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Displaying posts with tag: MySQL Cluster (reset)
What is MySQL NDB Cluster?


I have had the opportunity to write a blog for Apress with a brief introduction to MySQL NDB Cluster. The blog gives a brief overview of the history and why you should consider it. The architecture is described before some key characteristics are discussed.

If you are interested, the blog can be found at

Happy reading.

Over view of the MySQL NDB Cluster architecture.

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MySQL Cluster 7.6 includes new Cluster Configurator

After dealing with Windows performance, I switched to MySQL Cluster Configurator (MCC for short) project. This was quite a change for me having to deal with Python back-end and JavaScript front-end, languages I was not so familiar with.

For the history of the project, please refer to Andrew's blog post for I will concentrate on changes made in new version.

There are many exciting new features in MySQL Cluster 7.6.4DMR including new MCC. To download MySQL Cluster 7.6.4DMR, please go to Development Releases tab. To see what's new in 7.6.4DMR, please follow this link.

MySQL Cluster Configurator in shortWith a single …

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MySQL Cluster Manager 1.4.5 released!

MySQL Cluster Manager 1.4.5 is now available for download from My Oracle Support.

MCM 1.4.5 contains further stability and usability improvements of MySQL Cluster Manager.

The 1.4.5 release bundles MySQL Cluster 7.5.9. However, since MySQL Cluster 7.5.7, system tables contain sufficient information for MCM to properly support rolling reconfigurations when ndb_cluster_connection_pool is enabled for mysqlds.…

Two New MySQL Books!

There are two new MySQL books both from Apress Press. One is an in depth master course on the subject and the other is a quick introduction.

ProMySQL NDB Cluster is subtitled Master the MySQL Cluster Lifecycle and at nearly 700 pages it is vital resource to anyone that runs or is thinking about running NDB Cluster. The authors, Jesper Wisborg Krogh and Mikiya Okuno, have distilled their vast knowledge of this difficult subject in a detail packed but easily readable book.  MySQL Cluster is much more complex in many areas than a regular MySQL server and here you will find all those details. If you run MySQL NDB Cluster then you need this book. The partitioning information in chapter 2 is worth the price of the book alone.  I am only a third of the way …

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New Book: Pro MySQL NDB Cluster


It is with great pleasure, I can announce that a new book dedicated to MySQL NDB Cluster has just been released. The book Pro MySQL NDB Cluster is written by my colleague Mikiya Okuno and myself and is a nearly 700 pages deep dive into the world of MySQL NDB Cluster. The book is published by Apress.

Tip: There are several ways to cluster MySQL. This book is about the product MySQL Cluster (often called MySQL NDB Cluster to clarify which cluster it is). There is also MySQL InnoDB Cluster, …

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MySQL Cluster Manager 1.4.4 released!

MySQL Cluster Manager 1.4.4 is now available for download from My Oracle Support.

What’s new?
With MCM 1.4.4 we continue to improve on MySQL Cluster Manager, specifically around:

  • the collect logs command
  • process status reporting
  • process command execution in specific scenarios

More details
More details are available in the MCM 1.4.4 Release Notes.…

MySQL Cluster Manager 1.4.3 released!

You might already have seen the announcement earlier this summer – we made MCM 1.4.3 available for download from My Oracle Support.

What’s new?
The most notable changes to MCM 1.4.3 include

  • Significant reduction in cpu consumption when idle.
  • Added support for running your mysqlds with skip-networking enabled.

Taming a ‘wild’ NDB 7.3 with Cluster Manager 1.4.3 & direct upgrade to 7.5.

Well, since working with outdated clusters and upgrade paths that quickly become obsolete, as in my last post, Migrating/importing NDB to Cluster Manager w/ version upgrade. , I wanted to share that we can also use Cluster Manager, mcm, to upgrade NDB Cluster from 7.3 directly to 7.5. So we can start using the mcm new features like autotune that help guide us towards some Cluster tuning, or 7.5 new features like READ_BACKUP or FULLY_REPLICATED tables. …

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Migrating/importing NDB to Cluster Manager w/ version upgrade.

I’ve had some questions from people using MySQL Cluster GPL and wanting to move to using MySQL Cluster Carrier Grade Edition, i.e., they want to use MySQL Cluster Manager, MCM, to make their lives much easier, in particular, upgrading (as well as config change ease and backup history).

All I want to do here is to share with you my personal experience on migrating what’s considered a ‘wild’ NDB Cluster to a MCM managed cluster. It’s just as simple to follow the manual chapter Importing a Cluster into MySQL Cluster Manager so at least you can see how I did it, and it might help someone.

[ If you’re not migrating but just looking for further information on NDB Cluster, and came across this post, please please PLEASE look at the …

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MySQL Documentation: Indexes in Release Notes

We've recently made a change "in the background", adding an index to each of our release note documents. For an (ample) example, look at the MySQL 5.7 release notes' index page.

The index should make it a lot easier for users to spot (and track) changes of particular features throughout the versions of a MySQL release series (for example, MySQL 5.7 or 8.0).

Release note indexes are automatically updated as new changelogs are created; this is one of the advantages of our highly automated documentation infrastructure -- keeping indexes updated manually would simply not be possible.

Update (2017-07-03): New screenshot, reflecting more readable / less cluttered links to individual release notes.

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