VMware Avi Load Balancer Upgrade Failure from 30.2.2 to 31.1.2 due to leading space in the pool name.

Products

• VMware Avi Load Balancer

Issue/Introduction

• The upgrade from version 30.2.2 to 31.1.2 fails.
• The following error occurs during the migrate config task:

  • Failure: MigrateConfig: [Tue May 5 06:42:16 2026]Error while running task:MigrateConfig Unable to complete task MigrateConfig on ['node2.controller.local']. Traceback (most recent call last): File "/opt/avi/python/lib/avi/upgrade/upgrade_tasks.py", line 331, in start self.run() File "/opt/avi/python/lib/avi/upgrade/upgrade_tasks.py", line 595, in run self.run_remote_command(cmd, self.hosts) File "/opt/avi/python/lib/avi/upgrade/upgrade_tasks.py", line 574, in run_remote_command raise RuntimeError("Unable to complete task %s on %s." % (self.name, list(self.err_nodes.keys()))) RuntimeError: Unable to complete task MigrateConfig on ['node2.controller.local']. . (node2.controller.local)

     

• To check further logs.
  
  

  • Login to shell mode on leader controller node
    # shell
    > show upgrade status details filter controller
    Error: Unable to complete task migrate_config on ['node.controller.local']
    
    # Logs to check on Controller Node
    /var/lib/avi/log/upgrade-coordinator.log
    Unable to complete task migrate_config on ['node.controller.local']
    
    # Example log:
    /var/lib/avi/log/task_journal/upgrade_import_config.json
    "details": [
                    "Serializing error {'non_field_errors': [ErrorDetail(string='The fields name, tenant_ref, cloud_ref must make a unique set.', code='unique')]} for PoolSerializer with data: {'uuid': 'pool-########-####-####-####-########', 'name': ' Testpool_name', 'default_server_port': 443, 

 

Environment

VMware AVI Load Balancer

Version: 30.2.2

Cause

• This error is caused by the leading space in the pool name.
  • {'uuid': 'pool-########-####-####-####-########', 'name':' Testpool_name'}

  • # Example log:
    /var/lib/avi/log/task_journal/upgrade_import_config.json
    "details": [
                    "Serializing error {'non_field_errors': [ErrorDetail(string='The fields name, tenant_ref, cloud_ref must make a unique set.', code='unique')]} for PoolSerializer with data: {'uuid': 'pool-########-####-####-####-########', 'name': ' Testpool_name', 'default_server_port': 443,  

Resolution

1. Login to the controller leader node UI.
2. Search the pool name that has leading space in the name.
   1. On the controller UI.
      1. Go to Applications => Pools.
3. Remove the leading space from the pool name.