Grafana Cloud

Inspect logs

Logs are messages you can add to your test script to help you debug tests. You can use the following methods:

  • console.log()
  • console.warn()
  • console.error()
  • console.debug()
    • Only shown when running k6 with the -v/--verbose flag.

To view all the logs for a test run, click the Logs tab. Depending on the method you’re using, a green, yellow, or red marking is displayed next to each log.

You can select a log message to expand it and see more details such as:

  • instance_id
  • level
  • lz (load zone)
  • source
  • test_run_id

You can also filter the list by using:

  • Filter: Filter by text in the log message.
  • Level: Choose from the different level options.
    • Info: console.log and
    • Debug: console.debug.
    • Warning: console.warning.
    • Error: console.error.
  • Load zone: Choose from the different load zones used in the test run.