On Thu, Dec 6, 2012 at 5:56 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> I suspect this action isn't dropping the TCP connection. It's only
> equivalent to a momentary glitch in your network connectivity --- and
> you'd be very unhappy if that caused TCP connections to go down, because
> networks have glitches all the time. Generally, the operating system
> tries hard to prevent applications from even knowing that a glitch
> happened. (Connections will time out eventually if connectivity doesn't
> come back, but typically such timeouts are many minutes. Possibly
> whatever your real complaint is could be addressed by twiddling the TCP
> timeout parameters for the socket.)
Yep. For a better test, try taking the interface down for a good while
(several minutes), or actually shut down the Postgres server at the
other end.
ChrisA
