Percona XtraDB Cluster

ProxySQL 1.4.9 and Updated proxysql-admin Tool Now in the Percona Repository

ProxySQL 1.4.11

ProxySQL 1.4.9, released by ProxySQL, is now available for download in the Percona Repository along with an updated version of Percona’s proxysql-admin tool.
ProxySQL is a high-performance proxy, currently for MySQL and its forks (like Percona Server for MySQL and MariaDB). It acts as an intermediary for client requests seeking resources from the database. René Cannaò created […]

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Linux OS Tuning for MySQL Database Performance

Linux OS tuning for MySQL database performance

In this post we will review the most important Linux settings to adjust for performance tuning and optimization of a MySQL database server. We’ll note how some of the Linux parameter settings used OS tuning may vary according to different system types: physical, virtual or cloud. Other posts have addressed MySQL parameters, like Alexander’s blog MySQL […]

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Percona XtraDB Cluster 5.7.22-29.26 Is Now Available

Percona XtraDB Cluster 5.7

Percona announces the release of Percona XtraDB Cluster 5.7.22-29.26 (PXC) on June 29, 2018. Binaries are available from the downloads section or our software repositories.
Percona XtraDB Cluster 5.7.22-29.26 is now the current release, based on the following:

Percona Server for MySQL 5.7.22
Galera/Codership WSREP API Release 5.7.21
Galera Replication library 3.23

Deprecated
The following variables are deprecated starting from this […]

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Running Percona XtraDB Cluster in Kubernetes/OpenShift

Diagram of Percona XtraDB Cluster / MySQL running in Kubernetes Open Shift

Kubernetes, and its most popular distribution OpenShift, receives a lot of interest as a container orchestration platform. However, databases remain a foreign entity, primarily because of their stateful nature, since container orchestration systems prefer stateless applications. That said, there has been good progress in support for StatefulSet applications and persistent storage, to the extent that […]

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Lock Down: Enforcing SELinux with Percona XtraDB Cluster

SELinux for PXC security

Why do I spend time blogging about security frameworks? Because, although there are some resources available on the Web, none apply to Percona XtraDB Cluster (PXC) directly. Actually, I rarely encounter a MySQL setup where SELinux is enforced and never when Percona XtraDB Cluster (PXC) or another Galera replication implementation is used. As we’ll […]

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Percona XtraDB Cluster 5.6.40-26.25 Is Now Available

Percona XtraDB Cluster 5.7

Percona announces the release of Percona XtraDB Cluster 5.6.40-26.25 (PXC) on June 20, 2018. Binaries are available from the downloads section or our software repositories.
Percona XtraDB Cluster 5.6.40-26.25 is now the current release, based on the following:

Percona Server for MySQL 5.6.40
Galera/Codership WSREP API Release 5.6.39
Galera Replication library 3.23

All Percona software is open-source and free.
New […]

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Webinar Weds 20/6: Percona XtraDB Cluster 5.7 Tutorial Part 2

webinar Percona XtraDB Cluster

Including setting up Percona XtraDB Cluster with ProxySQL and PMM
Please join Percona’s Architect, Tibi Köröcz as he presents Percona XtraDB Cluster 5.7 Tutorial Part 2 on Wednesday, June 20th, 2018, at 7:00 am PDT (UTC-7) / 10:00 am EDT (UTC-4).
Register Now
 
Never used Percona XtraDB Cluster before? This is the webinar for you! In this […]

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PXC loves firewalls (and System Admins loves iptables)

PXC and setting firewalls using iptables

Let them stay together.
In the last YEARS, I have seen quite often that users, when installing a product such as PXC, instead of spending five minutes to understand what to do just run
iptables -F  and save.
In short, they remove any rules for their firewall.
With this post, I want to show you how easy […]

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MySQL Test Framework for Percona XtraDB Cluster

MySQL Test Framework

At my latest webinar “MySQL Test Framework (MTR) for Troubleshooting”, I received an interesting question about MTR test cases for Percona XtraDB Cluster (PXC). Particularly about testing SST and IST.
This post is intended to answer this question. It assumes you are familiar with MTR and can write tests for MySQL servers. If you are […]

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Webinar Tues, 5/29: MySQL, Percona XtraDB Cluster, ProxySQL, Kubernetes: How they work together

Please join Percona’s Principal Architect Alex Rubin as he presents MySQL, Percona XtraDB Cluster, ProxySQL, Kubernetes: How they work together to give you a highly available cluster database environment on Tuesday, May 29th at 7:00 AM PDT (UTC-7) / 10:00 AM EDT (UTC-4).
Register Now
 
In this webinar, Alex will discuss how to deploy a highly […]

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