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From Alan Carroll <>
Subject Re: Problems with caching / retrieving from cache from a particular origin
Date Tue, 01 Mar 2016 17:06:51 GMT

That request is a heartbeat request, not your request. You can tell by this line

[Mar  1 16:44:33.000] Server {0x2b927cbd9440} DEBUG: <
(url_describe)> (http)     PATH: "synthetic.txt", PATH_LEN: 13,

"synthetic.text" is the magic path used to indicate the heartbeat request. These happen about
every 10 seconds so you need to ignore them. There is a special check for that request that
generates the "Will NOT do cache lookup" message. Look forward or back in the log file to
try to find your request, which should be easy to find if you know the path or host.

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