NDB Cluster Configuration Files The size specified by  IndexStatSaveSize  is scaled by the value of  IndexStatTriggerPct  for a large index, times 0.01. This is further multiplied by the logarithm to the base 2 of the index size. Setting IndexStatTriggerPct  equal to 0 disables the scaling effect. Scale  IndexStatTriggerPct  by this amount times 0.01 for a large index. A value of 0 disables scaling. Minimum delay in seconds between automatic index statistics updates for a given index. Setting this variable to 0 disables any delay. The default is 60 seconds. Restart types.   Information about the restart types used by the parameter descriptions in this section is shown in the following table: 4150 • IndexStatUpdateDelay • IndexStatTriggerScale • IndexStatTriggerPct Percentage change in updates that triggers an index statistics update. The value is scaled by IndexStatTriggerScale . You can disable this trigger altogether by setting  IndexStatTriggerPct to 0. Type or units percentage Default 100 Range 0 - 4294967039 (0xFFFFFEFF) Restart Type IN (NDB 8.0.13) Version (or later) NDB 8.0.13 Type or units percentage Default 100 Range 0 - 4294967039 (0xFFFFFEFF) Restart Type IN (NDB 8.0.13) Version (or later) NDB 8.0.13 Type or units percentage Default 100 Range 0 - 4294967039 (0xFFFFFEFF) Restart Type IN (NDB 8.0.13) Version (or later) NDB 8.0.13 Type or units seconds Default 60 Range 0 - 4294967039 (0xFFFFFEFF) Restart Type IN (NDB 8.0.13)