SDDC Manager workload domain update tab gives following warning "Unable to compute applicability for drift Creates a Distributed Virtual Port Group to enable traffic isolation between management VMs and ESXi hosts."

Products

• VMware SDDC Manager
• VMware Cloud Foundation

Issue/Introduction

• SDDC Manager workload domain update tab gives following warning

  Unable to compute applicability for drift Creates a Distributed Virtual Port Group to enable traffic isolation between management VMs and ESXi hosts

   

• Error in /var/log/vmware/vcf/domainmanager/domainmanager.log

  DEBUG [vcf_dm,68c##############4b,be45] [c.v.e.s.e.h.LocalizableRuntimeExceptionHandler,http-nio-127.0.0.1-7200-exec-7]  Handler Error Response: {"errorCode":"FAILED_TO_FETCH_APPLICABLE_DRIFTS_CONFIGURATION_REALIZED_CHECK_FAILED","arguments":["Creates a Distributed Virtual Port Group to enable traffic isolation between management VMs and ESXi hosts","[bf00####-####-####-####-########dee4]"],"message":"Unable to compute applicability for drift Creates a Distributed Virtual Port Group to enable traffic isolation between management VMs and ESXi hosts. Because configuration realized check failed on resources [bf00####-####-####-####-########dee4].","remediationMessage":"Please check logs and fix the failures of drift configuration realized checks. Then restart the service to trigger the configuration realized checks again and re-try the API. If this does not resolve the issue, please contact GSS.","referenceToken":"V####Q"}

   

  ERROR [vcf_dm,0000000000000000,0000] [c.v.v.c.c.c.DvpgConfigurationDriftCheck,ForkJoinPool.commonPool-worker-751]  Unhandled exception in DVPGConfigurationDriftCheck isConfigurationRealized for resource bf00####-####-####-####-########dee4.
  com.vmware.vim.vmomi.client.exception.VmomiProtocolException: https://vcenter.example.com:443/sdk invocation failed with "com.vmware.vim.vmomi.core.exception.MarshallException: Missing value for managed object reference"
          at com.vmware.vim.vmomi.client.common.impl.ResponseImpl.setError(ResponseImpl.java:265)
  
  Caused by: com.vmware.vim.vmomi.core.exception.MarshallException: Missing value for managed object reference

Environment

VMware Cloud Foundation

Cause

This issue is caused when MOB_ID of vDS (virtual Distributed Switch)  is not present or incorrect in the sddc manager database.

Resolution

1. Take snapshot of SDDC Manager VM
2. SSH to SDDC Manager VM with vcf user and su to root
3. Find the VDS id mapped to the cluster id (bf00####-####-####-####-########dee4) as reported in the log

   psql -h localhost -U postgres -d platform -c "\x" -c "select cluster_id,vds_id from cluster_and_vds where cluster_id='bf00####-####-####-####-########dee4'"

   Sample output

   -[ RECORD 1 ]------------------------------------
   cluster_id | bf00####-####-####-####-########dee4
   vds_id     | 1484####-####-####-####-########4ceb

    

4. Check the VDS details in SDDC manager database

   psql -h localhost -U postgres -d platform -c "\x" -c "select id,name,source_id from vds where id='<vds_id from step#3>'

   Sample

   psql -h localhost -U postgres -d platform -c "\x" -c "select id,name,source_id from vds where id='1484####-####-####-####-########4ceb'"

   Sample output

   id                 | 1484####-####-####-####-########4ceb
   name               | sample-vds01
   source_id          | 

   Note: source_id is missing here

5. Update the source id
   1. Find the mob id for the vds
      1. Open vCenter in vSphere client
      2. Click on Network icon
      3. Select the VDS sample-vds01
      4. Check the URL in browser address bar to locate the dvs id
         
         Sample

         https://vcenter.example.com/ui/app/dvs;nav=n/urn:vmomi:VmwareDistributedVirtualSwitch:dvs-21:5288####-####-####-####-########546f/summary

         Note: here dvs id is dvs-21

   2. Update the dvs id in vds table in sddc manager database

      psql -h localhost -U postgres -d platform -c "update vds set source_id='<dvs id from step#5(a)(iv)> where id='<vds_id from step#3>'"

      Sample

      psql -h localhost -U postgres -d platform -c "update vds set source_id='dvs-21' where id='1484####-####-####-####-########4ceb'"

6. Restart all the services on the SDDC manager

   /opt/vmware/vcf/operationsmanager/scripts/cli/sddcmanager_restart_services.sh