1：集群中的機器信息
java連接redis集群方式，IP PORT
192.168.3.10 7000,7001,7002
192.168.3.11 7004,7005,7006
2：安裝Redis
分別在10與11機器上面安裝Redis。
（1）解壓安裝
#tar -zxvf redis-3.2.5.tar.gz
#cd redis-3.2.5
#make && make install
（2）修改系統的限制文件
修改文件/etc/security/limits.conf，加入以下兩行：
* soft nofile 102400
* hard nofile 102400
3：創建Redis配置文件
【192.168.3.10】
wzh@hd-master:/usr/local/redis_cluster$
創建7000/redis.conf，7001/redis.conf，7002/redis.conf
【192.168.3.11】
wzh@hd-master:/usr/local/redis_cluster$
創建7004/redis.conf，7005/redis.conf，7006/redis.conf
修改配置文件：
requirepass redis #去掉行前的注釋，并修改密碼為所需的密碼,保存文件
daemonize yes? # 是否后臺運行
port 7000 # 端口
cluster-enabled yes #開啟集群
cluster-config-file nodes-7000.conf
cluster-node-timeout 5000
appendonly no
protected-mode no
# bind 127.0.0.1
說明：
cluster-enabled?選項用于開實例的集群模式， 而?cluster-conf-file?選項則設定了保存節點配置文件的路徑， 默認值為nodes.conf?。其他參數相信童鞋們都知道。節點配置文件無須人為修改， 它由 Redis 集群在啟動時創建， 并在有需要時自動進行更新。
?
4：啟動Redis服務
【192.168.3.10】
wzh@hd-master:~$ redis-server /usr/local/redis_cluster/7000/redis.conf
wzh@hd-master:~$ redis-server /usr/local/redis_cluster/7001/redis.conf
wzh@hd-master:~$ redis-server /usr/local/redis_cluster/7002/redis.conf
【192.168.3.11】
wzh@hd-slave1:~$ redis-server /usr/local/redis_cluster/7004/redis.conf
wzh@hd-slave1:~$ redis-server /usr/local/redis_cluster/7005/redis.conf
wzh@hd-slave1:~$ redis-server /usr/local/redis_cluster/7006/redis.conf
5：集群設置
（1）安裝ruby
$tar zxvf ruby-2.3.1.tar.gz
$ ./configure
$ make
$ sudo make install
（2）安裝rubygems
wzh@hd-master:~$ tar zxvf rubygems-2.6.8.tgz
root@hd-master:~/rubygems-2.6.8# ruby setup.rb
RubyGems 2.6.8 installed
Parsing documentation for rubygems-2.6.8
Installing ri documentation for rubygems-2.6.8
（3）安裝 redis-3.3.1.gem
wzh@hd-master:~$ gem install -l redis-3.3.1.gem
ERROR:? Loading command: install (LoadError)
??????? cannot load such file -- zlib
ERROR:? While executing gem ... (NoMethodError)
??? undefined method `invoke_with_build_args' for nil:NilClass
手動安裝zlib包解決，進入 ruby源碼
wzh@hd-master:~/ruby-2.3.1/ext/zlib$ sudo ruby extconf.rb
root@hd-master:~/ruby-2.3.1/ext/zlib# make
compiling zlib.c
linking shared-object zlib.so
root@hd-master:~/ruby-2.3.1/ext/zlib# make install
/usr/bin/install -c -m 0755 zlib.so /usr/local/lib/ruby/site_ruby/2.3.0/x86_64-linux
?
再次安裝：
root@hd-master:~#? gem install -l redis-3.3.1.gem
Successfully installed redis-3.3.1
Parsing documentation for redis-3.3.1
Installing ri documentation for redis-3.3.1
Done installing documentation for redis after 0 seconds
1 gem installed
root@hd-master:~#
（4）創建集群
redis-trib? create? --replicas? 1? 192.168.3.10:7000 192.168.3.10:7001? 192.168.3.10:7002 ?192.168.3.11:7004 ?192.168.3.11:7005 ?192.168.3.11:7006
?
root@hd-master:/usr/local/redis_cluster# redis-trib? create? --replicas? 1? 192.168.3.10:7000 192.168.3.10:7001? 192.168.3.10:7002 192.168.3.11:7004? 192.168.3.11:7005? 192.168.3.11:7006
>>> Creating cluster
>>> Performing hash slots allocation on 6 nodes...
Using 3 masters:
192.168.3.10:7000
192.168.3.11:7004
192.168.3.10:7001
Adding replica 192.168.3.11:7005 to 192.168.3.10:7000
Adding replica 192.168.3.10:7002 to 192.168.3.11:7004
Adding replica 192.168.3.11:7006 to 192.168.3.10:7001
M: 4807c76cebb29f5a96e607197fd760193dea06ef 192.168.3.10:7000
?? slots:0-5460 (5461 slots) master
M: edca0a2ad7371e7c4af09fbb5457c8ed6ff95a3f 192.168.3.10:7001
?? slots:10923-16383 (5461 slots) master
S: ee23aaa752bf60c748fd5a9814560a4742f04d0c 192.168.3.10:7002
?? replicates ea3a96fefe14dcb9d0e6b9f3e0345d5b4ea8871a
M: ea3a96fefe14dcb9d0e6b9f3e0345d5b4ea8871a 192.168.3.11:7004
?? slots:5461-10922 (5462 slots) master
S: e917ef93693360c9648a254c1c95a88b5da9cdd0 192.168.3.11:7005
?? replicates 4807c76cebb29f5a96e607197fd760193dea06ef
S: b04f5c57362bcabfba5c17c1260ada1a76aa1d50 192.168.3.11:7006
?? replicates edca0a2ad7371e7c4af09fbb5457c8ed6ff95a3f
Can I set the above configuration? (type 'yes' to accept): yes
/usr/local/lib/ruby/gems/2.3.0/gems/redis-3.0.0/lib/redis/client.rb:79:in `call': ERR Slot 0 is already busy (Redis::CommandError)
??????? from /usr/local/lib/ruby/gems/2.3.0/gems/redis-3.0.0/lib/redis.rb:2190:in `block in method_missing'
??????? from /usr/local/lib/ruby/gems/2.3.0/gems/redis-3.0.0/lib/redis.rb:36:in `block in synchronize'
??????? from /usr/local/lib/ruby/2.3.0/monitor.rb:214:in `mon_synchronize'
??????? from /usr/local/lib/ruby/gems/2.3.0/gems/redis-3.0.0/lib/redis.rb:36:in `synchronize'
??????? from /usr/local/lib/ruby/gems/2.3.0/gems/redis-3.0.0/lib/redis.rb:2189:in `method_missing'
??????? from /usr/local/bin/redis-trib:212:in `flush_node_config'
??????? from /usr/local/bin/redis-trib:776:in `block in flush_nodes_config'
??????? from /usr/local/bin/redis-trib:775:in `each'
??????? from /usr/local/bin/redis-trib:775:in `flush_nodes_config'
??????? from /usr/local/bin/redis-trib:1296:in `create_cluster_cmd'
??????? from /usr/local/bin/redis-trib:1701:in `<main>'
root@hd-master:~#
【問題解決】
根據網上其他資料，將redis-3.3.2.gem替換為redis-3.0.0.gem
root@hd-master:/usr/local/redis_cluster# gem list --local
?
*** LOCAL GEMS ***
?
bigdecimal (default: 1.2.8)
did_you_mean (1.0.0)
io-console (default: 0.4.5)
json (default: 1.8.3)
minitest (5.8.3)
net-telnet (0.1.1)
power_assert (0.2.6)
psych (default: 2.0.17)
rake (10.4.2)
rdoc (default: 4.2.1)
redis (3.3.2)
test-unit (3.1.5)
root@hd-master:/usr/local/redis_cluster# gem uninstall redis --version 3.3.2
Successfully uninstalled redis-3.3.2
root@hd-master:/usr/local/redis_cluster#
?
?
root@hd-master:~# gem install --local redis-3.0.0.gem
Successfully installed redis-3.0.0
Parsing documentation for redis-3.0.0
Installing ri documentation for redis-3.0.0
Done installing documentation for redis after 0 seconds
1 gem installed
?
將redis-3.3.2.gem替換為redis-3.0.0.gem之后啟動還是報錯經檢查，這是由于上一次配置集群失敗時留下的配置信息導致的。 只要把redis.conf中定義的?cluster-config-file 所在的文件刪除，重新啟動redis-server及運行redis-trib即可。
分別在10與11機器上面刪除nodes-*.conf配置文件
root@hd-master:/usr/local/redis_cluster#
-rw-r--r--? 1 root root? 751? 8月? 4 17:02 nodes-7000.conf
-rw-r--r--? 1 root root? 751? 8月? 4 17:02 nodes-7001.conf
-rw-r--r--? 1 root root? 751? 8月? 4 17:02 nodes-7002.conf
?
root@hd-master:/usr/local/redis_cluster# redis-trib? create? --replicas? 1? 192.168.3.10:7000 192.168.3.10:7001? 192.168.3.10:7002? 192.168.3.11:7004? 192.168.3.11:7005? 192.168.3.11:7006
>>> Performing Cluster Check (using node 192.168.3.10:7000)
M: 5b5cdec3e1b7ce29a966034a610e937cfb3f83d1 192.168.3.10:7000
?? slots:0-5460 (5461 slots) master
?? 1 additional replica(s)
M: 044ea73e14d77b7a19e2d5c3c5ca7646deb3c15d 192.168.3.10:7001
?? slots:10923-16383 (5461 slots) master
?? 1 additional replica(s)
S: 57ceff995451b80eebf90996f23b92f0446ed034 192.168.3.10:7002
?? slots: (0 slots) slave
?? replicates ed779d661623c2c3eb44db98260948dedcc8f702
M: ed779d661623c2c3eb44db98260948dedcc8f702 192.168.3.11:7004
?? slots:5461-10922 (5462 slots) master
?? 1 additional replica(s)
S: 367dbb4888a0123f205d16f4d720ab703807b7b6 192.168.3.11:7005
?? slots: (0 slots) slave
?? replicates 5b5cdec3e1b7ce29a966034a610e937cfb3f83d1
S: b8d273e16dca3110488d80166351dec3d0833d32 192.168.3.11:7006
?? slots: (0 slots) slave
?? replicates 044ea73e14d77b7a19e2d5c3c5ca7646deb3c15d
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.
6：集群測試
【192.168.3.10】
wzh@hd-master:~$ redis-cli -c -p 7000
192.168.3.10:7000> set name test
-> Redirected to slot [5798] located at 192.168.3.11:7004
OK
192.168.3.11:7004> get name
"test"
192.168.3.11:7004>
?
【192.168.3.11】
wzh@hd-slave1:~$ redis-cli -c -p 7004
127.0.0.1:7004> get name
"test"
127.0.0.1:7004> get address
-> Redirected to slot [3680] located at 192.168.3.10:7000
"qingdao"
192.168.3.10:7000>
?
7：Spring-boot測試
（1）build.gradle增加以下配置
dependencies {compile('org.springframework.boot:spring-boot-starter-data-redis')compile('org.springframework.boot:spring-boot-starter-web')testCompile('org.springframework.boot:spring-boot-starter-test') }
?
（2）application.properties
spring.redis.cluster.nodes=192.168.3.10:7000,192.168.3.10:7001,192.168.3.10:7002,192.168.3.11:7004,192.168.3.11:7005,192.168.3.11:7006
?
（3）TestCtrl.java
package com.example.springbootredis.test;import org.springframework.beans.factory.annotation.Autowired; import org.springframework.data.redis.core.RedisTemplate; import org.springframework.data.redis.core.ValueOperations; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController;import java.util.HashMap; import java.util.Map;/*** Created by yan on 2017/8/6.*/ @RestController @RequestMapping(value = "/api/test",produces = "application/json;charset=utf-8",headers = "Accept=application/json") public class TestCtrl {@AutowiredRedisTemplate<String, String> redisTemplate;@RequestMapping(value = "/set/{key}/{value}",method = RequestMethod.GET)public Map<String, String> set(@PathVariable String key, @PathVariable String value){ValueOperations<String,String> valueOperations = redisTemplate.opsForValue();valueOperations.set(key, value);Map<String, String> map = new HashMap<String, String>();map.put(key, value);return map;}@RequestMapping(value = "/get/{key}",method = RequestMethod.GET)public Map<String, String> get(@PathVariable String key){ValueOperations<String,String> valueOperations = redisTemplate.opsForValue();String value = valueOperations.get(key);Map<String, String> map = new HashMap<String, String>();map.put(key, value);return map;} }
?
?
8：參考
http://www.linuxidc.com/Linux/2016-09/135122.htm
http://www.cnblogs.com/yuanermen/p/5717885.html
?
