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Re: [Webpush] Receipt subscription follow-up

Martin Thomson <martin.thomson@gmail.com> Thu, 28 April 2016 01:18 UTC

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Date: Thu, 28 Apr 2016 11:18:06 +1000
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From: Martin Thomson <martin.thomson@gmail.com>
To: Brian Raymor <Brian.Raymor@microsoft.com>
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Cc: Costin Manolache <costin@gmail.com>, "webpush@ietf.org" <webpush@ietf.org>
Subject: Re: [Webpush] Receipt subscription follow-up
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On 28 April 2016 at 10:51, Brian Raymor <Brian.Raymor@microsoft.com> wrote:
>
>
> Martin Thomson <martin.thomson@gmail.com> wrote:
>
>> On 28 April 2016 at 10:29, Brian Raymor <Brian.Raymor@microsoft.com> wrote:
>>> PS can already rate control an AS:
>
>> This was about the reverse, having rate control on the delivery of
>> receipts to the AS.  It's possible that a PS could overwhelm an AS
>> with these.
>
> I understand - my point is that the AS is creating its own problem. It's requesting
> too many push messages with receipts and then failing to scale when receiving the
> receipts from the PS. In this case, the AS needs to be encouraged by the PS to slow
> down its rate of requests that are generating those receipts.

It's not that easy.  An AS could send messages out over several time
and still be flooded with receipts in a sudden spike.

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