Breakout sessions are in full swing at the Percona Live Open Source Database Conference 2017. Check out what’s new in MySQL 8.0.

We’ve finished with this morning’s sessions, and this morning saw a lot of amazing open source talks. One of the most well-attended was MySQL 8.0: Major New Features given by Geir Høydalsvik, Senior Software Development Director at Oracle. MySQL is the next major version of the MySQL platform from Oracle, the open source community is expectantly waiting for the official release.

In this session, Geir described many of the new features announced for MySQL 8.0. In addition to Data Dictionary, CTEs and Windows functions, …

Welcome to the first day of the Percona Live Open Source Database Conference 2017, and the first set of Percona Live keynotes!

It’s a beautiful day in Santa Clara, but we don’t know because we’re inside the Hyatt Regency Convention Center listening to various rock stars in the open source database community talk about open source technologies. Day one of the conference kicked off with four keynote talks, all of which discussed issues and technologies that are addressed by open source solutions:

Percona Welcoming Keynote

Peter Zaitsev (Percona)

Peter Zaitsev, CEO of Percona, welcomed everyone to Percona Live Open Source …

In this tutorial, I will guide you how to install and configure the new stable MySQL 5.7 version on CentOS 7 server and Ubuntu 16.04 server. MySQL is an open source relational database management system developed by Oracle corporation. The source code is released under GNU General Public License.

Welcome to the first day of the Percona Live Open Source Database Conference: Percona Live 2017 tutorials day! While technically the first day of the conference, this day focused on provided hands-on tutorials for people interested in learning directly how to use open source tools and technologies.

Today attendees went to training sessions taught by open source database experts and got first-hand experience configuring, working with, and experimenting with various open source technologies and software.

The first full day (which includes opening keynote speakers and breakout sessions) starts Tuesday 4/25 at 9:00 am.

Some of the …

In this blog post, we’ll look at how we’ve improved wsrep-stages and related instrumentation in Percona XtraDB Cluster.

Introduction

When you execute a workload and need to find out what the given thread is working on, “SHOW PROCESSLIST” comes to the top of your mind. It is an effective way to track the thread status. We decided to improve the stages in Percona XtraDB Cluster to make “SHOW PROCESSLIST” more meaningful.

In the blog below, we will check out the different wsrep-stages and the significance associated with them.

Loading of data

Running a simple insert/sysbench prepare workload. The state is stable as it mainly captures …

I’m in Santa Clara at the Percona Live Conference and Expo.  I have been here less than 24 hours, but I have already had conversations with many fellow DBAs, some that I have met and worked with before, and others whom I am meeting for the first time.  It has been three years since my last visit, but being here shows you that as an Open Source DBA, you’re in sort of a “big family” of like minded, top notch, professionals.

I am proud to be an open source DBA because of our apparent values, values you see in almost everyone when you come to an event like this.

Who are we as Open Source DBAs ?

• We are system experts.  Open source DBAs know their operating system.  They are not only focused on the database.
• We are developers.  We contribute to source code within …

From MySQL 8.0, utf8mb4 is the default character set, and the default collation for utf8mb4 is utf8mb4_0900_ai_ci. MySQL 8.0 is also coming with a whole new set of Unicode collations for the utf8mb4 character set.

This will allow use of the complete Unicode 9.0.0 character set in MySQL, and for new applications this is great news.…

Thanks to everyone who participated in our recent webinar on High Availability in ProxySQL and on how to build a solid, scalable and manageable proxy layer using ProxySQL for highly available MySQL infrastructures.

This second joint webinar with ProxySQL creator René Cannaò saw lots of interest and some nice questions from our audience, which we’re sharing below with this blog post as well as the answers to them.

Building a highly available proxy layer creates additional challenges, such as how to manage multiple proxy instances, how to ensure that their configuration is in sync, Virtual IP and fail-over; and more, which we’ve covered in this webinar with René. And we demonstrated how you can make your ProxySQL highly available when deploying it from ClusterControl (download & try it free).

If you missed the …

As a stored procedures fan, I use MySQL stored procedures to get some of my DBA tasks accomplished. To make it simple, I have a template stored procedure that can be customized for several purposes.
The template syntax contains cursor, continue handler, loop, if condition and prepared statement. Thought it may be useful for others – at least, who are searching for the MySQL Stored Procedure syntax – so I’m publishing this post!

Use case: Reorganize tables partition:

In MySQL Cluster, it is required to reorganize all NDB tables’ partitions after adding new data nodes to rebalance the data across all nodes. Also the tables need to be optimized afterwards to reclaim the memory space. For this task I use the following procedure:

DROP PROCEDURE IF EXISTS reorganize_tables;
DELIMITER //
CREATE PROCEDURE reorganize_tables (IN db_name VARCHAR(50))
BEGIN


…

MySQL 8.0.1 introduces a new mechanism to track the dependencies between transactions. This feature is used to optimize the binary log applier on asynchronous replication slaves, improving the throughput significantly on workloads where there is low-concurrency on the master and/or on systems with very fast storage.…