Install the tcl package (the installation of Redis requires tcl Support)

Download: http://downloads.sourceforge.net/tcl/tcl8.6.1-src.tar.gz

Upload tcl8.6.1-src.tar.gz to the/usr/local/src directory.

Cd/usr/local/src # enter the package storage directory

Tar zxvf tcl8.6.1-src.tar.gz # Extract

Cd tcl8.6.1 # enter the installation directory

Cd unix

. /Configure -- prefix =/usr -- without-tzdata -- mandir =/usr/share/man $ ([$ (uname-m) = x86_64] & echo -- enable-64bit) # configure

Make # compile

Sed-e "s @ ^ \ (TCL_SRC_DIR = '\). * @ \ 1/usr/include '@ "-e"/TCL_ B/s @ =' \ (-L \)\?. * Unix @ = '\ 1/usr/lib @ "-I tclConfig. sh

Make install # install

Make install-private-headers

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

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

3. Install Redis

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

Upload redis-stable to the/usr/local/src directory

Cd/usr/local/src

Tar-zxvf redis-stable.tar.gz # Extract

Mv redis-stable/usr/local/redis # Move the file to the installation directory

Cd/usr/local/redis # enter the installation directory

Make # compile

Make install # install

Cd/usr/local/bin # Check whether the following files exist. If not, copy the following files to the/usr/local/bin directory.

Cd/usr/local/redis

Mkdir-p/usr/local/bin

Cp-p redis-server/usr/local/bin

Cp-p redis-benchmark/usr/local/bin

Cp-p redis-cli/usr/local/bin

Cp-p redis-check-dump/usr/local/bin

Cp-p redis-check-aof/usr/local/bin

Ln-s/usr/local/redis. conf/etc/redis. conf # Add a soft connection to the configuration file

Vi/etc/redis. conf # Edit

Daemonize yes # Set the background to start redis

: Wq! # Save and exit

Redis-server/etc/redis. conf # Start the redis Service

Redis-cli shutdown # disable redis

Vi/etc/sysctl. conf # edit and add the following code in the last line

Vm. overcommit_memory = 1

: Wq! # Save and exit

Sysctl-p # Make the settings take effect immediately

4. Set redis startup

Vi/etc/init. d/redis # edit and add the following code

#! /Bin/sh

# Chkconfig: 2345 90 10

# Description: Redis is a persistent key-value database

# Redis Startup script for redis processes

# Processname: redis

Redis_path = "/usr/local/bin/redis-server"

Redis_conf = "/etc/redis. conf"

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

# Source function library.

./Etc/rc. d/init. d/functions

[-X $ redis_path] | exit 0

RETVAL = 0

Prog = "redis"

# Start daemons.

Start (){

If [-e $ redis_pid-! -Z $ redis_pid]; then

Echo $ prog "already running ...."

Exit 1

Fi

Echo-n $ "Starting $ prog"

# Single instance for all caches

$ Redis_path $ redis_conf

RETVAL =$?

[$ RETVAL-eq 0] & {

Touch/var/lock/subsys/$ prog

Success $ "$ prog"

}

Echo

Return $ RETVAL

}

# Stop daemons.

Stop (){

Echo-n $ "Stopping $ prog"

Killproc-d 10 $ redis_path

Echo

[$ RETVAL = 0] & rm-f $ redis_pid/var/lock/subsys/$ prog

RETVAL =$?

Return $ RETVAL

}

# See how we were called.

Case "$1" in

Start)

Start

;;

Stop)

Stop

;;

Status)

Status $ prog

RETVAL =$?

;;

Restart)

Stop

Start

;;

Condrestart)

If test "x 'pidof redis '"! = X; then

Stop

Start

Fi

;;

*)

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

Exit 1

Esac

Exit $ RETVAL

: Wq! # Save and exit

Chmod 755/etc/init. d/redis # Add the script execution permission

Chkconfig -- add redis # add enable startup

Chkconfig -- level 2345 redis on # Set the startup level

Chkconfig -- list redis # view the startup level

Service redis restart # restart redis

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5. Set redis configuration file Parameters

Mkdir-p/usr/local/redis/var # create a directory for storing redis Databases

Vi/etc/redis. conf # Edit

Daemonize yes # Run redis in daemon mode later

Pidfile "/var/run/redis. pid" # run on apsaradb for redis later. The default pid file path is/var/run/redis. pid.

Port 6379 # default port

Bind 127.0.0.1 # All ip addresses of the local machine are bound by default. To ensure security, you can only listen to intranet ip addresses.

Timeout 300 # client timeout settings, in seconds

Loglevel verbose # Set the log level. Four levels are supported: debug, notice, verbose, and warning.

Logfile stdout # log record method. The default value is standard output. logs does not write files and is output to an empty device/deb/null.

Logfile "/usr/local/redis/var/redis. log" # You can specify the log file path

Databases 16 # Number of enabled databases

Save 900 1

Save 300 10

Save 60 10000

Create a local database snapshot in the format of save **

1 write operation in 900 seconds

10 write operations performed within 300 seconds

10000 write operations performed within 60 seconds

Rdbcompression yes # enable lzf compression or set it to no

Dbfilename dump. rdb # Name of the local snapshot Database

Dir "/usr/local/redis/var/" # local snapshot database storage directory

Requirepass 123456 # Set the redis database connection password

Maxclients 10000 # maximum number of client connections at the same time, 0 is unlimited

Maxmemory 1024 MB # set the maximum memory used by redis. The value must be smaller than the physical memory.

Appendonly yes # Enable logging, equivalent to MySQL binlog

Appendfilename "appendonly. aof" # log file name. Note: it is not a directory path.

Appendfsync everysec # executes synchronization every second. Two other parameters always and no are generally set to everysec, which is equivalent to the write method of MySQL transaction logs.

: Wq! # Save and exit

Service redis restart # restart

6. Test the redis Database

Redis-cli-a 123456 # connect to the redis database. Note:-a is followed by the redis Database Password

Set name osyunwei.com # Write Data

Get name # Read data

Exit # exit the apsaradb for redis Console

Redis-benchmark-h 127.0.0.1-p 6379-c 1000-n 100000 #1000 concurrent connections and 100000 requests, test the performance of the redis server with 127.0.0.1 port 6379

7. Connect to the redis database through the php Program # Redis extension must be installed in php first

Redis database IP Address: 192.168.21.128

Port 6379

Password 123456

Test code:

<? Php

$ Redis = new Redis ();

$ Redis-> connect ('192. 168.21.128 ', 192 );

$ Redis-> auth ('123 ');

$ Redis-> select (1 );

$ Ret = $ redis-> set ('www .osyunwei.com ', 'osyunwei ');

Var_dump ($ ret );

$ AllKeys = $ redis-> keys ('*');

Print_r ($ allKeys );

?>

Save the above Code as test. php. The following page is displayed after it is opened.

Bool (true) Array ([0] => www.osyunwei.com)

Now, the installation and configuration of the Redis server in Linux are complete.