[OASIS Issue Tracker] (MQTT-252) Support for large message transmission

Andrew Schofield created MQTT-252:

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Summary: Support for large message transmission
Key: MQTT-252
URL:  https://issues.oasis-open.org/browse/MQTT-252
Project: OASIS Message Queuing Telemetry Transport (MQTT)

TC
Issue Type: New Feature
Components: core
Affects Versions: 3.1.1
Reporter: Andrew Schofield
MQTT has an architected limit of 256MB for the message payload. In practice, transmitting a message this large is troublesome. First, the transmission of large messages ties up the network connection for a considerable time, potentially blocking smaller messages. Second, the longer a message takes to transmit, the higher the chance that a network outage will interrupt the transmission, which would then have to be restarted from the beginning. MQTT would make a good transport for delivery of large payloads, in particular device firmware, but only if they can be transmitted in a more manageable way.

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