[OASIS Issue Tracker] (MQTT-290) Session Expiry Will message.

[OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>]

    [ https://issues.oasis-open.org/browse/MQTT-290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=63843#comment-63843 ] 

Konstantin Dotchkoff commented on MQTT-290:
-------------------------------------------

In 3.1.1 Will message is emitted immediately when the Network Connection is closed. In the case of delayed Will message, what should be the behavior if the server is being shutdown before the will timeout has been reached?
We might also want to introduce a language that suggests that the Server is not required to guarantee this interval.

> Session Expiry Will message.
> ----------------------------
>
>                 Key: MQTT-290
>                 URL: https://issues.oasis-open.org/browse/MQTT-290
>             Project: OASIS Message Queuing Telemetry Transport (MQTT) TC
>          Issue Type: Improvement
>          Components: futures
>    Affects Versions: 5
>            Reporter: Andrew Banks
>            Assignee: Andrew Banks
>
> The Will message is created on CONNECT and is published by the Server 
> if the network connection is lost without a DISCONNECT packet being
> processed.
> Jira 249 introduces the idea of a Session expiry interval, such that a 
> session can be deleted by the client and server some time after
> an Network disconnection.
> This Jira discusses whether another Will message should flow when
>  the client's Session is deleted. Possible approaches include:
> 1) Allowing a second Session Expiry will message to flow in the CONNECT packet, 
> in addition to the current Network Disconnection will message, 
> and publishing this when the session either expires or is deleted by an administrator.
> 2)Signaling via a flag in the CONNECT packet that the Will message
>  should be published when the session expires or is deleted,
> instead of when the network is disconnected.



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