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Subject:	Re: setup 2.878 only processes one site
To:	cygwin AT cygwin DOT com
References:	<dbb0d48f-e602-f202-6573-2d900728d091 AT acm DOT org> <7d6dc5d3-e368-a513-d04b-58410da7152b AT dronecode DOT org DOT uk> <f2f46c8a-b634-aba4-c852-1d389be7a5dd AT acm DOT org> <157e3495-e031-0637-faf9-1d0813ece56d AT dronecode DOT org DOT uk> <fbf93978-1431-8994-d137-090e16e4c71f AT acm DOT org>
From:	Jon Turney <jon DOT turney AT dronecode DOT org DOT uk>
Cc:	David Rothenberger <daveroth AT acm DOT org>
Message-ID:	<4e36141b-c287-35ea-39e0-227e4353c25c@dronecode.org.uk>
Date:	Thu, 18 May 2017 13:23:00 +0100
User-Agent:	Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0
MIME-Version:	1.0
In-Reply-To:	<fbf93978-1431-8994-d137-090e16e4c71f@acm.org>

On 17/05/2017 21:45, David Rothenberger wrote:
> Jon Turney wrote:
>> On 17/05/2017 18:06, David Rothenberger wrote:
>>> Jon Turney wrote:
>>>> On 17/05/17 00:14, David Rothenberger wrote:
>>>>> When I use the new Direct Connection option in setup 2.878, it appears
>>>>> that setup only downloads the setup.xz file from one of the three
>>>>> sites
>>>>> I have selected.
>>>>
>>>> Something which might give this impression is that setup will now
>>>> cache setup.xz, and only download it if it has changed.
>>>
>>> I think you nailed it. I tried again this morning and the first time I
>>> ran setup, it did contact our local site, but it did not on subsequent
>>> runs (even to see if the file has changed). I then modified our web
>>
>> This would be very bad, if true.  Are you sure that we aren't
>> contacting the server at all? (such requests might not be logged in
>> some configurations)
>
> Yes, I'm sure. I verified our web server logs requests with the
> If-Modified-Since header. Also, I used wireshark to confirm there was no
> request at all to our web server.

Hmm... In my testing I saw requests with If-Modified-Since: and 
If-None-Match: headers being sent and a 304 Not Modified response being 
sent.

I added INTERNET_FLAG_RESYNCHRONIZE, which looks like it might be needed 
to do the right thing if the server doesn't send an ETag header, and 
made another build.

https://cygwin.com/setup/setup-2.878-4-g582a35.x86.exe
https://cygwin.com/setup/setup-2.878-4-g582a35.x86_64.exe

Perhaps you could try that and see if it improves things?


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