Fluent: NullReferenceException in VirtualMachineScaleSetImpl.LoadCurrentPrimaryLoadBalancersIfAvailable

[azure]

Fluent: NullReferenceException in VirtualMachineScaleSetImpl.LoadCurrentPrimaryLoadBalancersIfAvailable

[hovsepm]

From @TimLovellSmith on September 5, 2017 19:33

I am not sure what exactly is null. I do wonder if perhaps GetById using NetworkManager is returning null...

[hovsepm]

From @TimLovellSmith on September 14, 2017 19:56

Confirmed that this issue still exists in 1.2.0 too.

[anuchandy]

Came to know from Tim that the internal Load balancer and VMSS are in different subscriptions.

-- VMSS Create --
The application retrieved the LB using an Azure client configured with subscription1. Application is using another instance of Azure client configured with subscription2 to
create the VMSS. The retrieved fully blown LB is provided during VMSS defintion flow. VMSS creation successfully completed.

-- VMSS Update --
Later user is trying to update the VMSS (using second AzureClient), this time we try to retrieve the load balancer associated with the VMSS. Since LB is in a different subscription
LB GET return null, trying to operate on this NULL cause NPE.

We need to see whether we can avoid GETing LB and perform the logics without having fully blown LB object.