ietf
[Top] [All Lists]

Re: Gen-ART LC review of draft-dusseault-http-patch-15.txt

2009-11-13 23:14:36


On Fri, 13 Nov 2009, Roy T. Fielding wrote:


Yes, and that is exactly what would happen even if HTTP supported
full two-phase commit, with all of its painful consequences, if the
response to commit was lost.  This is an application problem, not
a protocol requirement.  It can be "fixed" (to the degree that any
fix is possible in a distributed system) by providing the client
with a status resource within the same page as the SUBMIT, such
that the client can see the change in server state when it takes
place even if the specific 200 response is lost.  In other words,
provide the client with the information necessary to check the bill
before the final transaction is submitted.


It can also be checked on the server is a serial number is included
in the POSTed data which can be used to determine if the original
post was already processed.

Dave Morris
_______________________________________________
Ietf mailing list
Ietf(_at_)ietf(_dot_)org
https://www.ietf.org/mailman/listinfo/ietf

<Prev in Thread] Current Thread [Next in Thread>