Ahoi,There will be the IT-Tage 2016 conference. Where I'm going to give two talks. One will be about Docker being more then a technical revolution. The other one is about Best Practices for Docker+MySQL/MariaDB \o/
As always: fun first! Erkan

I have a few upcoming speaking engagements in June 2016:

• Nerdear.la – June 9-10 2016 – Buenos Aires, Argentina – never been to this event but MariaDB Corporation are sponsors and I’m quite excited to be back in Buenos Aires. I’m going to talk about the MySQL ecosystem in 2016.
• SouthEast LinuxFest – June 10-12 2016 – Charlotte, NC, USA – I have a few talks here, a bit bummed that I’m going to be missing the speaker dinner, but I expect this to be another great year. Learn about MariaDB Server/MySQL Security Essentials, the MySQL ecosystem in 2016, and about distributions from the view of a package.
• NYC MySQL Meetup – June 27 2016 – New York, USA – I’m …

New versions of systemd (like in Ubuntu 16.04) are able to configure pid Cgroups (ulimit -u via Cgroups) using TasksMax.

Check the commit implementing TaksMax.

Author: Lennart Poettering <lennart@poettering.net>
Date:   Fri Nov 13 19:28:32 2015 +0100

    core: enable TasksMax= for all services by default, and set it to 512

    Also, enable TasksAccounting= for all services by default, too.

    See:

    http://lists.freedesktop.org/archives/systemd-devel/2015-November/035006.html

But not we’ve got silly defaults:

$ systemctl show -p TasksMax docker
TasksMax=512

$ systemctl show -p TasksMax mysql
TasksMax=512

So if you use Docker or MySQL most likely you are going to have trouble without really putting load on your server.

Just set TasksMax for your service.

TasksMax=infinity

Feel free to configure that setting fitting …

Just a few days ago, I presented at the MariaDB Roadshow in London, and I had a lot of fun. While I had canned slides, I did know the topic intimately well, so it was good to get further in-depth. In addition, we had these MasterMind sessions, basically the place to get one-on-one time with Anders/Luisa/or me, I noticed that pretty much everyone said they were buying services afterwards (which more or less must mean the event was rather successful from that standpoint!).

In addition to that, I was happy to see that from attendee feedback, I did have the highest averages – thank you!

So here’s to repeating this in Paris next week — Gestion des données pour les applications vitales – …

I’m happy to be back in London in May 2016, to talk at two events:

1. The London MySQL Meetup Group – Monday May 9 – 6.30 PM – 9.00 PM – options for High Availability in the ecosystem that one would consider today. This is a cut down from my Percona Live tutorial, which had about 88 registered attendees and about that amount showed up and asked questions even through the break and after. I had a lot of fun, and I expect I will have similar fun in London talking about this area that has changed a lot in recent times.
2. Data for the Enterprise – MariaDB Roadshow in London – Wednesday, May 11, 2016 from 9:30 AM to 2:00 …

MariaDB 10.1 introduced Data at Rest Encryption. By default we provide a file_key_management plugin. This is a basic plugin storing keys in a file that can be itself encrypted. This file can come from a usb stick removed once keys have been brought into memory. But this remains a basic solution not suitable for security ...continue reading "MariaDB AWS Key Management Service (KMS) Encryption Plugin"

Today the first MariaDB 10.2 alpha popped up and for the first time there is support for window functions.

I'll describe what's been announced, what's been expected, comparisons to other DBMSs, problems (including crashes and wrong answers), how to prepare, what you can use as a substitute while you wait.

I assume some knowledge of what window functions are. If you'd prefer an introductory tutorial, I'd suggest reading articles like this one by Joe Celko before you continue reading this post.

What's been announced

The MariaDB sources are:

The release notes

The source code trees -- the feature tree up till now has been …

We had the first MariaDB Berlin Meetup on Tuesday 12.04.2016 at the Wikimedia Berlin offices at 7pm. More or less there were over 54 people that attended the event, a mix of MariaDB Corporation employees and community members. We competed with the entertainment at the AWS Summit Berlin which was apparently about 400m away! Food and drink were enjoyed by all, and most importantly there were many, many lightning talks (minimum 5 minutes, maximum 10 minutes – most were about 6-7 minutes long).

The bonus of all of this? Lots and lots of slides for you to see. Grab them from the Google Drive folder MariaDB Berlin meetup April 2016.

1. Monty talked …

While being on the committee for the FOSDEM MySQL & friends devroom, I didn’t speak at that devroom (instead I spoke at the distributions devroom). But when I had time to pop in, I did take some notes on sessions that were interesting to me, so here are the notes. I really did enjoy Yoshinori Matsunobu’s session (out of the devroom) on RocksDB and MyRocks and I highly recommend you to watch the video as the notes can’t be very complete without the great explanation available in the slide deck. Anyway there are videos from the MySQL and friends devroom.

MySQL & Friends Devroom MySQL Group Replication or how good theory gets into …

The problem with Twitter is that we talk about something and before you know it, people forget. (e.g. does WebScaleSQL have an async client library?) How many blog posts are there about Percona Live Santa Clara 2015? This time (2016), I’m going to endeavour to write more than to just tweet – I want to remember this stuff, and search archives (and also note the changes that happen in this ecosystem). And maybe you do too as well. So look forward to more blogs from Percona Live Data Performance Conference 2016. In the meantime, here’s tweets in chronological order from my Twitter search.

• crowd filling up the keynote room for #perconalive
• beginning shortly, we’ll see @peterzaitsev at #perconalive doing his keynote
• #perconalive has over 1,200 attendees – oracle has 20 folk, with 22 folk from facebook
…