by Anil Joshi | Jan 12, 2026 | Insight for DBAs, MySQL, Percona Software
In this blog post, we will be discussing the PXC Replication Manager script/tool which basically facilitates both source and replica failover when working with multiple PXC clusters, across different DC/Networks connected via asynchronous replication mechanism. Such...
by Fernando Laudares Camargos | Apr 23, 2021 | Insight for DBAs, Insight for Developers, MySQL, Percona Software
Apologies for the silly title, but the issue is a real one, even though it is not a new thing. Schema upgrades are not an ordinary operation in Galera. For the subject at hand, the bottom line is: under the default Total Order Isolation (TOI) method, “the cluster...
by Sveta Smirnova | Jul 28, 2020 | MySQL, Percona Software
I got this question on the “How to Avoid Pitfalls in Schema Upgrade with Percona XtraDB Cluster (PXC)” webinar and wanted to answer it in a separate post. Will RSU have an effect on GTID consistency if replication PXC cluster to another cluster? Answer for...
by Marco Tusa | Nov 15, 2018 | Insight for DBAs, MySQL
Let’s talk about MySQL high availability (HA) and synchronous replication once more. It’s part of a longer series on some high availability reference architecture solutions over geographically distributed areas. Part 1: Reference Architecture(s) for High...
by Marco Tusa | Nov 15, 2018 | Insight for DBAs, MySQL
In this article, we’ll look at an example of an on-premises, geographically distributed MySQL high availability solution. It’s part of a longer series on some high availability reference architecture solutions over geographically distributed areas. Part 1:...
by Colin Charles | Feb 2, 2018 | Insight for DBAs, MariaDB, MongoDB, MySQL, Percona Events, Percona Live, Percona Software, PostgreSQL
Join Percona Chief Evangelist Colin Charles as he covers happenings, gives pointers and provides musings on the open source database community. Percona Live Santa Clara 2018 update: tutorials have been picked, and the schedule/press release should be announced by next...
by Dave Avery | Jun 19, 2017 | Insight for DBAs, MySQL, Percona Software, Webinars
Join Percona’s MySQL Practice Manager Kenny Gryp and QA Engineer, Ramesh Sivaraman as they present a high availability webinar around Percona XtraDB Cluster, Galera Cluster, MySQL Group Replication on Wednesday, June 21, 2017 at 10:00 am PDT / 1:00 pm EDT (UTC-7)....
by Vadim Tkachenko | Sep 17, 2015 | MariaDB, MySQL, Percona Software
Recently Aphyr (Kyle Kingsbury) published https://aphyr.com/posts/327-call-me-maybe-mariadb-galera-cluster The article is technically valid, I am not going to dispute a conclusion Aphyr made, but it is also quite technically involved, so users who just jump to...
by Frederic Descamps | Jul 31, 2014 | MariaDB, MySQL, Percona Software
In the first post in a series on MariaDB features we find interesting, we begin with selectively skipping replication of binlog events. This feature is available on MariaDB 5.5 and 10. By default when using MySQL’s standard replication, all events are logged in...
by Stephane Combaudon | Jul 21, 2014 | Insight for DBAs, MySQL, Percona Software
I recently worked on a case where one node of a Galera cluster had its schema desynchronized with the other nodes. And that was although Total Order Isolation method was in effect to perform the schema changes. Let’s see what happened. Background For those of...
