Ich experimentiere mit dem Luftstrom für Datenpipelines. Ich kann es leider noch nicht mit dem BigQuery-Operator zum Laufen bringen. Ich habe nach bestmöglicher Lösung gesucht, stecke aber immer noch fest. Ich verwende den sequentiellen Executor, der lokal ausgeführt wird.

Hier ist mein Code:

from airflow import DAG
from airflow.contrib.operators.bigquery_operator import BigQueryOperator
from datetime import datetime, timedelta

default_args = {
    'owner': 'airflow',
    'depends_on_past': False,
    'start_date': datetime(2015, 6, 1),
    'email': ['[email protected]'],
    '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(dag_id='bigQueryPipeline', default_args=default_args, schedule_interval=timedelta(1))

t1 = BigQueryOperator(
 task_id='bigquery_test',
bql='SELECT COUNT(userId) FROM [events:EVENTS_20160501]',
destination_dataset_table=False,
bigquery_conn_id='bigquery_default',
delegate_to=False,
udf_config=False,
dag=dag,
)`

Die Fehlermeldung:

[2016-08-27 00:13:14,665] {models.py:1327} ERROR - 'project'
Traceback (most recent call last):
  File "/Users/jean.rodrigue/anaconda/bin/airflow", line 15, in <module>
    args.func(args)
  File "/Users/jean.rodrigue/anaconda/lib/python2.7/site-packages/airflow/bin/cli.py", line 352, in test
    ti.run(force=True, ignore_dependencies=True, test_mode=True)
  File "/Users/jean.rodrigue/anaconda/lib/python2.7/site-packages/airflow/utils/db.py", line 53, in wrapper
    result = func(*args, **kwargs)
  File "/Users/jean.rodrigue/anaconda/lib/python2.7/site-packages/airflow/models.py", line 1245, in run
    result = task_copy.execute(context=context)
  File "/Users/jean.rodrigue/anaconda/lib/python2.7/site-packages/airflow/contrib/operators/bigquery_operator.py", line 57, in execute
    conn = hook.get_conn()
  File "/Users/jean.rodrigue/anaconda/lib/python2.7/site-packages/airflow/contrib/hooks/bigquery_hook.py", line 54, in get_conn
    project = connection_extras['project']