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Subject: Issue 076 - WS-BA: Long-lived indication message
This is identified as WS-TX issue 076. Please ensure follow-ups have a subject line starting "Issue 076 - WS-BA: Long-lived indication message". -----Original Message----- From: Alastair Green [mailto:alastair.green@choreology.com] Sent: Friday, June 30, 2006 2:10 AM To: ws-tx@lists.oasis-open.org Subject: [ws-tx] NEW ISSUE: WS-BA: Long-lived indication message Issue name -- WS-BA: Long-lived indication message PLEASE DO NOT REPLY TO THIS EMAIL OR START A DISCUSSISON THREAD UNTIL THE ISSUE IS ASSIGNED A NUMBER. The issues coordinator will notify the list when that has occurred. Target document and draft: Protocol: WS-BA Artifact: spec Draft: BA spec cd 2 Link to the document referenced: http://www.oasis-open.org/committees/download.php/18819/wstx-wsba-1.1-sp ec-cd-02.doc Section and PDF line number: Issue type: Design Related issues: Issue Description: Long-lived activities are susceptible to message thrashing (retries that are soliciting answers which will not come for a long time). It is useful for a party to be able to indicate that it will not send a message to its counterpart for some period of time. Issue Details WS-Addressing pre-defined faults cannot be assumed to be deliverable. The WS-Addressing fault that enables indication of postponed response is a reply, and cannot be sent spontaneously. A new message is needed at the WS-BA level, to permit the semantic "Do not expect anything further from me for at least n seconds" to be communicated. This message is a legitimate response to any protocol message that will induce a conversational response. Proposed resolution Create a new WS-BA non-terminal message NextMessageDelay with a property AnticipatedDelay, value of 0 equals indefinite, positive integer value equals seconds to anticipated transmission of next "real" message. This message is a hint, the anticipated delay may be foreshortened or exceeded in practice at the sender's will. This message may be sent by either the Participant or Coordinator, and may be sent at any time, and is therefore always a legitimate response to any notification that expects a reply.
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