Uptime monitor

Butler Auth can optionally log how long it’s been running and how much memory it uses. The memory usage can also (optionally) be stored to an InfluxDB database, for later viewing/alerting in for example a Grafana dashboard.

What’s this?

In some cases - especially when investigating issues or bugs - it can be useful to get log messages telling how long Butler Auth has been running and how much memory it uses.

This feature is called “uptime monitoring” and can be enabled in the main config file.

The logging interval is configurable, as is the log level required for uptime messages to be shown.

The memory usage data can optionally be written to InfluxDB, from where it can later be viewed in Grafana.
If the specified InfluxDB database does not exist it will be created. The same is true for the retenion policy.

Select a reasonable retention policy and logging frequency!
You will rarely if ever need to know how much memory Butler Auth used a month ago… A retention policy of 1-2 weeks is usually a good start, with logging every few minutes.

Settings in main config file

  # Uptime monitor
    enable: false                    # Should uptime messages be written to the console and log files?
    frequency: 300000                # Milliseconds
    logLevel: info                   # Starting at what log level should uptime messages be shown?
      enable: false
      hostIP: <IP or host name>
      hostPort: 8086
        enable: false
        username: user_joe
        password: joesecret
      dbName: butlerauth
      instanceTag: DEV              # Tag that can be used to differentiate data from multiple Butler Auth instances
      # Default retention policy that should be created in InfluxDB when Butler Auth creates a new database there. 
      # Any data older than retention policy threshold will be purged from InfluxDB.
        name: 10d
        duration: 10d

Last modified 0001.01.01