Scalingo lets you create alerts based on an application metric. When the metric’s value matches a configured condition for a selected duration, Scalingo sends a notification to selected app notifiers.

Creating Alerts

From the Dashboard

• From your web browser, open your Scalingo dashboard.
• Select the app for which you want to create an alert.
• Click the Settings tab.
• In the settings menu, select Alerts.
• Click Add.
• Configure the trigger conditions, including the container type, metric, limit, comparison, and duration before trigger.
• Select the notifier(s) to use when the alert is triggered.
• Click Finish.

Alert Requirements

An alert requires at least one notifier and a trigger condition:

Container type

Can be any container type of an application (e.g. web, clock…).

Metric

• CPU: percentage of CPU consumption
• RAM: percentage of memory consumption
• Swap: percentage of swap consumption
• Response time: 95th percentile of the requests response time
• 5xx errors: amount of HTTP errors (status code ranges from 500 to 599)
• RPM: requests per minute (RPM) received by your application.
• RPM per container: If your application is scaled on multiple containers, the RPM per container divides the RPM of the application by the amount of containers.

Limit

Any float value.

Comparison

Send the alert when the metric value is above or below the limit.

Notifiers

List of app notifiers the alert sends a notification to.

Duration before trigger

Send the alert when the metric value matches the configured condition for the specified duration. For example, specifying 4 minutes means that the alert is triggered if the condition is matched for 4 consecutive minutes.

Sending alert notifications

Alerts use the same notifiers as application events. An alert must use at least one notifier. Each app has a default notifier.

For more information, please visit the page dedicated to app notifiers.

Alert Events

Every time an alert is triggered, an event is created. This event appears on the application’s Activity. The user responsible for the operation is labeled scalingo-platform.

The alert-related event types are: