Basic Guidance for Monitoring your Notifications Topics

This guide shows how you can use a simple email alert to monitor the status of your Oracle Notifications Service (ONS) Topics.

For more details, refer to the technical documentation.

Create a topic and a subscription for the Notification Service

From the OCI Console navigation menu, select Application Integration, and then select Notifications
Click Create Topic and create a topic with my_ons_status name
Choose your topic, click Create Subscription and use the following example:
- Protocol: Select Email
- Email: Enter your email address
The subscription will be created in "Pending" status. You will receive a confirmation email and will need to click on the link in the email to confirm your email address.

From the navigation menu, select Application Integration, and then select Notification
Choose the notification topic that you want to monitor and click on Metrics link under Resources in the left navigation pane
From the chart that you want to add the alarm e.g. "Failed Messages Count", click on Options and Create an Alarm on this Query
Add a name and on Notification select Destination service as Notifications service, select the compartment your_compartment, and select Topic as my_ons_status

From the navigation menu, select Monitoring, and then select Alarm definitions
Click Create Alarm and use the following example:
- Alarm Name: my_ons_status
- Alarm severity: Critical
- Alarm body: OCI Alarm: my notification
On Metric description select the compartment your_compartment, select Metric namespace as oci_notification, Metric name as FailedMessagesSize, Interval as 1m, and Statistic as Sum
On Trigger rule select Value greater or equal than 1
On Notification select Destination service as notification service, select the compartment your_compartment, and select Topic as my_ons_status