NDB Cluster Configuration Files progress of data distribution among cluster nodes, is also written to the MySQL error log. The default is 1. Forces sending of buffers to  NDB  immediately, without waiting for other threads. Defaults to  ON . Determines whether new  NDB  tables are fully replicated. This setting can be overridden for an individual table using  COMMENT="NDB_TABLE=FULLY_REPLICATED=..."  in a  CREATE TABLE  or  ALTER TABLE  statement; see Section 13.1.20.11, “Setting NDB_TABLE Options” , for syntax and other information. Use  NDB  index statistics in query optimization. The default is  ON . Prior to NDB 8.0.27, starting the server with  --ndb-index-stat-enable  set to  OFF  prevented the creation of the index statistics tables. In NDB 8.0.27 and later, these tables are always created when the server starts, regardless of this option’s value. 4178 Command-Line Format --ndb-force-send[={OFF|ON}] System Variable ndb_force_send Scope Global, Session Dynamic Yes SET_VAR  Hint Applies No Type Boolean Default Value ON Command-Line Format --ndb-fully-replicated[={OFF|ON}] System Variable ndb_fully_replicated Scope Global, Session Dynamic Yes SET_VAR  Hint Applies No Type Boolean Default Value OFF Command-Line Format --ndb-index-stat-enable[={OFF|ON}] System Variable ndb_index_stat_enable Scope Global, Session Dynamic Yes SET_VAR  Hint Applies No Type Boolean Default Value ON • ndb_force_send • ndb_fully_replicated • ndb_index_stat_enable