Connecting vRealize Orchestrator Plugin for Horizon to Horizon Cluster behind Load balancer fails

Products

• VCF Operations/Automation (formerly VMware Aria Suite)

Issue/Introduction

Symptoms:

• Connecting vRealize Orchestrator Plugin for Horizon to Horizon Cluster behind Load balancer fails.
• If Horizon cluster is behind a Load balance and IT admin executes "Add View Pod In Configuration" workflow in vRealize Orchestrator Plugin for Horizon, the workflow fails with the error similar to:
  
  ERROR {:8a1cxxxxxxxxxxxxxxxxxxxxxxxx040f} [SCRIPTING_LOG] [Add View Pod In Configuration (10/30/18 07:05:49)] Error in (Workflow:Add View Pod In Configuration / Ping connection servers (item7)#6) java.net.ConnectException: Connection timed out (Connection timed out)
  2018-10-30 07:09:07.775-0400 ERROR {:8a1cxxxxxxxxxxxxxxxxxxxxxxxx040f} [SCRIPTING_LOG] Workflow execution stack:
  ***
  item: 'Add View Pod In Configuration/item7', state: 'failed', business state: 'null', exception: 'java.net.ConnectException: Connection timed out (Connection timed out) (Workflow:Add View Pod In Configuration / Ping connection servers (item7)#6)'
  workflow: 'Add View Pod In Configuration' (5a22xxxx-xxxx-xxxx-xxxx-xxxxxxxx4195) 
  |  'attribute': name=viewPodConfiguration type=ConfigurationElement value=dunes://service.dunes.ch/ConfigurationElement?id='779dxxxx-xxxx-xxxx-xxxx-xxxxxxxx5128'&dunesName='ConfigurationElement'
  |  'attribute': name=continueUpdate type=boolean value=true
  |  'attribute': name=isTrustedSSLCertificate type=boolean value=true
  |  'attribute': name=connectionServers type=Array/string value=#{#string#https://FullQualifiedDomainName:443#;#string#https://FullQualifiedDomainName:443#;#string#https://FullQualifiedDomainName:443#;#string#https://FullQualifiedDomainName:443#}#
  |  'attribute': name=csIndex type=number value=4.0
  |  'attribute': name=ignoreWarnings type=boolean value=false
  |  'attribute': name=importCertificateErrorCode type=string value=
  |  'attribute': name=untrustedServers type=Array/string value=__NULL__
  |  'input': name=oneCSHost type=string value=HostName
  |  'input': name=oneCSDomain type=string value=DomainName
  |  'input': name=username type=string value=UserName
  |  'input': name=password type=SecureString value=__NULL__
  |  'input': name=podAlias type=string value=Enterprise
  |  'no outputs'

Resolution

This is a known issue affecting VMware vRealize Orchestrator Plugin for Horizon 1.x.

Currently, there is no resolution.

Workaround:
To work around this issue, move the vRealize Orchestrator which installs the vRealize Orchestrator Plugin for Horizon behind the same Load Balancer as Horizon Cluster.