4 thoughts on “MySQL Cluster 7.2.8 Released

  1. Do you know of a MySQL Cluster upgrade guide? Specifically, a guide to upgrading to a new minor release (7.2.6 to 7.2.8)? I think we may be affected by a bug fixed in 7.2.8.

    1. Upgrades isn’t the most documented process for MySQL Cluster but it’s fairly straight-forward. Simply stop each process and then restart it using the new binary. By restarting one process at a time, the database stays up through the whole process. You should upgrade the management nodes first, data nodes second and then finally the MySQL Servers.


  2. Hi! I’m doing a school project on fault tolerance and have setup a small database cluster using MySQL Cluster 7.2.8, by following the guide provided on the mysql website: http://downloads.mysql.com/tutorials/cluster/GetMySQLClusterRunning-Windows.pdf

    While I can create and update tables using the mysql command line client provided, I’ve been trying to perform these operations from a Java application and came across your tutorials on using ClusterJ and ClusterJPA.

    I tried to follow the instructions from http://dev.mysql.com/doc/ndbapi/en/mccj-getting.html#mccj-getting-build-install to get the .jar files so that I could follow your tutorial, but I’m afraid I’m a complete novice at this and am unable to see how to ‘configure the build to include ClusterJPA and ClusterJ support’ when the current cluster I have didn’t seem to have been set up with this build step. It didn’t require any installation or command-line configuration, I just unzipped the download directly to my C:/ drive and created the appropriate my.cnf and config.ini files. I tried checking the /share folder after my cluster was running (hoping that meant it had been installed properly) but it did not contain a mysql/java folder, only multiple folders titled with the names of languages.

    Do you know how I can get the appropriate .jar files from MySQL Cluster 7.2.8? Or any other places where I could download them directly? I’m really sorry for bothering you with this question but I haven’t been able to find any solutions elsewhere and you seem very knowledgeable about the MySQL Cluster.

    Thank you very much. Apologies for all the inconvenience caused.

    1. Hi Al,

      there is an issue with the 7.2.8 Windows package in that it doesn’t contain the ClusterJ jars! You’ve a couple of options:

      1) Wait for 7.2.9
      2) Extract the jars from the 7.2.8 Linux package (they should work just as well on Windows).


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