redis5.0集群搭建实战，spring-boot整合redis集群测试

1.下载redis5.0.2

redis-5.0.2

2.安装

tar -zxvf redis-5.0.2.tar.gz
cd redis-5.0.2
make && make install

3.创建并使用集群配置

创建redis-cluster目录和相应的配置目录

mkdir redis-cluster
cd reids-cluster
mkdir 7000 70001 7002 7003 7004 7005

redis-cluster在每个目录中创建一个文件，从7000到7005配置文件的模板，只需使用上面的小例子，但请确保7000根据目录名称用正确的端口号替换端口号,模版如下：

## 7000-7005端口
port 7000
## 后台启动
daemonize yes
## 如果是在单机模拟集群必须指定bind的IP，这里为192.168.4.115
bind 192.168.4.115
## 开启redis-cluster集群
cluster-enabled yes
## 每个实例还包含存储此节点配置的文件的路径，默认情况下为nodes.conf，自动创建
cluster-config-file nodes_7000.conf
## 超时
cluster-node-timeout 500
## 开启aof
appendonly yes

请注意，按预期工作的最小群集需要包含至少三个主节点。对于您的第一次测试，强烈建议启动具有三个主服务器和三个从服务器的六节点集群。

4.启动redis集群

进入redis根目录

cd src 
cp redis-cli /usr/local/bin
cp redis-server /usr/local/bin
redis-server ./redis-cluster/7000/redis.conf
redis-server ./redis-cluster/7001/redis.conf
redis-server ./redis-cluster/7002/redis.conf
redis-server ./redis-cluster/7003/redis.conf
redis-server ./redis-cluster/7004/redis.conf
redis-server ./redis-cluster/7005/redis.conf

查看redis启动的进程

501 88365     1   0  4:52下午 ??         0:08.52 redis-server 192.168.4.115:7000 [cluster] 
501 88367     1   0  4:52下午 ??         0:08.53 redis-server 192.168.4.115:7001 [cluster] 
501 88369     1   0  4:52下午 ??         0:08.50 redis-server 192.168.4.115:7002 [cluster] 
501 88371     1   0  4:52下午 ??         0:08.46 redis-server 192.168.4.115:7003 [cluster] 
501 88373     1   0  4:52下午 ??         0:08.44 redis-server 192.168.4.115:7004 [cluster] 
501 88375     1   0  4:52下午 ??         0:08.40 redis-server 192.168.4.115:7005 [cluster] 

执行redis5新增的集群启动方式

redis-cli --cluster create 192.168.4.115:7000 192.168.4.115:7001 \
192.168.4.115:7002 192.168.4.115:7003 192.168.4.115:7004 192.168.4.115:7005 \
--cluster-replicas 1

这里使用的命令是create，因为我们要创建一个新的集群。

该选项--cluster-replicas 1意味着我们希望每个创建的主服务器都有一个从服 其他参数是我要用于创建新集群的实例的地址列表。

输出结果：

>>> Performing hash slots allocation on 6 nodes...
Master[0] -> Slots 0 - 5460
Master[1] -> Slots 5461 - 10922
Master[2] -> Slots 10923 - 16383
Adding replica 192.168.4.115:7003 to 192.168.4.115:7000
Adding replica 192.168.4.115:7004 to 192.168.4.115:7001
Adding replica 192.168.4.115:7005 to 192.168.4.115:7002
>>> Trying to optimize slaves allocation for anti-affinity
[WARNING] Some slaves are in the same host as their master
M: 4d3203ec44f8090ac52cd46b240782c2002e3bac 192.168.4.115:7000
   slots:[0-5460] (5461 slots) master
M: 25b0adb22a69de53e6dc261f0bd83f9c94e9ce53 192.168.4.115:7001
   slots:[5461-10922] (5462 slots) master
M: c7e12a476431ee892b0c66c62bdef12cde06d2df 192.168.4.115:7002
   slots:[10923-16383] (5461 slots) master
S: 23dee0b82d6ef32bfcdfb1eb9f3dc3a9f5beddb9 192.168.4.115:7003
   replicates 25b0adb22a69de53e6dc261f0bd83f9c94e9ce53
S: 3fca8f25d28bf0fcf4fd2b1b11d9bc9bd084d6c6 192.168.4.115:7004
   replicates c7e12a476431ee892b0c66c62bdef12cde06d2df
S: 9bc42f176e6c4c421c26b55b3e5edc984fed0992 192.168.4.115:7005
   replicates 4d3203ec44f8090ac52cd46b240782c2002e3bac
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 192.168.4.115:7000)
M: 4d3203ec44f8090ac52cd46b240782c2002e3bac 192.168.4.115:7000
   slots:[0-5460] (5461 slots) master
   1 additional replica(s)
S: 9bc42f176e6c4c421c26b55b3e5edc984fed0992 192.168.4.115:7005
   slots: (0 slots) slave
   replicates 4d3203ec44f8090ac52cd46b240782c2002e3bac
M: 25b0adb22a69de53e6dc261f0bd83f9c94e9ce53 192.168.4.115:7001
   slots:[5461-10922] (5462 slots) master
   1 additional replica(s)
M: c7e12a476431ee892b0c66c62bdef12cde06d2df 192.168.4.115:7002
   slots:[10923-16383] (5461 slots) master
   1 additional replica(s)
S: 23dee0b82d6ef32bfcdfb1eb9f3dc3a9f5beddb9 192.168.4.115:7003
   slots: (0 slots) slave
   replicates 25b0adb22a69de53e6dc261f0bd83f9c94e9ce53
S: 3fca8f25d28bf0fcf4fd2b1b11d9bc9bd084d6c6 192.168.4.115:7004
   slots: (0 slots) slave
   replicates c7e12a476431ee892b0c66c62bdef12cde06d2df
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.

确认redis-cluster状态，cluster_state:ok说明成功

redis-cli -h 192.168.4.115 -p 7000
192.168.4.115:7000> cluster info
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:1
cluster_stats_messages_ping_sent:53115
cluster_stats_messages_pong_sent:53112
cluster_stats_messages_sent:106227
cluster_stats_messages_ping_received:53107
cluster_stats_messages_pong_received:53115
cluster_stats_messages_meet_received:5
cluster_stats_messages_received:106227

还可以使用官方写好的redis-cluster脚本，进入redis根目录，里面有一个脚本（与它所包含的目录同名），它是一个简单的bash脚本。要启动具有3个主服务器和3个从服务器的6节点集群，只需键入以下命令

cd utils/create-cluster
## 启动
create-cluster start
## 创建集群
create-cluster create

您现在可以与群集交互，默认情况下，第一个节点将从端口30001开始，关闭命令为

## 关闭
create-cluster stop

5.整合spring-boot

添加maven依赖

<dependency>
    <groupId>org.springframework.bootgroupId>
    <artifactId>spring-boot-starter-data-redisartifactId>
    <version>2.0.3.RELEASEversion>
dependency>

添加redis配置信息

spring:
  redis:
      cluster:
        nodes: 192.168.4.115:7000,192.168.4.115:7001,192.168.4.115:7002,192.168.4.115:7003,192.168.4.115:7004,192.168.4.115:7005

添加SpringBootTest测试

@RunWith(SpringRunner.class)
@SpringBootTest
public class TestDemo {
    @Autowired
    private RedisTemplate redisTemplate;

    @Test
    public void test() {
        redisTemplate.opsForValue().set("redis-cluster-state", "success");
        System.out.println(redisTemplate.opsForValue().get("redis-cluster-state"));
    }
}

输出结果：

2018-12-03 16:54:41.431  INFO 88393 --- [           main] io.lettuce.core.EpollProvider            : Starting without optional epoll library
2018-12-03 16:54:41.433  INFO 88393 --- [           main] io.lettuce.core.KqueueProvider           : Starting without optional kqueue library
success