Re: hyper slow after upgrade to 8.1.4 - Mailing list pgsql-performance

From Michael Fuhr
Subject Re: hyper slow after upgrade to 8.1.4
Date
Msg-id 20060713135421.GA79008@winnie.fuhr.org
Whole thread Raw
In response to Re: hyper slow after upgrade to 8.1.4  ("Medora Schauer" <mschauer@fairfield.com>)
Responses Re: hyper slow after upgrade to 8.1.4  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-performance
On Thu, Jul 13, 2006 at 08:22:46AM -0500, Medora Schauer wrote:
> Can it be that the connection delay is because first an IPv6 socket is
> trying to be established and when that fails an IPv4 socket is created?

A sniffer like tcpdump or ethereal might reveal why connecting is
so slow.  The problem might be with DNS queries for AAAA (IPv6)
records prior to queries for A (IPv4) records; see this thread from
almost a year ago:

http://archives.postgresql.org/pgsql-general/2005-08/msg00216.php

--
Michael Fuhr

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