Aria Automation 8.18 - Error "String length ... exceeds the maximum length (20000000)" while running the Migration Assessment for vRO

Products

• VCF Operations/Automation (formerly VMware Aria Suite)
• VMware vRealize Automation 7.x

Issue/Introduction

Running the Migration Assessment for vRealize Orchestrator (vRO) failed. Opening the details does show the error:

An error occurred while running the assessment for VMware Aria Automation Orchestrator.
com.fasterxml.jackson.core.exc.StreamConstraintsException: String length (20######) exceeds the maximum length (20000000)

Environment

Aria Automation 8.18.0

vRealize Orchestrator 7.6

Cause

A workflow contains a script with more then 20 million characters.

Resolution

Either remove the script or split the script into smaller scriptable tasks.

To identify the problematic workflow:

1. Connect to one of the Aria Automation 8.18 appliances via SSH
2. Tail the logs of the assessment-service, command: 

   vracli logs --service assessment-service-app -f

3. Reproduce the issue by re-adding the vRO 7.x endpoint and start the Assessment
4. Once the error appears, hit CTRL+C to interrupt the log stream.
5. Just before the error stack trace the log will show:
   

   c.v.assessment.common.CommonUtils - Scanning vRO workflow: /tmp/capture/###/192.168.#.#-###

   Where the last id at the end of this log refers to the workflow id on vRO 7.x