Version

Argent Advanced Technology 3.1A-1504-A or earlier

Date

Tuesday, 2 June 2015

Summary

Argent AT Daughter Engine may recycle frequently when installed Argent AT product services share the same SQL Server database

If CMDB-X database has more than 3,000 Nodes, the recycling can take more than 5 minutes

As a result, Monitoring tasks can be skipped

For extreme cases, service may be caught in checkpoint error, recycle repeatedly and run no Monitoring Task at all

Service log shows following lines repeatedly:

The issue has been addressed in Argent AT 3.1A-1504-T1

Technical Background

The issue is caused by the inconsistence of CMDB-X in files of exported Master Control Information

Consider such a situation:

1. Daughter Engine uses shared SQL Server database, and has Argent Guardian Ultra and Argent Sentry Ultra services installed
2. There are 3,000 Windows/Unix/Linux servers and 300 URL objects in CMDB-X, monitored by Argent Guardian Ultra and Argent Sentry Ultra respectively

   Say URL object X is monitored by Daughter Engine

   Both Argent Guardian Ultra and Argent Sentry Ultra have exported Master Control Information, and exported files have been downed by Daughter Engine

3. Customer removes URL object X and some other Windows servers in CMDB-X and exports Argent Guardian Ultra Master Control Information, but does not export Argent Sentry Ultra for some reason
4. As a result, URL object X is removed at Daughter Engine

   However, Argent Sentry Ultra at Daughter Engine still runs on the old Master Control Information, and continue monitoring URL object X though it has been unlicensed and removed at Mother Engine

   Argent Sentry Ultra Daughter Engine adds URL object X back to CMDB-X

5. Now CMDB-X does not match up the Argent Guardian Ultra Master Control Information

   Argent Guardian Ultra at Daughter Engine recycles to import the CMDB-X database, and remove URL object X

6. Argent Sentry Ultra will repeat Step 5

   As a result, Step 5 and 6 are repeated constantly depending on how frequent the Monitoring Task of URL object X is executed

Resolution

Upgrade to Argent AT 3.1A-1504-T1 or later

For customer who cannot upgrade immediately, he should remember to export Master Control Information for all products when a CMDB-X Node is removed

As another resolution, he can turn ON Auto Export so that Argent AT Engine can do the export automatically

See KBI : https://help.argent.com/#KBI_310553.php