redis集群搭建

1.复制配置文件到集群中 以此类推

 cp /usr/local/redis/redis-6.2.1/redis.conf /usr/local/rediscluster/7001/7001.conf

 

2. 修改配置文件 以此类推

 

3.启动redis

 

4. 

./redis-trib.rb create --replicas 1 192.168.96.128:7001 192.168.96.128:7002 192.168.96.128:7003 192.168.96.128:7004 192.168.96.128:7005 192.168.96.128:7006

 

 

 

常见问题 

1.wget不是内部命令 2、yum安装

yum -y install wget

2.报错:  redis requires Ruby version >= 2.2.2的报错，查了资料发现是Centos默认支持 ruby 到 2.0.0，可 gem 安装redis需要最低是2.2.2 

查找相关的解决方案

执行的命令:

        ①  卸载当前ruby（当前使用centos系统）

                yum remove ruby

        ②  下载ruby稳定版

                cd /usr/local/rvm/rubies

                wget https://cache.ruby-lang.org/pub/ruby/2.5/ruby-2.5.1.tar.gz

        ③  安装ruby

                tar zxvf ruby-2.5.1.tar.gz

                cd ruby-2.5.1

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

                make && make install

        ④  查看安装后的版本

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

        ⑤  镜像加速

此时使用gem install redis不会报错了，但是你会发现很慢，为了更快速的安装，这里使用国内的镜像(https://gems.ruby-china.com/)    执行若报错，https改为http

                gem sources --add https://gems.ruby-china.com/ --remove https://rubygems.org/
                gem sources -l

出现异常：/usr/bin/gem: No such file or directory

解决方案：ln -s /usr/local/rvm/bin/gem /usr/bin/gem

        ⑥  安装

                gem install redis

6. 再次执行创建集群的命令

    ./redis-trib.rb create --replicas 1 10.0.192.64:7001 10.0.192.64:7002 10.0.192.64:7003 10.0.192.64:7004  10.0.192.64:7005 10.0.192.64:7006

[root@hart]/usr/local/redis-cluster/bin#  ./redis-trib.rb create --replicas 1 10.0.192.64:7001 10.0.192.64:7002 10.0.192.64:7003 10.0.192.64:7004  10.0.192.64:7005 10.0.192.64:7006
.1.11:7004  192.168.1.11:7005 192.168.1.11:7006
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require': no such file to load -- redis (LoadError)
    from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
    from ./redis-trib.rb:25

解决办法：1.下载 并上传redis-3.0.0.gem

                  2.执行 gem install redis-3.0.0.gem

 

 

参考博客:

https://blog.csdn.net/mst1010/article/details/80984699

https://blog.csdn.net/mst1010/article/details/80984699