Unable to run command because of Unknown actor CheTask error

[sleshchenko]

Description

Unable to run command because of Unknown actor CheTask error.

Reproduction Steps

1. Create a workspace with the following Devfile

Devfile to test

---
apiVersion: 1.0.0
metadata:
  name: python-django
projects:
  -
    name: django-realworld-example-app
    source:
      type: git
      location: "https://github.com/gothinkster/django-realworld-example-app"
components:
  -
    type: chePlugin
    id: ms-python/python/latest
    memoryLimit: 512Mi
  -
    type: dockerimage
    alias: python
    image: centos/python-36-centos7:1
    command: ['sleep']
    args: ['infinity']
    env:
      - name: HOME
        value: /home/user
      - name: PS1
        value: $(echo ${0})\\$
    memoryLimit: 512Mi
    endpoints:
      - name: 'django'
        port: 7000
    mountSources: true
commands:
  -
    name: install requirements
    actions:
      -
        type: exec
        component: python
        command: cd ${CHE_PROJECTS_ROOT}/django-realworld-example-app && pip install -r requirements.txt
  -
    name: migrate
    actions:
      -
        type: exec
        component: python
        command: cd ${CHE_PROJECTS_ROOT}/django-realworld-example-app && python manage.py migrate
  -
    name: patch resources
    actions:
      -
        type: exec
        component: python
        command: cd ${CHE_PROJECTS_ROOT}/django-realworld-example-app && sed -i "s/ALLOWED_HOSTS = \[\]/ALLOWED_HOSTS = \['*'\]/g" conduit/settings.py
  -
    name: run server
    actions:
      -
        type: exec
        component: python
        command: cd ${CHE_PROJECTS_ROOT}/django-realworld-example-app && python manage.py runserver 0.0.0.0:7000

2. Start the created workspace.
3. Run install requirements command and wait until it finishes.
4. Try to run migrate/path resources task.

Expected: Message is shown that task is run successfully.
Actual: Looks like a task is run successfully but an error message is shown:

See screencast:

OS and version:

Diagnostics:
Che Machine Exec Logs

Python plugin logs:

Theia logs:

[RomanNikitenko]

@sleshchenko
If I understand correctly the issue is not reproduced for any command, but is reproduced for the specific command.
Did you tried to give more memory for your containers?

[sleshchenko]

@RomanNikitenko

If I understand correctly the issue is not reproduced for any command, but is reproduced for the specific command.

At some point, the same error appears for any of commands. The Issue has a detailed description of how to reproduce it, let me know if some help is neededn

Did you tried to give more memory for your containers?

Yes, I tried but it did not help me.

[RomanNikitenko]

@sleshchenko

The Issue has a detailed description of how to reproduce it, let me know if some help is neededn

We discussed with you that memory can be the cause of the issue, that's why I asked you

Yes, I tried but it did not help me.

OK, thank you!

[sleshchenko]

I'm not able to reproduce it anymore on my minishift installation.

[RomanNikitenko]

I tried to reproduce the issue on minikube and minishift as well.
I'm not able to reproduce this one, so I'm closing the issue.