Alert history

Reports generated in Energy Monitor can be saved for a later use in a dedicated menu.

Enter “Report” -> “Alert History”

Alert_history

List of alerts is made up of several parameters:

- Time the alert occured

- Type of alert

- Host involved

- Service involved

- State type

- Details about the alert

Alert_history

Controls

Changing pages

You can change pages using the arrows.

Alert_history

Adding comments

It is possible to leave a note next to an alert by clicking the “Book” icon.

Alert_history Alert_history

Changing setings of the list

List of alerts can narrowed down to defined parameters:

Alert_history Alert_history

Note:

Brief explanation of diferent states:

  • Soft states

    • Soft states occur when a host or service returns a non-OK/non-UP status however, number of tries, specified, hasn’t been reached yet. Essentially this is a status that shows that Energy Monitor tries to determine if there indeed is a problem, whether notification should be send.

  • Hard states

    • Hard states occur when the number of tries during soft states have been reached and status of the host or service hasn’t changed. Hard states are confirmed issues, notifications are sent in accordance to event handlers defined per service.

  • Flapping

    • Flapping occures when a host’s or a service’s status fluctates unnaturally, this normally causes “notification storms”. Fluctuating state prevents them, by suppressing sending problem and recovery notifications, sending simple “flapping start” and “flapping stop”.

    Flapping is calcaulated as last 21 checks and weighted percentage of these state changes. Each host has configured “high threshold” and “low threshold”, if fluctuations exceed that “high” setting, the host/service receives the “flapping status”. Analogously if the percent change falls below “low” setting, flapping will stop.

    Flapping threshold are set either globally or per host/service.

    Flap detection thresholds can be globally set or customized per host/service. You can also specify which states to include in flap detection using the flap_detection_options directive. “flap_detection_options” governs this.