compute Capacity Reservation Group Delete Fails With no Reservations

[myc2h6o]

Hi, I'm using On-demand Capacity Reservation feature and have found an issue with Delete: When I tries deleting the Capacity Reservation Group shortly after (in fewer than 5 seconds) I delete all the reservations in it, it throws an error of still having nested resource in it.

Below is what I tested using Invoke-WebRequest PowerShell command to make the REST API requests. Because it happens only within a short range, I invoked the DELETE in a batch and used GET to check the result. As can be seen below: in the second GET response, capacityReservations is already removed from the CapacityReservationGroup, but the subsequent DELETE still cannot delete it. And I'm only able to invoke the DELETE after about 5 seconds.

PS C:\Users\yicma> Write-Host "`nCapacity Reservation Group before deleting the reservation:`n"
>>
>> (Invoke-WebRequest -UseBasicParsing -Headers $headers -Method "GET" https://management.azure.com/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/yicma/providers/Microsoft.Compute/capacityReservationGroups/yicma-cap-test?api-version=2021-11-01).Content
>>
>> Write-Host "`nDeleting Reservations:`n"
>>
>> (Invoke-WebRequest -UseBasicParsing -Headers $headers -Method "DELETE" https://management.azure.com/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/yicma/providers/Microsoft.Compute/capacityReservationGroups/yicma-cap-test/capacityReservations/reserve-0?api-version=2021-11-01).Content
>>
>> Write-Host "`nCapacity Reservation Group after deleting the reservation:`n"
>>
>> (Invoke-WebRequest -UseBasicParsing -Headers $headers -Method "GET" https://management.azure.com/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/yicma/providers/Microsoft.Compute/capacityReservationGroups/yicma-cap-test?api-version=2021-11-01).Content
>>
>> Write-Host "`nDeleting Capacity Reservation Group:`n"
>>
>> (Invoke-WebRequest -UseBasicParsing -Headers $headers -Method "DELETE" https://management.azure.com/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/yicma/providers/Microsoft.Compute/capacityReservationGroups/yicma-cap-test?api-version=2021-11-01).Content 

Capacity Reservation Group before deleting the reservation:

{
  "name": "yicma-cap-test",
  "id": "/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/YICMA/providers/Microsoft.Compute/capacityReservationGroups/yicma-cap-test",
  "type": "Microsoft.Compute/capacityReservationGroups",
  "location": "eastus",
  "tags": {
    "a": "b"
  },
  "properties": {
    "capacityReservations": [
      {
        "id": "/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/YICMA/providers/Microsoft.Compute/capacityReservationGroups/YICMA-CAP-TEST/capacityReservations/RESERVE-0"
      }
    ]
  }
}

Deleting Reservations:


Capacity Reservation Group after deleting the reservation:

{
  "name": "yicma-cap-test",
  "id": "/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/YICMA/providers/Microsoft.Compute/capacityReservationGroups/yicma-cap-test",
  "type": "Microsoft.Compute/capacityReservationGroups",
  "location": "eastus",
  "tags": {
    "a": "b"
  }
}

Deleting Capacity Reservation Group:

Invoke-WebRequest : {"error":{"code":"CannotDeleteResource","message":"Can not delete resource before nested resources are deleted."}}
At line:15 char:2
+ (Invoke-WebRequest -UseBasicParsing -Headers $headers -Method "DELETE ...
+  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-WebRequest], WebException
    + FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeWebRequestCommand

[myc2h6o]

It looks similar to #18572 and #8137

[ghost]

Thanks for the feedback! We are routing this to the appropriate team for follow-up. cc @Drewm3, @avirishuv.

Issue Details

---

Hi, I'm using On-demand Capacity Reservation feature and have found an issue with Delete: When I tries deleting the Capacity Reservation Group shortly after (in fewer than 5 seconds) I delete all the reservations in it, it throws an error of still having nested resource in it.

Below is what I tested using Invoke-WebRequest PowerShell command to make the REST API requests. Because it happens only within a short range, I invoked the DELETE in a batch and used GET to check the result. As can be seen below: in the second GET response, capacityReservations is already removed from the CapacityReservationGroup, but the subsequent DELETE still cannot delete it. And I'm only able to invoke the DELETE after about 5 seconds.

PS C:\Users\yicma> Write-Host "`nCapacity Reservation Group before deleting the reservation:`n"
>>
>> (Invoke-WebRequest -UseBasicParsing -Headers $headers -Method "GET" https://management.azure.com/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/yicma/providers/Microsoft.Compute/capacityReservationGroups/yicma-cap-test?api-version=2021-11-01).Content                                                                                                                                                                                                          >>                                                                                                                                                                                                                                           >> Write-Host "`nDeleting Reservations:`n"                                                                                                                                                                                                   >>
>> (Invoke-WebRequest -UseBasicParsing -Headers $headers -Method "DELETE" https://management.azure.com/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/yicma/providers/Microsoft.Compute/capacityReservationGroups/yicma-cap-test/capacityReservations/reserve-0?api-version=2021-11-01).Content
>>
>> Write-Host "`nCapacity Reservation Group after deleting the reservation:`n"
>>
>> (Invoke-WebRequest -UseBasicParsing -Headers $headers -Method "GET" https://management.azure.com/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/yicma/providers/Microsoft.Compute/capacityReservationGroups/yicma-cap-test?api-version=2021-11-01).Content
>>
>> Write-Host "`nDeleting Capacity Reservation Group:`n"                                                                                                                                                                                     >>                                                                                                                                                                                                                                           >> (Invoke-WebRequest -UseBasicParsing -Headers $headers -Method "DELETE" https://management.azure.com/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/yicma/providers/Microsoft.Compute/capacityReservationGroups/yicma-cap-test?api-version=2021-11-01).Content 
                                                                                                                                                                              
Capacity Reservation Group before deleting the reservation:

{
  "name": "yicma-cap-test",
  "id": "/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/YICMA/providers/Microsoft.Compute/capacityReservationGroups/yicma-cap-test",
  "type": "Microsoft.Compute/capacityReservationGroups",
  "location": "eastus",
  "tags": {
    "a": "b"
  },
  "properties": {
    "capacityReservations": [
      {
        "id": "/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/YICMA/providers/Microsoft.Compute/capacityReservationGroups/YICMA-CAP-TEST/capacityReservations/RESERVE-0"
      }
    ]
  }
}

Deleting Reservations:


Capacity Reservation Group after deleting the reservation:

{
  "name": "yicma-cap-test",
  "id": "/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/YICMA/providers/Microsoft.Compute/capacityReservationGroups/yicma-cap-test",
  "type": "Microsoft.Compute/capacityReservationGroups",
  "location": "eastus",
  "tags": {
    "a": "b"
  }
}

Deleting Capacity Reservation Group:

Invoke-WebRequest : {"error":{"code":"CannotDeleteResource","message":"Can not delete resource before nested resources are deleted."}}
At line:15 char:2
+ (Invoke-WebRequest -UseBasicParsing -Headers $headers -Method "DELETE ...
+  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-WebRequest], WebException
    + FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeWebRequestCommand

Author:	myc2h6o
Assignees:	-
Labels:	question, Compute - VM, Service Attention, customer-reported, needs-triage
Milestone:	-

[avirishuv]

hi @oriwolman or @TravisCragg-MSFT would you please take a look at this issue?

[TravisCragg-MSFT]

@myc2h6o Does the deletion succeed after several minutes has passed, or does it continue to fail?

[myc2h6o]

Hi @TravisCragg-MSFT the deletion will succeed after a few seconds.

[TravisCragg-MSFT]

@myc2h6o Have you tried doing the same via PowerShell or CLI to see if the behavior is the same?

[myc2h6o]

@TravisCragg-MSFT I haven't tried PowerShell or CLI, I only tried REST API.

[jaylabell]

@TravisCragg-MSFT are you still looking into this issue?

[TravisCragg-MSFT]

I am following up with our team to fix this delay, or update the error message to state a wait period.

[TravisCragg-MSFT]

@myc2h6o This failure can occur sometimes if the delete of the Capacity Reservations has not fully synced and you call a delete for the group. When calling these programmatically, a small delay between the nested resource delete and the Reservation Group delete should resolve this issue.