Unable to call child workflow from parent workflow

[SonaThaj]

I tried this:

Created 2 workflows and tried to call one from the other.

This happened:

The parent workflow faulted, saying that the child workflow could not be found.

But the child exists.

I expected this:

Flow should move from parent to child.

NB: It was working as expected in the earlier Synapse versions.

Is there a workaround?

No

Anything else?

type: https://serverlessworkflow.io/dsl/errors/types/runtime
title: Runtime Error
status: 500
detail: "[404 - Resource Admission Failed] Failed to admit operation 'create' on the specified resource 'synapse.io/v1/namespaces/synapse/workflow-instances/test-child-6421c94769cd2d28ae4b29b32806fe1d':\\r\\nnamespace: Failed to find the specified resource 'test-child-6421c94769cd2d28ae4b29b32806fe1d.synapse'."
instance: /do/0/testsubFlow

Platform(s)

Windows

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[cdavernas]

@SonaThaj I guess you mean workflow, not function?

[SonaThaj]

@SonaThaj I guess you mean workflow, not function?

Sorry, yes, workflow. I have made the edits :)

[cdavernas]

@SonaThaj I tried reproducing the error using the following definitions:

Child flow:

document:
  dsl: 1.0.0-alpha5
  namespace: default
  name: child
  version: 0.1.0
do:
- setFoo:
    set:
      foo: bar

Parent flow:

document:
  dsl: 1.0.0-alpha5
  namespace: default
  name: parent
  version: 0.1.0
do:
- runSubflow:
    run:
      workflow:
        namespace: default
        name: child
        version: 0.1.0
        input: {}

It works as expected. I'll therefore need more information to help you.

N.B.: You might see logs reporting said fault, which is due to the runner attempting to get the subflow instance to check whether it already exist, in case the calling flow and/or the subflow had been suspended.

[SonaThaj]

Hi Charles,

I tried with the same parent and child flows you tried. I'm still getting the same error and I don't see any instances of the child being created. So I'm unable to verify the execution of the child from the parent.

Please find the screenshot below for the execution of the parent instance:

Please fine the image below, stating the error:

child workflow below:

Operator image: ghcr.io/serverlessworkflow/synapse/runner:1.0.0-alpha5.11

[cdavernas]

@SonaThaj Even using the Docker/Kubernetes flavor of Synapse (v1.0.0-alpha5.12), I just can't reproduce your issue 😢 I'm starting to run out of ideas...