[英]DAG is not visible on Airflow UI
This is my dag file in dags
folder.这是我在
dags
文件夹中的 dag 文件。
Code that goes along with the Airflow located at:
http://airflow.readthedocs.org/en/latest/tutorial.html
"""
from airflow import DAG
from airflow.operators.dummy_operator import DummyOperator
from airflow.operators.python_operator import PythonOperator
from datetime import datetime, timedelta
from work_file import Test
class Main(Test):
def __init__(self):
super(Test, self).__init__()
def create_dag(self):
default_args = {
"owner": "airflow",
"depends_on_past": False,
"start_date": datetime(2015, 6, 1),
"email": ["airflow@airflow.com"],
"email_on_failure": False,
"email_on_retry": False,
"retries": 1,
"retry_delay": timedelta(minutes=5),
# 'queue': 'bash_queue',
# 'pool': 'backfill',
# 'priority_weight': 10,
# 'end_date': datetime(2016, 1, 1),
}
dag = DAG("python_dag", default_args=default_args, schedule_interval='0 * * * *')
dummy_task = DummyOperator(task_id='dummy_task', retries=3)
python_task = PythonOperator(task_id='python_task', python_callable=self.my_func)
dummy_task >> python_task
if __name__ == "__main__":
a = Main()
a.create_dag()
This is my other file work_file.py
which is in the same dags
folder.这是我在同一个
dags
文件夹中的另一个文件work_file.py
。
class Test:
def __init__(self):
pass
def my_func(self):
return "Hello"
Aim :-The Aim is to call the my_func
from my dag file.目标:-目标是从我的 dag 文件中调用
my_func
。
Problem :- There seems to be no error on the UI,but my dag python_dag
is not visible.问题:- UI 上似乎没有错误,但我的 dag
python_dag
不可见。
My server, scheduler is also running, I've tried restarting the same but nothing happened.我的服务器,调度程序也在运行,我尝试重新启动相同但没有任何反应。
I have imported the file as well ( from work_file import Test
)我也导入了文件(
from work_file import Test
)
Thanks in advance!提前致谢!
There are multiple problems with the DAG: DAG 存在多个问题:
dag=dag
to the constructors.dag=dag
添加到构造函数中。 Eg, DummyOperator(..., dag=dag)
.DummyOperator(..., dag=dag)
。create_dag()
does not return the DAG. create_dag()
不返回 DAG。 Add return dag
.return dag
。__name__
is never '__main__'
.__name__
永远不是'__main__'
。 Remove if __name__ == "__main__":
.if __name__ == "__main__":
。create_dag()
to a variable: dag = a.create_dag()
.create_dag()
的返回值分配给一个变量: dag = a.create_dag()
。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.