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From: Mike Bayer <mbayer@redhat.com> Reply-to: "OpenStack Development Mailing List \(not for usage questions\)" <openstack-dev@lists.openstack.org> To: OpenStack Development Mailing List (not for usage questions) <openstack-dev@lists.openstack.org> Subject: Re: [openstack-dev] mysql/mysql-python license "contamination" into openstack? Date: Thu, 12 Jun 2014 15:30:00 -0400
On Thu Jun 12 14:13:05 2014, Chris Friesen wrote:
Hi,
I'm looking for the community viewpoint on whether there is any chance of license contamination between mysql and nova. I realize that lawyers would need to be involved for a proper ruling, but I'm curious about the view of the developers on the list.
Suppose someone creates a modified openstack and wishes to sell it to others. They want to keep their changes private. They also want to use the mysql database.
The concern is this:
nova is apache licensed sqlalchemy is MIT licensed mysql-python (aka mysqldb1) is GPLv2 licensed mysql is GPLv2 licensed
The concern is that since nova/sqlalchemy/mysql-python are all essentially linked together, an argument could be made that the work as a whole is a derivative work of mysql-python, and thus all the source code must be made available to anyone using the binary.
Does this argument have any merit?
the GPL is excepted in the case of MySQL and other MySQL products released by Oracle (can you imagine such a sentence being written.....), see http://www.mysql.com/about/legal/licensing/foss-exception/. If MySQL-Python itself were an issue, OpenStack could switch to another MySQL library, such as MySQL Connector/Python which is now MySQL's official Python driver: http://dev.mysql.com/doc/connector-python/en/index.html
Has anyone tested any of the mysql DBAPIs with more permissive licenses?
I just mentioned other MySQL drivers the other day; MySQL Connector/Python, OurSQL and pymysql are well tested within SQLAlchemy and these drivers generally pass all tests. There's some concern over compatibility with eventlet, however, I can't speak to that just yet.
Chris
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