一台机器搭建redis集群---多实例

电玩女神 2023-07-13 04:10 11阅读 0赞

# 一台机器搭建redis集群—多实例 #

### 一、下载redis安装包 ###

[root@iZbp106mxhbe3q1damu43yZ src] http://download.redis.io/releases/redis-3.2.4.tar.gz
    [root@iZbp106mxhbe3q1damu43yZ src] -zxvf redis-3.2.2.tar.gz
    [root@iZbp106mxhbe3q1damu43yZ src] redis-3.2.2/
    [root@iZbp106mxhbe3q1damu43yZ src] && make install

### 二、 拷贝文件 ###

[root@iZbp106mxhbe3q1damu43yZ src]# cd /usr/local/redis-3.2.2/src/
    [root@iZbp106mxhbe3q1damu43yZ src]# cp redis-trib.rb /usr/local/bin/

### 三、创建集群目录及拷贝配置文件 ###

[root@iZbp106mxhbe3q1damu43yZ ~]# mkdir /usr/local/redis-cluster/ 
    [root@iZbp106mxhbe3q1damu43yZ ~]# cd /usr/local/redis-cluster/
    [root@iZbp106mxhbe3q1damu43yZ redis-cluster]# mkdir {7000,7001,7002,7003,7004,7005}
    
    [root@iZbp106mxhbe3q1damu43yZ redis-cluster]# for i in {7000,7001,7002,7003,7004,7005}
    > do
    > cp /usr/local/redis-3.2.2/redis.conf  $i/
    > done

### 四、修改配置文件 ###

84 port 7000 #端口[7000-7005]
    61 bind 127.0.0.1 #IP根据节点机器可访问IP
    128 daemonize yes #redis后台运行
    150 pidfile /var/run/redis_7000.pid #pidfile文件对应[7000-7005]
    721 cluster-enabled yes  #开启集群模式
    729 cluster-config-file nodes-7000.conf #集群的配置，配置文件首次启动自动生成
    735 cluster-node-timeout 6000 #请求超时自行设置
    593 appendonly yes #打开持久化
    247 dir /usr/local/redis-cluster/7000 #目录端口必须配置指定，否则无法启动
    
    [root@iZbp106mxhbe3q1damu43yZ 7000]# sed -i 's/7000/70001/g' redis.conf

### 五、启动redis实例 ###

[root@iZbp106mxhbe3q1damu43yZ ~]# cd /usr/local/redis-3.2.2/src/
    [root@iZbp106mxhbe3q1damu43yZ src]# for i in {7001,7002,7003,7004,7005}
    > do
    > redis-server /usr/local/redis-cluster/$i/redis.conf 
    > done

### 六、安装ruby ###

[root@iZbp106mxhbe3q1damu43yZ src]# yum -y install ruby rubygems
    [root@iZbp106mxhbe3q1damu43yZ src]# gem install redis -v 3.2.2
    Fetching: redis-3.2.2.gem (100%)
    Successfully installed redis-3.2.2
    Parsing documentation for redis-3.2.2
    Installing ri documentation for redis-3.2.2
    1 gem installed

### 七、使用redis-tribe.rb创建集群 ###

[root@iZbp106mxhbe3q1damu43yZ 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
    >>> 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: db82d8bfd79c85aeca2ed50bf78e3502a7bbe7ac 127.0.0.1:7000
       slots:0-5460 (5461 slots) master
    M: c636cb9138e6e414b651d13633198242a2a7dd4e 127.0.0.1:7001
       slots:5461-10922 (5462 slots) master
    M: bb1a95c8ab4b19dec86f3976af1dac8761a6740a 127.0.0.1:7002
       slots:10923-16383 (5461 slots) master
    S: 132ae7137200a4ff5c4a658d49ed54b6c6160d38 127.0.0.1:7003
       replicates db82d8bfd79c85aeca2ed50bf78e3502a7bbe7ac
    S: 907bdc846e111cd3066e6dacb582a8f373cb5853 127.0.0.1:7004
       replicates c636cb9138e6e414b651d13633198242a2a7dd4e
    S: 33385640c281bb251d33be666afe27f06974c45a 127.0.0.1:7005
       replicates bb1a95c8ab4b19dec86f3976af1dac8761a6740a
    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: db82d8bfd79c85aeca2ed50bf78e3502a7bbe7ac 127.0.0.1:7000
       slots:0-5460 (5461 slots) master
    M: c636cb9138e6e414b651d13633198242a2a7dd4e 127.0.0.1:7001
       slots:5461-10922 (5462 slots) master
    M: bb1a95c8ab4b19dec86f3976af1dac8761a6740a 127.0.0.1:7002
       slots:10923-16383 (5461 slots) master
    M: 132ae7137200a4ff5c4a658d49ed54b6c6160d38 127.0.0.1:7003
       slots: (0 slots) master
       replicates db82d8bfd79c85aeca2ed50bf78e3502a7bbe7ac
    M: 907bdc846e111cd3066e6dacb582a8f373cb5853 127.0.0.1:7004
       slots: (0 slots) master
       replicates c636cb9138e6e414b651d13633198242a2a7dd4e
    M: 33385640c281bb251d33be666afe27f06974c45a 127.0.0.1:7005
       slots: (0 slots) master
       replicates bb1a95c8ab4b19dec86f3976af1dac8761a6740a
    [OK] All nodes agree about slots configuration.
    >>> Check for open slots...
    >>> Check slots coverage...
    [OK] All 16384 slots covered.
    
    
    [root@iZbp106mxhbe3q1damu43yZ src]# redis-cli -c -h 127.0.0.1 -p 7002
    127.0.0.1:7002> CLUSTER INFO  #集群信息
    cluster_state:ok
    cluster_slots_assigned:16384
    cluster_slots_ok:16384
    cluster_slots_pfail:0
    cluster_slots_fail:0
    cluster_known_nodes:6
    cluster_size:3
    cluster_current_epoch:6
    cluster_my_epoch:3
    cluster_stats_messages_sent:482
    cluster_stats_messages_received:482
    127.0.0.1:7002> CLUSTER NODES  #集群节点
    c636cb9138e6e414b651d13633198242a2a7dd4e 127.0.0.1:7001 master - 0 1582110887710 2 connected 5461-10922
    bb1a95c8ab4b19dec86f3976af1dac8761a6740a 127.0.0.1:7002 myself,master - 0 0 3 connected 10923-16383
    db82d8bfd79c85aeca2ed50bf78e3502a7bbe7ac 127.0.0.1:7000 master - 0 1582110889714 1 connected 0-5460
    33385640c281bb251d33be666afe27f06974c45a 127.0.0.1:7005 slave bb1a95c8ab4b19dec86f3976af1dac8761a6740a 0 1582110888712 6 connected
    907bdc846e111cd3066e6dacb582a8f373cb5853 127.0.0.1:7004 slave c636cb9138e6e414b651d13633198242a2a7dd4e 0 1582110888712 2 connected
    132ae7137200a4ff5c4a658d49ed54b6c6160d38 127.0.0.1:7003 slave db82d8bfd79c85aeca2ed50bf78e3502a7bbe7ac 0 1582110888712 1 connected
    127.0.0.1:7002> exit