我是Apache Airflow的新手。我的任务是从谷歌云存储读取数据,转换数据并将转换后的数据上传到BigQuery表中。我可以从云存储存储桶中获取数据,并直接存储到BigQuery表中。我不确定如何在这个管道中包含transform函数。 下面是我的代码: # Import libraries needed for the operation
import airflow
from datetime import timedelta, datetime
from airflow import DAG
from airflow.operators.dummy_operator import
我正在尝试运行一个简单的select查询(从biqquery),并使用Composer将结果集加载到另一个bq表中。然而,我在代码的最后一行得到了一个错误。
损坏的DAG: /home/airflow/gcs/dags/es_tc_etl_wkf_mtly.py无效语法(es_tc_etl_wkf_mtly.py,第47行)
代码:
import airflow
from airflow import DAG
from airflow.operators.bash_operator import BashOperator
from airflow.contrib.operators impor
我正在尝试为GCS桶上存在的Parquet文件在Big Query中创建一个外部表。但是,我在气流中运行下面的代码时出错了:
错误:
ERROR - 400 POST https://bigquery.googleapis.com/bigquery/v2/projects/project_dev/datasets/dataset_dev/tables?prettyPrint=false: When defining a table with an ExternalDataConfiguration, a schema must be present on either the Table or
情况是,当我执行这个查询(select query from `bigquery-analytics-workbench.team_bi._airflow_logs_tests)时,我得到了下一个结果:
我想执行保存在此列中的查询,但是当我执行此查询时,EXECUTE IMMEDIATE select query from bigquery-analytics-workbench.team_bi._airflow_logs_tests limit 1返回错误Not found: Dataset bigquery-analytics-workbench:team_bi was not fo
我有一个简单的DAG
from airflow import DAG
from airflow.contrib.operators.bigquery_operator import BigQueryOperator
with DAG(dag_id='my_dags.my_dag') as dag:
start = DummyOperator(task_id='start')
end = DummyOperator(task_id='end')
sql = """
SE
我想从airflow.providers.google.cloud.sensors.bigquery导入BigQueryTableExistenceAsyncSensor
这是我的代码:
from airflow import DAG
from util.dags_hourly import create_dag_write_append #this is class that I created, no issues with other DAG
from airflow.providers.google.cloud.sensors.bigquery import
BigQueryTabl
不熟悉airflow。尝试运行sql并将结果存储在BigQuery表中。
获取以下错误。不确定在何处设置default_rpoject_id。
请帮帮我。
错误:
Traceback (most recent call last):
File "/usr/local/bin/airflow", line 28, in <module>
args.func(args)
File "/usr/local/lib/python2.7/dist-packages/airflow/bin/cli.py", line 585, in test
我正在尝试按照https://aws.amazon.com/blogs/big-data/migrating-data-from-google-bigquery-to-amazon-s3-using-aws-glue-custom-connectors/中的教程使用AWS Glue连接器连接到BigQuery,但在执行完所有步骤后,我得到了一个: : java.lang.IllegalArgumentException: A project ID is required for this service but could not be determined from the builder
我们希望在Dag中的Dag触发器期间从UI读取cli输入传递给dag。我尝试了下面的代码,但它不起作用。在这里,我将输入传递为{“kpi”:“ID123”},并希望在函数get_data_from_bq中打印此ip值。
from airflow import DAG
from airflow.utils.dates import days_ago
from airflow.operators.python_operator import PythonOperator
from airflow import models
from airflow.models import Variabl
我试图在google上的空气流编写器中执行以下DAG,并且一直得到相同的错误:未定义conn_id hard_coded_project_name
也许有人能帮我找到正确的方向?
from airflow.models import DAG
import os
from airflow.operators.dummy import DummyOperator
from airflow.operators.bash_operator import BashOperator
from airflow.operators.python_operator import PythonOperator
我试图在Composer中创建一个DAG。导入时,我将得到以下错误:
损坏的DAG: /home/airflow/gcs/dags/airflow_bigquery_v12.py无法导入名称_parse_data
这是DAG文件。如您所见,它试图将云存储文件复制到bigquery中:
import datetime
from datetime import timedelta, datetime
from airflow import DAG
from airflow.contrib.operators.bigquery_operator import BigQueryOperator
fro
我试图为bigquery使用异步运算符;但是,
from airflow.providers.google.cloud.operators.bigquery import BigQueryCheckAsyncOperator
给出错误:
ImportError: cannot import name 'BigQueryCheckOperatorAsync' from 'airflow.providers.google.cloud.operators.bigquery'
中的文档提到了BigQueryCheckAsyncOperator的存在。
我用的是空气流量2