ems and wasp probe do not start when UIM Server is restarted

Products

• NIMSOFT PROBES
• DX Infrastructure Management

Issue/Introduction

wasp and ems probe do not start anytime the UIM Server robot is restarted, including on server restarts.

Error in ems.log
Failed to instantiate [com.nimsoft.nimbus.lookup.model.DatabaseConnectionInfo]: Factory method 'databaseConnectionInfo' threw exception; nested exception is (4) not found, Received status (4) on response (for sendRcv) for cmd = 'nametoip' name = '/domainname/hubname/hubrobotname/data_engine'

Error in wasp.log

[main, com.nimsoft.nimbus.probe.service.wasp.Probe] (4) not found, Received status (4) on response (for sendRcv) for cmd = 'nametoip' name = '/domainname/hubname/hubrobotname/data_engine'

Cause

data_engine probe is not completely up when ems and wasp starts up

Environment

Release : 20.1

Component : UIM - EMS

Resolution

To resolve this issue, we need to configure both ems and wasp probes to start after the data_engine is up.

1. RDP to the UIM Server (Primary hub)
2. Edit the ..\Nimsoft\robot\controller.cfg and go to the  each section ( <ems> and <wasp>) 
3. Add start_after = data_engine
4. Restart the UIM Server robot from IM or Windows Services
5. Ensure that both probes start