Redis of non relational database [detailed setup of redis cluster]

Redis colony

1 redis-cluster Architecture diagram

2. redis Cluster building

2.1 install ruby

Cluster management tool （redis-trib.rb） It's using ruby Written in scripting language .

First step ： install ruby

• [[email protected] bin]# yum install ruby
• [[email protected] bin]# yum install rubygems

The second step ： Upload ruby and redis Interface file to linux System

The third step ： Enter file directory , install ruby and redis Interface

• Because it is uploaded to the main directory of the file , So switch directories before installing

• install ：[[email protected] ~]# gem install redis-3.0.0.gem

Step four ： take redis-3.0.0 It's a bag src Copy the following files in the directory to redis0707/redis-cluster/, And check whether the copy is successful

2.2 Set up the cluster

Write it at the front ：

Set up the cluster , It's just ip and port The problem of . We want to build a cluster on a host for testing , Just modify the port , Make each redis The port number of the server is different .

Building a cluster requires at least 3 Console host , If each host is configured with another slave , At least 6 Taiwan machine .

The port design is as follows ：7001-7006

• First step ： Make a copy of 7001 machine

• The second step ： If persistent files exist , Delete

• The third step ： Set cluster parameters and modify ports :
  1. vim redis.conf
  2. Input /cluster Retrieve cluster parameters , hold no Change it to yes, remember ： Put the notes # Get rid of
  3. After modifying the cluster parameters , Input /port Search port , Then change the port to 7001, And save exit .

• Step four ： reproduce 7002-7006 machine

• Step five ： Get into 7002-7006 The machines have their own redis.conf file , Modify the port

• Step six ： start-up 7001-7006 These six machines

• Step seven ： modify startall.sh File permissions reason ： At present startall.sh Unenforceable
  • chmod u+x startall.sh

• Step eight ： start-up

• Step nine ： Create clusters
  • ip Address of virtual machine ip ,
  • 1 It is to create a slave for each host , namely 3 Host computer 3 Slaves

3. Connect clusters

Enter one at random redis The server , Open the client .

• ./redis-cli -h 192.168.188.127 -p 7001 -c

4. Detection cluster

It can be seen that , The data is based on hash Calculation exists 7003 Number redis Server .

5. Shut down the cluster server

• Create a close script , Convenient for unified shutdown and startup in the future .