Re: PostgreSQL keepalives help

From: Richard Huxton <dev(at)archonet(dot)com>
To: Kananda <Kananda(at)stepsoftware(dot)com(dot)br>
Cc: "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org>
Subject: Re: PostgreSQL keepalives help
Date: 2010-07-30 13:51:51
Message-ID: 4C52D8F7.6020705@archonet.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-admin pgsql-general

On 29/07/10 21:16, Kananda wrote:
> I need the records are free for edit, in few minutes. Therefore I set
> the KEEPALIVE configuration in my "postgresql.conf":

> tcp_keepalives_idle = 60 # TCP_KEEPIDLE, in seconds;
> tcp_keepalives_interval = 60 # TCP_KEEPINTVL, in seconds;
> tcp_keepalives_count TCP_KEEPCNT = 5 #;

If this is actually what you have in your file, you have an error in
your count setting.

Try "show tcp_keepalives_count;" and so on - just check they're set as
you expect them to be. If they have the right values, put wireshark or
some other network monitor onto the connection and see if any packets
are being sent back and fore while there is no real traffic.

Oh, and please don't cross-post to multiple lists (particular
-cluster-hackers - can't see the relevance of that).

--
Richard Huxton
Archonet Ltd

In response to

Browse pgsql-admin by date

  From Date Subject
Next Message Bryan Payne 2010-07-30 14:39:40 Autovacuum missing tables
Previous Message Kananda 2010-07-30 11:58:10 RES: [GENERAL] PostgreSQL keepalives help

Browse pgsql-general by date

  From Date Subject
Next Message Tom Lane 2010-07-30 14:08:32 Re: Comparison of Oracle and PostgreSQL full text search
Previous Message Greg Smith 2010-07-30 13:17:16 Re: Which CMS/Ecommerce/Shopping cart ?