Together with Geert and Andrew I’ll be teaching the MySQL Cluster tutrial at this year’s MySQL Cluster User Conference – Santa Clara, on April 12th. If you’re interested in using MySQL Cluster but aren’t sure how to get started (or you’ve used it but would like some tips) then this is a great opportunity. Check out the tutorial description.

If you register by 15 March then you get the early-bird price and if you use this ‘friend of a speaker’ code then you get an additional 25% off: …

The source version for MySQL Cluster 6.3.31b has now been made available at ftp://ftp.mysql.com/pub/mysql/download/cluster_telco/mysql-5.1.41-ndb-6.3.31b/

This replaces MySQL Cluster 6.3.30 and 6.3.31.

You can either wait for the binaries to be released or if you’re in a rush then you can find instructions on building the binaries for yourself in the earlier article: “MySQL Cluster 7.0.7 source released“.

A description of all of the changes (fixes) that have gone into MySQL Cluster 6.3.31b (compared to 6.3.30) can be found in the MySQL Cluster 6.3.31b Change Log

The source version for MySQL Cluster 7.0.11b has now been made available at ftp://ftp.mysql.com/pub/mysql/download/cluster_telco/mysql-5.1.41-ndb-7.0.11b/

This replaces MySQL Cluster 7.0.10 and 7.0.11.

You can either wait for the binaries to be released or if you’re in a rush then you can find instructions on building the binaries for yourself in the earlier article: “MySQL Cluster 7.0.7 source released“.

A description of all of the changes (fixes) that have gone into MySQL Cluster 7.0.11b (compared to 7.0.10) can be found in the MySQL Cluster 7.0.11b Change Log

For anyone that missed the recent webinar on getting the best performance out of MySQL Cluster then the replay is now available from mysql.com.

Benefits of connection pooling

Are you experiencing current performance bottlenecks in your high availability applications ? Are you designing a new mission-critical application and want to know how best to structure your schema and index strategy for optimal performance? Interested in how to transform your SQL into faster, more efficient queries?

Then this free web presentation is for you! You will get expert insight and learn best practices to help you identify those areas of database and application design that will give you the greatest benefits for …

You may have read Bernd’s recent post that explained how to try out some new beta functionality for MySQL Cluster and wondered what kind of use you could put the new ndb$info to. ndb$info uses tables/views to give real-time access to a whole host of information that helps you monitor and tune your MySQL Cluster deployment. This article gives one example, extending MySQL Enterprise Monitor to keep an eye on the amount of free memory on the data nodes and then raise an alarm when it starts to run low – even generating SNMP traps if that’s what you need.

One of the features of MySQL Enterprise Monitor is that you can define custom data collectors and that those data collectors can run SQL queries to get the data. The information …

The source version for MySQL Cluster 7.0.11 has now been made available at ftp://ftp.mysql.com/pub/mysql/download/cluster_telco/mysql-5.1.41-ndb-7.0.11/

This replaces MySQL Cluster 7.0.10.

You can either wait for the binaries to be released or if you’re in a rush then you can find instructions on building the binaries for yourself in the earlier article: “MySQL Cluster 7.0.7 source released“.

A description of all of the changes (fixes) that have gone into MySQL Cluster 7.0.11 (compared to 7.0.11) can be found in the MySQL_Cluster_7_0_11_ChangeLog.

ClusterJ Architecture

MySQL have been working on a new way of accessing MySQL Cluster using Java. Designed for Java developers, the MySQL Cluster Connector for Java implements an easy-to-use and high performance native Java interface and OpenJPA plug-in that maps Java classes to tables stored in the high availability, real-time MySQL Cluster database.

There is a series of 2 webinars coming up, as always these are free to attend – you just need to register in advance:

Part 1: Tuesday, February 16, 2010: 10:00 Pacific time

• an overview of the MySQL Cluster Connector for Java
• what these technologies bring to Java developers
• implementation details of the MySQL Cluster Java API and Plug-In for OpenJPA
• configuring the connection to …

The source version for MySQL Cluster 7.0.10 has now been made available at ftp://ftp://ftp.mysql.com/pub/mysql/download/cluster_telco/mysql-5.1.39-ndb-7.0.10//

This replaces MySQL Cluster 7.0.9.

You can either wait for the binaries to be released or if you’re in a rush then you can find instructions on building the binaries for yourself in the earlier article: “MySQL Cluster 7.0.7 source released“.

A description of all of the changes (fixes) that have gone into MySQL Cluster 7.0.10 (compared to 7.0.9) can be found in the MySQL_Cluster_7_0_10_ChangeLog.

MySQL Cluster Connection Pooling

This guide explores how to tune and optimize the MySQL Cluster database to handle diverse workload requirements. It discusses data access patterns and how to build distribution awareness into applications, before exploring schema and query optimization, tuning of parameters and how to get the best out of the latest innovations in hardware design.

The Guide concludes with recent performance benchmarks conducted with the MySQL Cluster database, an overview of how MySQL Cluster can be integrated with other MySQL storage engines, before summarizing additional resources that will enable you to optimize MySQL Cluster performance with your applications.

Download the white paper (as always, for free) from: …

Fig 1. Typical management configuration

MySQL Cluster is designed to be a High Availability, Fault Tolerant database where no single failure results in any loss of service.

This is however dependent on how the user chooses to architect the configuration – in terms of which nodes are placed on which physical hosts, and which physical resources each physical host is dependent on (for example if the two blades containing the data nodes making up a particular node group are cooled by the same fan then the failure of that fan could result in the loss of the whole database).

Of course, there’s always the possibility of an entire data center being lost due to earthquake, sabotage etc. and so for a fully available system, you should consider using asynchronous replication to a geographically remote Cluster.

Fig 1. …