Grafana dashboards for MySQL and MongoDB monitoring using Prometheus

This is a set of Grafana dashboards for database and system monitoring using Prometheus datasource.

• Amazon RDS OS metrics (CloudWatch datasource)
• Cross Server Graphs
• Disk Performance
• Disk Space
• MongoDB Cluster Summary
• MongoDB Overview
• MongoDB ReplSet
• MongoDB RocksDB
• MongoDB WiredTiger
• MongoDB MMAPv1
• MySQL InnoDB Metrics
• MySQL InnoDB Metrics Advanced
• MySQL MyISAM/Aria Metrics
• MySQL Overview
• MySQL Performance Schema
• MySQL Query Response Time
• MySQL Replication
• MySQL Table Statistics
• MySQL TokuDB Graphs
• MySQL User Statistics
• PXC/Galera Cluster Overview
• PXC/Galera Graphs
• Prometheus
• ProxySQL Overview
• Summary Dashboard
• System Overview
• Trends Dashboard

These dashboards are also a part of Percona Monitoring and Management project.

Live demo is available at https://pmmdemo.percona.com/graph/

Setup instructions

Add datasource in Grafana

The datasource should be named Prometheus so it is automatically picked up by the graphs.

Prometheus config

The dashboards use built-in instance label to filter on individual hosts. It is recommended you give the good names to your instances. Here is some example:

scrape_configs:
  - job_name: prometheus
    static_configs:
      - targets: ['localhost:9090']
        labels:
          instance: prometheus

  - job_name: linux
    static_configs:
      - targets: ['192.168.1.7:9100']
        labels:
          instance: db1

  - job_name: mysql
    static_configs:
      - targets: ['192.168.1.7:9104']
        labels:
          instance: db1

How you name jobs is not important. However, "Prometheus" dashboard assumes the job name is prometheus.

Exporter options

Here is the minimal set of options for the exporters:

• node_exporter: -collectors.enabled="diskstats,filefd,filesystem,loadavg,meminfo,netdev,stat,time,uname,vmstat"
• mysqld_exporter: -collect.binlog_size=true -collect.info_schema.processlist=true
• mongodb_exporter: the defaults are fine.

Edit Grafana config

Enable JSON dashboards by uncommenting those lines in grafana.ini:

[dashboards.json]
enabled = true
path = /var/lib/grafana/dashboards

If you wish you may import the individual dashboards via UI and ignore this and the next two steps.

Install dashboards

git clone https://github.com/percona/grafana-dashboards.git
cp -r grafana-dashboards/dashboards /var/lib/grafana/

Restart Grafana

service grafana-server restart

Apply patch (only Grafana 3.x)

If you are using Grafana 3.x you need to apply a small patch on your installation to allow the interval template variable in Step field of graph editor page to get the good zoomable graphs. For more information, take a look at PR#5839.

sed -i 's/expr=\(.\)\.replace(\(.\)\.expr,\(.\)\.scopedVars\(.*\)var \(.\)=\(.\)\.interval/expr=\1.replace(\2.expr,\3.scopedVars\4var \5=\1.replace(\6.interval, \3.scopedVars)/' /usr/share/grafana/public/app/plugins/datasource/prometheus/datasource.js
sed -i 's/,range_input/.replace(\/"{\/g,"\\"").replace(\/}"\/g,"\\""),range_input/; s/step_input:""/step_input:this.target.step/' /usr/share/grafana/public/app/plugins/datasource/prometheus/query_ctrl.js

Update instructions

Simply copy the new dashboards to /var/lib/grafana/dashboards and restart Grafana or re-import them.

Graph samples

Here is some sample graphs.

Submitting Bug Reports

If you find a bug in Percona Grafana Dashboards or one of the related projects, you should submit a report to that project's JIRA issue tracker.

Your first step should be to search the existing set of open tickets for a similar report. If you find that someone else has already reported your problem, then you can upvote that report to increase its visibility.

If there is no existing report, submit a report following these steps:

1. Sign in to Percona JIRA. You will need to create an account if you do not have one.
2. Go to the Create Issue screen and select the relevant project.
3. Fill in the fields of Summary, Description, Steps To Reproduce, and Affects Version to the best you can. If the bug corresponds to a crash, attach the stack trace from the logs.

An excellent resource is Elika Etemad's article on filing good bug reports..

As a general rule of thumb, please try to create bug reports that are:

• Reproducible. Include steps to reproduce the problem.
• Specific. Include as much detail as possible: which version, what environment, etc.
• Unique. Do not duplicate existing tickets.
• Scoped to a Single Bug. One bug per report.