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progress of data distribution among cluster nodes, is also written to the MySQL error log. The default is 1. 

• ndb_force_send 

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Forces sending of buffers to NDB  immediately, without waiting for other threads. Defaults to ON . 

• ndb_fully_replicated 

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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. 

• ndb_index_stat_enable 

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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. 

