Re: libpq - prevent automatic reconnect

From: Chris Angelico <rosuav(at)gmail(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: libpq - prevent automatic reconnect
Date: 2012-12-06 21:43:58
Message-ID: CAPTjJmqcWP6iVrpGa+we+CY-vKOV8iYZO+sJd9KP0fizHnv_oA@mail.gmail.com
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On Thu, Dec 6, 2012 at 5:56 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)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

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