That change doesn't make any difference...same behavior.
I don't think it's a limit of QNAM since just checking the http only box makes
it work flawlessly. Same # of requests.
So it must have something to do with SSL.
I've been messing with this most of the day and can't make sense out of it. It
sounded like the limit of 6 connections might have been it but the http only
disproves that. QNAM is apparently running 6 simultaneously and just queues
the rest.
So the delay is, so far, the one solution that works.
de Mke W9MDB
From: Bill Somerville <[email protected]>
To: [email protected]
Sent: Saturday, December 17, 2016 5:54 AM
Subject: Re: [wsjt-devel] Sample Downloader
On 17/12/2016 06:47, Black Michael wrote:
> The packet count from a windump capture shows 11 small transactions
> and 6 larger ones as you would expect -- it doesn't include the
> directory download...capture was started after the window was opened.
> But I don't see a difference for a set of 5.
Hi Mike,
another clue that may help. The RemoteFile class reduces network traffic
by only doing an HTTP HEAD request for each request and only if the
response does not turn out to be a redirect or error does it go on to do
a GET request. That is what you are seeing here, 11 HTTP HEADrequests
followed by the first 6 HTTP GET requests. If you used the generic
mirror server then I would expect more small transactions as the
redirects are followed using just HEAD requests.
Although it would be a small amount duplication of work it might be
interesting to only use GET requests. At around line 129 in
SampleDownlaoder/RemoteFile.cpp change:
network_manager_->head (request);
to:
network_manager_->get (request);
and see what happens.
73
Bill
G4WJS.
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