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From John Rushford <>
Subject Re: Question about parent.config
Date Mon, 11 Jan 2021 19:05:07 GMT
Leif is correct, you should look at using the cache_key plugin to generate
a string that is used to lookup parents from it's hash.  With that said,
the string is hashed as is the path string and the hash is used to lookup
parents.  If you're trying to select specific parents based upon some path
element that is not supported.

On Mon, Jan 11, 2021 at 11:26 AM Leif Hedstrom <> wrote:

> On Jan 11, 2021, at 11:22 AM, Nick Dunkin <> wrote:
> Hi all,
> I wish to use parent.config to control parent selection based on path
> elements in the client URL.  I know this is possible with the *url_regex* primary
> qualifier, however my question is as follows:
> The URL path element in question will be in the client request URL *but* will
> be dropped (by a custom plugin) from the URL before the request is made to
> the parent.  Does anybody know if the *url_regex *qualifier applies to
> the full original client URL,  or to the URL that is imminently about to be
> pulled from the parent.  If it’s the latter and there’s anything I can do
> in the custom plug-in to make this work more as I would like it, then
> please let me know.
> Should be on the URL as it goes to the origin. But, I think (as of ATS
> 9.0.x?) that you can use the cache_key plugin to change the effective URL
> that is being used for parent selection? I haven’t tested / played with
> that though, John and Vijay might know?
> — Leif

John Rushford

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