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FreeOpcUa / python-opcua

LGPL Pure Python OPC-UA Client and Server
http://freeopcua.github.io/
GNU Lesser General Public License v3.0
1.35k stars 658 forks source link

Disconnection of server session after 1 minute-TimeoutError #1535

Open Zouzou1988 opened 9 months ago

Zouzou1988 commented 9 months ago

Hello Guys,

Using your library, my client app consists of reading on a dashboard these nodes : air flow, pressure, temperature and position.

After one minute and few secondes of good function, the server stops to operate and display the following error:

---------------Here a tracback:

Connected to: opc.tcp://192.168.0.10:4840 Starting dashboard... 2023-12-27 13:54:47.471348 2023-12-27 13:54:48.796348 2023-12-27 13:54:50.192348 2023-12-27 13:54:51.483348 2023-12-27 13:54:52.769348 2023-12-27 13:54:54.059348 2023-12-27 13:54:55.394348 2023-12-27 13:54:56.711348 2023-12-27 13:54:58.084348 2023-12-27 13:54:59.477348 2023-12-27 13:55:00.979348 2023-12-27 13:55:02.339348 2023-12-27 13:55:03.656348 2023-12-27 13:55:05.057348 2023-12-27 13:55:06.434348 2023-12-27 13:55:07.813348 2023-12-27 13:55:09.212348 2023-12-27 13:55:10.573348 2023-12-27 13:55:11.970348 2023-12-27 13:55:13.360348 2023-12-27 13:55:14.687475 2023-12-27 13:55:16.061475 2023-12-27 13:55:17.540475 2023-12-27 13:55:18.945475 2023-12-27 13:55:20.353475 2023-12-27 13:55:21.679475 2023-12-27 13:55:23.074475 2023-12-27 13:55:24.476475 2023-12-27 13:55:25.897475 2023-12-27 13:55:27.251475 2023-12-27 13:55:28.581475 Traceback (most recent call last): File "C:\Disc Alex\DashBoard\Send_to_database.py", line 75, in get_opcua_data position_dat = position_node.get_value() ^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Disc Alex\DashBoard\venv\Lib\site-packages\opcua\common\node.py", line 155, in get_value result = self.get_data_value() ^^^^^^^^^^^^^^^^^^^^^ File "C:\Disc Alex\DashBoard\venv\Lib\site-packages\opcua\common\node.py", line 164, in get_data_value return self.get_attribute(ua.AttributeIds.Value) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Disc Alex\DashBoard\venv\Lib\site-packages\opcua\common\node.py", line 275, in get_attribute result = self.server.read(params) ^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Disc Alex\DashBoard\venv\Lib\site-packages\opcua\client\ua_client.py", line 347, in read data = self._uasocket.send_request(request) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Disc Alex\DashBoard\venv\Lib\site-packages\opcua\client\ua_client.py", line 83, in send_request data = future.result(self.timeout) ^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.11_3.11.2032.0_x64qbz5n2kfra8p0\Lib\concurrent\futures_base.py", line 458, in result raise TimeoutError() TimeoutError Error 4: disconnection 2023-12-27 13:55:33.559475 2023-12-27 13:55:34.935475 2023-12-27 13:55:36.340475 2023-12-27 13:55:37.648475 2023-12-27 13:55:39.061475 2023-12-27 13:55:40.423475 2023-12-27 13:55:41.816475 2023-12-27 13:55:43.149475 2023-12-27 13:55:44.540475 2023-12-27 13:55:45.935475 2023-12-27 13:55:47.332475 2023-12-27 13:55:48.646475 2023-12-27 13:55:50.051475 2023-12-27 13:55:51.462475 2023-12-27 13:55:52.877475 2023-12-27 13:55:54.212475 2023-12-27 13:55:55.593475 2023-12-27 13:55:57.019475 2023-12-27 13:55:58.405475 2023-12-27 13:55:59.721475 2023-12-27 13:56:01.070475 2023-12-27 13:56:02.430475 2023-12-27 13:56:03.764475 2023-12-27 13:56:05.122475 2023-12-27 13:56:06.525475 2023-12-27 13:56:07.874475 2023-12-27 13:56:09.182475 2023-12-27 13:56:10.552475 2023-12-27 13:56:11.936475 2023-12-27 13:56:13.294475 2023-12-27 13:56:14.623558 2023-12-27 13:56:16.022558 2023-12-27 13:56:17.425558 2023-12-27 13:56:18.778558 2023-12-27 13:56:20.111558 2023-12-27 13:56:21.477558 2023-12-27 13:56:22.859558 2023-12-27 13:56:24.240558 2023-12-27 13:56:25.602558 2023-12-27 13:56:26.996558 2023-12-27 13:56:28.365558 2023-12-27 13:56:29.676558 2023-12-27 13:56:31.057558 2023-12-27 13:56:32.443558 2023-12-27 13:56:33.819558 2023-12-27 13:56:35.144558 2023-12-27 13:56:36.535558 2023-12-27 13:56:37.937558 2023-12-27 13:56:39.315558 2023-12-27 13:56:40.637558 2023-12-27 13:56:42.024558 2023-12-27 13:56:43.425558 2023-12-27 13:56:44.812558 2023-12-27 13:56:46.129558 2023-12-27 13:56:47.545558 2023-12-27 13:56:48.960558 2023-12-27 13:56:50.327558 2023-12-27 13:56:51.658558 2023-12-27 13:56:53.035558 2023-12-27 13:56:54.437558 2023-12-27 13:56:55.826558 2023-12-27 13:56:57.148558 2023-12-27 13:56:58.510558 Traceback (most recent call last): File "C:\Disc Alex\DashBoard\Suivi_conso.py", line 613, in get_opcua_data Temperature_remontee = temperature_node.get_value() ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Disc Alex\DashBoard\venv\Lib\site-packages\opcua\common\node.py", line 155, in get_value result = self.get_data_value() ^^^^^^^^^^^^^^^^^^^^^ File "C:\DiscAlex\DashBoard\venv\Lib\site-packages\opcua\common\node.py", line 164, in get_data_value return self.get_attribute(ua.AttributeIds.Value) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Disc Alex\DashBoard\venv\Lib\site-packages\opcua\common\node.py", line 275, in get_attribute result = self.server.read(params) ^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Disc Alex\DashBoard\venv\Lib\site-packages\opcua\client\ua_client.py", line 347, in read data = self._uasocket.send_request(request) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Disc Alex\DashBoard\venv\Lib\site-packages\opcua\client\ua_client.py", line 83, in send_request data = future.result(self.timeout) ^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.11_3.11.2032.0_x64qbz5n2kfra8p0\Lib\concurrent\futures_base.py", line 458, in result raise TimeoutError() TimeoutError Error 5:

Process finished with exit code 1

p1 p2

Thanks a lot for your help :)

Happy Mery Christmas for all :)