[OASIS Issue Tracker] Updated: (MQTT-7) Can the client and server store QoS=0 messages after a client using CleanSession=0 has disconnected?

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

     [ http://tools.oasis-open.org/issues/browse/MQTT-7?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Banks updated MQTT-7:
----------------------------

    Proposal: 
If a client connects using CleanSession=0: 
 - the client and server MUST store qos 1 and qos 2 messages, including those new messages due to active subscriptions on the server 
 - the client and server MAY discard existing and new QoS 0 messages 

  was:The client and server implementations can choose whether to keep or discard these messages.


> Can the client and server store QoS=0 messages after a client using CleanSession=0 has disconnected?
> ----------------------------------------------------------------------------------------------------
>
>                 Key: MQTT-7
>                 URL: http://tools.oasis-open.org/issues/browse/MQTT-7
>             Project: OASIS Message Queuing Telemetry Transport (MQTT) TC
>          Issue Type: Improvement
>          Components: core
>            Reporter: Andrew Banks
>
> Can the client and server store QoS=0 messages after a client using CleanSession=0 has disconnected
> or must these messages be discarded. If they must be discarded then a temporary network outage will unnecessarily cause Qos=0 messages to lost.

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