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About the Logs page
Last updated 2023-11-30
Located under the Observability tab in the web interface, the Logs page gives you access to the Compute log tailing feature, which allows you to view custom log messages from your Compute application. Specifically, Log Tailing streams your service's log output to the Fastly web interface so you can respond quickly when debugging your application without setting up a third-party logging tool.
Before you begin
Be sure you know how to access the web interface controls before learning about the information you'll encounter here.
About the Logs page
The Logs page live streams the log outputs for a compute service. Streamed outputs can include any output sent to the standard output stream (stdout
) and the standard error stream (stderr
), as well as any runtime errors encountered by the application. For each log, the Logs page displays the following information:
- Date (UTC): a UTC timestamp of when the request occurred.
- Request ID: a unique identifier applied to the request.
- Event: the event type, either
stdout
orstderr
. - Message: the message included in the request.
A series of controls on the Logs page allow you to interact with and refine the logs. Specifically:
- the Service menu allows you to specify the Compute service that the logs are from. From the menu, you can search for a service by ID or name.
- the Events menu allows you to limit the displayed logs to a specific stream (e.g.,
stdout
andstderr
). - the Pause button allows you to pause the live stream of Compute logs. Once paused, you can resume live stream by clicking Live.
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