What is New in NDB Cluster the system does not limit the number of processors, you can do so if desired by setting  NumCPUs  (also added in NDB 8.0.23). Otherwise, automatic thread configuration accommodates up to 1024 CPUs. Automatic thread configuration occurs regardless of any values set for  ThreadConfig  or MaxNoOfExecutionThreads  in  config.ini ; this means that it is not necessary to set either of these parameters. In addition, NDB 8.0.23 implements a number of new  ndbinfo  information database tables providing information about hardware and CPU availability, as well as CPU usage by  NDB  data nodes. These tables are listed here: Some of these tables are not available on every platform supported by NDB Cluster; see the individual descriptions of them for more information. The column originally declared as  NULL  must not contain any  NULL  rows; if it does,  ndb_restore exits with an error. For additional information, see Section 23.5.13, “NDB API Statistics Counters and Variables” . • cpudata • cpudata_1sec • cpudata_20sec • cpudata_50ms • hwinfo • cpuinfo • Hierachical views of NDB database objects.   The  dict_obj_tree  table, added to the  ndbinfo information database in NDB 8.0.24, can provide hierarchical and tree-like views of many  NDB  database objects, including the following: •Tables and associated indexes •Tablespaces and associated data files •Logfile groups and associated undo log files • Index statistics enhancements.   NDB 8.0.24 implements the following improvements in calculation of index statistics: •Index statistics were previously collected from one fragment only; this is changed such that this extrapolation is extended to additional fragments. •The algorithm used for very small tables, such as those having very few rows where results are discarded, has been improved, so that estimates for such tables should be more accurate than previously. For more information and examples, see Section 23.5.14.22, “The ndbinfo dict_obj_tree Table” . • Conversion between NULL and NOT NULL during restore operations.   Beginning with NDB 8.0.26,  ndb_restore  can support restoring of  NULL  columns as  NOT NULL  and the reverse, using the options listed here: •To restore a  NULL  column as  NOT NULL , use the  --lossy-conversions  option. 3955