Client crash because of uncaught exception

[Scaredon]

09:38:17.618Z :client_session_keepalive_manag:130 warning : ClientSessionKeepAliveManager#ping_server serviceResult = BadLicenseExpired (0x810e0000) 09:38:23.438Z :client_session_keepalive_manag:130 warning : ClientSessionKeepAliveManager#ping_server serviceResult = BadLicenseExpired (0x810e0000) 09:38:27.413Z :client_secure_channel_layer :236 requestData not found for requestId = 1830 try with 1831 7 Nov 10:38:27 - [red] Uncaught Exception: 7 Nov 10:38:27 - [error] TypeError: Cannot read properties of undefined (reading 'callback') at MessageBuilder.<anonymous> (C:\Users\XXX\AppData\Roaming\npm\node_modules\node-red-contrib-opcua\node_modules\node-opcua-secure-channel\dist\source\client\client_secure_channel_layer.js:243:42) at MessageBuilder.emit (node:events:514:28) at MessageBuilder._report_error (C:\Users\XXX\AppData\Roaming\npm\node_modules\node-red-contrib-opcua\node_modules\node-opcua-transport\dist\source\message_builder_base.js:128:14) at MessageBuilder._feed_messageChunk (C:\Users\XXX\AppData\Roaming\npm\node_modules\node-red-contrib-opcua\node_modules\node-opcua-transport\dist\source\message_builder_base.js:193:22) at PacketAssembler.<anonymous> (C:\Users\XXX\AppData\Roaming\npm\node_modules\node-red-contrib-opcua\node_modules\node-opcua-transport\dist\source\message_builder_base.js:64:66) at PacketAssembler.emit (node:events:514:28) at PacketAssembler.feed (C:\Users\XXX\AppData\Roaming\npm\node_modules\node-red-contrib-opcua\node_modules\node-opcua-packet-assembler\dist\packet_assembler.js:75:18) at MessageBuilder.feed (C:\Users\XXX\AppData\Roaming\npm\node_modules\node-red-contrib-opcua\node_modules\node-opcua-transport\dist\source\message_builder_base.js:94:35) at ClientSecureChannelLayer._on_receive_message_chunk (C:\Users\XXX\AppData\Roaming\npm\node_modules\node-red-contrib-opcua\node_modules\node-opcua-secure-channel\dist\source\client\client_secure_channel_layer.js:950:29) at ClientTCP_transport.<anonymous> (C:\Users\XXX\AppData\Roaming\npm\node_modules\node-red-contrib-opcua\node_modules\node-opcua-secure-channel\dist\source\client\client_secure_channel_layer.js:795:18)

[mikakaraila]

What happened? Can you repeat crash? Seems to crash inside other package at the network level...

[Scaredon]

Hi @mikakaraila, thanks for your reply. Yes, this crash is repeatable. the opcua server running on a demo licence. After a certain time it kinda stops (don't now what they exactly do there) but it seems that it closes the session with status code "BadLicenseExpired". And this leads to that crash.

[mikakaraila]

What your flow is doing? I mean reading with interval or subscribed items or writing a value? I would like to see what happens just before it crashes...

This seems to be related session keep alive mechanism: ClientSessionKeepAliveManager

Interesting that server will response to keep alive message with BadLicenseExpired. I have seen this with other license related variables as status code.

In other words: I cannot fix this, error is very low level. Not on application level as I think server should report it. What is the server used in this case?

[Scaredon]

I have to create a small example to narrow it down a bit more. Currently there are several clients with different settings in the flows. I don't know which one fails at first. (But all clients are connected to the same server, so they will fail all)

The server (closed SDK) is currently part of a test setup to evaluate some ideas. As I don't have purchased a licence for that SDK, it stops working after a certain time. (It looks like as the server closes the session to the client with Bad - ErrorCode.) And then node-red crashes.

is it helpful to create a small setup? it would be also possible to send you the server (windows only currently)

[mikakaraila]

It would help me to debug exact cause. Windows environment is enough.