UIM crashing every few minutes after upgrade to 20.1

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Article ID: 192956

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Updated On:

Products

NIMSOFT PROBES DX Infrastructure Management

Issue/Introduction

ISSUE:
•  IM and AC, intermittently, seem to lose the ability to manage configuration as IM becomes unavailable (ie. robots and hubs disappear) and in AC browser session hangs. 
•  We have seen that after a minute the situation goes back to normal without any intervention:
•  hub or any other probe does NOT restart
•  UMP is reachable during the failure

OBSERVATIONS:
•  We have seen 2 windows reoccurring errors that are worth investigating to exclude relation with the issue.
•  We have an Active Antivirus on the primary hub. 

Cause

AntiVirus running and scanning the UIM folder generate intermittent issues

Environment

Release : 20.1

UIM 9.2 > 20.1
WIN2016
mssqldb 2016
Tunneled hub, non secure, not TLS
hub 9.30

Resolution

We suggest to verify that Antivirus scanning of UIM components meets recommendations and requirements as per th KB: Antivirus scanning of UIM components 
If possible, also get permission Pause the Antivirus completely during some time and see if you get reoccurrence during that time.