五、prometheus从node_exporter中收集监控数据并展示

一时失言乱红尘 2023-03-04 05:25 6阅读 0赞

## 1、在prometheus的配置文件prometheus.yml中添加node\_exporter组件（一定要注意空格，不然会报错的） ##

scrape_configs:
      - job_name: 'prometheus'
        static_configs:
          - targets: ['localhost:9090']
      # 采集node exporter监控数据
      - job_name: 'node'
        static_configs:
     - targets: ['localhost:9100']

## 或者直接加到prometheus后面，这样的话之后加入的组件不好区分，推荐上面的配置。 ##

scrape_configs:
      - job_name: 'prometheus'
        static_configs:
          - targets: ['localhost:9090','localhost:9100']

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## 2、重启prometheus ##

./Prometheus  #点击刷新页面

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注意:出现黄色的警告提示说明你的系统时间没有同步，解决方式如下（还有其方式，自己百度）：

# yum -y install ntp
    # systemctl enable ntpd
    # ntpdate time1.aliyun.com

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjIzMDM0OA_size_16_color_FFFFFF_t_70 2]  
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## 3、promQL测试收集到的数据 ##

increase(node_cpu_seconds_total{ mode='idle'}[1m])  #cpu空闲量

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