redis-cluster集群单机搭建
闲来无事自己做的关于redis-cluster集群的测试redis的安装
下载安装包（这里使用的版本是：redis-3.2.9.tar.gz）
cd /home/download
tar -zxvf redis-3.2.9.tar.gz
mv redis-3.2.9 redis
创建所需要的以端口为区别的文件夹
mkdir cluster
cd cluster && mkdir 7000 7001 7002 7003 7004 7005
cd /home/download/redis
cp redis.conf /home/download/cluster/7000
修改7000里面的配置文件
vim /home/download/cluster/7000/redis.conf
修改以下几项
port 7000
daemonize yes
cluster-enabled yes
cluster-config-file nodes-7000.conf
cluster-node-timeout 5000
appendonly yes
分别复制到其余的文件夹下面，修改端口号和文件名称一样
安装集群管理插件
redis-3.2.1.gem 网上下载一个我这不是最新版本的
yum install ruby rubygems -y
gem install -l redis-3.2.1.gem
分别启动6个redis
cd /home/download/redis/src
./redis-server /home/download/cluster/7000/redis.conf
./redis-server /home/download/cluster/7001/redis.conf
./redis-server /home/download/cluster/7002/redis.conf
./redis-server /home/download/cluster/7003/redis.conf
./redis-server /home/download/cluster/7004/redis.conf
./redis-server /home/download/cluster/7005/redis.conf
检查启动情况
pa-ef | grep redis
root 49131 10 Jul29 ? 00:01:03 ./redis-server 127.0.0.1:7000
root 49136 10 Jul29 ? 00:01:03 ./redis-server 127.0.0.1:7001
root 49140 10 Jul29 ? 00:01:03 ./redis-server 127.0.0.1:7002
root 49257 10 Jul29 ? 00:01:03 ./redis-server 127.0.0.1:7003
root 49261 10 Jul29 ? 00:01:03 ./redis-server 127.0.0.1:7004
root 49265 10 Jul29 ? 00:01:03 ./redis-server 127.0.0.1:7005
root 76733757390 20:49 pts/2 00:00:00 grep --color=auto redis-server
创建集群
./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
(上面的‘1’表示为主的创建一个slave的)
>>> 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: a08504e2272ddcb9383baf4258bd016d2161d260 127.0.0.1:7000
slots:0-5460 (5461 slots) master
M: c5ec423721e193f1abb5926194189068d71f2966 127.0.0.1:7001
slots:5461-10922 (5462 slots) master
M: e5db2e4845b7869dcbfbbc45bdf6ef22f1187867 127.0.0.1:7002
slots:10923-16383 (5461 slots) master
S: 37e0303c6eb605df80c10de82c4bd8d2f85ae80f 127.0.0.1:7003
replicates a08504e2272ddcb9383baf4258bd016d2161d260
S: 71518be19ddd2a2ae53fe0f88112897654eb56de 127.0.0.1:7004
replicates c5ec423721e193f1abb5926194189068d71f2966
S: a46dd45983767cc4e50d60baf99e2a9f304d740f 127.0.0.1:7005
replicates e5db2e4845b7869dcbfbbc45bdf6ef22f1187867
Can I set the above configuration? (type 'yes' to accept): yes
会打印出以上内容，输入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: a08504e2272ddcb9383baf4258bd016d2161d260 127.0.0.1:7000
slots:0-5460 (5461 slots) master
1 additional replica(s)
M: c5ec423721e193f1abb5926194189068d71f2966 127.0.0.1:7001
slots:5461-10922 (5462 slots) master
1 additional replica(s)
S: 71518be19ddd2a2ae53fe0f88112897654eb56de 127.0.0.1:7004
slots: (0 slots) slave
replicates c5ec423721e193f1abb5926194189068d71f2966
S: a46dd45983767cc4e50d60baf99e2a9f304d740f 127.0.0.1:7005
slots: (0 slots) slave
replicates e5db2e4845b7869dcbfbbc45bdf6ef22f1187867
M: e5db2e4845b7869dcbfbbc45bdf6ef22f1187867 127.0.0.1:7002
slots:10923-16383 (5461 slots) master
1 additional replica(s)
S: 37e0303c6eb605df80c10de82c4bd8d2f85ae80f 127.0.0.1:7003
slots: (0 slots) slave
replicates a08504e2272ddcb9383baf4258bd016d2161d260
All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
All 16384 slots covered.
致此，搭建成功
测试可用redis-cli -c -p 7001
127.0.0.1:7001> set name ceshi
OK
127.0.0.1:7001> get name
"ceshi"
查看主从信息
# redis-cli -p 7000 cluster nodes
c5ec423721e193f1abb5926194189068d71f2966 127.0.0.1:7001 master - 0 1501473285629 2 connected 5461-10922
71518be19ddd2a2ae53fe0f88112897654eb56de 127.0.0.1:7004 slave c5ec423721e193f1abb5926194189068d71f2966 0 1501473285120 5 connected
a08504e2272ddcb9383baf4258bd016d2161d260 127.0.0.1:7000 myself,master - 0 0 1 connected 0-5460
a46dd45983767cc4e50d60baf99e2a9f304d740f 127.0.0.1:7005 slave e5db2e4845b7869dcbfbbc45bdf6ef22f1187867 0 1501473284107 6 connected
e5db2e4845b7869dcbfbbc45bdf6ef22f1187867 127.0.0.1:7002 master - 0 1501473282077 3 connected 10923-16383
37e0303c6eb605df80c10de82c4bd8d2f85ae80f 127.0.0.1:7003 slave a08504e2272ddcb9383baf4258bd016d2161d260 0 1501473283091 4 connected
# redis-cli -c -p 7005
127.0.0.1:7005> get name
-> Redirected to slot located at 127.0.0.1:7001
"ceshi"
127.0.0.1:7001> exit
# redis-cli -c -p 7002
127.0.0.1:7002> get name
-> Redirected to slot located at 127.0.0.1:7001
"ceshi"
127.0.0.1:7001> exit
#
断点测试
去掉7000redis
# ./redis-cli -c -p 7004
127.0.0.1:7004> get name
"ceshi"
127.0.0.1:7004>
可以取到值，再次查看状态信息
# ./redis-cli -p 7004 cluster nodes
71518be19ddd2a2ae53fe0f88112897654eb56de 127.0.0.1:7004 myself,master - 0 0 7 connected 5461-10922
c5ec423721e193f1abb5926194189068d71f2966 127.0.0.1:7001 slave 71518be19ddd2a2ae53fe0f88112897654eb56de 0 1501473934812 7 connected
37e0303c6eb605df80c10de82c4bd8d2f85ae80f 127.0.0.1:7003 master - 0 1501473937837 8 connected 0-5460
e5db2e4845b7869dcbfbbc45bdf6ef22f1187867 127.0.0.1:7002 master - 0 1501473936828 3 connected 10923-16383
a08504e2272ddcb9383baf4258bd016d2161d260 127.0.0.1:7000 master,fail - 1501473837708 1501473836698 1 disconnected
a46dd45983767cc4e50d60baf99e2a9f304d740f 127.0.0.1:7005 slave e5db2e4845b7869dcbfbbc45bdf6ef22f1187867 0 1501473938843 6 connected
再次启动7000redis
./redis-server /usr/local/src/cluster/7000/redis.conf
# ./redis-cli -p 7004 cluster nodes
71518be19ddd2a2ae53fe0f88112897654eb56de 127.0.0.1:7004 myself,master - 0 0 7 connected 5461-10922
c5ec423721e193f1abb5926194189068d71f2966 127.0.0.1:7001 slave 71518be19ddd2a2ae53fe0f88112897654eb56de 0 1501474156543 7 connected
37e0303c6eb605df80c10de82c4bd8d2f85ae80f 127.0.0.1:7003 master - 0 1501474159068 8 connected 0-5460
e5db2e4845b7869dcbfbbc45bdf6ef22f1187867 127.0.0.1:7002 master - 0 1501474156038 3 connected 10923-16383
a08504e2272ddcb9383baf4258bd016d2161d260 127.0.0.1:7000 slave 37e0303c6eb605df80c10de82c4bd8d2f85ae80f 0 1501474157049 8 connected
a46dd45983767cc4e50d60baf99e2a9f304d740f 127.0.0.1:7005 slave e5db2e4845b7869dcbfbbc45bdf6ef22f1187867 0 1501474158057 6 connected
可以看到已经自动成为slave了
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