IPP Mail Archive: RE: IPP> machine readable etc. - why Harry

IPP Mail Archive: RE: IPP> machine readable etc. - why Harry

RE: IPP> machine readable etc. - why Harry is right

From: Herriot, Robert (Robert.Herriot@pahv.xerox.com)
Date: Thu Aug 24 2000 - 18:00:32 EDT

  • Next message: andre.goldenstein@aral.net: "IPP> Offer 25.08.2000"

    > -----Original Message-----
    > From: Carl Kugler/Boulder/IBM [mailto:kugler@us.ibm.com]
    > Sent: Thursday, August 24, 2000 9:15 AM
    >
    > Bob wrote:
    > >> -----Original Message-----
    > >> From: Carl Kugler/Boulder/IBM [mailto:kugler@us.ibm.com]
    > >
    > >... snip
    > >
    > >> But we probably need some way to "expire"
    > >> undelivered notifications, so they don't build up
    > >> indefinitely if clients
    > >> go away. Could be a simple, specified maximum guaranteed
    > >> retention time
    > >> for undelivered notifications, or an attribute (settable or not).
    > >
    > >I assumed that we would use the same "lease" mechanism as in
    > "ippget".
    > >Unlike "ippget", the Printer doesn't have to try to be
    > intelligent about the
    > >lease time. It can always pick a small number, such as 30
    > seconds for all
    > >leases and assume that the client will perform
    > Get-Notifications within a
    > >few seconds.
    >
    > That's fine with me, but I thought the "lease" mechanism in
    > "ippget" used
    > the "begin-to-expire-time-interval" attribute, which I
    > thought you wanted
    > to remove. Maybe we need a different (optionally settable) Printer
    > attribute, like "maximum-guaranteed-notification-retention-time".
    > Alternatively, we could specify a fixed constant in the
    > standard, similar
    > to TCP's TTL (maximum "Time To Live", specified as 2 minutes).
    >
    >

    When I suggested that the Printer not return the
    "begin-to-expire-time-interval" attribute, I didn't mean that the Printer
    shouldn't have an expiration time for Event Notifications. Your idea of a
    "notify-retention-time" Printer Attribute is what I had in mind.



    This archive was generated by hypermail 2b29 : Thu Aug 24 2000 - 18:09:46 EDT