Confluence 8.0 request timeout transition and async indexing cleanup boundary
Confluence 8.0 introduced the system property confluence.request.timeout.seconds (default 300) to cap how long Tomcat keeps an HTTP request open before returning a 504 Gateway Timeout. When that timeout fires, the HTTP thread is aborted, but asynchronous tasks spawned by the request—such as content indexing or search reindex—are not automatically interrupted