Message connection closed after 10 minutes inactivity

[Bas.v.E]

After testing if it was possible to keep the connection for a message alive and send once in a while a message gave me the following error after pressing the send button.

Error -251232 occurred at NI Skyline Utilities.lvlib:Parse HTTP Error.vi:5080001

Possible reason(s):

Session token '3ca1d12b-951c-4f41-85db-a15b26b672d4' not found.


Complete call chain:
     NI Skyline Utilities.lvlib:Parse HTTP Error.vi:5080001
     NI Skyline Utilities.lvlib:Execute HTTP Verb.vi:7500001
     NI Skyline Message HTTP Library.lvlib:Publish.vi:6370001
     NI Skyline Message HTTP.lvclass:Publish.vi:6370001
     SendMessageTest.vi

At first I couldn't figure out why this error was coming up, but I think this happens because the http session times out after 10 minutes. Does anyone know if there is a way to keep the connection alive? or maybe setup systemlink to increase the timeout or disable it.

[JoshuaP · Accepted solution]

In order to keep the session from being cleaned up on the server you will need to periodically send messages even on a dummy/keep-alive topic or do a 0 timeout read on a dummy topic.