mongodb_exporter +prometheus

1.数据库创建账号密码：

db.createUser("mongomo",{roles:[{role:"read",db:"admin"},{role:"readAnyDatabase",db:"admin"},{role:"clusterMonitor",db:"admin"},{role:"read",db:"local"}]}

如果需要改，就用db.updateUser即可。

wget https://github.com/percona/mongodb_exporter/releases/download/v0.11.2/mongodb_exporter-0.11.2.linux-amd64.tar.gz

2.配置mongodb_export服务

cat >>/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=/data/shell/mongodb_exporter \
  --mongodb.uri=mongodb://mongomo:mongomo@10.20.10.50:27017 --web.listen-address=:35117 \
  --collect.database \
  --collect.collection \
  --collect.topmetrics \
  --collect.indexusage \
  --collect.connpoolstats

Restart=on-failure
[Install]
WantedBy=multi-user.target

EOF

账号密码 mongomo

systemctl daemon-reload

systemctl enable mongodb_exporter
systemctl stop mongodb_exporter
systemctl start mongodb_exporter
systemctl status mongodb_exporter

Prometheus端：

vi  /usr/local/prometheus/prometheus.yml

- job_name: mongodb_exporter
  honor_timestamps: true
  scrape_interval: 5s
  scrape_timeout: 5s
  scheme: http
  static_configs:
  - targets:
    - 10xx1:35117
    - 10.xx.xx:35117
 

注意这里的35117，是之前mongodb_exporter的 web listener的端口。

然后：

systemctl stop prometheus.service
systemctl start prometheus.service
systemctl status prometheus.service