0
我創建了一個DAG,其中包含爲每個工作流調度@daily間隔和單獨的任務ID。但它沒有按照例外運行。有沒有可能這樣做?有沒有其他方法可以爲特定的DAG創建動態任務?並使用命令行暫停特定任務實例?動態創建的任務/ dag在apache airflow中不工作
from __future__ import print_function
from builtins import range
from airflow.operators import PythonOperator,DummyOperator,BranchPythonOperator,SqlSensor
from airflow.models import DAG
from datetime import datetime, timedelta
import time
from pprint import pprint
seven_days_ago = datetime.combine(
datetime.today() - timedelta(7), datetime.min.time())
args = {
'owner': 'varakumar',
'start_date': seven_days_ago,
}
dag = DAG(
dag_id='dynamic_task_creation', default_args=args,
schedule_interval="@daily")
def get_decision():
return "right"
start = DummyOperator(
task_id='start',
dag=dag)
td=datetime.today()
x=str(datetime(td.year,td.month,td.day,td.hour,td.minute,td.second)).replace (" ", "_").replace (":", "-")
pause_task_id = ("pause-%s" % x)
pause = DummyOperator(
task_id=pause_task_id,
dag=dag)
pause.set_upstream(start)
decision = BranchPythonOperator(
task_id='decision',
python_callable=lambda: get_decision(),
dag=dag)
decision.set_upstream(pause)
left = DummyOperator(
task_id='left',
dag=dag)
left.set_upstream(decision)
right = DummyOperator(
task_id='right',
dag=dag)
right.set_upstream(decision)
預先感謝您
您是如何預期它運行的?它是如何運行的? – Mercury