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• ndbinfo_version 

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## NDB Cluster Status Variables 

Shows the version of the ndbinfo  engine in use; read-only. 

This section provides detailed information about MySQL server status variables that relate to NDB Cluster and the NDB  storage engine. For status variables not specific to NDB Cluster, and for general information on using status variables, see Section 5.1.10, “Server Status Variables” . 

• Handler_discover 

The MySQL server can ask the NDBCLUSTER  storage engine if it knows about a table with a given name. This is called discovery. Handler_discover  indicates the number of times that tables have been discovered using this mechanism. 

• Ndb_api_adaptive_send_deferred_count 

Number of adaptive send calls that were not actually sent. 

For more information, see Section 23.5.13, “NDB API Statistics Counters and Variables” . 

• Ndb_api_adaptive_send_deferred_count_session 

Number of adaptive send calls that were not actually sent. 

For more information, see Section 23.5.13, “NDB API Statistics Counters and Variables” . 

• Ndb_api_adaptive_send_deferred_count_replica 

Number of adaptive send calls that were not actually sent by this replica. 

For more information, see Section 23.5.13, “NDB API Statistics Counters and Variables” . 

• Ndb_api_adaptive_send_deferred_count_slave 

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Number of adaptive send calls that were not actually sent by this replica. 

## Note 

Deprecated in NDB 8.0.23; use Ndb_api_adaptive_send_deferred_count_replica  instead. 

For more information, see Section 23.5.13, “NDB API Statistics Counters and Variables” . 

• Ndb_api_adaptive_send_forced_count 

