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Displaying posts with tag: mariadb (reset)
On Open Source and Business Choices

Open Source is a whole-of-process approach to development that can produce high-quality products better tailored to users’ real world needs.  A key reason for this is the early feedback cycle built into that complete process.

Simply publishing something under an Open Source license (while not applying Open Source development processes) does not yield the same quality and other benefits.  So, not all Open Source is the same.

Publishing source of a product “later” (for instance when the monetary benefit has diminished for the company) is meaningless.  In this scenario, there is no “Open Source benefit” to users whatsoever, it’s simply a proprietary product. There is no opportunity for the client to make custom modifications or improvements, or ask a third party to work on such matters – neither is there any third party opportunity to verify and validate either code …

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Thoughts on MaxScale new license

MaxScale has been open source until now, just like all MariaDB projects. But the 2.0 version is released under a new license called BSL, which basically makes the covered work non-free until the Change Date (in this case 2019-01-01), when the license will be converted to GPL.

Looks like open source friendly, after all. The license will be GPL, just be patient. And the code is available. Right?

No. Cmpletely wrong. For plenty of reasons.

Some reasons

It is a lock-in. No matter how many times Monty repeats that there is no lock-in, we have a brain. If you don’t allow anyone to fix bugs except for yourself, it is a lock-in. If you force your users to buy your support, they won’t buy your competitors support.

MariaDB business moves to a non-free product. Yes, 1.4 is …

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Fired for supporting open source

I have been fired for speaking out about the GPL and MariaDB actions that have caused great harm to our ecosystem.

It has been pointed out that I have a non-compete agreement. None of my tools compete with MariaDB and I have no non-public knowledge of MariaDB technology. GPLScale remains free software under the GNU GPL license and it is my right to fork a github repo. I am not paid to work on GPLScale and I don't intend to get paid to maintain it by anyone. All my projects are labors of love.


Who wants to hire me? I'm dedicated, honest, open, and I have integrity. I'm willing to risk everything for what I believe in.

Email me at:
greenlion at gmail dot com


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I have been a proponent of GPL for a long time, and I don't need publicity.

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Emulating Sequences in MySQL and MariaDB

Sequences are objects defined by the SQL standard that are used to create monotonically increasing sequences of numeric values. Whenever nextval is called on a sequence object, it generates and returns the next number in the sequence. For MySQL and MariaDB users, this might sound similar to MySQL’s AUTO_INCREMENT columns, but there are some differences: Sequences are defined by the ... Read More

Basically Shitty License

Monty announced that he has created a new non-open source license called the "Business Source License" or BSL.  I think it should have a different name...

You see, Monty has fundamentally crafted a straw man to stand in for the general Open Source model by applying his experience in the dog-eat-dog world of forked software, in particular, the "ecosystem" of MySQL.  The software that MariaDB draws the majority of their income from is MariaDB, which is a fork of MySQL.  If you don't know the history, well, you see, SUN bought MySQL, Oracle bought Sun, and Monty, in an environment of nearly Biblical levels of FUD, forked MySQL into MariaDB (both products are named after his daughters).

While MariaDB was originally envisioned as a "drop in/drop out" replacement, it has diverged so far from the Oracle product that it is no longer even "drop in" with the latest versions of MySQL. Oracle is adding amazing new …

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What’s next

I received an overwhelming number of comments when I said I was leaving MariaDB Corporation. Thank you – it is really nice to be appreciated.

I haven’t left the MySQL ecosystem. In fact, I’ve joined Percona as their Chief Evangelist in the CTO Office, and I’m going to focus on the MySQL/Percona Server/MariaDB Server ecosystem, while also looking at MongoDB and other solutions that are good for Percona customers. Thanks again for the overwhelming response on the various social media channels, and via emails, calls, etc.

Here’s to a great time at Percona to focus on open source databases and solutions around them!

My first blog post on the Percona blog – I’m Colin Charles, and I’m here to evangelize …

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Changing of the guard

I posted a message to the internal mailing lists at MariaDB Corporation. I have departed (I resigned) the company, but definitely not the community. Thank you all for the privilege of serving the large MariaDB Server community of users, all 12 million+ of you. See you on the mailing lists, IRC, and the developer meetings.

The Japanese have a saying, “leave when the cherry blossoms are full”.

I’ve been one of the earliest employees of this post-merge company, and was on the founding team of the MariaDB Server having been around since 2009. I didn’t make the first company meeting in Mallorca (August 2009) due to the chickenpox, but I’ve been to every one since.

We made the first stable MariaDB Server 5.1 release in February 2010. Our first Linux distribution release was in …

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Parallel Replication with TokuDB & MariaDB 10.1

I) What is parallel replication?

Parallel replication is a nice feature introduced in MariaDB 10.0, and which allows to run in parallel some queries on a slave. Basically, by default (the conservative mode), it runs in parallel transactions that couldn’t have any conflict. Note you have to enable GTID to use this feature.

Starting with MariaDB 10.1.3 new parallel modes have been introduced : optimistic & aggressive mode. Those modes try to increase the parallelism by executing queries, and handles conflicts with rollback and retry.

This feature is known to work well on InnoDB, but what’s happening with an engine like TokuDB?

II) Let’s try it on TokuDB!

To enable the parallel replication, you …

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Installing MariaDB MaxScale the hard way

If you are like me (let's for everyones sake hope you are not, though) you like to do things the hard way, in particular when it comes to testing things. For example when installing things on your Linux box, just to try them out, you might not want to do a yum install an rpm -ivh or an apt-get to have some files spread all over your system, instead you want to tar xvf some tarball and possibly, if you are in a good mood or you want to be a nice so you get some gifts for christmas or maybe because it is just that day, you unpack that tarball in /usr/local instead of in /home/bofh/junk. And this will usually get you in some trouble, but as we have already determined that we are truly bad (maybe we should get a tattoo or two also, or is the right to death-metal antics reserved for IT security personel only? Sure seems so) we can ignore that and get to work.

Here I will show you how to install …

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Bitwise operators with BINARY fields in MySQL and MariaDB

A MariaDB support customer recently upgraded to MariaDB 10.1, and they noticed that some of their queries using bitwise operators started to return warnings, which they thought was strange because they produced no warnings in MariaDB 10.0. These particular queries used bitwise operators on BINARY(N) fields. For example, their table was similar to this: CREATE TABLE item_flags ( item_id int(11) ... Read More

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