MartinKChen commented on issue #19043:
URL: https://github.com/apache/airflow/issues/19043#issuecomment-950750046


   Below is the code for one of Shard DAG that generated by Airflow itself 
automatically after SmartSensor enabled. Which match my previous comment that 
retries is limited to 100 times and smart_sensor_timeout is overwritten to 24 
hour, instead of the default 1 week in __init__. 
   
   ```
   #
   # Licensed to the Apache Software Foundation (ASF) under one
   # or more contributor license agreements.  See the NOTICE file
   # distributed with this work for additional information
   # regarding copyright ownership.  The ASF licenses this file
   # to you under the Apache License, Version 2.0 (the
   # "License"); you may not use this file except in compliance
   # with the License.  You may obtain a copy of the License at
   #
   #   http://www.apache.org/licenses/LICENSE-2.0
   #
   # Unless required by applicable law or agreed to in writing,
   # software distributed under the License is distributed on an
   # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   # KIND, either express or implied.  See the License for the
   # specific language governing permissions and limitations
   # under the License.
   
   """Smart sensor DAGs managing all smart sensor tasks."""
   from datetime import timedelta
   
   from airflow.configuration import conf
   from airflow.models import DAG
   from airflow.sensors.smart_sensor import SmartSensorOperator
   from airflow.utils.dates import days_ago
   
   args = {
       'owner': 'airflow',
   }
   
   num_smart_sensor_shard = conf.getint("smart_sensor", "shards")
   shard_code_upper_limit = conf.getint('smart_sensor', 
'shard_code_upper_limit')
   
   for i in range(num_smart_sensor_shard):
       shard_min = (i * shard_code_upper_limit) / num_smart_sensor_shard
       shard_max = ((i + 1) * shard_code_upper_limit) / num_smart_sensor_shard
   
       dag_id = f'smart_sensor_group_shard_{i}'
       dag = DAG(
           dag_id=dag_id,
           default_args=args,
           schedule_interval=timedelta(minutes=5),
           concurrency=1,
           max_active_runs=1,
           catchup=False,
           dagrun_timeout=timedelta(hours=24),
           start_date=days_ago(2),
       )
   
       SmartSensorOperator(
           task_id='smart_sensor_task',
           dag=dag,
           retries=100,
           retry_delay=timedelta(seconds=10),
           priority_weight=999,
           shard_min=shard_min,
           shard_max=shard_max,
           poke_timeout=10,
           smart_sensor_timeout=timedelta(hours=24).total_seconds(),
       )
   
       globals()[dag_id] = dag
   ```


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: [email protected]

For queries about this service, please contact Infrastructure at:
[email protected]


Reply via email to