Workflow Termination/Creation Issue Reproduction

This repository contains a reproduction case for an issue where terminating a workflow and immediately creating a new one causes an error.

Expected Result

in all variants, we expect the workflow to be terminated successfully and a new workflow to be created immediately after, returning a new workflow ID.

Actual Result

currently, we are seeing internal error when attempting to create the new workflow immediately after termination.

Variant 1: Single Durable Object Instance

In this variant, a single Durable Object instance handles both the termination of the old workflow and the creation of the new one.

Request: GET /variant1

Response:

{
  "variant": 1,
  "initialWorkflowId": "17c25582-5903-4708-9fb3-6bd3817456dc",
  "result": {
    "log": [
      "Attempting to terminate workflow 17c25582-5903-4708-9fb3-6bd3817456dc",
      "Successfully terminated workflow 17c25582-5903-4708-9fb3-6bd3817456dc",
      "Attempting to create new workflow immediately",
      "Error occurred: internal error"
    ],
    "error": "internal error"
  }
}

Variant 2: Separate Durable Object Instances

In this variant, one Durable Object instance terminates the workflow, and a separate Durable Object instance attempts to create a new workflow immediately after.

Request: GET /variant2

Response:

{
  "variant": 2,
  "initialWorkflowId": "f20c6c6b-280d-4e3c-938c-7863fc26e439",
  "log": [
    "[V2_A] Terminating workflow f20c6c6b-280d-4e3c-938c-7863fc26e439",
    "[V2_A] Terminated workflow",
    "[V2_B] Creating new workflow",
    "Error: Failed to create workflow: internal error"
  ],
  "error": "Failed to create workflow: internal error"
}

Variant 3: Terminate in DO, Create in Fetch Handler

In this variant, a Durable Object terminates the workflow, but the creation of the new workflow happens directly in the Worker's fetch handler.

Request: GET /variant3

Response (This is passing :checkmark):

{
 "variant": 3,
 "initialWorkflowId": "52c7401e-6113-47ff-83dd-d562d55f0d61",
 "newWorkflowId": "d86ab7e6-d486-4506-bb6e-b90bec6ed5f5",
 "log": [
   "[DO] Terminating workflow 52c7401e-6113-47ff-83dd-d562d55f0d61",
   "[DO] Terminated workflow",
   "[Fetch] Creating new workflow",
   "[Fetch] Created new workflow d86ab7e6-d486-4506-bb6e-b90bec6ed5f5"
 ]
}