From: Tom Lane <tgl@sss.pgh.pa.us>
To: Dmitri Girski <mitek17@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: pg_connect takes 3.0 seconds
Date: Tue, 05 Jan 2010 00:14:09 -0500
Message-ID: <28249.1262668449@sss.pgh.pa.us> (raw)
In-Reply-To: <daed64561001041812s602a3098l686f630d6448835f@mail.gmail.com>
References: <daed64561001041812s602a3098l686f630d6448835f@mail.gmail.com>
Dmitri Girski <mitek17@gmail.com> writes:
> I am running a PostgreSQL server 8.3.5 with a pretty much standard config.
> The web application server which runs Apache 1.3/PHP2.9 has an intermittent
> problem:
> pg_connect takes exactly 3.0 seconds. The usual connection time is 0.0045.
> The long request happens at approximate rate 1:100.
Sounds a lot like a dropped-packets problem. The exact timing would be
explained if that is the retransmit timeout in your client-side TCP
stack. If that's what it is, you need some network engineers, not us
database geeks ...
regards, tom lane
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Subject: Re: pg_connect takes 3.0 seconds
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