How to monitor MongoDB replica set using Prometheu

How to monitor MongoDB replica set using Prometheus

There are many ways to monitor MongoDB replica set:

• Using Zabbix template to view MongoDB data (Zabbix+grafana)
• MongoDB official own but now charge for
• Prometheus collects data through Mongodb-exporter and then uses Grafana to display data (Prometheus+grafana)
• etc...

Install Prometheus

• See detail from official:https://prometheus.io/docs/introduction/first_steps/
• How to install Prometheus on Docker on ubuntu14.04:https://www.digitalocean.com/community/tutorials/ how-to-install-prometheus-using-docker-on-ubuntu-14-04
• Pull Docker Images From:https://store.docker.com/community/images/prom/prometheus

Simple Configure file

?  prometheus-2.3.1.linux-amd64 cat prometheus.yml|awk ‘{if($0 !~ /^$/ && $0 !~ /^#/) {print $0}}‘
global:
  scrape_interval:     15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
  # scrape_timeout is set to the global default (10s).
alerting:
  alertmanagers:
  - static_configs:
    - targets:
      # - alertmanager:9093
rule_files:
  # - "first_rules.yml"
  # - "second_rules.yml"
scrape_configs:
  # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
  - job_name: ‘prometheus‘
    # metrics_path defaults to ‘/metrics‘
    # scheme defaults to ‘http‘.
    static_configs:
    - targets: [‘localhost:9090‘]
  - job_name: ‘node-exporter‘
    static_configs:
    - targets: [‘localhost:9100‘]
  - job_name: ‘mongodb-exporter‘
    static_configs:
    - targets: [‘localhost:9001‘]

Install Node-exporter

• Exporters and intergrations:https://prometheus.io/docs/instrumenting/exporters/

Install Mongodb-exporter

• Exporters and intergrations:https://prometheus.io/docs/instrumenting/exporters/
• Mongodb-exporter:https://github.com/dcu/mongodb_exporter
• Download Mongodb-exporter release:https://github.com/dcu/mongodb_exporter/releases/download/v1.0.0/mongodb_ Exporter-linux-amd64

Run Mongodb-exporter

?  prometheus ./mongodb_exporter -mongodb.uri mongodb://192.168.152.128:27017,192.168.152.128:27018,192.168.152.128:27019
Listening on :9001 (scheme=HTTP, secured=no, clientValidation=no)

You also can run the multi mongodb-exporter process to get the metrics of the simple MongoDB instance. If so. You should add multi job_name in Prometheus.yml. You can monitor every simple MongoDB instance details in Grafana by setting dashboard variables.

Insatll Grafana

• See Official docs:http://docs.grafana.org/installation/debian/

Configure DashBoard

• Download Grafana Dashboard template json file:https://grafana.com/api/dashboards/2583/revisions/2/download

How to monitor MongoDB replica set using Prometheu