Overview of NDB Cluster Configuration Parameters, Options, and Variables • Ndb_api_event_data_count_injector : Number of row change events received by NDB binary log injector thread. • Ndb_api_event_nondata_count : Number of events received, other than row change events, by this MySQL Server (SQL node). • Ndb_api_event_nondata_count_injector : Number of events received, other than row change events, by NDB binary log injector thread. • Ndb_api_pk_op_count : Number of operations based on or using primary keys by this MySQL Server (SQL node). • Ndb_api_pk_op_count_session : Number of operations based on or using primary keys in this client session. • Ndb_api_pk_op_count_replica : Number of operations based on or using primary keys by this replica. • Ndb_api_pk_op_count_slave : Number of operations based on or using primary keys by this replica. • Ndb_api_pruned_scan_count : Number of scans that have been pruned to one partition by this MySQL Server (SQL node). • Ndb_api_pruned_scan_count_session : Number of scans that have been pruned to one partition in this client session. • Ndb_api_pruned_scan_count_replica : Number of scans that have been pruned to one partition by this replica. • Ndb_api_pruned_scan_count_slave : Number of scans that have been pruned to one partition by this replica. • Ndb_api_range_scan_count : Number of range scans that have been started by this MySQL Server (SQL node). • Ndb_api_range_scan_count_session : Number of range scans that have been started in this client session. • Ndb_api_range_scan_count_replica : Number of range scans that have been started by this replica. • Ndb_api_range_scan_count_slave : Number of range scans that have been started by this replica. • Ndb_api_read_row_count : Total number of rows that have been read by this MySQL Server (SQL node). • Ndb_api_read_row_count_session : Total number of rows that have been read in this client session. • Ndb_api_read_row_count_replica : Total number of rows that have been read by this replica. • Ndb_api_read_row_count_slave : Total number of rows that have been read by this replica. • Ndb_api_scan_batch_count : Number of batches of rows received by this MySQL Server (SQL node). • Ndb_api_scan_batch_count_session : Number of batches of rows received in this client session. • Ndb_api_scan_batch_count_replica : Number of batches of rows received by this replica. 4045