Re: libpq heartbeat

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Francisco Olarte <folarte(at)peoplecall(dot)com>
Cc: hubert depesz lubaczewski <depesz(at)depesz(dot)com>, Marcin Giedz <marcin(dot)giedz(at)arise(dot)pl>, "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org>
Subject: Re: libpq heartbeat
Date: 2016-10-27 16:32:54
Message-ID: 3654.1477585974@sss.pgh.pa.us
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Francisco Olarte <folarte(at)peoplecall(dot)com> writes:
> On Thu, Oct 27, 2016 at 5:01 PM, hubert depesz lubaczewski
> <depesz(at)depesz(dot)com> wrote:
>> On Thu, Oct 27, 2016 at 04:43:55PM +0200, Marcin Giedz wrote:
>>> I'm wondering if there is any natural implementation of heartbeats in
>>> libpq library?

>> check tcp_keepalives_* in postgresql.conf

> Isn't this a server setting, and so going to affect every connection,

Yes, but there are equivalent libpq parameters for firing heartbeat
pings from the client side. Those are per-connection.

https://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-PARAMKEYWORDS

regards, tom lane

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