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From Christian Schneider <>
Subject Re: [Discuss] Chronicle Queue transport for Aries rsa (licensing)
Date Fri, 25 Mar 2016 08:05:25 GMT
As far as I understand it a downstream project would be able to use 
chronicle under apache license if it is open source itself.
So it would create problems when integrating Aries rsa into a commercial 

I talked to Dan Kulp yesterday and he said that this is a field of use 
restriction that is not allowed at apache. Is that correct?
If yes we would have to decline and ask Peter if they are willing to 
switch back to Apache License completely. Another possible solution
brought up by Dan was that they could choose a suitable category b 
license if they want to exercise more control over their software while
allowing apache use.


On 24.03.2016 15:15, David Bosschaert wrote:
> Hi Christian,
> If they relicense for Aries to ASL I would still have the question whether
> I as a user of Aries in some different project can still use this library
> under ASL. I mean is the relicensing only valid in the context of the Aries
> project or also in the context of other unrelated downstream projects or
> products that use RSA from Aries?
> Cheers,
> David
> On 24 March 2016 at 13:42, Christian Schneider <>
> wrote:
>> I just did a POC Aries rsa transport using Chronicle Queue. It is indeed
>> very fast. I get about 500 000 msg/s for one way calls.
>> So from a performance perspective I think it would be very interesting to
>> have this as a transport.
>> I am not sure if their licensing works for us though. They have switched
>> to lgpl mid last year.
>> The good news is that I was able to get Peter Lawrey to add a special
>> licensing for open source projects like Aries.
>> See:
>> and:
>> So we are allowed to use the software under the apache license. Is that
>> good enough for us to include Chronicle queues into Aries rsa?
>> Christian
>> --
>> Christian Schneider
>> Open Source Architect

Christian Schneider

Open Source Architect

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