(this blog post applies to MySQL Cluster 6.3 and MySQL Cluster
A while ago I discussed Memory Allocation in MySQL Cluster. Here it comes again, but we also discuss fragmentation and a tool to help analyze if there is fragmentation.
The main problem I want to address here is that "I filled up 100% of my DataMemory, then deleted 40% and I cannot create a new table!!". Now this is not such a common problem, but …