Environment to prepare

• Six Redis servers are required. Build a pseudo cluster.
• Six instances of Redis are required.
• Need to run on different ports 6379-6384

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Ruby language runtime environment

We need to use Ruby scripts for cluster building

• Ruby packaging system RubyGems

  • RubyGems is a Ruby packaging system for packaging Ruby components

• Gem is a Ruby driver for Redis

• Redis-trib.rb tool for creating Redis clusters

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Redis installation

Install 6 Redis

Set up six pseudo clusters in Windows

In the root directory Redis/of each Redis installation folder, create the startup script start.bat file. The content is as follows: Notice The port number matches the Redis configured port number

title redis-6379
redis-server.exe redis.windows.conf
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Redis configuration

1. Modify redis.windows.conf with port numbers corresponding to:6379, 6380, 6381, 6382, 6383, 6384.
2. Open cluster – enabled:cluster-enabled yes
3. Specify cluster profile:cluster-config-file nodes-6379.conf, cluster-config-file nodes-6379.conf is the configuration information of the node. In this command, nodes-port. conf is used. The file is generated in the directory after the service starts.
4. Specify timeout:cluster-node-timeout 15000
5. Open persistent:appendonly yes

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Install Ruby

Rubyinstaller-2.6.3-1-x64.exe can be installed in a simple way

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Installing the Ruby Driver

1. Unpack the Ruby driver (Rubygems-2.7.7), go to the root directory, and execute

ruby setup.rb
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2. Go to the Redis directory and run gem install Redis

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Execute the cluster build script

1. Start 6 Redis
2. Copy redis-trib.rb to redis directory (6379 redis directory)
3. Execute the build script at 6379 root:

Redis-trib.rb create --replicas 1 127.0.0.1:6379 127.0.0.1:6380 127.0.0.1:6381 127.0.0.1:6382 127.0.0.1:6383 127.0.0.1:6384Copy the code

4. Can I set the above configuration? (type ‘yes’ to accept): Please confirm and enter yes. The results are as follows:

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Test Cluster command

• Start client: redis-cli -c -h 127.0.0.1 -p 6379, can talk to any node port
• View the entire cluster: cluster info
• Check the current Redis: Info Replication
• View the slot number: Cluster Nodes

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Cluster code testing

Note: Import the jar packages required by Jedis before testing the code

@Test
public void testCluster(a) throws IOException, InterruptedException {
    Set<HostAndPort> nodes = new HashSet<>();
    nodes.add(new HostAndPort("127.0.0.1".6379));
    nodes.add(new HostAndPort("127.0.0.1".6380));
    nodes.add(new HostAndPort("127.0.0.1".6381));
    nodes.add(new HostAndPort("127.0.0.1".6382));
    nodes.add(new HostAndPort("127.0.0.1".6383));
    nodes.add(new HostAndPort("127.0.0.1".6384));
    JedisCluster cluster = new JedisCluster(nodes);
    try {
        String res = cluster.get("name");
        System.out.println(res);
    	//cluster.quit();
    } catch (Exception e) {
    	e.printStackTrace();
    	//cluster.quit();}}Copy the code

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