Multi-master data conflicts - Part 2: dealing with conflicts
Source:  Continuent blogs: The Scale-out, The Data Charmer, Flying Clusters and Continuent Tungsten blogs
Wednesday, 27 March 2013 05:00

In the first part of this article (http://datacharmer.blogspot.com/2013/03/multi-master-data-conflicts-part-1.html) we examined the types of conflicts and their causes. In this part, we will analyse some of the methods available to deal with conflicts. Pessimistic locking (or: conflicts won't happen)Applicability: synchronous clusters with 2pcWe've covered this topic in the previous article, but ...


Don't miss these Continuent Tungsten clustering and replication talks at Percona Live MySQL Conference & Expo
Source:  Continuent blogs: The Scale-out, The Data Charmer, Flying Clusters and Continuent Tungsten blogs
Tuesday, 26 March 2013 08:52




Multi-master data conflicts - Part 1: understanding the problem
Source:  Continuent blogs: The Scale-out, The Data Charmer, Flying Clusters and Continuent Tungsten blogs
Monday, 25 March 2013 17:00

What is a conflict?Readers of this blog know that one of my favorite tools, Tungsten Replicator (http://tungsten-replicator.org), can easily create multi-master replication topologies, such as all-masters, star, fan-in. While this is good news for system designers and ambitious DBAs, it also brings some inconvenience. When you allow updates to happen in more than one master, you risk having confli...


Tungsten University: Zero-Downtime MySQL Maintenance And Schema Operations
Source:  Continuent blogs: The Scale-out, The Data Charmer, Flying Clusters and Continuent Tungsten blogs
Thursday, 21 March 2013 06:42




Tungsten University: Zero-Downtime Maintenance And Schema Operations
Source:  On Demand Webinars
Thursday, 21 March 2013 00:00

Do you know how to do rolling maintenance on your database hosts so you can make changes without stopping applications? How about upgrading schema and applications themselves? Tungsten clusters have a host of features that can help you with everything from basic administration to complex application upgrades. This webinar will show you the different types of administration you ne...


Get a FREE pass to MySQL Conference & Expo (a $1,599 value)
Source:  Continuent blogs: The Scale-out, The Data Charmer, Flying Clusters and Continuent Tungsten blogs
Friday, 15 March 2013 06:30




Sessions at Percona Live MySQL Conference 2013: fun, competition, novelties, and a free pass
Source:  Continuent blogs: The Scale-out, The Data Charmer, Flying Clusters and Continuent Tungsten blogs
Tuesday, 12 March 2013 09:30

Percona Live MySQL Conference and Expo 2013 (http://www.percona.com/live/mysql-conference-2013/) is almost 1 month away. It's time to start planning, set the expectations, and decide what to attend. This post will give a roundup of some of the sessions that I recommend attending and I look forward to. First, the unexpected!After much talk and disbelief, here they come! Oracle (http://www.mysql.co...


Deploying remote MySQL sandboxes
Source:  Continuent blogs: The Scale-out, The Data Charmer, Flying Clusters and Continuent Tungsten blogs
Monday, 11 March 2013 10:34

Stating the problem.In my job, I do a lot of testing. And no matter how much organized we try to be, we end up with fewer machines than we would need to run all the tests that we want.For some tasks, we can run MySQL Sandbox (http://mysqlsandbox.net), and get the job done. But sometimes we need to make sure that applications and systems work well across the network, and we need to install and run ...


North East Linux Fest and Open Database Camp - Boston, March 16-17 2013
Source:  Continuent blogs: The Scale-out, The Data Charmer, Flying Clusters and Continuent Tungsten blogs
Sunday, 10 March 2013 13:24

On Thursday, I will travel to Boston, MA, to attend the Northeast LinuxFest (http://northeastlinuxfest.org/), which includes also an edition of the Open Database Camp (http://www.opensqlcamp.org/index.php?title=Events/NELF2013/). The events will be at one of my favorite places on earth: The Massachusetts Institute of Technology, a.k.a. the MIT. Every time I speak at an event there, I feel at home,...


Tungsten University: Set up and manage advanced replication topologies
Source:  Continuent blogs: The Scale-out, The Data Charmer, Flying Clusters and Continuent Tungsten blogs
Wednesday, 06 March 2013 10:13