> For the complete documentation index, see [llms.txt](https://close.gitbook.io/yun-wei-bi-ji/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://close.gitbook.io/yun-wei-bi-ji/centos/prometheus/prometheus-cai-ji-redis-zhi-biao.md).
# Prometheus-采集Redis指标
> Github:
* 云厂商地址: 1.1.1.1
* 服务器地址: 2.2.2.2
### **1. 下载** `redis_exporter`
```
cd /usr/local/src
wget https://github.com/oliver006/redis_exporter/releases/download/v1.55.0/redis_exporter-v1.55.0.linux-amd64.tar.gz
mv redis_exporter-v1.55.0.linux-amd64 /data/redis_exporter
```
* redis\_exporter -h
> -redis.addr：指明一个或多个 Redis 节点的地址，多个节点使用逗号分隔，默认为 redis\://[localhost:6379](http://localhost:6379)\
> -redis.password：验证 Redis 时使用的密码；\
> -redis.file：包含一个或多个redis 节点的文件路径，每行一个节点，此选项与 -redis.addr 互斥。\
> -web.listen-address：监听的地址和端口，默认为 0.0.0.0:912
### **2.运行 redis\_exporter 服务**
* 以 saas 为例, 新建用户: exporter， 权限: 只读， 密码: Qwe123456
* 1\. 方式 A 直接启动。
```
## 无密码
nohup ./redis_exporter redis//r-3nsfvqew8gr0wrr6ko.redis.rds.aliyuncs.com:6379 &
## 有密码
nohup redis_exporter -redis.addr 1.1.1.1:6379 -redis.user exporter -redis.password Qwe123456 -redis-only-metrics &
```
* 2.方式 B 通过 system 管理。
```
cat >> /usr/lib/systemd/system/redis_exporter.service << EOF
[Unit]
Description=redis_exporter
After=network.target
[Service]
Type=simple
ExecStart=/data/redis_exporter/redis_exporter -redis.addr 1.1.1.1:6379 -redis.user exporter -redis.password Qwe123456 -redis-only-metrics
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF
```
```
systemctl daemon-reload
systemctl enable redis_exporter
systemctl start redis_exporter
systemctl status redis_exporter
ss -antpl |grep 9121
LISTEN 0 128 [::]:9121 [::]:* users:(("redis_exporter",pid=3995,fd=3))
```
### **3. Prometheus 配置**
```
root@monitor-1:/data/monitor/prometheus cat prometheus.yml
#- job_name: 'mysql'
# static_configs:
# - targets: ['x.x.x.x:9104']
# labels:
# instance: db1
... 略
# MySQL数据库相关
- job_name: 'Redis数据库'
static_configs:
file_sd_configs:
- refresh_interval: 30s
files:
- "vhosts/redis/*.json"
```
```
root@monitor-1:/data/monitor/prometheus# cat vhosts/mysql/saas.json
[
{
"targets": ["2.2.2.2:9121"],
"labels": {
"label": "xxxx使用",
"account": "account@xxx.com",
"cloud": "xxxxx",
"instance": "1.1.1.1:6379" # Redis不在本地，覆盖 instance
}
}
]
```
```
- Prometheus 命令热加载, 我这里端口: 8090
```
bash\
./promtool check config prometheus.yml\
curl -XPOST [localhost:8090/-/reload](http://localhost:8090/-/reload) # 主配置文件热加载，修改子配置会自动加载
```
```
### **4. Grafana 大屏**
> 根据喜好自行选择: