resource "catalystcenter_virtual_network_to_fabric_site" "nvName"

[tali1974]

Hi. iam using
dnac Version 2.3.7.7-70047
terrfarom verion v1.9.6

catalystcenter = {
source = "CiscoDevNet/catalystcenter"
version = "0.1.19"
}
I try to add 9 VN ( one of the VN is an INFRA_NV)
with this code
resource "catalystcenter_virtual_network_to_fabric_site" "nvName" {
.....
depends_on = [
catalystcenter_fabric_site.CreateFabric
]
}

terraform apply

do start adding the VNs to the fabric.. after 3-5 vn are added I get this error...
╷
│ Error: Client Error
│
│ with module.site_mm_fabric_labsma1.catalystcenter_virtual_network_to_fabric_site.name_vn,
│ on ../modules/Mod_fabricOnBoardingV1/Fabric.tf line 2, in resource "catalystcenter_virtual_network_to_fabric_site" "name_vn":
│ 2: resource "catalystcenter_virtual_network_to_fabric_site" "name_vn" {
│
│ Failed to configure object (POST), got error: HTTP Request failed: StatusCode 429, {
│ "error" : "Rate Limit exceeded; BapiName: Add VN in fabric, RateLimit config details: RateLimitContext{rate=50, windowUnit='minute', windowDuration=1, maxConcurrentExecutionsPermitted=1}",
│ "bapiExtendedStatusCode" : "REJECTED_ABOVE_MAX_CONCURRENCY_LIMIT",
│ "bapiExtendedStatusDescription" : "For BAPI: Add VN in fabric, DNACP Runtime is at maximum allowed concurrent BAPI executions: 1"
│ }

But it I run terraform apply -parallelism=1 then it works fine..

[Mrhailaf]

#Getting Site ID
data "catalystcenter_site" "xx" {
  name_hierarchy   = "Global/xx"
}

#Getting Fabric Site ID
data "catalystcenter_fabric_site" "xxx" {
  site_id = data.catalystcenter_site.xx.id
}

#Creating a Virtual Network within the fabric Site (xxx)
resource "catalystcenter_fabric_l3_virtual_network" "MDI_TERRAFORM_VN" {
  for_each = local.range
  virtual_network_name = "abc${each.key}_VN"
  fabric_ids           = [data.catalystcenter_fabric_site.xxx.id]
}

im using this ressource to create VN within a fabric site, but im getting this error.

Warning

Failed to configure object (POST), got error: task '0194b403-d099-7946-b359-b431193bd158' failed: TASK_MODIFY_PUT, NCSP11051: Error occurred while processing the 'modify' request. A different
│ version of the same user intent already exists in the database. Additional info for support: taskId: '0194b403-d099-7946-b359-b431193bd158'. Name: 'Global/INGOLSTADT_ING_SDA_LAB'. Incoming
│ resourceVersion: '492'. resourceVersion in the database: '493'.,
│ {"response":{"endTime":1738186952502,"progress":"TASK_MODIFY_PUT","version":1738186952502,"startTime":1738186936473,"errorCode":"NCSP11051","data":"workflow_id=50b355b9-a8ad-4e70-9a73-410d19ee8656;cfs_id=0;rollback_status=not_supported;rollback_taskid=0;failure_task=Validation
│ of business intent:775e57ac-9c9e-4d62-81b3-cb87f0889a9a;processcfs_complete=false","lastUpdate":1738186952484,"serviceType":"NCSP","failureReason":"NCSP11051: Error occurred while processing
│ the 'modify' request. A different version of the same user intent already exists in the database. Additional info for support: taskId: '0194b403-d099-7946-b359-b431193bd158'. Name:
│ 'Global/INGOLSTADT_ING_SDA_LAB'. Incoming resourceVersion: '492'. resourceVersion in the database:
│ '493'.","isError":true,"instanceTenantId":"6139c63e6938076084691bb2","id":"0194b403-d099-7946-b359-b431193bd158"},"version":"1.0"}

i think, that CC doesnt support parallel Creation of VNs from the same user at the same time. that is why for solving the problem i used -parallelism=1.

[kuba-mazurkiewicz]

@tali1974 The Catalyst Center API for creating Layer 3 Virtual Networks is designed to be executed sequentially. Each API request must be completed before initiating the next one. Concurrent execution may result in conflicts or unexpected behavior. As @Mrhailaf mentioned you can use terraform apply with --parallelims=1 option