redis-cluster配置攻略 本人亲自尝试

find / -name  'interfaces' 查找文件路径


./redis-trib.rb  create --replicas 1 127.0.0.1:7000 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 127.0.0.1:7004 127.0.0.1:7005  非常关键，一定要用127.0.0.1


步骤：
1,下载redis。官网下载3.0.0版本，之前几的版本不支持集群模式


下载地址：http://download.redis.io/releases/redis-3.0.0.tar.gz






2：上传服务器，解压，编译
tar -zxvf redis-3.0.0.tar.gz
 mv redis-3.0.0 redis3.0
 cd /usr/local/redis3.0
 make & make install




 3：创建集群需要的目录并拷贝redis
 mkdir -p /usr/local/cluster
 mkdir -p /usr/local/cluster/7000
 mkdir -p /usr/local/cluster/7001
 mkdir -p /usr/local/cluster/7002
 mkdir -p /usr/local/cluster/7003
 mkdir -p /usr/local/cluster/7004
 mkdir -p /usr/local/cluster/7005
 cp -rf /usr/local/redis3.0/* /usr/local/cluster/7000/
 cp -rf /usr/local/redis3.0/* /usr/local/cluster/7001/
 cp -rf /usr/local/redis3.0/* /usr/local/cluster/7002/
 cp -rf /usr/local/redis3.0/* /usr/local/cluster/7003/
 cp -rf /usr/local/redis3.0/* /usr/local/cluster/7004/
 cp -rf /usr/local/redis3.0/* /usr/local/cluster/7005/




 4：修改配置文件redis.conf


 vi /usr/local/cluster/7000/redis.conf


 ##修改配置文件中的下面选项

port 7000

bind 0.0.0.0  允许所有的ip接入 

 daemonize yes
 cluster-enabled yes
 cluster-config-file nodes.conf
 cluster-node-timeout 5000
 appendonly yes




 #同样再对其它配置文件进行修改
vi /usr/local/cluster/7001/redis.conf
 vi /usr/local/cluster/7002/redis.conf
 vi /usr/local/cluster/7003/redis.conf
 vi /usr/local/cluster/7004/redis.conf
 vi /usr/local/cluster/7005/redis.conf
 ##注意：不同的目录配置不同的redis.conf中的port




 5：启动6个redis（重启的话先执行#ps -ef | grep redis | awk '{print $2}' | xargs kill，再删除700*文件夹下除了redis.conf的所有文件，然后再从第5部执行）


 cd /redis/cluster/7000
 redis-server redis.conf
 cd /redis/cluster/7001
 redis-server redis.conf
  cd /redis/cluster/7002
 redis-server redis.conf
 cd /redis/cluster/7003
 redis-server redis.conf
  cd /redis/cluster/7004
 redis-server redis.conf
  cd /redis/cluster/7005
 redis-server redis.conf


 ##启动之后使用命令查看redis的启动情况ps -ef|grep redis




 6,创建redis集群
cd /usr/local/redis3.0/src
 ./redis-trib.rb  create --replicas 1 127.0.0.1:7000 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 127.0.0.1:7004 127.0.0.1:7005


 6.1执行上面的命令的时候会报错，因为是执行的的脚本，需要
 错误内容：/usr/bin/env: ruby: No such file or directory
所以需要安装ruby的环境，这里推荐使用yum install ruby




 yum install ruby




 6.2然后再执行第步的创建集群命令，还会报错，提示缺少rubygems组件
 错误内容：
./redis-trib.rb:24:in `require': no such file to load -- rubygems (LoadError)
 from ./redis-trib.rb:24
 yum install rubygems




 6.3再次执行第步的命令，还会报错，提示不能加载redis，是因为缺少redis的接口
 错误内容：
/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




 gem install redis
这里可能无法安装,因为无法连接gem服务器：
[@zw_22_90 src]# gem install redis --version 3.0.0  
 ERROR:  Could not find a valid gem 'redis' (= 3.0.0) in any repository
 ERROR:  While executing gem ... (Gem::RemoteFetcher::FetchError)




需要手工下载并安装：
wget https://rubygems.global.ssl.fastly.net/gems/redis-3.2.1.gem
 gem install -l ./redis-3.2.1.gem




 6.4 再次执行第步的命令，正常执行
 输入yes，然后配置完成。
[@zw_22_90 src]# ./redis-trib.rb  create --replicas 1 127.0.0.1:7000 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 127.0.0.1:7004 127.0.0.1:7005
 >>> Creating cluster
 Connecting to node 127.0.0.1:7000: OK
 Connecting to node 127.0.0.1:7001: OK
 Connecting to node 127.0.0.1:7002: OK
 Connecting to node 127.0.0.1:7003: OK
 Connecting to node 127.0.0.1:7004: OK
 Connecting to node 127.0.0.1:7005: OK
 >>> Performing hash slots allocation on 6 nodes...
 Using 3 masters:
 127.0.0.1:7000
 127.0.0.1:7001
 127.0.0.1:7002
 Adding replica 127.0.0.1:7003 to 127.0.0.1:7000
 Adding replica 127.0.0.1:7004 to 127.0.0.1:7001
 Adding replica 127.0.0.1:7005 to 127.0.0.1:7002
 M: 2022f24d581b4a7c3342e3245c32927cbd5ec16d 127.0.0.1:7000
    slots:0-5460 (5461 slots) master
 M: 37b7008f80f8c21a698da8cb1f1b32db8c0c415c 127.0.0.1:7001
    slots:5461-10922 (5462 slots) master
 M: ac6dc5fa96e856b34c1ba4c3814394e4ebb698dd 127.0.0.1:7002
    slots:10923-16383 (5461 slots) master
 S: b5b76d70bbb0dbf3e7df8a38f1259e95e2054721 127.0.0.1:7003
    replicates 2022f24d581b4a7c3342e3245c32927cbd5ec16d
 S: 6881f8fef9c25da486f320ebf2ead39c1502db4c 127.0.0.1:7004
    replicates 37b7008f80f8c21a698da8cb1f1b32db8c0c415c
 S: f090526d32cced97731eef2a2e1722a7bac7d9ea 127.0.0.1:7005
    replicates ac6dc5fa96e856b34c1ba4c3814394e4ebb698dd
 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 127.0.0.1:7000)
 M: 2022f24d581b4a7c3342e3245c32927cbd5ec16d 127.0.0.1:7000
    slots:0-5460 (5461 slots) master
 M: 37b7008f80f8c21a698da8cb1f1b32db8c0c415c 127.0.0.1:7001
    slots:5461-10922 (5462 slots) master
 M: ac6dc5fa96e856b34c1ba4c3814394e4ebb698dd 127.0.0.1:7002
    slots:10923-16383 (5461 slots) master
 M: b5b76d70bbb0dbf3e7df8a38f1259e95e2054721 127.0.0.1:7003
    slots: (0 slots) master
    replicates 2022f24d581b4a7c3342e3245c32927cbd5ec16d
 M: 6881f8fef9c25da486f320ebf2ead39c1502db4c 127.0.0.1:7004
    slots: (0 slots) master
    replicates 37b7008f80f8c21a698da8cb1f1b32db8c0c415c
 M: f090526d32cced97731eef2a2e1722a7bac7d9ea 127.0.0.1:7005
    slots: (0 slots) master
    replicates ac6dc5fa96e856b34c1ba4c3814394e4ebb698dd
 [OK] All nodes agree about slots configuration.
 >>> Check for open slots...
 >>> Check slots coverage...
 [OK] All 16384 slots covered.




至此redis集群即搭建成功！

编译进程

#make test 

7，redis-cli命令进入集群环境
[@zw_22_90 src]# redis-cli -c -p 7000


127.0.0.1:7000> quit;




常用命令：
#netstat-tnlp| grep redis 可以看到redis监听端
#redis-cli #keys *     取出当前匹配的所有key
#redis-cli #info  查看链接信息


如果不是使用脚本启动则需要使用redis-cli  shutdown命令来停止
命令：
redis-cli -p 8888 shutdown
redis-cli -p 6379 shutdown


如果觉得使用脚本启动比较麻烦，则可以这样实现上面的脚本启动
命令：
redis-server  /etc/redis/6380.conf


如何停止Redis服务器呢？
脚本启动的的停止方式
命令：/etc/init.d/redis_6380 stop

正常关闭本地redis :  redis-cli shutdown，　默认关闭本地6379的redis

如果正常关闭不了，可以通过杀死线程关闭：kill -9 pid

远程关闭redis 服务器: redis-cli -c -h xxx.xxx.xxx.xxx  -p xxxx -u xxxx -a xxxx  shutdown

例如 ：/usr/local/redis/bin/redis-cli -c -h 192.168.93.1.1 -p 7001 shutdown

实时监控连入状态：
#watch -n 1 -d "/redis/redis-3.0.0/src/redis-cli -h 127.0.0.1 info | grep -e "connected_clients" -e "blocked_clients" -e "used_memory_human" -e "used_memory_peak_human" -e "rejected_connections" -e "evicted_keys" -e "instantaneous""

可以看到redis监听端

#netstat -tnlp |grep redis 

查看各个节点的状态

#/redis/redis-3.0.0/src/redis-cli -c -p 7002 cluster nodes
关闭redis服务
#ps -ef | grep redis | awk '{print $2}' | xargs kill


#make test 测试是否联通
#redis-cli登录客户端

#gem uninstall redis --version 3.0.0 卸载redis版本

#redis-cli -c -p 7000

127.0.0.1:7002> keys *
1) "a"

可以查看所有的键值对