Someone asked me what applications were good/bad for MySQL Cluster. As I've now actually had experience with a Cluster setup and a real-life application of it, and dug through the manual, I present a few characteristics of applications that will work with Cluster, and why they are so (so that if you have an application that meets some of the characteristics but not all of them, you can decide whether it's worth it to use Cluster or not).Firstly, I'll state this -- there's actually a very limited application to MySQL cluster. I haven't assessed the disk-based cluster, only the memory-based one, so I don't know what really changes with disk-based. But after you see this list, you certainly will want to re-think your use of disk-based cluster if a lot of the inner workings don't change.The factors are listed below, but the "ruler" I keep in my mind is the fact that MySQL Cluster was developed for telecom applications.  []

Mikael Ronstrom, father of MySQL Cluster, explains the architecture of NDB (MySQL Cluster).

Stewart Smith, MySQL Cluster support at that time, introduces NDB (MySQL Cluster).