I'm not surprised here to see comments here blaming them for using Gentoo in production, even though I argue that wasn't fully the cause of their outage. Hell, I use Gentoo on my personal boxen because I love it's package management, and even I winced when I read that. "Oh man, I hope they're keeping on top of their system administration. Damn, nope got bit by the libstd++ change, and the recent profile change. This is gonna be painful."
I'm also a fan of Gentoo, but realistically, if they were running Debian or Red Hat or a derivative, they would be able to use the recommended releases directly from Ceph:
My interpretation of the writeup suggests that most of their problems would have been avoided by running the latest supported release of Ceph, on a supported distribution.
I ran Gentoo servers myself for a few years, but I had to give it up when I realized I wasn't getting much benefit for all the extra effort I was putting in. It was a great way to learn how free software packages interact with each other, but it became a fairly significant time sink to rebuild the world every so often.
