[GitHub] [airflow] zachliu commented on issue #13799: Scheduler crashes when unpausing some dags with: TypeError: '>' not supported between instances of 'NoneType' and 'int'

[GitBox <gi...@apache.org>]

zachliu commented on issue #13799:
URL: https://github.com/apache/airflow/issues/13799#issuecomment-784517097


   i'm glad i found this before opening another issue :joy: 
   
   **Apache Airflow version**: 2.0.1
   
   **What happened**:
   
   ```python
   >>> import requests
   >>> from requests.auth import HTTPBasicAuth
   >>> r = requests.get("https://localhost:8080/api/v1/dags/{my_dag_id}/dagRuns/scheduled__2020-04-13T00%3A00%3A00%2B00%3A00/taskInstances", auth=HTTPBasicAuth('username', 'password'))
   >>> r.status_code
   500
   >>> print(r.text)
   {
     "detail": "None is not of type 'integer'\n\nFailed validating 'type' in schema['allOf'][0]['properties']
   ['task_instances']['items']['properties']['pool_slots']:\n    {'type': 'integer'}\n\nOn instance['task_ins
   tances'][0]['pool_slots']:\n    None",
     "status": 500,
     "title": "Response body does not conform to specification",
     "type": "https://airflow.apache.org/docs/2.0.1/stable-rest-api-ref.html#section/Errors/Unknown"
   }
   
   >>> print(r.json()["detail"])
   None is not of type 'integer'
   
   Failed validating 'type' in schema['allOf'][0]['properties']['task_instances']['items']['properties']['poo
   l_slots']:
       {'type': 'integer'}
   
   On instance['task_instances'][0]['pool_slots']:
       None
   ```


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