Can you confirm the other endpoint of the connection? The database may be on the compute tier, but the initiant may be on another machine (so you'd see no corresponding local process for it besides the postgres process) The Web Application server keeps a pool of connections open at all times, user activity or not. I think if you shut the web application server down as an experiment you'd see them go away, but if that's what you're seeing, it's expected.  ... View more