On 2016-08-01 17:50:25 +0200, Jens.Wilke@parcIT.de wrote:
> Andres Freund <andres@anarazel.de> schrieb am 01.08.2016 17:39:13:
>
> > Any chance this was a postgres
> > running on a systemd machine with RemoveIPC=true?
>
> Yes, Ubuntu 15.04.
So that's your problem. If you start postgres as a normal user and then
log-out, systemd removes resources postgres needs.