Topic: Limit simultaneous requests per user on apache?

[dke]

Hi,

I've noticed that on Apache with mpm_winnt (windows NT) each user is limited to 4 requests simultaneously. Is there way to change this value?

I'd like to lower it as my server can barely handle over 20 requests at an efficient rate (high MS problems above that) and each user getting 4 requests simultaneously is a disaster, load time for pages with thumbs would be slower with 1 request, but it would at least be a solid progress.

I've tried google and the apache documentation without any luck, so i hope you guys can help me!

Thanks in advance.

EDIT: Found out this was related to Keepalive, turned it off and i only have 1 request per user now simultaneously, i guess this setting is good for pages with REAL high load, but for my page with so much dynamic stuff it seems better to leave it off.

[tdonovan]

Usually it is the browser which limits the simultaneous requests per user - not Apache.
RFC 2068 and RFC 2616 recommend two for HTTP 1.1:

A single-user client SHOULD maintain AT MOST 2 connections with any server or proxy.

but many HTTP 1.0 browsers use four connections.

Turning keepalive off causes the connection to be closed after each request, so it will usually appear to be one simultaneous request unless you look at the exact instant that two requests are being served.

If this is still Coppermine you are discussing, it might be better to keep it all in your original post for continuity.

Out of curiosity I downloaded Coppermine and gave it a try. I see pretty much the same performance issues as you do. I'll post the details as a reply to your original post.

-tom-