data_engine raw configuration parameters explained

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)
• CA Unified Infrastructure Management SaaS (Nimsoft / UIM)

Issue/Introduction

What do the raw configuation data_engine value mean? 

I need information/descriptions of the data_engine raw config parameters.

What do the below key determine? 

daily_avg_age = 
raw_data_extra = 
daily_avg_age_extra = 
history_avg_age_extra =  
delete_history_samples = 
delete_raw_samples = 

Environment

• DX UIM 20.4.* / 23.4.*

Cause

Guidance / Data Maintenance

Resolution

Review the data_engine raw config parms   PDF file attached to this KB Article.

Additional Information

Notes:

 

• The DN* tables will not store any data if the daily_avg_age setting is not properly set. In order for daily_avg_age to store data, the setting value must be 'greater than' the delete_history_samples.
  
  
• Also note that in general, if you reduce the number of days too aggressively, ore than a few days at a time, it often causes the delete job to hang (which affects the DB), or take a very long time to finish.
  
  
• You can try deleting rows from daily_avg_age (the DN* tables) in increments of 20-25 (days). If you try to reduce it more aggressively, it may take a very long time or the delete job may hang.
  
  

Related KB: 

DX UIM QOS Data Retention explained