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Re: [paho-dev] Contribution of MQTT Servers (Mosquitto and RSMB)


I wouldn't anticipate too much if I were you - there might not be any :-)


On 08/12/2013 09:28 PM, Roger Light wrote:
Hi all,

The changes look good to me, I think it's in pretty good shape now.

I agree with what Ian says about code merging and just to add that I
look forward to seeing the rsmb code and finding the bits that it does
better than mosquitto.



On Mon, Aug 12, 2013 at 7:30 PM, Ian Craggs
<icraggs@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
Ian, Mike,

to answer the question of how Mosquitto and RSMB code bases will be merged.

My view is that this proposal is as much as a "declaration of intent" from
IBM, as much as a contribution of code.   It will signal that the future of
RSMB is in open source, here in Eclipse.  That signal is for people inside
IBM as well as in the open source community.  Whether RSMB code is actually
used in a final Mosquitto product is secondary - there will be no forced

IBM will have already contributed to the project: the design of MQTT and
much of the external behaviour of Mosquitto itself, which was originally
derived from RSMB.  The design of RSMB, though it looks simple, was
influenced by my years of experience with MQTT servers, and with the
collaboration of a number of other IBM folk, like Andy Stanford-Clark, Dave
Conway-Jones, Nick O'Leary and Dave Locke.

There a few functions that exist in RSMB that do not currently in Mosquitto
- some serviceability aids in RSMB were required by IBM to build a supported
product for instance.   Both RSMB and the existing Mosquitto projects use
conditional compilation to allow smaller, less functional executables to be
built as desired.   If there is function which IBM wants, but the Mosquitto
project leads do not, it could be applied by patch or conditional
compilation by IBM (but would still be open source).  If code from RSMB is
useful, having the codebase contributed already makes it easy to pick and

Either way, I intend to contribute to the project, whether through code or
tests or documentation, or in other ways.  And we already have a codebase
which satisfies the draft aims of the project.

Ian Craggs

On 08/12/2013 04:56 PM, Mike Milinkovich wrote:
The proposal looks good to me. Has there been a discussion on how the
and Mosquitto code bases will be merged?
Step one is to get both code bases contributed to a common project under
same license. Before that happens, the code merge conversation is rather
moot. Especially since RSMB's code is not currently available in open
for others to see.

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