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  1. OASIS Message Queuing Telemetry Transport (MQTT) TC
  2. MQTT-552

Should a broker prohibit publish -1 messages from sleeping clients

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    Details

    • Type: Improvement
    • Status: Applied
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: MQTT-SN-1.2
    • Fix Version/s: None
    • Component/s: MQTT-SN
    • Proposal:
      Hide

      Section 7.1

      (underneath existing para)

      Sleeping clients are allowed to publish messages at QoS -1.

      Show
      Section 7.1 (underneath existing para) Sleeping clients are allowed to publish messages at QoS -1.

      Description

      From the specification;

      "..Because PUBLISH messages with QoS level -1 ​could be sent at any time by clients (even with no connection setup"

      I took this to mean that there is no issue with a broker processing messages received at -1 from a sleeping client. Perhaps we could confirm this, and make clear in implementation notes precisely when -1 messaging is allowed.

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          Related to

          Improvement - An improvement or enhancement to an existing feature or task. MQTT-546 Improve description of sleeping clients message flows

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Applied

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              People

              • Assignee:
                ian.craggs Ian Craggs
                Reporter:
                simon.johnson Simon Johnson [X] (Inactive)
              • Watchers:
                2 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: