Apps, Functions and Containers · 3 November 2026

Health checks while serving

healthPath is now also checked while a copy serves: every 5 seconds, each copy is sent a GET of the path, and a copy that fails 2 consecutive checks (no status under 500 within 2 seconds) receives no requests until it passes 2 consecutive checks. Previously the path was checked only before a copy took its first request. During a staged release that changes healthPath, the service's address checks only that each copy's port accepts a connection until the release completes. A healthPath that does not start with / is checked as /, as the check before the first request already does. A path with characters a URI path cannot contain, such as a space or #, is not sent: the check only confirms that the copy's port accepts a connection.