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unsubscribing
February 13, 2016
11:49, EET
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pramanj
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Hi,
Ideally we must unsubscribe before we close the client, but what happens if we close the client with out unsubscribing? Will server be able to detect loss of client session or and unsubscribed lists automatically and close them like garbage collection.What does the specification say?
regards
PRAMANJ

February 15, 2016
7:42, EET
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Heikki Tahvanainen
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Hi,

There is timeout functionality for sessions and subscriptions in OPC UA. These will be cleared from the server eventually.

February 15, 2016
9:42, EET
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pramanj
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Ok fine. But hope server will distinguish between a subscription that is intentionally paused and a terminated client (subscription live or dead).
regards
PRAMANJ

February 15, 2016
11:11, EET
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Heikki Tahvanainen
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Setting the subscription publishing mode to false (or “pausing”) disables the publishing of notification messages for the subscription. This does not discontinue the sending of keep-alive messages, which is why the subscription will not time out in this situation.

February 15, 2016
13:06, EET
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pramanj
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great! thanks a lot. Its behaving ad expected.
regards
pramanj

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