25.6.16.64 The ndbinfo transporter_details Table

This table contains information about individual NDB transporters, rather than aggregate information as shown by the transporters table. The transporter_details table was added in NDB 8.0.37.

The transporter_details table contains the following columns:

• node_id

  This data node's unique node ID in the cluster

• block_instance

• trp_id

  The transporter ID

• remote_node_id

  The remote data node's node ID

• status

  Status of the connection

• remote_address

  Name or IP address of the remote host

• bytes_sent

  Number of bytes sent using this connection

• bytes_received

  Number of bytes received using this connection

• connect_count

  Number of times connection established on this transporter

• overloaded

  1 if this transporter is currently overloaded, otherwise 0

• overload_count

  Number of times this transporter has entered overload state since connecting

• slowdown

  1 if this transporter is in slowdown state, otherwise 0

• slowdown_count

  Number of times this transporter has entered slowdown state since connecting

• encrypted

  If this transporter is connected using TLS, this column is 1, otherwise it is 0.

• sendbuffer_used_bytes

  The amount, in bytes, of signal data currently awaiting send by this transporter.

• sendbuffer_max_used_bytes

  The maximum amount, in bytes, of signal data awaiting send at any one time by this transporter.

• sendbuffer_alloc_bytes

  Amount of send buffer, in bytes, currently allocated for signal data storage for this transporter.

• sendbuffer_max_alloc_bytes

  Maxmimum amount of send buffer, in bytes, allocated for signal data storage at any one time for this transporter.

• type

  The connection type used by this transporter (TCP or SHM).

The transporter_details table displays a row showing the status of each transporter in the cluster. See the Notes for the transporters table for more information about each of the columns in this table.

The sendbuffer_used_bytes, sendbuffer_max_used_bytes, sendbuffer_alloc_bytes, sendbuffer_max_alloc_bytes, and type columns were added in NDB 8.0.38.