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Re: [quicwg/base-drafts] Only applications know what can be retried (#2460)

Mike Bishop <notifications@github.com> Wed, 13 February 2019 18:54 UTC

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Date: Wed, 13 Feb 2019 18:54:28 +0000
From: Mike Bishop <notifications@github.com>
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Subject: Re: [quicwg/base-drafts] Only applications know what can be retried (#2460)
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MikeBishop commented on this pull request.



> @@ -2211,7 +2211,9 @@ endpoint.  An endpoint that sends packets near the end of the idle timeout
 period of a peer risks having those packets discarded if its peer enters the
 draining state before the packets arrive.  If a peer could timeout within an
 Probe Timeout (PTO, see Section 6.2.2 of {{QUIC-RECOVERY}}), it is advisable to
-test for liveness before sending any data that cannot be retried safely.
+test for liveness before sending any data that cannot be retried safely.  Note
+that it is likely that only application protocols or using applications will
+know what information can be retried.
 

Applications using the application protocol, presumably.  For instance, an HTTP library might not really know whether retrying something is safe -- it's the caller of the library that ultimately has to decide.

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