25.6.16.29 The ndbinfo disk_write_speed_aggregate_node Table (original) (raw)

25.6.16.29 The ndbinfo disk_write_speed_aggregate_node Table

The disk_write_speed_aggregate_node table provides aggregated information per node about the speed of disk writes during LCP, backup, and restore operations.

The disk_write_speed_aggregate_node table contains the following columns:

• node_id
  Node ID of this node
• backup_lcp_speed_last_sec
  Number of bytes written to disk by backup and LCP processes in the last second
• redo_speed_last_sec
  Number of bytes written to the redo log in the last second
• backup_lcp_speed_last_10sec
  Number of bytes written to disk by backup and LCP processes per second, averaged over the last 10 seconds
• redo_speed_last_10sec
  Number of bytes written to the redo log each second, averaged over the last 10 seconds
• backup_lcp_speed_last_60sec
  Number of bytes written to disk by backup and LCP processes per second, averaged over the last 60 seconds
• redo_speed_last_60sec
  Number of bytes written to the redo log each second, averaged over the last 60 seconds