ndb_mgm> all report MemoryUsage

Node 1: Data usage is 11%(632 32K pages of total 5440)
Node 1: Index usage is 22%(578 8K pages of total 2592)
Node 2: Data usage is 61%(3331 32K pages of total 5440)
Node 2: Index usage is 40%(1039 8K pages of total 2592)
ndb_mgm>

Oh, and that’s coming from saved command history.

(as seen when upgrading my cluster here to mysql-5.1.19 ndb-6.2.3 – i.e. MySQL Cluster Carrier Grade Edition – i.e. the -telco tree)