What steps to take to resize an existing MYSQL NDB Cluster?

Question

I have an existing NDB Cluster. It's grown larger than I expected and I need to make it bigger. When I ask the management console for the ALL REPORT MEMORY, it looks like the datamemory is 65% full. However, I get page faults, swap, and memory related issues.

How do I find what my correct settings for data-memory, index-memory and any other related parameters should be?

Is ndb_size.pl the correct script to run?

Answer 1

Since your data nodes are up and running you can check the size of the virtual memory allocated to the data node. If this is bigger than 80-90% of your available memory you will experience issues like you describe.