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From Leif Hedstrom <>
Subject Re: Collapsed Forwarding not work
Date Tue, 15 Oct 2013 02:30:56 GMT

On Oct 14, 2013, at 6:51 PM, Chu Duc Minh <> wrote:

> Yes, object is cacheable and not in cache. I also configured:
> CONFIG proxy.config.http.cache.required_headers INT 0
> From the second run test, it does not request to origin any more. But I want to configure
ATS to reduce request/connection number used to get content from origin when object was not
in cache (for example: cold start).


CONFIG proxy.config.http.cache.max_open_read_retries INT 5
CONFIG proxy.config.http.cache.open_read_retry_time INT 10

That would stall subsequent requests on a total cache miss for up to 50ms. Note that if you
put this in records.config, it applies to all requests, which can be very detrimental for
non-cacheable content. You are best off turning this on via remap.config or plugins such that
it only applies for content which you know has reasonable chance of being cacheable.

— Leif

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