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[Bug 9613] New: Support WS-Management's persistent subscriptions

From: <bugzilla@jessica.w3.org>
Date: Wed, 28 Apr 2010 22:19:07 +0000
To: public-ws-resource-access-notifications@w3.org
Message-ID: <bug-9613-2780@http.www.w3.org/Bugs/Public/>
http://www.w3.org/Bugs/Public/show_bug.cgi?id=9613

           Summary: Support WS-Management's persistent subscriptions
           Product: WS-Resource Access
           Version: LC
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: Eventing
        AssignedTo: public-ws-resource-access-notifications@w3.org
        ReportedBy: gilbert.pilz@oracle.com
         QAContact: public-ws-resource-access-notifications@w3.org


The WS-Man WG has identified the need for “persistent subscriptions” in
WS-Eventing. A “persistent subscription” is a subscription that is guaranteed
(by the Event Source) to survive such occurrences as the shutdown/restart of
the Event Source's container, the shutdown/restart of the Event Source's VM, or
the reboot of the device hosting the Event Source. Although any Event Source is
allowed to provide such a quality of service in the current specification, the
important aspect of this feature is the Subscribers knowledge of this
guarantee.

It is the opinion of the WS-Man WG that this feature is sufficiently general as
to warrant inclusion in the base specification.

---

Proposal:

1. Add an optional element to the wse:Subscribe element (e.g. “wse:Persistent”)
that indicates that the Subscriber is requesting a persistent subscription.

2. Create a new fault that MUST be generated by the Event Source if that Event
Source is unable/unwilling to create a persistent subscription in the face of a
request to do so.

3. Add a parameter to the wse:EventSource assertion that indicates the
endpoints ability to create persistent subscriptions.

4. Define a mechanism to allow a client to specify whether the request should
be performed with or without the use of this feature in a way similar to the
way mustUnderstand works.

[1] http://www.dmtf.org/standards/published_documents/DSP0226_1.1.pdf

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Received on Wednesday, 28 April 2010 22:19:49 GMT

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