Some weeks ago I had to migrate some independent MySQL servers (some standard MySQL masters, and some just standalone) to a Percona XtraDB Cluster of 3 nodes. So the easiest way would be to configure each node to become also an asynchronous slave of one of the production servers. Like illustrated here: But in this […]
Migrating several single standalone MySQL server to one Percona XtraDB Cluster… MariaDB to the rescue !
The Web And PHP Magazine just published an article describing Percona XtraDB Cluster written by Liz van Dijk and Kenny Gryp. It is a pretty high-level introduction to the technology, so definitely give it a read if you’ve been wanting to give it a closer look. Go to their website http://www.webandphp.com and download Issue number 9 for free! […]
On Monday I will deliver with Seppo Jaakola from Codership a tutorial on Percona XtraDB Cluster (Percona Server + Galera). Already in London and you don’t know how to consume the hotel’s bandwidth ? If you attend this tutorial, you can download the Virtual Box appliance we will use during the session.
I learn more and more about Galera every day. As I learn more, I try to keep my myq_gadgets toolkit up to date with what I consider is important to keep any eye on on a PXC node. In that spirit, I just today pushed some changes to the ‘wsrep’ report, and I thought I’d go over […]
If you are interested by a great and revolutionary HA solution for MySQL or even if you already have some experience with PXC and/or Galera, I invite you to attend the tutorial I will deliver in Percona Live MySQL Conference London 2012 (PLUK2012), December 3rd : Percona XtraDB Cluster in a nutshell. Small amount of […]
I have addressed previously how multi-node writing causes unexpected deadlocks in PXC, at least, it is unexpected unless you know how Galera replication works. This is a complicated topic and I personally feel like I’m only just starting to wrap my head around it. The magic of Galera replication The short of it is that Galera […]
Percona is glad to announce the release of Percona XtraDB Cluster on November 15th, 2012. Binaries are available from downloads area or from our software repositories. Features: Percona XtraDB Cluster has ported Twitter’s MySQL NUMA patch. This patch implements improved NUMA support as it prevents imbalanced memory allocation across NUMA nodes. Number of binlog files […]
Thanks for all, who attended my webinar, I got many questions and I wanted to take this opportunity to answer them. Q: Even ntp has a delay of 0.3-0.4 between servers does that mean a 0.25 as from logs can be an issue ? A: My demo vms were running for a few hours before […]
As of Percona Toolkit v2.1.5, pt-table-checksum works correctly with Percona XtraDB Cluster, but it doesn’t work quite like a traditional replication setup because cluster nodes are not like traditional replicas. In this post I demonstrate how to use pt-table-checksum with Percona XtraDB Cluster. First, you’ll need Percona Toolkit v2.1.5 or newer and Percona XtraDB Cluster 5.5.27-23.6 […]
On Percona Live New York I’ll be giving two talks “Percona XtraDB Cluster: HA solution for MySQL”. I will give introduction in MySQL clustering and show how Percona XtraDB Cluster solves HA and scalability problems. MySQL and SSD: usage and tuning. If you follow this blog, you know that I do quite a bit experiments […]