Cannot create a new CloudFormation stack alongside an existing DTH stack

[tomclukies]

We are trying to upgrade to v2 of data-transfer-hub. We would like to create a new stack in parallel to the existing, and make sure its in working order before removing the existing stack.

We ran into issues with resource names overlapping. Error message:

Export with name TaskClusterName is already exported by stack DataReplicationHub. Rollback requested by user.

Resource names should be unique between Data Transfer Hub Cloudformation Stacks.

[JoeShi]

Taking a look.

[kaplanan]

Hi @evalzy can we push this issue? It would be great if the Cloudformation resource identifiers contain a dynamically created (unique) suffix to have rolling updates enabled when upgrading DTH stacks.

[evalzy]

hi @kaplanan, we are looking for this, will back to you soon.

[YikaiHu]

Hi @kaplanan , here is the workaround, please using this customized template:

DataTransferHub-cognito-reDeployable.json

Note: the stack name must be all lowercase for this re-deployable template!

I have successfully deployed two DTHs in my account.

[evalzy]

hi @kaplanan , May I know in which case that need install 2 main stack in same account? In solution web console, you can create multiple transfer pipelines to manage tasks.