redis-cluster
使用官方的redis-trib.rb构建redis集群,要让redis cluster集群正常工作需要有三个主节点，因此我们在三台机器上部署6个节点，每台机器一个master一个slave。
环境：
p-hsg-redis-1 192.168.10.81 7000/7001
p-hsg-redis-2 192.168.10.82 7000/7001
p-hsg-redis-3 192.168.10.83 7000/7001
部署流程：
1.安装redis－server
我这里已经有saltstack的自动化构建脚本，因此使用salt安装软件。具体redis安装方法不再赘述。
salt-call state.sls redis.cluster
2.修改配置文件
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| root@p-hsg-redis-1:/etc/redis# cat /etc/redis/7000.conf
protected-mode no
daemonize yes
port 7000
cluster-enabled yes
cluster-config-file nodes-7000.conf
cluster-node-timeout 15000
appendonly yes
dir /var/lib/redis/7000
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3.启动redis节点
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| root@p-hsg-redis-3:/etc/redis# ps -ef | grep redis
root 30431 1 0 15:12 ? 00:00:00 /usr/local/bin/redis-server *:7001 [cluster]
root 30446 1 0 15:12 ? 00:00:00 /usr/local/bin/redis-server *:7000 [cluster]
root 30450 11073 0 15:12 pts/1 00:00:00 grep --color=auto redis
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4.创建集群
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| redis-trib.rb create --replicas 1 192.168.10.81:7001 192.168.10.81:7000 192.168.10.82:7000 192.168.10.82:7001 192.168.10.83:7000 192.168.10.83:7001
>>> Creating cluster
>>> Performing hash slots allocation on 6 nodes...
Using 3 masters:
192.168.10.81:7001
192.168.10.82:7000
192.168.10.83:7000
Adding replica 192.168.10.82:7001 to 192.168.10.81:7001
Adding replica 192.168.10.81:7000 to 192.168.10.82:7000
Adding replica 192.168.10.83:7001 to 192.168.10.83:7000
M: 5fd250591aa474d6370e1df547959c5895716192 192.168.10.81:7001
slots:0-5460 (5461 slots) master
S: ef8bf8a326894fee37a398d3f88de3120fc71ea5 192.168.10.81:7000
replicates dc62f19b8894db1816f7b92e3fe05b8244832d3e
M: dc62f19b8894db1816f7b92e3fe05b8244832d3e 192.168.10.82:7000
slots:5461-10922 (5462 slots) master
S: eb2c7cc3cb56bb5ee124d80e353a91331d092042 192.168.10.82:7001
replicates 5fd250591aa474d6370e1df547959c5895716192
M: 1773d96052f573361a13b5e9015f947b340d45cd 192.168.10.83:7000
slots:10923-16383 (5461 slots) master
S: 670f158355b93b4a7ac30d69dc3e1e8c4c484a9f 192.168.10.83:7001
replicates 1773d96052f573361a13b5e9015f947b340d45cd
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 192.168.10.81:7001)
M: 5fd250591aa474d6370e1df547959c5895716192 192.168.10.81:7001
slots:0-5460 (5461 slots) master
1 additional replica(s)
M: 1773d96052f573361a13b5e9015f947b340d45cd 192.168.10.83:7000
slots:10923-16383 (5461 slots) master
1 additional replica(s)
S: ef8bf8a326894fee37a398d3f88de3120fc71ea5 192.168.10.81:7000
slots: (0 slots) slave
replicates dc62f19b8894db1816f7b92e3fe05b8244832d3e
S: 670f158355b93b4a7ac30d69dc3e1e8c4c484a9f 192.168.10.83:7001
slots: (0 slots) slave
replicates 1773d96052f573361a13b5e9015f947b340d45cd
M: dc62f19b8894db1816f7b92e3fe05b8244832d3e 192.168.10.82:7000
slots:5461-10922 (5462 slots) master
1 additional replica(s)
S: eb2c7cc3cb56bb5ee124d80e353a91331d092042 192.168.10.82:7001
slots: (0 slots) slave
replicates 5fd250591aa474d6370e1df547959c5895716192
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.
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