>but seems like if anyone has scale problems, google would
Google doesn't use Go at such large scale though. Some projects here and there, and most of them small for all I've read. The most publicly celebrated ones being a MySQL front-end for YouTube and a caching-layer (?) for Google Downloads. Not exactly earth shattering applications.
My understanding is that beyond the examples you talk about that go is being used extensively in google as a backend glue language for automation and services.
Google doesn't use Go at such large scale though. Some projects here and there, and most of them small for all I've read. The most publicly celebrated ones being a MySQL front-end for YouTube and a caching-layer (?) for Google Downloads. Not exactly earth shattering applications.