[OASIS Issue Tracker] (MQTT-420) Payload format checking should be optional (line 1740, wd11) ?

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

Richard Coppen created MQTT-420:
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             Summary: Payload format checking should be optional (line 1740, wd11) ?
                 Key: MQTT-420
                 URL: https://issues.oasis-open.org/browse/MQTT-420
             Project: OASIS Message Queuing Telemetry Transport (MQTT) TC
          Issue Type: Bug
          Components: edits
    Affects Versions: 5, wd11
            Reporter: Richard Coppen
            Assignee: Ken Borgendale
             Fix For: 5


Raising initially as an edits issue following today's TC call. Ken believes this might have been an edits error and will check back through the change history.
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Line 1740 currently says:

1740 A Server MUST send the Payload Format Indicator unaltered to all subscribers receiving the publication
1741 [MQTT-3.3.2-4]. The receiver MUST validate that the Payload is of the format indicated, and if it is not
1742 send a PUBACK, PUBREC, or DISCONNECT with Return Code of 0x99 (Payload format invalid) as
1743 described in section 4.13 [MQTT-3.3.2-5].

This is really restrictive as each message published will be checked at least twice, once by the server and once by the end receiver. We discussed this quite a bit on TC calls I thought the proposal was to make it a MAY clause.



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