性能测试之redis集群监控环境搭建：prometheus + redis_exporter + grafana

傷城~ 2023-02-23 08:40 2阅读 0赞

### **搭建redis集群** ###

### 1、环境 ###

### 操作系统：centos7.4 ###

redis版本：redis-5.0.4

说明：一台云服务器（[云服务器抢购地址][Link 1]）模拟6个redis节点，3个master，3个slave

redis安装：

https://www.cnblogs.com/uncleyong/p/9882843.html

2、创建集群节点目录

mkdir /usr/local/redis\_cluster

cd /usr/local/redis\_cluster/

mkdir -p 7001/data 7002/data 7003/data 7004/data 7005/data 7006/data

3、第一个节点配置

cd 7001

cp ~/myfile/redis-5.0.4/redis.conf ./

vim redis.conf

port 7001 # 节点端口号daemonize yes # 以后台进程的方式启动redis实例bind 172.16.45.250 # 实例绑定当前机器IP地址dir /usr/local/redis-cluster/7001/data/pidfile /var/run/redis_7001.pid # 指定该进程pidfilecluster-enabled yes # 启动集群模式cluster-config-file nodes7001.confcluster-node-timeout 5000 # 超时时间5sappendonly yes # 开启aop日志requirepass test123 # master开启密码保护

4、其余节点配置

复制配置文件：

cp redis.conf ../7002/

cp redis.conf ../7003/

cp redis.conf ../7004/

cp redis.conf ../7005/

cp redis.conf ../7006/

批量替换，比如修改7002的配置文件

:%s/7001/7002/g

5、启动所有redis实例

写一个脚本

vim start-all-redis.shcd /usr/local/redis/bin/

./redis-server /usr/local/redis_cluster/7001/redis.conf./redis-server /usr/local/redis_cluster/7002/redis.conf./redis-server /usr/local/redis_cluster/7003/redis.conf./redis-server /usr/local/redis_cluster/7004/redis.conf./redis-server /usr/local/redis_cluster/7005/redis.conf./redis-server /usr/local/redis_cluster/7006/redis.conf

添加执行权限：chmod +x start-all-redis.sh

./start-all-redis.sh

查看进程

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6、创建集群

./redis-cli -a test123 --cluster create --cluster-replicas 1 172.16.45.250:7001 172.16.45.250:7002 172.16.45.250:7003 172.16.45.250:7004 172.16.45.250:7005 172.16.45.250:7006

\--cluster-replicas 1，表示主从复制比例为 1:1，即一个主节点对应一个从节点

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7、操作

连接到集群的某个节点：./redis-cli -a test123 -c -h 172.16.45.250 -p 7001

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集群节点

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集群信息

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设置值，放到7002端口节点了

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**搭建prometheus**

1、下载

wget https://github.com/prometheus/prometheus/releases/download/v2.19.1/prometheus-2.19.1.linux-amd64.tar.gz

2、安装、配置

tar -zxvf prometheus-2.19.1.linux-amd64.tar.gz -C /usr/local/

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配置

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改为如下（正确的方式是添加一个node，才在下面添加job，因为我们启动node的服务时，可以看到服务端口）

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3、启动服务

./prometheus

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Prometheus内置了一个web界面，我们可通过http://ip:9090进行访问

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**搭建redis\_exporter**

### 1、下载https://github.com/oliver006/redis\_exporter/releases/download/v1.8.0/redis\_exporter-v1.8.0.linux-amd64.tar.gz ###

2、解压

tar -zxvf redis\_exporter-v1.8.0.linux-amd64.tar.gz -C /usr/local/

3、启动服务

./redis\_exporter -redis.addr localhost:7001  -redis.password test123

4、在prometheus.yml中加入job

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重启后，可以看到redis集群的状态均为UP

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### **搭建grafana** ###

tar -zxvf grafana-6.7.3.linux-amd64.tar.gz -C /usr/local/

默认读取conf下的的默认配置文件defaults.ini

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修改配置文件grafana.ini中端口为3001

然后启动服务的时候，指定配置文件：

./grafana-server --config=../conf/grafana.ini

然后就是可以访问了：http://IP:3001

添加数据源

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选择Prometheus

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输入URL

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保存并测试

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成功

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导入json模板

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效果图（下图左上角instance处，我们可以选择不同的集群节点）

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[Link 1]: http://mp.weixin.qq.com/s?__biz=MzIxMzMxMDcwNA==&mid=2247484525&idx=3&sn=b0bfa421f6e739078a7737933b8ca768&chksm=97b989f2a0ce00e4d83e8ae0da0a9695a88f54afaddca4566294d29ddf16d79fb5a14e74c4c7&scene=21#wechat_redirect
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