Re: Blocking connection and timeout problem

Taking the risk of running offtopic: That value is defined in Solaris as
well. Use:

    ndd -get /dev/tcp tcp_keepalive_interval

to retrieve it, and

    /usr/sbin/ndd -set /dev/tcp tcp_keepalive_interval 3600000

to set it to one hour. Check
http://sunsolve.sun.com/search/document.do?assetkey=1-30-2876-1
for more information.

Regarding the possibility of heartbeats in postgres ... have no idea how
wise would it be ... there's people more qualified here that could
answer that ;-D

Hope this helps, anyway.
Regards.
Dario





On Fri, 2005-08-05 at 09:43 +0200, KÖPFERL Robert wrote:
>
> Erm, no, it is a Solaris box.
> And as I could experience, there are rather long timeouts in solaris' tcp
> implementation.
>
> Thanks anyway.
>
> What about Postgres. Wouldn't it be better to have postgres sending keep
> alive or heart beat packages during that time?
>
> |-----Original Message-----
> |From: Dario Brignardello [mailto:dbrignar@uolsinectis.com]
> |Sent: Mittwoch, 03. August 2005 19:33
> |To: KÖPFERL Robert
> |Cc: pgsql-admin@postgresql.org
> |Subject: Re: [ADMIN] Blocking connection and timeout problem
> |
> |
> |Assuming you are on a linux box (Not sure if it's stated in your mail,
> |sorry if I miss that) you could set
> |
> |/proc/sys/net/ipv4/tcp_keepalive_time
> |
> |to a lower value. That should do the trick :-)
> |
> |
> |Hope it helps.
> |
> |Greetings
> |Dario.
> |
> |
> |
> |On Wed, 2005-08-03 at 16:48 +0200, KÖPFERL Robert wrote:
> |>
> |>
> |>
> |> |-----Original Message-----
> |> |From: Tom Lane [mailto:tgl@sss.pgh.pa.us]
> |> |Sent: Mittwoch, 03. August 2005 16:38
> |> |To: KÖPFERL Robert
> |> |Cc: pgsql-admin@postgresql.org
> |> |Subject: Re: [ADMIN] Blocking connection and timeout problem
> |> |
> |> |
> |> |=?iso-8859-1?Q?K=D6PFERL_Robert?=
> |<robert.koepferl@sonorys.at> writes:
> |> |> Why is that? Why isn't client A's transaction detected as dead ?
> |> |
> |> |It will be eventually, when the TCP connection times out.
> |The standard
> |> |timeout is generally an hour or two :-(
> |>
> |> Seems not like so. I waited for two hours and it still existed.
> |>
> |> But non-the-less. Can this timeout be configured to be less?
> |>
> |> |
> |> |            regards, tom lane
> |> |
> |>
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> |--
> |Atte:
> |Dario Brignardello
> |Planificacion y Desarrollo
> |Tecnologia
> |UOL Argentina S.A
> |
> |Florida 537 Piso 6, Buenos Aires, Argentina
> |+54-11-4321-9110 ext 2533
> |PGP public key: http://webs.uolsinectis.com.ar/dbrignar/pgp.html
> |
>
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