helm_release hangs with high concurrency

[scott-kausler]

Terraform Version

Terraform v0.12.20

Affected Resource(s)

• helm_release

Terraform Configuration Files

provider "helm" {
  // Helm 3.
  version = "1.1.1"
}

variable "count_installs" {
  type    = number
  default = 1
}

variable "namespace" {
  type    = string
  default = "test"
}

data "helm_repository" "azure_samples" {
  name = "azure-samples"
  url = "https://azure-samples.github.io/helm-charts/"
}

resource "helm_release" "hello_world" {
  count=var.count_installs
  namespace = var.namespace
  name      = "hello-world-${count.index}"
  chart     = "azure-samples/aks-helloworld"
  repository = data.helm_repository.azure_samples.metadata[0].name

  set {
    name  = "title"
    value = "hello-world-${count.index}"
  }

  set {
    name  = "serviceName"
    value = "hello-world-${count.index}"
  }
}

Debug Output

https://gist.github.com/scott-kausler/81d1c38cbb6e49d1898e823402a94aa5

Expected Behavior

All releases should have been created

Actual Behavior

Terraform hangs when creating the resources.

Steps to Reproduce

1. terraform apply -var 'count_installs=11'

If for some reason that works, destroy then bump up the number of count_installs.

Important Factoids

Most of the resources seem to be created:

$ kubectl get deployments -n test
NAME                            READY   UP-TO-DATE   AVAILABLE   AGE
acs-helloworld-hello-world-0    1/1     1            1           77s
acs-helloworld-hello-world-1    1/1     1            1           77s
acs-helloworld-hello-world-10   1/1     1            1           77s
acs-helloworld-hello-world-2    1/1     1            1           77s
acs-helloworld-hello-world-3    1/1     1            1           77s
acs-helloworld-hello-world-4    1/1     1            1           77s
acs-helloworld-hello-world-5    1/1     1            1           77s
acs-helloworld-hello-world-7    1/1     1            1           77s
acs-helloworld-hello-world-8    1/1     1            1           77s
acs-helloworld-hello-world-9    1/1     1            1           77s

However, helm does not show them in the release list:

$ helm list -n test
NAME	NAMESPACE	REVISION	UPDATED	STATUS	CHART	APP VERSION

[aareet]

Related to #458

[aareet]

@scott-kausler we've made some improvements in the latest release - can you please tell us if you are able to reproduce this issue with the latest release?

[scott-kausler]

@aareet I was unable to reproduce this issue with the latest release. Thank you.

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. If you feel I made an error 🤖 🙉 , please reach out to my human friends 👉 hashibot-feedback@hashicorp.com. Thanks!