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Subject: [OASIS Issue Tracker] (MQTT-271) Describing small device limitations, aka "the Arduino problem"

    [ https://issues.oasis-open.org/browse/MQTT-271?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=62254#comment-62254 ] 

Nicholas O'Leary commented on MQTT-271:

Following review at the April F2F meeting, it was proposed that all of the considerations this JIRA raises would be covered by MQTT-276 - https://issues.oasis-open.org/browse/MQTT-276 - enhancements for large scale distributed systems. This includes:
 - qos limits
 - message size limits
 - flow control

(nb, some of those are linked from MQTT-276 to other JIRAs)

If that's agreed, we can focus efforts there and close this JIRA.

> Describing small device limitations, aka "the Arduino problem"
> --------------------------------------------------------------
>                 Key: MQTT-271
>                 URL: https://issues.oasis-open.org/browse/MQTT-271
>             Project: OASIS Message Queuing Telemetry Transport (MQTT) TC
>          Issue Type: Improvement
>          Components: futures
>    Affects Versions: 3.1.1
>         Environment: Very small device implementations.
>            Reporter: Ian Craggs
> Small devices, like the original Arduino, may have very limited resource, like 16k of RAM, or less.  For such devices, limiting the storage used by MQTT is very important.  
> They may not even be able to process a message of 30k, for instance, at all.  If it were sent at QoS 1 or 2, it has to be read in before subsequent messages are received.  
> At the moment, it is a server admin task, or application design task, to make sure that messages bigger than a device can handle are not sent to it.

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