OLVM: VM Migration Failed with Vdsm Message 'Alias not found for device type balloon during migration at destination host' (Doc ID 2779715.1)

Last updated on JUNE 08, 2021

Applies to:

Symptoms

Virtual Machine migration failed with the following errors in vdsm log files:

• In the source KVM Host
  
  2021-05-21 12:14:08,738-0400 INFO (jsonrpc/5) [jsonrpc.JsonRpcServer] RPC call VM.migrate succeeded in 0.00 seconds (__init__:312)
  2021-05-21 12:14:08,750-0400 ERROR (migsrc/752ac522) [virt.vm] (vmId='752ac522-0eb6-40a7-b43amucskvm058-63d6979902b1') [Errno -2] Name or service not known (migration:282)
  2021-05-21 12:14:08,750-0400 ERROR (migsrc/752ac522) [virt.vm] (vmId='752ac522-0eb6-40a7-b438-63d6979902b1') Failed to migrate (migration:450)
  Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 402, in _regular_run
  self._setupVdsConnection()
  File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 239, in _setupVdsConnection
  client = self._createClient(port)
  File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 227, in _createClient
  client_socket = utils.create_connected_socket(host, int(port), sslctx)
  File "/usr/lib/python2.7/site-packages/vdsm/utils.py", line 435, in create_connected_socket
  socket.AF_UNSPEC, socket.SOCK_STREAM)
  gaierror: [Errno -2] Name or service not known
  
  
• In the destination KVM Host
  
  2021-05-21 12:12:11,457-0400 ERROR (jsonrpc/6) [virt.vm] (vmId='45c6bd63-7be9-4f9a-ad4a-bc333f2220cd') Alias not found for device type balloon during migration at destination host (vm:5583)
  2021-05-21 12:12:11,457-0400 ERROR (jsonrpc/6) [virt.vm] (vmId='45c6bd63-7be9-4f9a-ad4a-bc333f2220cd') Alias not found for device type lease during migration at destination host (vm:5583)

Cause

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