redis集群搭建 Installing Redis Cluster

简介:

Redis的集群模式实现了数据的分布式存储,每个节点存储不同的数据,实现数据动态扩容。

优点:无中心节点架构,数据按照slot分布在多个节点上

缺点:不支持多数据库

 

1、安装包准备

  1、redis-4.0.1.tar.gz  redis源文件

     下载地址:https://download.redis.io/releases/redis-4.0.1.tar.gz

  2、ruby-2.5.9.tar.gz  ruby安装包

2、安装机器准备

  三台机器:192.168.43.120  192.168.43.130  192.168.43.140   3主3从,每台机器两个节点

 

3、目录创建和redis编译

  a、在120机器上创建目录:/opt/soft

  b、进入soft目录,执行 wget https://download.redis.io/releases/redis-4.0.1.tar.gz 下载redis源文件

  c、执行 tar -zxvf redis-4.0.1.tar.gz 解压源文件包,解压后得到redis-4.0.1目录

  d、cd redis-4.0.1 目录,编译源文件,执行命令:make

  如果出现以下错误:

  

 

  说明没有gcc,运行 yum install  gcc

  再执行make命令,如果出现以下错误:

  

  则执行命令:make MALLOC=libc

4、节点创建

  每台机器配置两个节点 7000和7001

  创建目录  mkdir cluster

  

   进入cluster目录,分别创建7000和7001目录

  

   复制配置文件,把redis.conf分别复制到7000和7001下

  

    增加配置:

  分别在7000和7001下的redis.conf添加如下配置

  

  

bind 192.168.43.140
port 7000
#masterauth 123456
#requirepass 123456 
cluster-enabled yes
cluster-config-file nodes-7000.conf
cluster-node-timeout 5000
appendonly yes

    保存退出

5、启动节点

  执行命令分别启动7000和7001节点:

  ./src/redis-server /opt/soft/redis-4.0.1/cluster/7000/redis.conf &

  ./src/redis-server /opt/soft/redis-4.0.1/cluster/7001/redis.conf &

  启动成功如下:

  

       其它两台机器一样操作

 6、创建集群(只需要在一台机器上执行)

  a、安装ruby

  tar -zxvf ruby-2.5.9.tar.gz

  cd ruby-2.5.9/

  ./configure --prefix=/usr/local/ruby

  make && make install

  查看安装后的版本

  /usr/local/ruby/bin/ruby -v

  设置环境变量

  vi /etc/profile

  export PATH=$PATH:/usr/local/ruby/bin:

  source /etc/profile

 

    b、安装gem

  运行命令gem install redis

  

 

    出现如下错误说明确实zlib库

  yum install zlib-devel

  集成zlib库到ruby环境

  cd /opt/soft/ruby-2.5.9/ext/zlib/

  ruby extconf.rb

  

    操作之前修改Makefile里的文件

  vi Makefile

  在文件最后找到:zlib.o: $(top_srcdir)/include/ruby.h   修改为  zlib.o: ../../include/ruby.h  保存退出

  执行命令 make && make install

  执行命令gem install redis 如果报一下错误

  

 

    安装 openssl-devel

  yum install openssl-devel

  集成openssl库到ruby

  cd /opt/soft/ruby-2.5.9/ext/openssl/

  ruby extconf.rb

  修改Makefile 里面的    

  ossl.o: $(top_srcdir)/include/ruby.h  修改为 ossl.o: ../../include/ruby.h  

  ossl_asn1.o: $(top_srcdir)/include/ruby.h 修改为 ossl_asn1.o: ../../include/ruby.h

  ossl_bio.o: $(top_srcdir)/include/ruby.h   

  ossl_bn.o: $(top_srcdir)/include/ruby.h

  ossl_cipher.o: $(top_srcdir)/include/ruby.h

  等等全部修改

  保存退出

  执行命令 make && make install

  最后 运行命令gem install redis 

  如果卡死 执行  gem sources --add https://gems.ruby-china.com/ --remove https://rubygems.org/

  

 

 

  c、创建集群

  ./redis-trib.rb create --replicas 1 192.168.43.120:7000 192.168.43.120:7001 192.168.43.130:7000  192.168.43.130:7001 192.168.43.140:7000 192.168.43.140:7001

       

      (2023.10.25修改)

       如果redis为6.2.7版本,创建集群方式为:

       ./redis-cli --cluster create 172.17.46.133:7000 172.17.46.133:7001 172.17.46.134:7000  172.17.46.134:7001 172.17.46.135:7000 172.17.46.135:7001

   

[root@centos3 src]# ./redis-trib.rb create --replicas 1 192.168.43.120:7000 192.168.43.120:7001 192.168.43.130:7000  192.168.43.130:7001 192.168.43.140:7000 192.168.43.140:7001
>>> Creating cluster
>>> Performing hash slots allocation on 6 nodes...
Using 3 masters:
192.168.43.120:7000
192.168.43.130:7000
192.168.43.140:7000
Adding replica 192.168.43.130:7001 to 192.168.43.120:7000
Adding replica 192.168.43.120:7001 to 192.168.43.130:7000
Adding replica 192.168.43.140:7001 to 192.168.43.140:7000
M: 5b341137f0fa22573b34a14206b3b4c625986f42 192.168.43.120:7000
   slots:0-5460 (5461 slots) master
S: 5e162d8d5dad7e6e4fa9ecefac9b3d27e8659e33 192.168.43.120:7001
   replicates 6cbcdc0f773f5c1d895aeb33b29da449890e3064
M: 6cbcdc0f773f5c1d895aeb33b29da449890e3064 192.168.43.130:7000
   slots:5461-10922 (5462 slots) master
S: 6ac36c5449c77caca707b67c8d01dcc9efe3f0fa 192.168.43.130:7001
   replicates 5b341137f0fa22573b34a14206b3b4c625986f42
M: f8c1c69d67ebecb3e6092e901fe1ca66bd097381 192.168.43.140:7000
   slots:10923-16383 (5461 slots) master
S: 4e632fd278a48016c62255746f5128c121a71dfe 192.168.43.140:7001
   replicates f8c1c69d67ebecb3e6092e901fe1ca66bd097381
Can I set the above configuration? (type 'yes' to accept): yes
>>> Nodes configuration updated
>>> Assign a different config epoch to each node
>>> Sending CLUSTER MEET messages to join the cluster
Waiting for the cluster to join...
>>> Performing Cluster Check (using node 192.168.43.120:7000)
M: 5b341137f0fa22573b34a14206b3b4c625986f42 192.168.43.120:7000
   slots:0-5460 (5461 slots) master
   1 additional replica(s)
S: 6ac36c5449c77caca707b67c8d01dcc9efe3f0fa 192.168.43.130:7001
   slots: (0 slots) slave
   replicates 5b341137f0fa22573b34a14206b3b4c625986f42
M: 6cbcdc0f773f5c1d895aeb33b29da449890e3064 192.168.43.130:7000
   slots:5461-10922 (5462 slots) master
   1 additional replica(s)
M: f8c1c69d67ebecb3e6092e901fe1ca66bd097381 192.168.43.140:7000
   slots:10923-16383 (5461 slots) master
   1 additional replica(s)
S: 4e632fd278a48016c62255746f5128c121a71dfe 192.168.43.140:7001
   slots: (0 slots) slave
   replicates f8c1c69d67ebecb3e6092e901fe1ca66bd097381
S: 5e162d8d5dad7e6e4fa9ecefac9b3d27e8659e33 192.168.43.120:7001
   slots: (0 slots) slave
   replicates 6cbcdc0f773f5c1d895aeb33b29da449890e3064
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.

  

  最后客户端测试

  

 

 

  

 

  

  

 

posted @ 2022-04-11 16:12  青春岁月,无怨无悔  阅读(104)  评论(0编辑  收藏  举报