Re: WebOpac slowness and WAM Proxy?

[Jean-Marc Edwards <Jean-Marc.Edwards@xxxxxxxxxx>]

We have experienced a similar problem for a certain number of licensed 
databases. We use the III proxy rewrite method. 

However we do not have a slowness problem with the WebOPAC. It works fine.

Because of the slowness problem with licensed databases accessed thru the WAM 
rewrite proxy, we have decided to create a separate database in PHP/MySQL which 
contains all our web pages about our licensed database. If the user comes from 
within our institution IPs they are presented with a URL that is not proxied. 
If the user comes from outside our institution we give them the WAM proxy 
rewrite URL. 

This means that our internal users do not experience the slowness problem, but 
our remote users may. Also it means that stats collected by the WAM only 
reflects remote connexions.

We should be launching our PHP/MySQL database application by next week. 

This is how we get around this problem. At least for our internal users.

The idea of presenting a different URL for external and internal users was an 
idea that we got only when we discovered the slowness problem of the rewrite 
proxy with certain licensed databases.

Jean-Marc Edwards
Concordia University (Montreal)
Canada



Selon rosy gomez <rosy.gomez@xxxxxxxxxx>:

> =====================
> Subject: WebOpac slowness and WAM Proxy?
>  
> We are a large university library system (+80,000 users) running
> Millennium on a server for all libraries. Recently we activated the WAM
> Proxy product and are routing all of our licensed databases thru it.
>  
> About 3 weeks ago, when patrons started using the WebOPAC and licensed
> databases, the services slowed down heavily. We have had response times
> of up to 30 seconds (about 3-7 seconds average) between searches and
> record displays. We estimate around 300-500 simultaneous users using the
> WebOpac...
>  
> Is there someone who has had this same experience? What was the outcome?
> How did you go about diagnosing the problem? 
>  
> Also, does the WAM Proxy product generate a heavy server load?
> 
> _ alejandro garza __________________
>    Biblioteca Digital
>    Direccion de Bibliotecas, Tec de Monterrey
>    http://biblioteca.itesm.mx/
> __________________ ___ __ _  _   _     _      _            _
> 
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-- 
Jean-Marc Edwards