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  1. OASIS Message Queuing Telemetry Transport (MQTT) TC
  2. MQTT-10

Should Qos=0 retained messages be persisted in the server?

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 3.1.1
    • Fix Version/s: 3.1.1
    • Component/s: core
    • Labels:
      None
    • Environment:

      MQTT server

    • Proposal:
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      The Server SHOULD retain QoS 0 messages, but MAY discard them at any time. In the latter case there will be no retained message.

      Note to editors:
      For completeness, consider providing a link in Section 2.2.2.3 "Retained" to Section 4.1 "Store" to help reader with clarity around store.

      Show
      The Server SHOULD retain QoS 0 messages, but MAY discard them at any time. In the latter case there will be no retained message. Note to editors: For completeness, consider providing a link in Section 2.2.2.3 "Retained" to Section 4.1 "Store" to help reader with clarity around store.
    • Resolution:
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      Fixed in WD14

      Show
      Fixed in WD14

      Description

      The current specification states that :

      Retained messages should be kept over restarts of the server.

      Is this correct even for Qos=0 retained publications?

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            • Assignee:
              andrew_banks Andrew Banks (Inactive)
              Reporter:
              andrew_banks Andrew Banks (Inactive)
            • Watchers:
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              Dates

              • Created:
                Updated:
                Resolved: