Version

Argent Advanced Technology 3.1A-1407-A and later

Date

Friday, 5 Sep 2014

Updated: Friday, 26 Sep 2014

Summary

Customer has found CMDB-X or Licensed Nodes lost on Main Engine, partially or completely lost at random occasions, and also lost Monitoring Groups and Alerts on Daughter Engine resulting in Daughter Engine Relators missing Monitoring Groups from Monitoring Group List along with Alerts on the “What To Do (Alerts)” tab

Daughter Engines are installed but wrongly use Argent Atlas and Argent Console database that used Mother Engine

This erroneous configuration can be confirmed by checking registry

HKLM\Software\Argent\ARGENT_CONSOLE\SERVER_IS_REMOTE on Daughter Engine

If the value is 0 (false), then Daughter Engine is wrongly installed with Argent Atlas and Argent Console components

The issue has been addressed in Argent AT 3.1A-1407-T3 by bulletproofing the setup process as shown in following screen shot:

Click For Full Size

For customer has such bad Daughter Engines, Argent AT 3.1A-1407-T3 is enhanced to prevent this destructive behavior by shutting down the service

Technical Background

If Daughter Engine was installed using Argent Atlas and Argent Console database used by Mother Engine, when Daughter Engine starts, it will wipe out the database and restore with downloaded control information

It might go unnoticed if downloaded control information is up-to-date

When there are multiple Daughter Engines, they can get into competition, and database restoration can fail due to database constraints

As a result, CMDB-X or licensed nodes on Main Engine may be completely wiped out or partially lost

Resolution

Customer needs to re-install Daughter Engine with correct components

Also upgrade to Argent Advanced Technology 3.1A-1407-T3 or later to prevent such bad Daughter Engine installations in the future