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From Jim Jagielski <>
Subject Re: ping for http in mod_proxy
Date Wed, 13 Feb 2008 17:50:56 GMT

On Feb 13, 2008, at 12:22 PM, Akins, Brian wrote:

> On 2/13/08 11:07 AM, "Jim Jagielski" <> wrote:
>> I've started looking at adding "ping" support for
>> mod_proxy_http to complement whats in mod_proxy_ajp...
>> The idea is to send a simple OPTIONS * to the backend
>> and hope for a reply.
> Would it be more useful to have active healthchecking to backend  
> servers?
> Ie, periodically hit a url on each origin and mark them up/down  
> based on
> response.  Only send traffic to up servers.  I think mod_backhand does
> something similar but much more complex (?).
> I had started looking to add this to balancer, but I have no time.

That was the other option as well... some sort of hearbeat
loop which updates worker status. Still, we get into the issue
with how much of "how proxy connects to and communicates with
the backend" to honor or work around.

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