I guess this depends on the status of the Apache httpd workers. Like are they stuck in IO to the /mnt/koji scratch location, or something else?
Unfortunately it's not secure to publicly display Koji's in-flight HTTP requests with mod_status, since the URLs contain the authenticated session information, but that's where I'd go for the next level of investigation if this happens frequently.
Maybe we need a separate utility in kojiweb to sanitize the hub's mod_status' output for the public and display "what's the hub doing now".
- Ken