Description of problem: fstat.gluster.org throws up internal server error.
The VM seems to be down, I was able to get a prompt, but nothing more. That's usually the sign of some overload, like fork bomb, lack of memory, etc. A post mortem analysis show this was down since 11h40 (UTC) on the 2 of october, and that the problem was likely lack of memory (cf OOM in dmesg). I did restart the VM to solve the issue, but we may need to 1) add swap 2) add memory.
Has Swap to prevent future hard failures.