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Displaying posts with tag: License (reset)
MySQL man pages silently relicensed away from GPL

It has recently been brought to our attention that the MySQL man pages have been relicensed. The change was made rather silently going from MySQL 5.5.30 to MySQL 5.5.31. This affects all pages in the man/ directory of the source code.

You can tell the changes have come during this short timeframe (5.5.30->5.5.31). The old manual pages were released under the following license:

This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License.

The new man pages (following 5.5.31 and greater – still valid for 5.5.32) are released under the following license:

This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. Except as expressly permitted in your license …

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MariaDB C client libraries and the end of dual-licensing

Finally there is an LGPL C client library for MariaDB, and thus also for MySQL. Monty Program and SkySQL have been working on this for some time. Admittedly there was already the BSD licensed Drizzle client library which was also able to talk to a MySQL/MariaDB server, however its API is different. The C client library for MariaDB has exactly the same API existing applications are used to, so you can just re-link and keep going! There is also a new LGPL Java client library for MariaDB.

In case you don’t quite realise: this is actually a major thing.

At MySQL AB, the client library was made GPL and this flowed through to Sun Microsystems and then Oracle Corp. This licensing choice for the client library was the basis of the …

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Three Editions of MySQL are Available

Yes, you read the title correctly — there are three editions of MySQL available, according to Well, that page names two, and then of course there is the community edition….

From the manual page:

MySQL Enterprise Server is available in the following editions:

* MySQL Enterprise Server – Pro is the world’s most popular open source database that enables you to rapidly deliver high performance and scalable Online Transaction Processing (OLTP) applications.
* MySQL Enterprise Server – Advanced is the most comprehensive edition of MySQL. It provides all the benefits of MySQL Enterprise Server Pro and adds horizontal table and index partitioning for improving the performance and management of VLDBs (Very Large Databases).

How is “horizontal table …

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CAOS Theory Podcast 2010.02.19

Topics for this podcast:

*Jacobsen v. Katzer and open source impact
*Intel, Nokia team up for MeeGo open source OS
*Open source continues in embedded space
*MongoDB and the advent of the NoSQL databases
*Copyrights, complexities, control and conflict

iTunes or direct download (21:48, 6.07 MB)

New GPL suits and an open source imbalance

A new round of GPL-based BusyBox suits has been filed, targeting big names in electronics and IT. We’ve long covered these series of GPL-based suits and settlements, but this latest round comes at an interesting time for open source software and its licensing.

First, we have the backdrop of the Oracle-Sun-MySQL acquisition, with opponents arguing to the world and the European Commission, which is reviewing the proposed merger before approving it, in part that the GPL is, ironically, granting too much power to its user, in this case Oracle. I’ve been quoted in the press and honestly agree with …

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And the best open source license is …

UPDATE: The final vote is in and a winner has been declared, with Matt Asay and his arguments for the GPL taking the prize. You can see the debate or follow links to the other judges’ votes and thoughts here.

This is my assessment as a judge of the recent open source license debate held by the FOSS Learning Centre. We’ll have to begin with some qualifications and definitions, starting with the fact that there is no ‘best’ open source software license. Still, a star-studded open source software panel provided a lively, informative debate on the merits of some top open source licenses. For that, I congratulate and thank the panelists, Mike Milinkovich from the Eclipse Foundation arguing for the Eclipse Public License, Matt Asay of Alfresco arguing in favor of the GPL and David Maxwell from Coverity arguing for …

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Dependence on MySQL Documentation

I think many people truly realized how much they take the MySQL documentation for granted during the recent multi-hour outage from’s data center. Apparently there is a lot of FUD floating around about the legality of mirroring the documentation, as presented by Justin Swanhart and asked by Mark Callaghan.

The manual page at says:

You shall not publish or distribute this documentation in any form or on any media, except if you distribute the documentation in a manner similar to how Sun disseminates it (that is, electronically for download on a Web site with the software) or on a CD-ROM or similar medium, …

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As license issues swirl, a new CAOS report

There has been no shortage of lively discussion on open source software licenses with recent shifts in the top licenses, perspectives on the licenses or lack of them for networked, SaaS and cloud-based software, increased prominence of a Microsoft open source license and concern over the openness (or closedness, depending on your perspedtive) of the latest devices. Amid all of it, we’re pleased to present our latest long-form report, CAOS 12 - The Myth of Open Source …

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Friday challange: linking with GPL code

This is rather a theoretical interest for me for now (what else to do Friday evening) , but I see how it can be used in current dual-licensed mixed open / closed source storage engines MySQL world.

So problem is:

Let's keep MySQL aside for simplicity and imagine we have fully open-source GPLvX licensed "MoonOffice" software. MoonOffice uses libsupercompress library which also distributed under GPL, and provide two functions: "superCompressFile", "superDecompressFile". MoonOffice can be both statically or shared linked with this library. This all fine.

Now imagine one provides library libquickcompress, which is closed sourced, available only in binary formats .so and .la, but the license on it is "use it as you want, link it with whathever you want, distribute it as you want". Of course library also exports two functions "superCompressFile", "superDecompressFile".

Now questions: can we link our GPLed "MoonOffice" …

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MySQL docs freedom

As you may or may not know, long long ago (in this universe) I used to be the MySQL documentation team  Yes, a team of one. This was 2001. It was a great and interesting time. The current much extended team is doing a great job with the now much bigger set of docs!

Today, I find myself disagreeing with my former colleagues on one particular aspect, namely its licensing. You see, the documentation has never been released under an open license, it used to be plainly copyright all rights reserved, and later some rights were granted to distribute the docs together with the server.

Statements made earlier by Karen Padir regarding possible opening up of the docs license filled us with hope. Then, Stefan Hinz (the current docs team lead) wrote a blog entry MySQL documentation: no license change. Some of the arguments there we can …

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