VMware NSX-T Manager data source in VCF Operations for Networks 9.x shows "data collection failed" after removing a VPC or VPC child object in NSX

Products

• VCF Operations for Networks
• VMware NSX

Issue/Introduction

• The VMware NSX-T Manager data source shows an error, "Data collection failed due to an error. Please wait for some time. If problem persists, create a support bundle for the Collector VM and contact VMware support."
• You see messages similar to the following in the /var/log/arkin/collector/latest.log on the VCF Operations for Networks collector node:
  
  

  2025-08-13T15:15:14.000951Z WARNING collector 11532 [netw@4413 class="common.utils.CommonUtils" thread="NSXT######.example.com_RouterPort_nsxt.metric.exec.numThreads-4" method="logException" line="2743"] Unable to fetch data from /policy/api/v1/orgs/default/projects/default/vpcs/######/subnets/######/gateway-interface-statistics/summary
  java.util.concurrent.ExecutionException: com.vnera.dataproviders.core.common.impl.dataprovider.utils.exceptions.HttpException: Could not get response for /policy/api/v1/orgs/default/projects/default/vpcs/######/subnets/######/gateway-interface-statistics/summary, status 400
  ...
  Caused by: com.vnera.dataproviders.core.common.impl.dataprovider.utils.exceptions.HttpException: Could not get response for /policy/api/v1/orgs/default/projects/default/vpcs/######/statistics, status 404
  ...
  2025-08-13T15:15:14.000952Z ERROR collector 11532 [netw@4413 class="dataprovider.utils.ResultCodeUtils" thread="NSXT######.example.com_RouterPort_nsxt.metric.exec.numThreads-4" method="getDPResultCode" line="748"] Could not determine exact error code for: NSXT, com.vnera.dataproviders.core.common.impl.dataprovider.utils.exceptions.HttpException: Could not get response for /policy/api/v1/orgs/default/projects/default/vpcs/######/subnets/######/gateway-interface-statistics/summary, status 400

   

• The object noted in the API path of the above messages is a VPC or VPC child object and has been deleted from NSX after VCF Operations for Networks 9.x was configured with the VMware NSX-T Manager data source.

Environment

• VMware NSX 9.x
• VCF Operations for Networks 9.x

Cause

VCF Operations for Networks has a record of an NSX VPC or VPC child object that no longer exists. Attempts to query NSX for such an object will fail and result in the data source entering a failed state

Resolution

This is a known issue affecting VCF Operations for Networks 9.x. There is currently no resolution.

To work around this issue, reboot the VCF Operations for Networks 9.x collector node.

Additional Information

This issue does not result in any loss of data collection, only the noted error in the VCF Operations for Networks 9.x UI.