Problem terminating response sequence

[Daniel Millwood <MILLWOOD@uk.ibm.com>]

Hi Vladimir,

We wanted to test the server closing the response sequence back to the
client.  In the general case (except for the two-way through a firewall
scenario proposed this week), the life cycle of the request sequence and
the response sequence are not linked, so we needed a prompt for the RMD to
know when to terminate the response sequence.  This was what we came up
with on the last interop call.

In a real implementation, it may be that the server would not choose to
terminate the response sequence until the sequence expires.  We talked
about this as an option on last weeks interop call (basically, not
expecting the TerminateSequence to be sent for the response sequence), but
decided on the application level prompt instead so that we could test the
specification.

At the time, the proposal was not identified as a problem for anyone.  If
it is for your implementation, perhaps the TerminateSequence for the
response sequence should be removed from the 2-way scenarios (except
two-way through a firewall).

Thoughts anyone?

Thanks,  Dan

WS-Reliable Messaging Architect and Team Lead
IBM WebSphere Messaging Design and Development
MP 211
Hursley
Tel. Internal 248617
Tel. External +44 1962 818617
Email. millwood@uk.ibm.com



                                                                           
             "Videlov,                                                     
             Vladimir"                                                     
             <vladimir.videlov                                          To 
             @sap.com>                 Daniel Millwood/UK/IBM@IBMGB        
                                                                        cc 
             16/02/2006 17:44          <ws-rx-implement@lists.oasis-open.o 
                                       rg>                                 
                                                                   Subject 
                                       RE: [ws-rx-implement] Groups -      
                                       InteropScenarios.doc uploaded       
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           




Hi Dan,

Sorry for the late joining in on this issue ("last message" notification
to RMD), but why you decided to use an flag within the business
operation payload instead of CloseSequence for example? This flag will
never go to the RM layer at least in our impl.

I'm not following the WS-RX TC closely, so that the answer could be
obvious, but this solution bothers me a lot.


Kind regards,
Vladimir Videlov

-----Original Message-----
From: millwood@uk.ibm.com [mailto:millwood@uk.ibm.com]
Sent: Friday, February 10, 2006 1:31 PM
To: ws-rx-implement@lists.oasis-open.org
Subject: [ws-rx-implement] Groups - InteropScenarios.doc uploaded

As requested on the call yesterday, I have updated the interop doc with
the
following changes:


For scenarios 2.1, 2.2 and 2.3, indicate in the last application request
message that it is the last one and how many were sent, so that the RMD
knows when it can close the sequence for replies.

I have added a missing Clients TerminateSequence Message example for
scenario 2.1
I have added a note about how the offered sequence should be used
pending
resolution to issue i090 for scenario 2.1

Please review and let me know of any problems.

Thanks, Dan


 -- Mr. Daniel Millwood

The document revision named InteropScenarios.doc has been submitted by
Mr.
Daniel Millwood to the WS-RX Implementation SC document repository.
This
document is revision #2 of InteropScenarios.doc.

Document Description:
Initial interop scenario doc

View Document Details:
http://www.oasis-open.org/apps/org/workgroup/ws-rx-implement/document.ph
p?document_id=16617

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p/16617/InteropScenarios.doc

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