在使用Airflow SSH operator时,确保指定的远程路径存在并正确。可通过以下示例中的代码判断远程路径是否存在:
from airflow.contrib.operators.ssh_operator import SSHOperator
from airflow.exceptions import AirflowException
ssh_task = SSHOperator(
task_id='remote_file_check',
ssh_conn_id='my_ssh_conn',
command=f'test -e {REMOTE_PATH}',
do_xcom_push=True
)
try:
if not ssh_task.execute(context={}):
raise AirflowException(f'Remote file {REMOTE_PATH} does not exist.')
except AirflowException:
# handle exception here
其中REMOTE_PATH是远程路径。如果路径不存在,则会提交AirflowException。