Note: This document only applies to some of our larger existing customers whose accounts were too large to use the automated update scripts when Alert Policies were rolled out.
When an event triggers an alert, the alert summary information automatically appears on your New Relic dashboard's Recent Events list. For details about the alert, including history and charts, click the alert's corresponding link. From the details page you can also acknowledge that you received the alert notification.
Tip: To filter the Recent Events list to a specific type of event, click the corresponding icon. You can also view dashboard details about alerts, errors, and deployments by selecting Applications > (selected app) > Events or by selecting Tools > Alerts.
When an Apdex or Error Rate problem triggers an application alert, New Relic sends an initial notification. If availability monitoring detects a site outage while the alert is still open, it escalates the problem to a Downtime alert and sends another notification. When all Critical or Downtime problems are resolved, New Relic sends one final, closing notification.
New Relic does not immediately create problem events when a threshold is crossed. For example, if your Apdex score goes below your Critical threshold, New Relic does not immediately turn your app's traffic light to red or send an alert. This helps avoid excessive notifications and "flapping" of alerts. Depending on the alert type, it usually takes a couple of minutes before New Relic determines the problem is not just a temporary spike and changes the traffic light to red.
New Relic requires a minimum data sample before triggering problem events. For example, evaluating alerts for idle applications often results in excessive events and messages. If your application is getting fewer than ten requests per minute, it does not trigger an Error Rate or Apdex alert.
Note: New incidents are created for an application only when there are no currently open incidents. If you want to test your alert thresholds:
Optional: From the alert's details page, click Acknowledge alert. This sends an email to your team that you have acknowledged the event. New Relic automatically records your name in the alert and lists it on the alert's page.
Tip: The New Relic for iOS app also includes an Acknowledge button for email and push notifications.
New Relic does not trigger alerts for response times. We believe that the Apdex score provides a better reflection than average response time for how your application performs. For example, average response times can be skewed by outliers, while the Apdex score gives a more accurate assessment of acceptable response time rates that your users experience.
Alerts on Apdex scores are almost always meaningful and deserve a higher level of attention. For more information, see Viewing your Apdex score.
Additional documentation resources include:
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