RE: [users@httpd] Proxy Server to Web Server Ratio

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My question was badly crafted, apologies...

Let me try again with an example:

If I have 50 web sites, each a cluster of 10 physical machines with a web server on each.  Now, I want to place Apache in front of these 50 sites (web server clusters) as a reverse proxy.  What I am trying to figure out is roughly how many physical machines I might need to host an Apache web server for each cluster?

Would 2 physical machines (clustered) handle the throughput for a cluster of 10 web servers?  Is there a 'wet string' guideline to the number of web servers (serving a single site) that can be handled by a single Apache 2 proxy?

It is possible that I have just not understood...

Many thanks for any help.

Kind regards,
--
Viz

-----Original Message-----
From: Boyle Owen [mailto:Owen.Boyle@xxxxxxx] 
Sent: 05 July 2005 08:42
To: users@xxxxxxxxxxxxxxxx
Subject: RE: [users@httpd] Proxy Server to Web Server Ratio

> -----Original Message-----
> From: Veary, Marc, VF UK - Technology (TS)
> [mailto:Marc.Veary@xxxxxxxxxxxxxxxxx]
> Sent: Dienstag, 5. Juli 2005 09:35
> To: users@xxxxxxxxxxxxxxxx
> Subject: [users@httpd] Proxy Server to Web Server Ratio
> 
> 
> Hi All,
> 
> I am new to using Apache as a proxy.  Could someone give me a 
> rough idea
> of how many web servers Apache 2 can proxy?  

As many as there are on the internet.

Apache simply takes incoming requests from the client and re-issues them to whatever proxy is defined in the config rules for the given request...

Reading between the lines, I suspect you are harbouring a misconception about how HTTP operates. It is not a connection-based protocol - it is connectionless and stateless. So your question is not like "how many phone calls can a switchboard handle?", it is more like "how many addresses can the post office deliver to?"

Rgds,
Owen Boyle
Disclaimer: Any disclaimer attached to this message may be ignored. 

> I know this is 
> like asking
> 'How long is a piece of string?', but I need a rough starting point.
> Does anyone know of any stats from testing (mind craft, etc)?
> 
> Kind regards,
> --
> Viz
> 
> 
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