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https://issues.apache.org/jira/browse/AIRFLOW-2122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16369049#comment-16369049
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Ash Berlin-Taylor commented on AIRFLOW-2122:
--------------------------------------------

How have you defined the {{ssh_node}} connection? I think you (quite rightly) 
specified one of {{compress}} or {{no_host_key_check}} as a boolean, but it 
needs to be a string.

The work around for you is to specify it as a string.

The fix is to make the SSHHook cope with string or boolean for these 
parameters..

> SSHOperator throws an error
> ---------------------------
>
>                 Key: AIRFLOW-2122
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-2122
>             Project: Apache Airflow
>          Issue Type: Bug
>            Reporter: sam sen
>            Priority: Major
>
> Here's my code: 
> {code:java}
> dag = DAG('transfer_ftp_s3', 
> default_args=default_args,schedule_interval=None) }}
> task = SSHOperator(ssh_conn_id='ssh_node', 
>                    task_id="check_ftp_for_new_files", 
>                    command="echo 'hello world'", 
>                    do_xcom_push=True, dag=dag,)
> {code}
>  
> Here's the error
> {code:java}
> [2018-02-19 06:48:02,691] {{base_task_runner.py:98}} INFO - Subtask: 
> Traceback (most recent call last):
> [2018-02-19 06:48:02,691] {{base_task_runner.py:98}} INFO - Subtask:   File 
> "/usr/bin/airflow", line 27, in <module>
> [2018-02-19 06:48:02,692] {{base_task_runner.py:98}} INFO - Subtask:     
> args.func(args)
> [2018-02-19 06:48:02,693] {{base_task_runner.py:98}} INFO - Subtask:   File 
> "/usr/lib/python2.7/site-packages/airflow/bin/cli.py", line 392, in run
> [2018-02-19 06:48:02,695] {{base_task_runner.py:98}} INFO - Subtask:     
> pool=args.pool,
> [2018-02-19 06:48:02,695] {{base_task_runner.py:98}} INFO - Subtask:   File 
> "/usr/lib/python2.7/site-packages/airflow/utils/db.py", line 50, in wrapper
> [2018-02-19 06:48:02,696] {{base_task_runner.py:98}} INFO - Subtask:     
> result = func(*args, **kwargs)
> [2018-02-19 06:48:02,696] {{base_task_runner.py:98}} INFO - Subtask:   File 
> "/usr/lib/python2.7/site-packages/airflow/models.py", line 1496, in 
> _run_raw_task
> [2018-02-19 06:48:02,696] {{base_task_runner.py:98}} INFO - Subtask:     
> result = task_copy.execute(context=context)
> [2018-02-19 06:48:02,697] {{base_task_runner.py:98}} INFO - Subtask:   File 
> "/usr/lib/python2.7/site-packages/airflow/contrib/operators/ssh_operator.py", 
> line 146, in execute
> [2018-02-19 06:48:02,697] {{base_task_runner.py:98}} INFO - Subtask:     
> raise AirflowException("SSH operator error: {0}".format(str(e)))
> [2018-02-19 06:48:02,698] {{base_task_runner.py:98}} INFO - Subtask: 
> airflow.exceptions.AirflowException: SSH operator error: 'bool' object has no 
> attribute 'lower'
> {code}
>  
>  



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