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From Jignesh Badani <>
Subject [users@httpd] Re: Dynamic refreshing of Proxy Rules
Date Sat, 25 Jun 2005 01:35:46 GMT
Thanks Joost,

I am not so confident about "apachectl -k graceful". I was actually 
referring to something within the Apache runtime. The parent process polls 
the config files or a file with just proxy rules for changes and 
communicates it to the child processes.

But since you have mentioned it, are you aware of any medium to big site 
using "apachectl -k graceful " on a daily basis and during peak hours.

Also we are using a Netegrity Siteminder agent and they do not 
recommend/support  apache recycle using graceful.

About the DNS round-robin, well we could have used it if it was smart 
enough to route a subsequent user request to the same backend server which 
established the user session in the first place. I mean load-balancing and 
routing request based on session information in the request header (or  a 
session cookie).

Thanks again.

"Joost de Heer" <> 
06/24/2005 02:18 PM
Please respond to

"Jignesh Badani" <>
Re: Dynamic refreshing of Proxy Rules

> It would be nice to have Apache reload proxy rules at regular
> (configurable) intervals w/o the need to bounce the webserver.

apachectl graceful in the crontab?

> Another thing, I desire in mod_proxy is the ability to specify a 
> backend (remote) host, in case one host does not respond or is too busy.
> Ideally it would  be great to have some kind of load-balancing proxy 
> failover) solution so that we do not have to rely on external
> load-balancers.

reverse-proxy to a DNS-name, and let DNS do the load balancing.


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