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                # Redis集群的搭建 準備6臺redis服務器,具體要求如下: |ip地址 | 端口 | etho | 日志文件名 | ---|---|---|--- 192.168.166.207 | 6380 | 都可以接收連接請求 | redis51.log 192.168.166.207 | 7701 | 都可以接收連接請求 | redis52.log 192.168.166.208 | 6380 | 都可以接收連接請求 | redis53.log 192.168.166.208 | 7701 | 都可以接收連接請求 | redis54.log 192.168.166.209 | 6380 | 都可以接收連接請求 | redis55.log 192.168.166.209 | 7701 | 都可以接收連接請求 | redis56.log 注意:##以上為3臺主redis,剩下的3臺分別在主redis上做多實例。開放端口。 # 環境準備 **# 1 在6臺redis服務器上運行服務,按照如下要求修改配置文件后,重啟redis服務。** ``` ]#vim /etc/redis/6380.conf bind 192.168.166.207 #只指定物理接口ip地址 port 6380 #不允許相同 daemonize yes cluster-enabled yes pidfile /var/run/redis_51.pid #不允許相同 pidfile nodes-6380.conf #不允許相同 cluster-node-timeout 5000 #集群節點之間通信超時時間單位秒 :wq ``` **# 2.服務啟動** ``` 1>.停止服務 ]# redis-cli -h 192.168.166.207 -p 6380 [ -a 密碼 ] shutdown 2>.啟動服務 ]# /etc/init.d/redis_6380 start 3>.連接服務 [root@host56 ~]# redis-cli -h 192.168.4.56 -p 6056 ``` **# 3.安裝解釋ruby代碼的軟件包** ``` [root@host51 ~]# yum -y install ruby rubygems [root@host51 ~]# rpm -q rubygems ruby rubygems-2.0.14.1-30.el7.noarch ruby-2.0.0.648-30.el7.x86_64 ``` **# 4.安裝ruby連接redis 接口程序 gem** ``` [root@host51 redis-cluster]# which gem /usr/bin/gem [root@host51 redis-cluster]# gem install redis 注意:在這里版本很重要,一定要查看自己gem和ruby的版本 ,否則集群無法創建成功。 補充:對于以上的升級方案: 1>.首先安裝rvm安裝會使用的包: #yum install gcc-c++ patch readline readline-devel zlib zlib-devel \ libyaml-devel libffi-devel openssl-devel make \ bzip2 autoconf automake libtool bison iconv-devel sqlite-devel 2>.之后便是安裝rvm: curl -sSL https://rvm.io/mpapis.asc | gpg --import - curl -L get.rvm.io | bash -s stable 3>.配置rvm的運行環境: source /etc/profile.d/rvm.sh rvm reload 4>.查看版本庫: rvm list known 5>.最后便可安裝ruby了,當然版本可以任選,反正我選2.4.4 rvm install 2.4.4 6>.檢查安裝情況 rvm list 7>.設置默認運行的ruby版本: rvm use 2.4.2 --default 8>.升級gem wget https://rubygems.org/rubygems/rubygems-2.7.7.zip gem update --system gem install rubygems-update update_rubygems ruby setup.rb --help ``` **# 3.生成創建集群的腳本redis-trib.rb** ``` [root@host51 src]# echo $PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin [root@host51 src]# cd [root@host51 ~]# cp redis-4.0.8/src/redis-trib.rb /usr/local/bin/ ``` **# 4.創建集群:** ``` [root@host51 ~]# redis-trib.rb create --replicas 1 \ 192.168.166.207:6380 \ 192.168.166.207:7001 \ 192.168.166.208:6380 \ 192.168.166.208:7001 \ 192.168.166.209:6380 \ 192.168.166.209:7001 cat /var/lib/redis/6052/nodes-6052.conf #集群配置文件 每臺 redis服務 在本機登錄 查看集群信息 ``` **# 5.檢測集群** ``` redis-trib.rb check 192.168.166.207:6380 >>> Performing Cluster Check (using node 192.168.166.207:6380) S: b33290c16e796b87b41aa3749e373c57786749d8 192.168.166.207:6380 slots: (0 slots) slave replicates b6aaa9768e32356b82a80b74c96b43700a6689fa M: 9f35587e04ef19a9662525a7653b36a620d89ca5 192.168.166.207:7701 slots:0-5460 (5461 slots) master 1 additional replica(s) S: daafc5ff19fb57a359d2a32f05705fc37e9d8a12 192.168.166.208:6380 slots: (0 slots) slave replicates 1c0260b0b0ffc998f1b29852b01d1d0d9196acb3 M: b6aaa9768e32356b82a80b74c96b43700a6689fa 192.168.166.209:6380 slots:5461-10922 (5462 slots) master 1 additional replica(s) M: 1c0260b0b0ffc998f1b29852b01d1d0d9196acb3 192.168.166.208:7701 slots:10923-16383 (5461 slots) master 1 additional replica(s) S: f4103866ad625d94d48f7251b43c42e9471c458a 192.168.166.209:7701 slots: (0 slots) slave replicates 9f35587e04ef19a9662525a7653b36a620d89ca5 [OK] All nodes agree about slots configuration. >>> Check for open slots... >>> Check slots coverage... [OK] All 16384 slots covered. ```
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