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Timeout error when cli output has multiple pages
Hi,
When I use ssh session manually, my device cli command 'show inventory' returns multiple pages of response with '--More--' and I have to use keyboard 'space' bar multiple times, to get to the prompt.
If I use CommandTemplateExecutor (cloudshell cli package) in my Device SHELL, how should we handle multiple pages of command output? I get a timeout error because the cli response is stuck in the first page.
Shell Commands:
from cloudshell.cli.command_template.command_template import CommandTemplate
from cloudshell.cli.command_template.command_template_executor import CommandTemplateExecutor
ERROR_MAP = {}
ACTION_MAP = {}
SHOW_ALL = CommandTemplate('show inventory', ACTION_MAP, ERROR_MAP)
CommandTemplateExecutor(self._cli_service, command_templates.SHOW_ALL).execute_command()
ERROR:
2019-03-12 15:58:40,759 [DEBUG]: QS.Ncn.MainThread session_manager_impl - remove_session SSH session was removed 2019-03-12 15:58:40,759 [INFO]: QS.Ncn.MainThread networking_utils - wrapped Command "discover" finished unsuccessfully Traceback (most recent call last): File "E:/SHELLS/NcnShell/src/run_ncn_driver.py", line 254, in out = driver.get_inventory(context) File "E:\SHELLS\NcnShell\src\ driver.py", line 267, in get_inventory response = autoload_operations.discover() File "E:\SHELLS\lib\site-packages\cloudshell\devices\ networking_utils.py", line 119, in wrapped result = func(self, *args, **kwargs) File "E:\SHELLS\lib\site-packages\cloudshell\devices\runners\ autoload_runner.py", line 61, in discover self.resource_config.name) File "E:\SHELLS\NcnShell\src\ncn\flows\ autoload_flow.py", line 17, in execute_flow card_table = autoload_actions.get_card_table() File "E:\SHELLS\NcnShell\src\ncn\command_actions\ autoload_actions.py", line 51, in get_card_table output = CommandTemplateExecutor(self._cli_service, command_templates.SHOW_ALL).execute_command() File "E:\SHELLS\lib\site-packages\cloudshell\cli\command_template\ command_template_executor.py", line 49, in execute_command **self.optional_kwargs) File "E:\SHELLS\lib\site-packages\cloudshell\cli\ cli_service_impl.py", line 93, in send_command error_map=error_map, logger=logger, *args, **kwargs) File "E:\SHELLS\lib\site-packages\cloudshell\cli\session\ expect_session.py", line 236, in hardware_expect read_buffer = self._receive_all(timeout, logger) File "E:\SHELLS\lib\site-packages\cloudshell\cli\session\ expect_session.py", line 147, in _receive_all raise ExpectedSessionException(self.__class__.__name__, 'Socket closed by timeout') cloudshell.cli.session.session_exceptions.ExpectedSessionException: ('SSHSession', 'Socket closed by timeout')
Regards
Hi Geetha,
I suggest to disable pagination.
Just for info, fixed the error:
CommandTemplate('<Command SHOW ALL>',action_map={r'--[Mm]ore--': lambda session, logger: session.send_line('', logger)})
Regards,
Yaroslav
Hi Geetha,
You can add a command, which disable pagination, to the command mode enter_actions.
'set cli screen-length 0' - the command which disable pagination for junOS.
return CommandMode(device_prompt_re,
enter_command='ssh {}@{}'.format(device_user, device_host),
exit_command='exit',
enter_action_map={
r'password:': lambda session, logger: session.send_line(
device_password, logger)},
enter_actions=lambda session: session.send_command('set cli screen-length 0'))
Or, you can solve this issue by adding action map to the command template.
CommandTemplate('<Command SHOW ALL>',action_map={[(r'--[Mm]ore--', lambda session, logger: session.send_line('', logger))]})
Let me know if that works for you?
Thanks
Regards, Yaroslav
Hi Yaroslav,
Thank you for your quick response. When I tried the action_map code, I got TypeError. Not sure why?
CommandTemplate('<Command SHOW ALL>',action_map={[(r'--[Mm]ore--',lambda session, logger: session.send_line('', logger))]})
File "E:\SHELLS\NcnShell\src\ncn\command_templates\autoload.py", line 11, in
CommandTemplate('<Command SHOW ALL>',action_map={[(r'--[Mm]ore--', lambda session, logger: session.send_line('', logger))]})
TypeError: unhashable type: 'list'
Note: I found a command on the device that turns off paging. So, turning off paging fixed my issue :).
Thanks & Regards
Geetha
Hi Yaroslav,
Thank you for your quick response. When I tried the action_map code, I got TypeError. Not sure why?
CommandTemplate('<Command SHOW ALL>',action_map={[(r'--[Mm]ore--',lambda session, logger: session.send_line('', logger))]})
File "E:\SHELLS\NcnShell\src\ncn\command_templates\autoload.py", line 11, in
CommandTemplate('<Command SHOW ALL>',action_map={[(r'--[Mm]ore--', lambda session, logger: session.send_line('', logger))]})
TypeError: unhashable type: 'list'
Note: I found a command on the device that turns off paging. So, turning off paging fixed my issue :).
Thanks & Regards
Geetha
Thanks Yaroslav
