在Google Cloud Composer中使用Airflow的DataprocPySparkOperator设置任务超时时间的方法如下:
from datetime import timedelta
from airflow import DAG
from airflow.contrib.operators.dataproc_operator import DataprocPySparkOperator
from airflow.utils.dates import days_ago
default_args = {
'owner': 'airflow',
'depends_on_past': False,
'start_date': days_ago(1),
'retries': 1,
'retry_delay': timedelta(minutes=5),
'email_on_failure': False,
'email_on_retry': False,
'project_id': 'your-project-id',
'region': 'your-region',
'zone': 'your-zone'
}
with DAG('dataproc_pyspark_operator_example',
default_args=default_args,
schedule_interval=timedelta(days=1)) as dag:
# DAG tasks will be defined here.
task_id = 'dataproc_pyspark_operator_task'
cluster_name = 'your-dataproc-cluster'
main_jar = 'gs://your-bucket/main.jar'
main_class = 'com.example.MainClass'
arguments = ['arg1', 'arg2']
task = DataprocPySparkOperator(
task_id=task_id,
main_jar=main_jar,
main_class=main_class,
arguments=arguments,
cluster_name=cluster_name,
pyfiles=[], # Optional: Add any additional Python files required for the job
dag=dag,
timeout=3600 # Set the timeout value to 1 hour (3600 seconds)
)
在上述代码中,timeout
参数设置了任务的超时时间为1小时(3600秒)。你可以根据需要调整超时时间。
# Add any additional tasks and define their dependencies
task >> ...
请确保将your-project-id
、your-region
、your-zone
、your-dataproc-cluster
、gs://your-bucket/main.jar
、com.example.MainClass
、arg1
和arg2
替换为你的实际值。
这样,使用DataprocPySparkOperator的任务将在一个小时后超时。