[GitHub] [airflow] doowhtron opened a new issue #11768: Task is skipped after a branch task

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

doowhtron opened a new issue #11768:
URL: https://github.com/apache/airflow/issues/11768


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   **Apache Airflow version**: 1.10.12
   
   
   **Kubernetes version (if you are using kubernetes)** (use `kubectl version`):
   
   **Environment**:
   
   - **Cloud provider or hardware configuration**: 
   - **OS** (e.g. from /etc/os-release):  centos7
   - **Kernel** (e.g. `uname -a`):
   - **Install tools**:
   - **Others**:
   
   **What happened**:
   
   <!-- (please include exact error messages if you can) -->
   
   My Dag File is as follows:
   ![企业微信截图_160344742810](https://user-images.githubusercontent.com/4937178/96990922-54454d80-155a-11eb-9b00-77eb863c42ab.png)
   
   And it runs like this：
   ![企业微信截图_16034474349964](https://user-images.githubusercontent.com/4937178/96990977-6626f080-155a-11eb-9a70-5c27be69beb4.png)
   
   Task "**join_task**" is not scheduled and in the state of "**skipped**"
   
   **What you expected to happen**:
   
   <!-- What do you think went wrong? -->
   
   I think **join_task** should run after Task **A** since its trigger_rule is "**none_failed_or_skipped**"
   
   **How to reproduce it**:
   <!---
   
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   --->
   
   Use dag code:
   
   `from airflow.models import DAG
   from airflow.operators.dummy_operator import DummyOperator
   from airflow.operators.python_operator import BranchPythonOperator
   
   args = {
       'start_date': airflow.utils.dates.days_ago(2),
       'owner': 'Airflow',
   }
   
   dag = DAG(
       dag_id='example_we_branch_operator_1',
       default_args=args,
       schedule_interval=None,
   )
   
   branching = BranchPythonOperator(
       task_id='branch_task',
       python_callable=lambda: "A",
       dag=dag,
   )
   
   A = DummyOperator(
       task_id='A',
       dag=dag,
   )
   
   join = DummyOperator(
       task_id='join_task',
       trigger_rule='none_failed_or_skipped',
       dag=dag,
   )
   
   branching >> A >> join
   branching >> join`
   
   
   **Anything else we need to know**:
   
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[GitHub] [airflow] doowhtron closed issue #11768: Task is skipped after a branch task

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

doowhtron closed issue #11768:
URL: https://github.com/apache/airflow/issues/11768


   


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[GitHub] [airflow] doowhtron commented on issue #11768: Task is skipped after a branch task

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

doowhtron commented on issue #11768:
URL: https://github.com/apache/airflow/issues/11768#issuecomment-715386300


   just found https://github.com/apache/airflow/pull/10751


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