VM Migration

Hi All,

I am seeing the below issue when trying to do vm migration from one node to another one.
Always it is throwing the below error, any body have a clue?

vm_relocate_spec = vim.vm.RelocateSpec()
vm_relocate_spec.host = destination_host
vm_relocate_spec.pool = resource_pool
datastores = destination_host.datastore
print datastores
#Assuming Migrating between local datastores
for datastore in datastores:
    print datastore.summary.type
    if datastore.summary.type == 'VMFS':
        vm_relocate_spec.datastore = datastore
        #dump(datastore)
        break
dump(vm_relocate_spec)
task = vm.Relocate(spec=vm_relocate_spec)

# Wait for Migrate to complete
wait_for_task(task, si)

except vmodl.MethodFault, e:
print "Caught vmodl fault: %s" % e
return 1

<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>
Caught vmodl fault: (vmodl.fault.InvalidArgument) {
dynamicType = ,
dynamicProperty = (vmodl.DynamicProperty) [],
msg = 'A specified parameter was not correct. \n',
faultCause = ,
faultMessage = (vmodl.LocalizableMessage) [],
invalidProperty =
}
<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>

<<<<<<<<<>>>>>>>
obj.str = dynamicType = ,
dynamicProperty = (vmodl.DynamicProperty) [],
datastore = 'vim.Datastore:datastore-37',
diskMoveType = ,
pool = 'vim.ResourcePool:resgroup-30',
host = 'vim.HostSystem:host-36',
disk = (vim.vm.RelocateSpec.DiskLocator) [],
transform = ,
deviceChange = (vim.vm.device.VirtualDeviceSpec) [],
profile = (vim.vm.ProfileSpec) []
}>

Start by reproducing the migration using the shown vim.vm.RelocateSpec setup and the vm.Relocate call, then inspect the vmodl.InvalidArgument details and the populated relocation fields. The issue does not name a repository file or test; done would require identifying the invalid parameter and documenting or correcting the migration usage.