Very slow gerrit, often failing to load and/or returning "Server Unavailable"

Hi infra, getting as per $SUBJ since early this morning. It seems to affect other services too (e.g. mail), but my connection seeems generally OK, so I can't really tell if it is me or gerrit. Is this a known issue? Anyone else experiencing this? Thanks, -- Francesco Romani Senior SW Eng., Virtualization R&D Red Hat IRC: fromani github: @fromanirh