A description of all of the changes (fixes) that have gone into MySQL Cluster 7.2.14 (compared to 7.2.13) is available from the 7.2.14 Change log.
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The binary version for MySQL Cluster 7.2.12 has now been made available at http://www.mysql.com/downloads/cluster/ (GPL version) and should soon be available at https://support.oracle.com/ (commercial version).
A description of all of the changes (fixes) that have gone into MySQL Cluster 7.2.12 (compared to 7.2.10) is available from the 7.2.12 Change log.
A description of all of the changes (fixes) that have gone into MySQL Cluster 7.2.10 (compared to 7.2.9) is available from the 7.2.10 Change log.
Deploying a well configured cluster has just got a lot easier! Oracle have released a new auto-installer/configurator for MySQL Cluster that makes the processes extremely simple while making sure that the cluster is well configured for your application. The installer is part of MySQL Cluster 7.3 and so is not yet GA but it can also be used on MySQL Cluster 7.2. A single command launches the web-based wizard which then steps you through configuring the cluster; to keep things even simpler, it will automatically detect the resources on your target machines and use these results together with the type of workload you specify in order to determine values for the key configuration parameters.
Before going through the detailed steps, here’s a demonstration of the auto-installer in action…
Downloading and running the wizard
The software can be downloaded from …[Read more]
A description of all of the changes (fixes) that have gone into MySQL Cluster 7.2.7 (compared to 7.2.6) are available from the 7.2.7 Change log.
Engineering threads within a Data Node
A new version of the white paper “Guide to Optimizing Performance of the MySQL Cluster Database” has been released; download it here.
This paper steps you through:
- Identifying if your application is a good fit for MySQL Cluster
- Measuring performance and identifying problem performance areas to address
- Optimizing performance:
- Access patterns
- Using Adaptive Query Localization for complex Joins
- Distribution aware applications
- Batching operations …
MySQL Cluster partitioning key
I’ll be presenting a webinar covering MySQL Cluster performance on Thursday, July 26. As always, the webinar will be free but you’ll need to register here – you’ll then also receive a link to the charts and a recording of the session after the event.
Here’s the agenda (hoping that I can squeeze it all in!):
- Introduction to MySQL Cluster
- Where does MySQL Cluster fit?
- ANALYZE TABLE …
MySQL Cluster running on Raspberry Pi
I start a long weekend tonight and it’s the kids’ last day of school before their school holidays and so last night felt like the right time to play a bit. This week I received my Raspberry Pi – if you haven’t heard of it then you should take a look at the Raspberry Pi FAQ - basically it’s a ridiculously cheap ($25 or $35 if you want the top of the range model) ARM based PC that’s the size of a credit card.
A knew I had to have one to play with but what to do with it? Why not start by porting MySQL Cluster onto it? We always claim that Cluster runs on commodity hardware – surely this would be the ultimate test of that claim.
I chose the customised version of Debian – you have to …[Read more]
A description of all of the changes (fixes) that have gone into MySQL Cluster 7.2.6 (compared to 7.2.5) are available from the 7.2.6 Change log.
I’ve previously provided an example of using MySQL Cluster Manager to add nodes to a running MySQL Cluster deployment but I’ve since received a number of questions around how to do this in more complex circumstances (for example when ending up with more than 1 MySQL Server on a single host where each mysqld process should use a different port). The purpose of this post is to work through one of these more complex scenarios.
The starting point is an existing cluster made up of 3 hosts with the nodes (processes) as described in this MCM report:
mcm> SHOW STATUS -r mycluster; +--------+----------+-------------------------------+---------+-----------+---------+ | NodeId | Process | Host | Status …[Read more]
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