"Failed to register VMware HTTP Reverse Proxy service with SCA" error while upgrading vCenter Server 6.7
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"Failed to register VMware HTTP Reverse Proxy service with SCA" error while upgrading vCenter Server 6.7

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Article ID: 321043

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Updated On:

Products

VMware vCenter Server

Issue/Introduction

Symptoms:
To learn more about firstboot issues see, Understanding and Troubleshooting vCenter Server and vCenter Server Appliance 6.7 Firstboot Install/Deployment, Upgrade, or Migration Failures​.

To collect a log bundle or review log files for a vCenter Server on Windows install or upgrade issues, see Triaging a vCenter Server 6.0 installation or upgrade failure
  • vCenter Server 6.7 on Windows Upgrade Fails During Firstboot.
  • You see the error:

    VMware HTTP Reverse Proxy Firstboot Failed - "Failed to register VMware HTTP Reverse Proxy service with SCA"
     
  • firstbootStatus.json contains entries similar to:

    "failedSteps": "rhttpproxy_firstboot"
     
  • rhttpproxy_firstboot.py_####_stdout.log file contains entries similar to:

    Service: vswaLandingPage does not exist.
    Registering rhttpproxy with SCA
    rhttpproxy firstboot failed​

    Note: 
vCenter Server on Windows - Firstboot logs are located in the VMware-VCS-logs-<year><month><day><hour><minute><second>.zip/vcs_logs/uninstall directory or the VMware-VCS-logs-<year><month><day><hour><minute><second>/vcs_logs/uninstall/<vCenter Hostname><year><month><day><hour><minute><second>.zip/ProgramData/VMware/vCenterServer/logs/firstboot directory.


Environment

VMware vCenter Server 6.7.x

Cause

This issue occurs when the vmware-sca component is not properly uninstalled during a rollback.

Resolution

To resolve the issue, identify the uninstall ID and then remove the vmware-sca.msi.

To Identify the uninstall ID:
  1. Click Start > Run or press Windows + R key.
  2. Type regedit and click OK.
  3. Navigate to:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall.
  1. Search for VMware Service Control Agent.
  2. Identify the UninstallString value.
To uninstall:
  1. Open an Administrative command prompt.
  2. Run the following command:
MsiExec.exe /X {UninstallString from step 5 above}
For example: MsiExec.exe /X {5266FAC2-14EC-4BE4-AC61-BB072C11A0E3}
  1. Perform the upgrade to vCenter Sever 6.7.


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