In this post, we’ll look at scaling Percona XtraDB Cluster with ProxySQL in Docker Swarm.

In my previous post, I showed how to employ Percona XtraDB Cluster on multiple nodes in a Docker network.

The intention is to be able to start/stop nodes and increase/decrease the cluster size dynamically. This means that we should track running nodes, but also to have an easy way to connect to the cluster.

So there are two components we need: service discovery to register nodes and ProxySQL to handle incoming traffic.

The work with service discovery is already bundled with Percona …

As Morgan announced it his blog post related to new defaults in 5.7, in 5.7.7 and newer the default value of sync_binlog is now 1.

This of course has an impact on performance especially if you don’t have fast storage like a RAID controller with a cache for example.

Already in O’reilly High Performance MySQL, is was written that the most important setting for binary logging on the master is sync_binlog = 1.

And this recommendation was made for MySQL 5.0 ! At that time the performance impact could reach 50%. In 5.6, with the addition of binary log group commit …

The MySQL developer tools team announces 6.3.7 as our GA release for MySQL Workbench 6.3. 

For the full list of changes in this revision, visit 
http://dev.mysql.com/doc/relnotes/workbench/en/changes-6-3.html 

For discussion, join the MySQL Workbench Forums:
http://forums.mysql.com/list.php?152

Download MySQL Workbench 6.3.7 GA now, for Windows, Mac OS X 10.9+, 
Oracle Linux 6 and 7, Fedora 23 and Fedora 24, Ubuntu 16.04 or sources, from:

http://dev.mysql.com/downloads/tools/workbench/ 

Enjoy!

Security auditing plays important role in the process of securing a database system. Thanks to the MySQL Enterprise Audit extension, we can record all activities, such as client connections and execution of queries into a single log file, for later inspection.…

Learning from facepalm moments of a MySQL database restore from Percona Xtrabackup.

The post MySQL database restore issues using xtrabackup – facepalm moments first appeared on Change Is Inevitable.

Proper MySQL Query Optimization starts with a proper Slow Query Logging session. And MySQL Query Optimization is where I spend 70-80% of my time when doing MySQL performance optimization.

In part 2 here, we will go over the pt-query-digest report, that we have prepared in part 1.

Here’s links to the other two parts:

• Advanced MySQL Slow Query Logging Part 1: the essentials
• Advanced MySQL Slow Query Logging Part 3: fine-tuning the logging process

The post Advanced MySQL Slow Query Logging Part 2: …

Percona is glad to announce the new release of Percona XtraDB Cluster 5.6 on June 10, 2016. Binaries are available from the downloads area or our software repositories.

Percona XtraDB Cluster 5.6.30-25.16 is now the current release, based on the following:

• Percona Server 5.6.30-76.3
• Galera Replication library 3.16
• Codership wsrep API version 25

…

In this post, I’ll discuss how to run Percona XtraDB Cluster in a multi-host Docker network.

With our release of Percona XtraDB Cluster 5.7 beta, we’ve also decided to provide Docker images for both Percona XtraDB Cluster 5.6 and Percona XtraDB Cluster 5.7.

Starting one node is very easy, and not that different from starting Percona Server image. The only an extra requirement is …

Percona is glad to announce the release of Percona Monitoring and Management 1.0.1 Beta on 10 June, 2016.

Like prior versions, PMM is distributed through Docker Hub and is free to download. Full instructions for download and installation of the server and client are available in the documentation.

Notable changes to the tool include:

• Grafana 3.0
• Replaced custom web server with NGINX
• Eliminated most of the ports for PMM server container (now only two – 9001 and configurable 80)
• Updated to the latest versions of …

Percona is glad to announce the release of Percona XtraDB Cluster 5.7.11-4beta-25.14.2 on June 9, 2016. Binaries are available from the downloads area or our software repositories.

NOTE: This beta release is only available from the testing repository. It is not meant for upgrade from Percona XtraDB Cluster 5.6 and earlier versions. Only a fresh installation is supported.

Percona XtraDB Cluster 5.7.11-4beta-25.14.2 is based on the following:

• …