Re: [quicwg/base-drafts] Lessen the divergence from the HTTP/2 prioritization scheme by requiring all PRIORITY frames to be sent on the control stream (#2754)

ianswett <> Wed, 05 June 2019 01:57 UTC

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Subject: Re: [quicwg/base-drafts] Lessen the divergence from the HTTP/2 prioritization scheme by requiring all PRIORITY frames to be sent on the control stream (#2754)
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@kazuho sorry for the confusion, I was attempting to say that HTTP/3 priorities were different from HTTP/2 priorities, and that was a negative.  I just corrected my comment to say HTTP/3.

@LPardue your concerns are well-founded, but I think that's an existing problem and not a result of a recent change?  I previously mentioned(verbally) that tree maintenance should be a longer period of time(ie: 3 MSL ?), but I realize even that may not be sufficient for QUIC and instead we should use something like 3*PTO?

I also think attaching streams to streams is inherently dangerous and much more dangerous in QUIC than HTTP/2, which is why I want to change HTTP/3 priorities to never have streams depend upon streams.

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