MySQL does not limit the number of slaves that you can connect to the master server in a replication topology. However, as the number of slaves increases, they will have a toll on the master resources because the binary logs will need to be served to different slaves working at different speeds. If the data churn on the master is high, the serving of binary logs alone could saturate the network interface of the master.

A classic solution for this problem is to deploy a binlog server – an intermediate proxy server that sits between the master and its slaves. The binlog server is set up as a slave to the master, and in turn, acts as a master to the original set of slaves. It receives binary log events from the master, does not apply these events, but serves them to all the other slaves. This way, the load on the master is tremendously reduced, and at the same time, the binlog server serves …

Database backups are a fundamental requirement in almost every implementation, no matter the size of the company or the nature of the application. Taking a backup should be a simple task that can be automated to ensure it’s done consistently and on schedule. Percona has an enterprise-grade backup tool, Percona XtraBackup, that can be used to accomplish these tasks. Percona also has a Percona Kubernetes Operator for Percona XtraDB Cluster (PXC Operator), which has Percona XtraBackup built into it. Percona XtraBackup has the ability for both automated and on-demand backups. Today we will explore taking backups and restoring these backups using the PXC Operator deployed …

MinervaDB Webinar – Building MySQL Database Infrastructure for Performance and Reliability

Recently I did a webinar on ” Building MySQL Database Infrastructure for Performance and Reliability ” , It was big success and thought will share the slides of webinar in this blog. I get lot of emails daily from Database Architects, DBAs, Database Engineers, Technical Managers and Developers worldwide on best practices and checklist to build MySQL for performance, scalability, high availability and database SRE, The objective of this webinar is to share with them a cockpit view of MySQL infrastructure operations from MinervaDB perspective. Database Systems are growing faster than ever, The modern datanomy businesses like Facebook, Uber, Airbnb, LinkedIn etc. are powered by Database Systems, This makes Database Infrastructure operationally complex and we can’t technically scale such systems with eyeballs. Building MySQL …

Today is a good day for me. Today I tweeted that MySQL after 25 years is still GPL and same for all important components: the server, the shell, the router, the clone plugin, workbench !

To be honest, Oracle has been a very good steward for MySQL so far, PZ and Kaj admitted it too. This exactly what I was thinking when I joined the MySQL family and I’m still convinced about it after 4 years… and never as much as now !

If you know me, you should know that for more than 20 years I always praised and defended Open Source! All kind, not only MySQL! I started of course with Linux and then a huge amount of projects where I dedicated time, docs, code, bug reports, chats… As you know I also worked for Stone-IT, X-tend, …

Percona Training Is Here for You!

Percona’s Training and Education Department wants you! For the past three years, Percona has quietly been delivering world-class training all over the globe, to companies large and small. We are in full force and ready to spread our knowledge directly to your organization to make your staff the absolute best they can become.

As you probably know, Percona has been one of the top leaders in the open source database space for over ten years. Our experts are exactly that: experts. Our MySQL and open source database training programs leverage the cumulative knowledge and best practices gained from our years of experience working on real-world issues and solving problems for our customers. When you enroll in our courses, we transfer our knowledge and experience to you and your team.

Why Should My Company Invest in Training?

The purpose of this post if to show how you can automate the creation and pruning of partitioned tables. If you want to read about partitioning I recommend reading our manual.

In short partitioning makes it possible to spread your individual tables across a file system according to the partition rules you specify.

Reasons for partition your tables might be:
- Insert performance, smaller index trees for stable insert throughput.
- Select performance, only read data from selected (aka partitioning pruning) partitions.
- Delete performance, drop partitioning is must quicker than doing range deletes of old data.

Partitioning definitions is part for the CREATE/ALTER table statements, in …

Dual-password capability makes it possible to seamlessly perform credential changes without downtime.

The post MySQL Security - Dual Password Support first appeared on dasini.net - Diary of a MySQL expert.

ProxySQL is proud to announce the fast track release of the latest stable version of ProxySQL 2.0.12 on 18th of May 2020

ProxySQL is a high performance, high availability, protocol aware proxy for MySQL, with a GPL license! It can be downloaded here or alternatively from the ProxySQL Repository, and freely usable and accessible according to the GNU GPL v3.0 license.

Release Overview Highlights Enhancements

• Added tracking capability for variable group_concat_max_len #2709
• Do not compile if GIT_VERSION is not set #2768
• Several new automated …

Percona has enforced stronger security in Percona XtraDB Cluster (PXC) 8, but this requires some attention during the rollout of the new server version, so let see the why and what.

In PXC there are two different kinds of traffic: client-server exchange (ie: application traffic), and replication traffic. The latter refers to any SST/IST, write-set, and other service messages the nodes exchange.

In PXC 5.7 it is possible to activate SSL encryption by enabling the variable pxc-encrypt-cluster-traffic by following the instructions.

In PXC 8, we choose to enable encryption by default on all replication traffic, to have the highest out-of-box security enforcement.

While this is an obvious …

During this webinar, Tyler Duzan, Product Manager for MySQL and Cloud at Percona, will discuss Percona’s decision to delay Percona XtraDB Cluster 8.0 to ship it with Galera 4 instead of Galera 3, and why that matters. In addition, he’ll talk about the work done to integrate MySQL 8.0 features with Galera as well as how Percona is treating Kubernetes as one of its primary target platforms with this release. This webinar will provide an overall view of the current state of best-in-breed MySQL clustering as well as the Percona roadmap for the future.

Please join Tyler Duzan of Percona, on Tuesday, May 26 at 11 am EDT for his webinar “What’s New in Percona XtraDB Cluster (PXC) 8.0?”.

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