APM Webstart Workstation won't launch after MOM HA

Products

• CA Application Performance Management Agent (APM / Wily / Introscope)
• CA Application Performance Management (APM / Wily / Introscope)
• INTROSCOPE
• DX Application Performance Management

Issue/Introduction

Successfully configured MOM Failover by following the below article: 

What are the steps to implement failover and High Availability (HA) MOMs?

After that, Connecting to HA MOM, the Webstart Workstation will not launch  -  not able to connect to theHA MOM EM and download the jnlp file. 


#### Java Web Start Error:
#### Could not load file/URL specified: http://HA_MOM-FQDN:port#/workstation

Caused by:
java.io.FileNotFoundException: http://HA_MOM-FQDN:port#/workstation

 

 

Cause

Insufficient rights on the EM Service Account. 

Environment

Release : 10.7.0

Component : Webstart Workstation 

Resolution

• Create a service account with (Login as service capabilities)
• Service accounts needs to have read and write access to Shared drive (between the HA MoM).
• Service accounts needs to have read /write access to log folder and CA APM folder and PGSQL, Workstation and all APM related folders.
• Introscope Service needs to register as Windows server. And it needs to be start with service account using service -> properties -> log

This helped to resolve launching Webstart Workstation.