Exporters | 安装mongodb_exporter

一、下载linux版本的mongodb_exporter

下载地址：https://github.com/percona/mongodb_exporter

wget https://github.com/percona/mongodb_exporter/releases/download/v0.35.0/mongodb_exporter-0.35.0.linux-amd64.tar.gza

二、解压安装包

tar -zxf mongodb_exporter-0.35.0.linux-amd64.tar.gz -C /usr/local
mv /usr/local/mongodb_exporter-* /usr/local/mongodb_exporter
ll /usr/local/mongodb_exporter

三、创建启动服务文件

vim /usr/lib/systemd/system/mongodb_exporter.service
[Unit]
Description=mongodb_exporter
After=network.target
Documentation= https://github.com/percona/mongodb_exporter

[Service]
Type=simple
ExecStart=/usr/local/mongodb_exporter/mongodb_exporter \
          --mongodb.uri=mongodb://用户名:密码@192.158.134.12:27017 \
          --web.listen-address=:9105
          --collect-all    # 默认不收集数据，需要加此参数收集全部数据
Restart=on-failure

[Install]
WantedBy=multi-user.target

四、启动服务

systemctl daemon-reload
systemctl enable --now mongodb_exporter

五、查看端口和服务

ss -nltp|grep 9105
systemctl status mongodb_exporter

六、prometheus-server配置

prometheus.yml配置

scrape_configs:
  - job_name: 'mongodb-exporter'
    file_sd_configs:
    - files:
      - targets/mongodb*.yaml
      refresh_interval: 2m
    relabel_configs:
      - source_labels: [ '__address__' ]
        target_label: 'instance'
        regex: "(.*):.*"
        replacement: $1

elasticsearch_exporter.yaml

[root@test targets]# cat mongodb_exporter.yaml
- targets:
  - 192.158.134.12:9105
  - 192.158.134.13:9105
  - 192.158.134.14:9105
  labels:
    app: "Mongodb数据库集群"
    job: "Mongodb数据库集群"

    # mongodb进程标签
    mongodbstatus: " 恢复正常"
    mongodbconn: "连接数小于最大连接数的80%，"
    mongodbprogram: "mongodb"
    mongodbtype: "服务"

七、动态重启配置文件

kill -HUP `pgrep prometheus`

八、Mongodb_exporter对应的PromSql参数说明

mongodb_ss_connections   # 根指标
mongodb_ss_connections{state="current"}   # 表示当前连接数
mongodb_ss_connections{state="available"}  # 可用的连接数