Join Percona’s Product Manager Michael Coburn as he presents a Percona Monitoring and Management (PMM) Demonstration on Wednesday, October 11, 2017, at 10:00 am PDT / 1:00 pm EDT (UTC-7).

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How can you optimize database performance if you can’t see what’s happening? Percona Monitoring and Management (PMM) is a free, open source database troubleshooting and performance optimization platform for MySQL and MongoDB. PMM uses Metrics Monitor (Grafana + Prometheus) for visualization of data points. It also has Query Analytics (QAN), to help …

In this blog post, I’ll discuss some of the MySQL and MariaDB default configuration differences, focusing on MySQL 5.7 and MariaDB 10.2. Percona Server for MySQL uses the same defaults as MySQL, so I will not list them separately.

MariaDB Server is a general purpose open source database, created by the founders of MySQL. MariaDB Server (referred to as MariaDB for brevity) has similar roots as Percona Server for MySQL, but is quickly diverging from MySQL compatibility and growing on its own. MariaDB has become the default installation for several operating systems (such as Red Hat Enterprise Linux/CentOS/Fedora). Changes in the default variables can make a large difference in the out-of-box …

Good news ! The MySQL & Friends Devroom has been accepted for Fosdem’s 2018 edition !

This event is a real success story for the MySQL ecosystem, the content, the speakers and the attendees are growing every year.

Fosden 2018’s edition will take place 3rd & 4th February in Brussels and our MySQL & Friends devroom will run on Sunday 4th. FOSDEM & MySQL is a love story started 18 years ago !

The committee selecting the content for our devroom is not yet created and if you want to be part of this experience, just send me an email (candidate at mysqlandfriends dot eu) before Oct 20th .

If you want to join the Committee you have to align with the following conditions:

– planning to be present at FOSDEM
– having a link with …

I periodically do MySQL Troubleshooting tutorials. Every time I run them I have a dilemma on how to make tutorials more interactive. I tried:

1. Just talk. But troubleshooting is about action, not about sitting and listening 
2. Put tasks on my own website which required a lot of coding, not related to the talk and tasks themselves.
3. Put tasks on VirtualBox image. Many attendees do not want to use flash drive or download big image from Internet.
4. Put tasks into Amazon EC2 instance. This is practically good option, but expensive.
5. Use machines, provided by tutorial organizers (conference or training center). This is, probably, the best option, but few do it.

I did not like any of these options as final solution. That's why for my last two tutorials I tried Stepik platform. This is how " …

Join Percona Chief Evangelist Colin Charles as he covers happenings, gives pointers and provides musings on the open source database community.

This week: a quick roundup of releases, a summary of my thoughts about Percona Live Europe 2017 Dublin, links to look at and upcoming appearances. Oracle OpenWorld happened in San Francisco this past week, and there were lots of MySQL talks there as well (and a good community reception). I have a bit on that as well (from afar).

Look for these updates on Planet MySQL.

Releases

• Red Hat Software Collections 3.0 Beta now has MariaDB 10.2.7, MongoDB …

It was expected for a long time…. here is the fix for bug #199 !!

The bug #199 submitted by PeterZ has been fixed in 8.0. Thank you to Zhang Simon for his contribution that inspired us to implement the fix.

Let’s have a look at the test case described in the bug report, I will reproduce it on MySQL 5.7.19 & MySQL 8.0.3.

The initial steps are exactly the same on both versions:

mysql> create table a(id int unsigned not null primary key auto_increment);
Query OK, 0 rows affected (0.17 sec)

mysql> show create table a\G
*************************** 1. row ***************************
       Table: a
Create Table: CREATE TABLE `a` (
  `id` int(10) unsigned NOT …

The Metrics Monitor of Percona Monitoring and Management 1.3.0 (PMM) provides graph descriptions to display more information about the monitored data without cluttering the interface.

Percona Monitoring and Management 1.3.0 is a free and open-source platform for managing and monitoring MySQL®, MariaDB® and MongoDB® performance. You can run PMM in your own environment for maximum security and reliability. It provides thorough time-based analysis for MySQL, MariaDB® and MongoDB servers to ensure that your data works as efficiently as possible.

Each dashboard graph in PMM contains a lot of information. Sometimes, it is not easy to understand what the plotted line represents. The metric labels and the plotted data are limited and have to account for the space they can use in dashboards. It is …

MySQL Cluster Manager 1.4.4 is now available for download from My Oracle Support.

What’s new?
With MCM 1.4.4 we continue to improve on MySQL Cluster Manager, specifically around:

• the collect logs command
• process status reporting
• process command execution in specific scenarios

More details
More details are available in the MCM 1.4.4 Release Notes.…