You may have read MyRocks Use Case: Big Dataset and been intrigued enough to want to evaluate RocksDB with InnoDB.  It has several advantages including requiring less storage space.

So how do you start?

On a fresh install of Percona Server for MySQL, install RocksDB by entering sudo apt install percona-server-rocksdb:

percona@DellXPS:~$ sudo apt install percona-server-rocksdb
[sudo] password for percona:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
percona-server-rocksdb
0 upgraded, 1 newly installed, 0 to remove and 32 not upgraded.
Need to get 65.3 MB of archives.
After this operation, 292 MB of additional disk space will be used.
Get:1 …

My last blog, Percona Utilities That Make Major MySQL Version Upgrades Easier, detailed the tools available from the Percona toolkit that assists us with major MySQL version upgrades. The pt-upgrade tool aids in testing application queries and generates reports on how each question performs on servers running various versions of MySQL.

MySQL Shell Upgrade Checker is a utility that helps in compatibility tests between MySQL 5.7 instances and MySQL 8.0 upgrades, which is part of the mysql-shell-utilities. The util.checkForServerUpgrade() function checks whether the MySQL 5.7 instance is ready for the MySQL 8.0 upgrade and generates a report with warnings, errors, and notices for preparing the current MySQL 5.7 setup for upgrading to MySQL 8.0.

We can run this Upgrade Checker Utility in the current MySQL 5.7 …

With the economy slowing down and inflation raging in many parts of the world, your organization will love you if you find ways to reduce the costs of running their MySQL databases. This is especially true if you run MySQL in the cloud, as it often allows you to see the immediate effect of those savings, which is what this article will focus on.

With so many companies announcing layoffs or hiring freezes, optimizing your costs may free enough budget to keep a few team members on or hire folks your team needs so much. 

1. Optimize your schema and queries

While optimizing schema and queries is only going to do so much to help you to save on MySQL costs in the cloud, it is a great thing to start with. Suboptimal …

Percona XtraDB Cluster (PXC) is a database clustering solution for MySQL. It ensures high availability, prevents downtime and data loss, and provides linear scalability for a growing environment.

Lately, the number of questions about how to build Percona software has increased. More and more people try to add their own patches, add some modifications, and build software by themselves. But this raises the question of how to do this in the same way as Percona does, as sometimes the compiler flag can make a drastic impact on the final binary. This is a really essential question and let’s look at how we build Percona XtraDB Cluster here at Percona.

At the first glance, the building process is not something difficult. Everyone knows that magic make install all command and suppose that as a result everything will be …

In Percona Server for MySQL 8.0.29-21, we added one more patch that helps us to build server code on macOS. To be precise here, we still could do this even before this patch but only partially. Now it is possible to build RocksDB Storage Engine as well.

A word of disclaimer here, at the moment, by macOS we still understand macOS for Intel x86_64 architecture (the most recent ARM versions with Apple M1 / M2 processors are out of the scope of this blog post). Moreover, Percona does not provide …

In part one and part two of this series, we introduced the different ways to manage MySQL configurations and precedence when using the Percona XtraDB Cluster (PXC) object and ConfigMap. In this post, we will see the precedence when secrets are used for MySQL configurations in Percona Operator for MySQL based on Percona XtraDB Cluster.

CASE-4: Secret with name cluster1-pxc and ConfigMap with name cluster1-pxc but without configuration in PXC object

When the MySQL configuration is present in the ConfigMap and secret but not in the PXC …

In part one of this series, we introduced the different ways to manage MySQL configurations. In this post, we will walk through different possibilities and the changes happening while modifying MySQL configurations with the operator.

Percona Distribution for MySQL Operator based on Percona XtraDB Cluster (PXC) provides three ways for managing MySQL, but the question is, what is the precedence among options? We will walk through several cases of using MySQL configs. For the sake of simplicity, we will play with the values of the Galera cache to see the effects.

configuration: |
   [mysqld] …

In this blog, I will cover important aspects which you need to test when benchmarking replication setup. MySQL has great tools that could be used to test its performance. They include:

sysbench – https://github.com/akopytov/sysbench

BMK-kit – http://dimitrik.free.fr/blog/posts/mysql-perf-bmk-kit.html

mysqlslap – https://dev.mysql.com/doc/refman/8.0/en/mysqlslap.html

LinkBench – https://github.com/facebookarchive/linkbench

I will not describe how to use them here, as you can find instructions on the provided links or in the Percona blog by browsing tags …

Introduction/FAQ

Question: I need to run a production-grade open source MySQL DB.

Answer: Percona to the rescue! Percona XtraDB Cluster (PXC) is an open source enterprise MySQL solution that helps you to ensure data availability for your applications while improving security and simplifying the development of new applications in the most demanding public, private, and hybrid cloud environments

Question: I forgot to mention that I need to run it on Kubernetes.

Answer: Percona to the rescue again! Percona Distribution for MySQL Operator based on Percona XtraDB Cluster contains everything you need to quickly and consistently deploy and scale Percona XtraDB …

When we run a SELECT in a replica server and it returns a different result to the one we would have obtained had we queried the source server instead, due to changes in the dataset that have not yet been replicated or synchronized to the replica, we get what is known as a stale read. My colleague Marcelo has blogged about Stale Reads and How to Fix Them before.

The need to avoid stale reads is a constraint that leads people into migrating to Percona XtraDB Cluster (PXC) / Galera Cluster or, more recently, Group Replication. I am focusing on PXC and Galera in this short blog post, which, similar to Group Replication, implements not exactly a synchronous replication model but what is commonly referred to as a …