vApp deployments are stuck in "UNRESOLVED" state

Products

• VMware Cloud Director

Issue/Introduction

• While trying to deploy new vApps from VCD UI, it does not proceed and is stuck in "UNRESOLVED" state.
• In the /opt/vmware/vcloud-director/logs/vcloud-container-debug.log you can see error as below:
  2025-05-03 03:57:46,749 | ERROR | task-service-activity-pool-136442 | FutureUtil | Task future is not complete. | requestId=########-####-####-####-########,request=POST https://<vcd.example.com>/api/vApp/vapp-########-####-####-####-########/action/recomposeVApp,req
uestTime=1746215427297,remoteAddress=##.##.##.##:31753,userAgent=python-requests/2.3.0 CPython/2.7.6 Linux/3.2.0-26-generic,accept=application/*+xml;ver
sion 37.0 vcd=########-####-####-####-########,task=########-####-####-####-######## activity=(com.vmware.vcloud.backendbase.management.system.Task
Activity,urn:uuid:########-####-####-####-########)
com.vmware.ssdc.library.exceptions.VimTaskTimeoutException: The vCenter Server operation ([vcId=########-####-####-####-########, moref=task-4498370])
has taken too long (28800000.00 seconds). VMware Cloud Director considers this operation timed out.
        at com.vmware.vcloud.val.taskmanagement.AsynchronousTaskWaitActivity$WaitForInventoryUpdatePhase.invoke(AsynchronousTaskWaitActivity.java:313)
        at com.vmware.vcloud.activity.executors.ActivityRunner.runPhase(ActivityRunner.java:175)
        at com.vmware.vcloud.activity.executors.ActivityRunner.run(ActivityRunner.java:112)
        at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)
  
  

 

Environment

VMware Cloud Director 10.x

Cause

This issue occurs when VMware Cloud Director loses connectivity to the vCenter server, causing the vApp deployment tasks to time out.

Resolution

To resolve the underlying network connectivity issues between vCenter and VMware Cloud Director refer the article and perform the following validations:

• Verify Network Connectivity:
  From each VCD cell, ping the vCenter server to ensure basic network connectivity is functional.
  
  
• Check Port Availability:
  Confirm that port 443 is open between the VCD cells and vCenter by running the following command:
  curl -v telnet://<vCenter-IP>:443
  
  
• Reconnect vCenter:
  After verifying connectivity, re-establish the connection to vCenter by following the steps outlined in the VMware documentation: Reconnect a vCenter Instance to Your VMware Cloud Director.