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Project: OGSA-NAMING-WG     Trackers > Naming Comments by Frank > View Artifact
Artifact artf3071 : (1746) epr-hint removal
Tracker: Naming Comments by Frank
Title: (1746) epr-hint removal
Description:
remove the optional parameter "epr-hint" for the renewable reference 
because its use and associated semantics is very confusing and doesn't 
add functionality.
If the resolver can make use of additional information in the original 
EPR, then the renewable reference minter can add that to the RR-EPR's 
Address and/or ReferenceParameters. In other words, there is no point in 
putting the burden on the client to "guess" whether it makes sense to 
communicate the original EPR or not, because the minter can do it much 
better. Furthermore, the burden is still on the client to verify whether 
the reply is a new EPR or not.
.
Submitted By: Mark Morgan
Submitted On: 02/08/2006 11:07 AM EST
Last Modified: 07/18/2006 2:57 PM EDT
Closed: 07/18/2006 2:57 PM EDT

Status / Comments Change Log Associations Attachments  
Status  
Group: *
Status:* Closed
Category: *
Customer: *
Priority: * 0
Assigned To: * Andrew Grimshaw
Reported in Release: *
Fixed in Release: *
Estimated Hours: * 0
Actual Hours: * 0
Comments
Andrew Grimshaw: 07/18/2006 2:57 PM EDT
  Comment:
Done
  Action: Update
Closed set to 07/18/2006
Status changed from Open to Closed
Mark Morgan: 05/01/2006 3:07 PM EDT
  Comment:
Frank's Response from Email (28 April 2006)
----------------------------------------------------

Please read my comment again... the epr-minter of the renewable reference EPR can embed information about the EPR in which it was embedded.

Furthermore, as the client cannot compare the EPR that is returned with its cache of already used EPRs, and because the client doesn't know whether it
 deals with a "smart" or "dumb" resolution service, it can only just try and give up after a number of attempts if it doesn't work.
  Action: Update
Andrew Grimshaw: 03/16/2006 2:47 PM EST
  Comment:
I'd rather not remove it. In our experience with an earlier re-resolution scheme it is very useful to know which EPR the client has already tried ... 
because if they just tried an EPR and it did not work, why give them exactly the same one back? Instead, you want to give them another, "fresher" one 
if one is available.

For example, suppose my resolution service is really a binding cache, binding abstratnames to EPR's - or if i am not using abstract names to id 
services, whatever i am using in the EPR to id services. Clients use the cache service to get bindings. If they don't pass in the binding they used - 
they may get the same one back.
  Action: Update
Andrew Grimshaw: 03/16/2006 2:47 PM EST
  Action: Update
assigned_to changed from 100 to 126
Mark Morgan: 02/08/2006 11:07 AM EST
  Action: Create


 
 
 
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This is a static archive of the previous Open Grid Forum GridForge content management system saved from host forge.ogf.org file /sf/go/artf3071?nav=1 at Sun, 06 Nov 2022 07:05:54 GMT