Empty content warning - Amazon Managed Service for Prometheus

Empty content warning

When the log contains the following warning

{ "workspaceId": "ws-efdc5b42-b051-11ec-b123-4567ac120002", "message": { "log": "Message has been modified because the content was empty." "level": "WARN" }, "component": "alertmanager" }

This means that the Alert manager template resolved the outbound alert to an empty message.

Action to take

Validate your Alert manager template and ensure that you have a valid template for all receiver pathways.