Post: How to replace a NDB node on EC2
… failure. In an environment like EC2, where a node can disappear almost…IP in the cluster config and perform an rolling restart! no? In … DEFAULT] NoOfReplicas=2 Datadir=/var/lib/mysql-cluster/...
View ArticlePost: Shard-Query EC2 images available
… InnoDB versions are only available on 64 bit instances. MySQL will fail to start on a micro instance, simply…will perform on each database. To do the size comparison, I used the du utility: InnoDB...
View ArticlePost: Distributed set processing performance analysis with ICE 3.5.2pl1 at 20...
… world environment. There is a slight performance oddity at 16 nodes. I suspect the EC2 environment is the reason for this, but it requires further investigation. Next I compared the performance of 20...
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FOSDEM 2012 – MySQL and Friends devroom
2012 is near… and so is the next FOSDEM edition !This year again, MySQL will be represented by its Community.If you want to discuss with friend’s of MySQL it’s the place to be in February !Like every...
View ArticleHow To Test Your Upgrades – pt-upgrade
Upgrades are usually one of the biggest part of any database infrastructure maintenance. Even with enough planning something else can go bad after sending your production application to the version...
View ArticleMaking the impossible: 3 nodes intercontinental replication
In this post I want to show new possibilities which open with Percona XtraDB Cluster. We will create 3 nodes Cluster with nodes on different continents (Europe, USA, Japan) and each node will accept...
View ArticleClarification on MySQL security vulnerability
Contrary to initial reports here and here, further investigation has revealed that under some specific and limited circumstances, Percona Server and Percona XtraDB Cluster binaries, similar to other...
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Percona XtraDB Cluster reference architecture with HaProxy
This post is a step-by-step guide to set up Percona XtraDB Cluster (PXC) in a virtualized test sandbox. I used Amazon EC2 micro instances, but the content here is applicable for any kind of...
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MySQL Backup tools used by Percona Remote DBA for MySQL
As part of Percona Remote DBA for MySQL service we recognize that reliable backups are one of the most important things we can bring to the table. In my experience handling emergencies, the single...
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Amazon RDS with MySQL 5.6 – Configuration Variables
One longstanding complaint I have heard for the past several years, and still hear today, is that Amazon’s Relational Database Service (RDS) does not allow the configuration flexibility as running...
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MySQL Security Webinar: Follow-up Q&A
Thanks to everyone who attended last week’s webinar on MySQL security; hopefully you’ve all gone out and set SELinux to enforcing mode if you weren’t already running that way. If you weren’t able to...
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Running MySQL 5.6 on Amazon RDS: Webinar followup questions answered
Thanks to everyone who attended last week’s webinar, Running MySQL 5.6 on Amazon RDS.” If you weren’t able to attend, the recording and slides are available for viewing/download (or, if you were able...
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MySQL performance on EC2/EBS versus RDS
A while ago I started a series of posts showing benchmark results on Amazon EC2 servers with RAID’ed EBS volumes and MySQL, versus RDS machines. For reasons that won’t add anything to this discussion,...
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InnoDB scalability issues due to tables without primary keys
Each day there is probably work done to improve performance of the InnoDB storage engine and remove bottlenecks and scalability issues. Hence there was another one I wanted to highlight:Scalability...
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MySQL encryption performance, revisited
This is part two on a two-part series on the performance implications of in-flight data encryption with MySQL. In the first part, I focused specifically on the impact of using MySQL’s built-in SSL...
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8 common (but deadly) MySQL operations mistakes and how to avoid them
January 22 I gave a presentation on “How to Avoid Common (but Deadly) MySQL Operations Mistakes” for Percona MySQL Webinars. If you missed it, you can still register to view the recording and my...
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How to create a new Percona XtraDB Cluster with ClusterControl
We recently announced Percona ClusterControl supplied in partnership with Severalnines. This enterprise-grade cluster management and monitoring software is available with a Percona Support contract...
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A technical WebScaleSQL review and comparison with Percona Server
The recent WebScaleSQL announcement has made quite a splash in the MySQL community over the last few weeks, and with a good reason. The collaboration between the major MySQL-at-scale users to develop a...
View ArticleSemi-Sync replication performance in MySQL 5.7.4 DMR
I was interested to hear about semi-sync replication improvements in MySQL’s 5.7.4 DMR release and decided to check it out. I previously blogged about poor semi-sync performance and was pretty...
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Sysbench Benchmarking of Tesora’s Database Virtualization Engine
Tesora, previously called Parelastic, asked Percona to do a sysbench benchmark evaluation of its Database Virtualization Engine on specific architectures on Amazon EC2.The focus of Tesora is to provide...
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