If you were unable to attend the live webinar (or you want to go back and listen to it again) then it’s now available to view on-line here.

Databases are the center of today’s web and enterprise applications, storing and protecting an organization’s most valuable assets and supporting business-critical applications. Just minutes of downtime can result in significant lost revenue and dissatisfied customers. Ensuring database highly availability is therefore a top priority for any organization. Tune into this webcast to learn more.

The session discusses:

Detecting conflicts

Part of the latest MySQL Cluster Development Milestone Release (MySQL Cluster 7.2.1 – select the “Development Release” tab at http://dev.mysql.com/downloads/cluster/#downloads) is a couple of enhancements to the conflict detection and resolution mechanism for active-active (multi-master) replication. While MySQL Cluster has had conflict detection for years it has now been made much more complete and a lot easier to

The binary version for MySQL Cluster 7.1.17 has now been made available at http://www.mysql.com/downloads/cluster/ (http://www.mysql.com/downloads/cluster/" target="_blank) (GPL version) or https://support.oracle.com/ (commercial version)

A description of all of the changes (fixes) that have gone into MySQL Cluster 7.1.17 (compared to 7.1.15a) can be found by combining the summaries from the official MySQL Cluster documentation for Cluster – 7.1.16 Change log & 7.1.17 Change log.

Today we will get MySQL Cluster running on a single node.

A few years ago I created as presentation on running MySQL Cluster 5.1 on a laptop using Virtualbox that has proven to be the most popular download from NorthTexasMySQL.org with over nine hundred downloads.  Now MySQL 7.2 is in development milestone release and I find that I have some catching up to do.

Those of you with access to the Carrier Grade Edition (CGE) of Cluster, check out MySQL Cluster Manager 1.1 and Andrew Morgan’s  blog.  You can set up a cluster with minimal editing of configuration files or perform online software upgrades.

But MySQL Cluster 7.2 from

One of the great things about the HTTP protocol, besides status code 418, is that it's stateless. A web server therefore is not required to store any information on the user or allocate resources for a user after the individual request is done. By that a single web server can handle many many many different users easily, and well if it can't anymore one can add a new server, put a simple load balancer in front and scale out. Each of those web servers then handles its requests without the need for communication which leads to linear scaling (assuming network provides enough bandwidth etc.).

Now the Web isn't used for serving static documents only anymore but we have all these fancy web apps. And those applications often have the need for a state. The most trivial information they need is the current user.

Data Node Restarted alert

About 11 months ago I described the MySQL Cluster functionality that was added to MySQL Enterprise Monitor 2.3; this new post is intended to just bring this up to date – briefly describing the new graph and advisors which have been added since then (up to and including MEM 2.3.7).

Cluster Data Node Has Been Restarted

This new alert flags when a data node has been

There’s a webinar this Wednesday (9 am Pacific; 5 pm UK; 6 pm CET) that explains what’s new in the MySQL Cluster Development Milestone Release – register here for free access (http://www.mysql.com/news-and-events/web-seminars/display-665.html?p=EnNL" target="_blank).

Join this session to learn about the latest enhancements to the MySQL Cluster database, enabling even more of the latest generation of web, telecoms and embedded applications to take advantage of high write scalability,

For those people that weren’t able to attend the MySQL Cluster demo or sessions at this year’s Oracle Open World (or even for those that did) and would like copies of the material, links are provided here.

• Building Scalable & Highly Available Database Services with MySQL Cluster – includes a description of the features in the new MySQL Cluster7.2  Development Milestone Release 2

Be sure to drop by the MySQL Demo Pod while you are attending Oracle Open World. There you will see a demo of the changes in MySQL Cluster 7.2. My favorite part of this release is that you can access the same data via SQL, LDAP, REST, memcached or via APIs. You get the best of both SQLand NoSQL worlds in one. At the Demo Pod, you can see how to see how Adaptive Query Localization speed up joins. Plus the demo will preview the latest and
greatest 7.2 DMR capabilities, and also demonstrate how MySQL Cluster
remains operational during node failures, upgrades and re-configuration
and how simple it is to create a live cluster using MySQL Cluster Manager. In the past, many cluster users avoid joins and simply used primary key or key/value pairs. But Adaptive Query

The binary version for MySQL Cluster 7.1.15a has now been made available at http://www.mysql.com/downloads/cluster/ (http://www.mysql.com/downloads/cluster/" target="_blank) (GPL version) or https://edelivery.oracle.com/ (commercial version)

A description of all of the changes (fixes) that have gone into MySQL Cluster 7.1.15a (compared to 7.1.15) can be found in the official MySQL Cluster documentation for Cluster 7.1.15a Change log.

MySQL Cluster Manager 1.1.2 is now available to download and try from Oracle E-Delivery (select “MySQL Database” as the product pack). Something that’s new and really cool in the new version is that you can download a version of MCM that actually includes the MySQL Cluster software itself and then you can have MCM automatically define, create and start a single-host cluster deployment for you with just the command “mcmd –bootstrap”. This post aims to show that

I will be presenting on MySQL Cluster and MySQL Replication at the Oracle Technical Network MySQL Developer day in London on Tuesday, 18 October 2011 (8:30 AM – 4:00 PM). It’s free but you need to register here while there are still places (attendance has been extremely high at other locations).

The MySQL Developer Day is a one-stop shop for you to

Slight adjustment to some of the times + added the MySQL community reception (read  vodka!). Oracle OpenWorld (San Francisco) starts on Sunday 2nd October (including some MySQL community sessions) through Thursday 6th October. MySQL has a lot of sessions this year as well as 3 demo booths.

This year I’m going to be involved in 3 public sessions – if you’re attending, please come along and say hello!

• Getting the Most Out of MySQL on Windows – 13:15 on Tuesday (Marriott Marquis – Golden Gate C2)
• Building Highly Available and Scalable Real-Time