Message-ID: <43170ADA.2080002@relevanttraffic.se>
Date: Thu, 01 Sep 2005 16:06:18 +0200
From: Ulrich Wisser <ulrich.wisser@relevanttraffic.se>
Organization: Relevant Traffic AB
User-Agent: Mozilla Thunderbird 1.0.6 (Windows/20050716)
MIME-Version: 1.0
To: Merlin Moncure <merlin.moncure@rcsonline.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Need for speed 3
References: <6EE64EF3AB31D5448D0007DD34EEB3417DD24C@Herge.rcsinc.local>
In-Reply-To: <6EE64EF3AB31D5448D0007DD34EEB3417DD24C@Herge.rcsinc.local>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

Hi Merlin,

> schemas would be helpful.  

right now I would like to know if my approach to the problem makes 
sense. Or if I should rework the whole procedure of import and aggregate.

> Just a thought: have you considered having apache logs write to a
> process that immediately makes insert query(s) to postgresql? 

Yes we have considered that, but dismissed the idea very soon. We need 
Apache to be as responsive as possible. It's a two server setup with 
load balancer and failover. Serving about ones thousand domains and 
counting. It needs to be as failsafe as possible and under no 
circumstances can any request be lost. (The click counting is core 
business and relates directly to our income.)
That said it seemed quite save to let Apache write logfiles. And import 
them later. By that a database downtime wouldn't be mission critical.


> You could write small C program which executes advanced query interface
> call to the server.

How would that improve performance?

Ulrich