Install Redis in a Linux environment and build your own Redis cluster

This document focuses on installing Redis in a Linux environment and building your own Redis cluster

Build Environment: Ubuntun 16.04 + redis-3.0.6

This article is divided into three parts: Redis installation, building Redis cluster

I. Native-mounted REDIS:

1. Download Redis:wget http://download.redis.io/releases/redis-3.0.6.tar.gz

2.redis installation decompression, compilation and Installation: Installation path under root User: ~/softwares file

Decompression: First put the installation package under the ~/softwares file, and then execute: TAR-ZXVF redis-3.0.0.6.tar.gz, after the decompression is complete, there will be a redis-3.0.0.6 folder

Compile: First cd/redis-3.0.0.6, enter this folder, and then run the command: make

Install: Make install prefix=~/softwares/redis-3 (Prefix=~/softwares/redis-3:redis specified installation path)

3. Start Redis-server:

Copy the redis.conf configuration file: In the ~/softwares/redis-3.0.0.6 directory, execute: CP redis.conf ~/softwares/redis-3/bin, the file will be moved over

Modify the configuration file: cd ~/softwares/redis-3/bin directory, the redis.conf inside the "Daemonize No" to "daemonize yes"

Start: In the current directory, execute:./redis-server./redis.conf

To see if the boot was successful: Ps-ef|grep Redis

4. Login REDIS-CLI: To ensure that the current path is under ~/softwares/redis-3/bin:

Login: Execute command./redis-cli-h 127.0.0.1-p 6379

Two. The Redis cluster is built:

Note: There are three nodes in the cluster, one master per node and 6 virtual machines. Build a pseudo-distributed cluster here, using 6 Redis instances to simulate.

1. Install the Ruby environment: REDIS-TRIB.RB is the official Redis-managed Redis cluster tool, integrated in the Redis source src directory (~/softwares/redis-3.0.0.6/).

is based on the Redis-provided cluster command encapsulated into a simple, convenient, practical operation tool. REDIS-TRIB.RB is done by Redis authors in Ruby. So Redis clusters need to install the Ruby environment first

Apt-get Install Ruby

Apt-get Install RubyGems

Gem install Redis-3.0.6.gem When executing this command, it will report one such error: Error:could not find a valid gem ' redis-3.0.0.6 '

(>= 0) in any repository, this command only needs to be executed: wget Https://rubygems.global.ssl.fastly.net/gems/redis-3.2.1.gem,

The Redis-3.0.6.gem installation package is downloaded to the current path and only needs to be executed again: Gem install Redis-3.0.6.gem, the ruby environment is now successfully installed

2. Start building Redis cluster: Create Redis-cluster folder under ~/softwares, create 6 Redis instances in this folder, port number from 7001~7006

2.1 First, create 6 instances, and copy redis-cli, Redis-server, redis.conf three files from ~/softwares/redis-3/bin to each instance, respectively:

REDIS-CLUSTER-01:REDIS-CLI, Redis-server, redis.conf,

REDIS-CLUSTER-02:REDIS-CLI, Redis-server, redis.conf

REDIS-CLUSTER-03:REDIS-CLI, Redis-server, redis.conf

REDIS-CLUSTER-04:REDIS-CLI, Redis-server, redis.conf

REDIS-CLUSTER-05:REDIS-CLI, Redis-server, redis.conf

REDIS-CLUSTER-06:REDIS-CLI, Redis-server, redis.conf

2.2 Then, modify the following redis.conf file parameters in 6 instances, as follows:

redis-cluster-01:1) Open #cluster-enable Note; 2) port modified to: 7001; 3) Daenonize no change to: daenonize Yes

redis-cluster-02:1) Open #cluster-enable Note; 2) port modified to: 7002; 3) Daenonize no change to: daenonize Yes

redis-cluster-03:1) Open #cluster-enable Note; 2) port modified to: 7003; 3) Daenonize no change to: daenonize Yes

redis-cluster-04:1) Open #cluster-enable Note; 2) port modified to: 7004; 3) Daenonize no change to: daenonize Yes

redis-cluster-05:1) Open #cluster-enable Note; 2) port modified to: 7005; 3) Daenonize no change to: daenonize Yes

redis-cluster-06:1) Open #cluster-enable Note; 2) port modified to: 7006; 3) Daenonize no change to: daenonize Yes

2.3 Next, go to the ~/SOFTWARES/REDIS-3.0.6/SRC directory and copy the file redis-trib.rb to the ~/softwares/redis-cluster directory

The following commands are specifically executed: CD ~/SOFTWARES/REDIS-3.0.6/SRC CP redis-trib.rb ~/softwares/redis-cluster

2.4 Down, create a redis-server.sh script file in ~/softwares/redis-cluster, with the following content:

#!/bin/sh

CD./redis-cluster-01/

./redis-server./redis.conf

Cd..


CD./redis-cluster-02/

./redis-server./redis.conf

Cd..


CD./redis-cluster-03/

./redis-server./redis.conf

Cd..


CD./redis-cluster-04/

./redis-server./redis.conf

Cd..


CD./redis-cluster-05/

./redis-server./redis.conf

Cd..


CD./redis-cluster-06/

./redis-server./redis.conf

Cd..

2.5 Change the script permissions, and after executing the script, after viewing the 6 Redis instances are starting normally, the specific execution command is as follows:

This permission: chmod 777 start-server.sh

Executes the script./start-server.sh

To see if it starts normally: Ps-ef|grep Redis

2.6 Create a cluster:

./redis-trib.rb Create--replicas 1 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003

127.0.0.1:7004 127.0.0.1:7005 127.0.0.1:7006

Three. Test whether the cluster is normal:

Log in to the cluster client: redis-cli-h 127.0.0.1-p 7001 (7002, 7003, 7004, 7005, 7006)-C

At this point, a simple Redis cluster has been successfully built.

Install Redis in a Linux environment and build your own Redis cluster