DC/OS deployment issue: Update-AzureRmVmss failure

[soccerGB]

Symptom:

Another transient error in Update-AzureRmVMss call, it fails sometimes.

Log information

Snippet directly from the log:

case 1: Update-AzureRmVmss : A task was canceled. At C:\Jenkins\workspace\dcos-testing-autoscale\DCOS\autoscale-testing\AutoScale.Tests.ps1:200 char:16

• ... $res = Update-AzureRmVmss -ResourceGroupName $RG_NAME -Name $sca ...

• 
      + CategoryInfo          : CloseError: (:) [Update-AzureRmVmss], TaskCanceledException
      + FullyQualifiedErrorId : Microsoft.Azure.Commands.Compute.Automation.UpdateAzureRmVmss
  
      [-] Can increase the scaleset capacity 233.99s
        Expected $null to be different from the actual value, but got the same value.
        201:         $res | Should not be $null
        at Invoke-LegacyAssertion, C:\Program Files\WindowsPowerShell\Modules\Pester\4.3.1\Functions\Assertions\Should.ps1: line 188
        at <ScriptBlock>, C:\Jenkins\workspace\dcos-testing-autoscale\DCOS\autoscale-testing\AutoScale.Tests.ps1: line 201
  
  Case 2:
  w71922901-vmss
  Update-AzureRmVmss : Long running operation failed with status 'Failed'. Additional Info:'An internal execution error 
  occurred.'
  ErrorCode: InternalExecutionError
  ErrorMessage: An internal execution error occurred.
  StartTime: 4/26/2018 9:13:36 PM
  EndTime: 4/26/2018 9:35:50 PM
  OperationID: 0b45f40d-527d-4e32-a8ee-5446c945705d
  Status: Failed
  At C:\Jenkins\workspace\dcos-testing-autoscale\DCOS\autoscale-testing\AutoScale.Tests.ps1:315 char:16

• ... $res = Update-AzureRmVmss -ResourceGroupName $RG_NAME -Name $sca ...

• 
      + CategoryInfo          : CloseError: (:) [Update-AzureRmVmss], ComputeCloudException
      + FullyQualifiedErrorId : Microsoft.Azure.Commands.Compute.Automation.UpdateAzureRmVmss
  
      [-] Can reduce the scaleset capacity 1356.11s
        Expected $null to be different from the actual value, but got the same value.
        316:         $res | Should not be $null
        at Invoke-LegacyAssertion, C:\Program Files\WindowsPowerShell\Modules\Pester\4.3.1\Functions\Assertions\Should.ps1: line 188
        at <ScriptBlock>, C:\Jenkins\workspace\dcos-testing-autoscale\DCOS\autoscale-testing\AutoScale.Tests.ps1: line 316

Status

  Active

[ionutbalutoiu]

I haven't seen this issue at all after the scale tests clean-up committed with:

• https://github.com/Microsoft/mesos-jenkins/pull/62
• https://github.com/Microsoft/mesos-jenkins/commit/a4b8aa263195ef6b2b3aab4469077f93679e34ad

I will re-open the issue if I see it reproduced again.