NDB Cluster Configuration Files Default Value ON Valid Values ON OFF FORCE Command-Line Format --ndb-optimization-delay=# System Variable ndb_optimization_delay Scope Global Dynamic Yes SET_VAR  Hint Applies No Type Integer Default Value 10 Minimum Value 0 Maximum Value 100000 Command-Line Format --ndb-optimized-node-selection Command-Line Format --ndb-transid-mysql-connection- map[=state] Type Enumeration Default Value ON Valid Values ON OFF FORCE Enables the plugin for the  ndbinfo  information database. By default this is ON whenever  NDBCLUSTER is enabled. Set the number of milliseconds to wait between sets of rows by  OPTIMIZE TABLE  statements on  NDB tables. The default is 10. Enable optimizations for selection of nodes for transactions. Enabled by default; use  --skip-ndb- optimized-node-selection  to disable. Enables or disables the plugin that handles the  ndb_transid_mysql_connection_map  table in the  INFORMATION_SCHEMA  database. Takes one of the values  ON ,  OFF , or  FORCE .  ON  (the default) enables the plugin.  OFF  disables the plugin, which makes  ndb_transid_mysql_connection_map inaccessible.  FORCE  keeps the MySQL Server from starting if the plugin fails to load and start. You can see whether the  ndb_transid_mysql_connection_map  table plugin is running by checking the output of  SHOW PLUGINS . • --ndb-optimization-delay= milliseconds • --ndb-optimized-node-selection • --ndb-transid-mysql-connection-map= state 4171