# Percona Server for MySQL

Percona Server for MySQL is a free, compatible, enhanced open-source drop-in replacement for MySQL that provides performance, scalability, and instrumentation.

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## Group Replication Beyond a Single Cluster: DC-DR with Percona (PS MySQL) Operator

DevFeed: [Group Replication Beyond a Single Cluster: DC-DR with Percona (PS MySQL) Operator](<https://devfeed.tech/articles/group-replication-beyond-a-single-cluster-dc-dr-with-percona-ps-mysql-operator-35041.md>)

Original publisher: [Read original article](<https://www.percona.com/blog/group-replication-beyond-a-single-cluster-dc-dr-with-percona-ps-mysql-operator/>)

Author: Anil Joshi

Published: 2026-09-17T06:43:32Z

Content type: tutorial

Language: en

Sources: [Blog - Percona](<https://devfeed.tech/sources/blog-percona.md>)

Topics: [Replication](<https://devfeed.tech/topics/replication.md>), [export](<https://devfeed.tech/topics/export.md>), [Percona Server for MySQL](<https://devfeed.tech/topics/percona-server-for-mysql.md>), [configuration](<https://devfeed.tech/topics/configuration.md>), [Server](<https://devfeed.tech/topics/server.md>), [Kubernetes](<https://devfeed.tech/topics/kubernetes.md>), [Database](<https://devfeed.tech/topics/database.md>)

Tags: [cloud](<https://devfeed.tech/tags/cloud.md>), [configuration](<https://devfeed.tech/tags/configuration.md>), [database-trends](<https://devfeed.tech/tags/database-trends.md>), [featured](<https://devfeed.tech/tags/featured.md>), [innodb-clusterset](<https://devfeed.tech/tags/innodb-clusterset.md>), [insight-for-dbas](<https://devfeed.tech/tags/insight-for-dbas.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [kubernetes-operators](<https://devfeed.tech/tags/kubernetes-operators.md>), [mysql](<https://devfeed.tech/tags/mysql.md>), [mysql-group-replication](<https://devfeed.tech/tags/mysql-group-replication.md>), [mysql-high-availability](<https://devfeed.tech/tags/mysql-high-availability.md>), [mysql-replication](<https://devfeed.tech/tags/mysql-replication.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [operator](<https://devfeed.tech/tags/operator.md>), [percona-kubernetes-operators](<https://devfeed.tech/tags/percona-kubernetes-operators.md>), [percona-operator-for-mysql](<https://devfeed.tech/tags/percona-operator-for-mysql.md>), [percona-server-for-mysql](<https://devfeed.tech/tags/percona-server-for-mysql.md>), [percona-software](<https://devfeed.tech/tags/percona-software.md>), [replication](<https://devfeed.tech/tags/replication.md>), [uncategorized](<https://devfeed.tech/tags/uncategorized.md>), [yaml](<https://devfeed.tech/tags/yaml.md>)

### AI overview

This tutorial explains how to configure cross-site replication between two Percona Operator for MySQL clusters to create a ClusterSet environment for disaster recovery and switchover between data-center and disaster-recovery members. It covers deploying the clusters, retrieving endpoints and cluster names, transferring credentials, and initializing the DR cluster.

### Source excerpt

A while ago, we discussed the cross-site replication feature of the Percona PXC operator. Recently, a similar cross-site replication feature was introduced in the Percona (PS MySQL) operator v1.2.0, a topology based on Group Replication/InnoDB Cluster. In this blog post, we will explore how to add a DR Cluster to an existing DC Cluster to ... Continued The post Group Replication Beyond a Single Cluster: DC-DR with Percona (PS MySQL) Operator appeared first on Percona.

## Performance improvements in Percona Server 8.4.11-11

DevFeed: [Performance improvements in Percona Server 8.4.11-11](<https://devfeed.tech/articles/performance-improvements-in-percona-server-8-4-11-11-26780.md>)

Original publisher: [Read original article](<https://www.percona.com/blog/performance-improvements-in-percona-server-8-4-11-11/>)

Author: Bogdan Degtyariov

Published: 2026-09-15T11:52:54Z

Content type: article

Language: en

Sources: [Blog - Percona](<https://devfeed.tech/sources/blog-percona.md>)

Topics: [Percona Server for MySQL](<https://devfeed.tech/topics/percona-server-for-mysql.md>), [Percona](<https://devfeed.tech/topics/percona.md>), [MySQL](<https://devfeed.tech/topics/mysql.md>), [Cache](<https://devfeed.tech/topics/cache.md>), [Scalability](<https://devfeed.tech/topics/scalability.md>), [Database](<https://devfeed.tech/topics/database.md>)

Tags: [benchmark](<https://devfeed.tech/tags/benchmark.md>), [benchmarks](<https://devfeed.tech/tags/benchmarks.md>), [cache](<https://devfeed.tech/tags/cache.md>), [io](<https://devfeed.tech/tags/io.md>), [mysql](<https://devfeed.tech/tags/mysql.md>), [percona](<https://devfeed.tech/tags/percona.md>), [percona-server-for-mysql](<https://devfeed.tech/tags/percona-server-for-mysql.md>), [performance](<https://devfeed.tech/tags/performance.md>), [scalability](<https://devfeed.tech/tags/scalability.md>)

### AI overview

This article describes performance and scalability improvements in Percona Server for MySQL 8.4.11-11, focusing on changes to the InnoDB buffer pool and page flushing. It explains how narrowing mutex coverage and using finer-grained latching allows physical reads to proceed more in parallel, particularly for read-heavy, I/O-bound workloads.

### Source excerpt

Focusing on Percona Server 8.4.11-11 My previous post (Performance Progression of Percona Server for MySQL 8.4) did a brief review of the performance changes in Percona Server for MySQL 8.4 released in 2026. I recommend reading it first to better understand the material in this post. Version 8.4.11-11 includes patches that deliver significant improvements in ... Continued The post Performance improvements in Percona Server 8.4.11-11 appeared first on Percona.