Airflow: how to delete a DAG?

Question

I have started the Airflow webserver and scheduled some dags. I can see the dags on web GUI.

How can I delete a particular DAG from being run and shown in web GUI? I

Answer 1

I just wrote a script that deletes everything related to a particular dag, but this is only for MySQL. You can write a different connector method if you are using PostgreSQL. Originally the commands where posted by Lance on https://groups.google.com/forum/#!topic/airbnb_airflow/GVsNsUxPRC0 I just put it in script. Hope this helps. Format: python script.py dag_id

import sys
import MySQLdb

dag_input = sys.argv[1]

query = {'delete from xcom where dag_id = "' + dag_input + '"',
        'delete from task_instance where dag_id = "' + dag_input + '"',
        'delete from sla_miss where dag_id = "' + dag_input + '"',
        'delete from log where dag_id = "' + dag_input + '"',
        'delete from job where dag_id = "' + dag_input + '"',
        'delete from dag_run where dag_id = "' + dag_input + '"',
        'delete from dag where dag_id = "' + dag_input + '"' }

def connect(query):
        db = MySQLdb.connect(host="hostname", user="username", passwd="password", db="database")
        cur = db.cursor()
        cur.execute(query)
        db.commit()
        db.close()
        return

for value in query:
        print value
        connect(value)