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judasnjudasn
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2019-07-06
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‎markdown-file/Grafana-Install-And-Settings.md

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- 官网：<https://hub.docker.com/r/grafana/grafana/>
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```
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docker run -d --name grafana -p 3000:3000 -v /Users/gitnavi/docker_data/grafana/data grafana/grafana
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mkdir -p /data/docker/grafana/data
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chmod 777 -R /data/docker/grafana/data
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docker run -d --name grafana -p 3000:3000 -v /data/docker/grafana/data:/var/lib/grafana grafana/grafana
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docker exec -it grafana /bin/bash
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容器中默认的配置文件位置：/etc/grafana/grafana.ini
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复制出配置文件到宿主机：docker cp grafana:/etc/grafana/grafana.ini /Users/gitnavi/
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```
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‎markdown-file/Prometheus-Install-And-Settings.md

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# Prometheus 安装和配置
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- 特别说明：一般这类环境要尽可能保证所有服务器时间一致
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## Prometheus Docker 安装
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- 官网：<https://prometheus.io/>
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- 这里以 Spring Boot Metrics 为收集信息
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- 创建配置文件：/Users/gitnavi/docker_data/prometheus/config/prometheus.yml
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- 创建配置文件：`vim /data/docker/prometheus/config/prometheus.yml`
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- 在 scrape_configs 位置下增加我们自己应用的路径信息
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```
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```
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docker run -d --name prometheus -p 9091:9090 \
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-v /Users/gitnavi/docker_data/prometheus/config/prometheus.yml:/etc/prometheus/prometheus.yml \
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-v /data/docker/prometheus/config/prometheus.yml:/etc/prometheus/prometheus.yml \
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prom/prometheus
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```
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## 配置
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- 官网 exporter 列表：<https://prometheus.io/docs/instrumenting/exporters/>
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- 官网 exporter 暴露的端口列表：<https://github.com/prometheus/prometheus/wiki/Default-port-allocations>
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### CentOS7 服务器
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- 当前最新版本：node_exporter 0.18.1（201907）
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```
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mkdir -p /usr/local/prometheus/node_exporter
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cd /usr/local/prometheus/node_exporter
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wget https://github.com/prometheus/node_exporter/releases/download/v0.18.1/node_exporter-0.18.1.linux-amd64.tar.gz
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tar -zxvf node_exporter-0.18.1.linux-amd64.tar.gz
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```
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```
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创建Systemd服务
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vim /etc/systemd/system/node_exporter.service
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[Unit]
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Description=node_exporter
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After=network.target
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[Service]
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Type=simple
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User=root
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ExecStart=/usr/local/prometheus/node_exporter/node_exporter-0.18.1.linux-amd64/node_exporter
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Restart=on-failure
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[Install]
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WantedBy=multi-user.target
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```
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- 关于 ExecStart 参数，可以再附带一些启动监控的参数，官网介绍：<https://github.com/prometheus/node_exporter/blob/master/README.md#enabled-by-default>
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- 格式：`ExecStart=/usr/local/prometheus/node_exporter/node_exporter-0.18.1.linux-amd64/node_exporter --collectors.enabled meminfo,hwmon,entropy`
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```
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启动 Node exporter
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systemctl start node_exporter
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systemctl daemon-reload
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systemctl status node_exporter
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```
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```
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修改prometheus.yml，加入下面的监控目标：
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vim /usr/local/prometheus/prometheus.yml
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scrape_configs:
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- job_name: 'centos7'
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static_configs:
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- targets: ['127.0.0.1:9100']
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labels:
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instance: centos7_node1
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```
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- 重启 prometheus：`docker restart prometheus`
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- Grafana 有现成的 dashboard：
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- <https://grafana.com/dashboards/405>
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- <https://grafana.com/dashboards/8919>
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----------------------------------------------------------------------------------------------
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### Nginx 指标
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- 这里使用 Nginx VTS exporter：<https://github.com/hnlq715/nginx-vts-exporter>
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- 安装 nginx 模块：
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```
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git clone --depth=1 https://github.com/vozlt/nginx-module-vts.git
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编译 nginx 的时候加上：
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./configure --prefix=/usr/local/nginx --with-http_ssl_module --add-module=/opt/nginx-module-vts
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make（已经安装过了，就不要再 make install）
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```
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```
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修改Nginx配置
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http {
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vhost_traffic_status_zone;
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vhost_traffic_status_filter_by_host on;
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...
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server {
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...
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location /status {
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vhost_traffic_status_display;
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vhost_traffic_status_display_format html;
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}
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}
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}
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验证nginx-module-vts模块：http://IP/status
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```
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```
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如果不想统计流量的server，可以禁用vhost_traffic_status，配置示例：
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server {
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...
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vhost_traffic_status off;
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...
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}
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```
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- 安装 nginx-vts-exporter
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```
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wget -O nginx-vts-exporter-0.5.zip https://github.com/hnlq715/nginx-vts-exporter/archive/v0.5.zip
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unzip nginx-vts-exporter-0.5.zip
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mv nginx-vts-exporter-0.5 /usr/local/prometheus/nginx-vts-exporter
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chmod +x /usr/local/prometheus/nginx-vts-exporter/bin/nginx-vts-exporter
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```
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```
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创建Systemd服务
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vim /etc/systemd/system/nginx_vts_exporter.service
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[Unit]
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Description=nginx_exporter
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After=network.target
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[Service]
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Type=simple
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User=root
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ExecStart=/usr/local/prometheus/nginx-vts-exporter/bin/nginx-vts-exporter -nginx.scrape_uri=http://localhost/status/format/json
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Restart=on-failure
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[Install]
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WantedBy=multi-user.target
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```
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```
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启动nginx-vts-exporter
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systemctl start nginx_vts_exporter.service
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systemctl status nginx_vts_exporter.service
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```
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```
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修改prometheus.yml，加入下面的监控目标：
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- job_name: nginx
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static_configs:
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- targets: ['127.0.0.1:9913']
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labels:
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instance: web1
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```
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- 重启 prometheus：`docker restart prometheus`
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- Grafana 有现成的 dashboard：
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- <https://grafana.com/dashboards/2949>
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- <https://grafana.com/dashboards/2984>
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----------------------------------------------------------------------------------------------
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### 微服务下的多服务收集
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- <https://blog.csdn.net/zhuyu19911016520/article/details/88411371>
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----------------------------------------------------------------------------------------------
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### 告警
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- <https://blog.csdn.net/zhuyu19911016520/article/details/88627004>
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- <https://www.jianshu.com/p/e59cfd15612e>
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----------------------------------------------------------------------------------------------
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- 告警配置
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- 告警检测
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- [Grafana+Prometheus系统监控之邮件报警功能](https://blog.52itstyle.vip/archives/2014/)
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- [Grafana+Prometheus系统监控之钉钉报警功能](https://blog.52itstyle.vip/archives/2029/)
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- [Grafana+Prometheus系统监控之webhook](https://blog.52itstyle.vip/archives/2068/)
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## 其他资料
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- <>
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- <>
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- <https://www.aneasystone.com/archives/2018/11/prometheus-in-action.html>
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- 写得非常非常非常好
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- <https://www.hi-linux.com/posts/27014.html>
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- <>
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- <>
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- <>

‎markdown-file/wrk-Install-And-Settings.md

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## 使用
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- 启用 10 个线程，每个线程发起 100 个连接，持续 15 秒：`wrk -t10 -c100 -d15s http://www.baidu.com`
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- 启用 10 个线程，每个线程发起 100 个连接，持续 15 秒：`wrk -t5 -c5 -d30s http://www.baidu.com`
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- 最终报告：
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```
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Running 15s test @ http://www.baidu.com
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10 threads and 100 connections
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Running 30s test @ http://www.baidu.com
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5 threads and 5 connections
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Thread Stats Avg Stdev Max +/- Stdev
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Latency 208.39ms 324.00ms 1.91s 87.70%
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Req/Sec 82.68 64.81 414.00 70.60%
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11345 requests in 15.02s, 166.51MB read
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Socket errors: connect 0, read 20, write 0, timeout 59
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Requests/sec: 755.26
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Transfer/sec: 11.08MB
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Latency 44.59ms 17.41ms 331.91ms 95.66%
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Req/Sec 23.11 5.77 30.00 57.04%
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3439 requests in 30.03s, 50.47MB read
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Socket errors: connect 0, read 10, write 0, timeout 0
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Requests/sec: 114.52
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Transfer/sec: 1.68MB
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```
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#### 使用 lua 脚本（发送一个 post 请求）

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