status=Bad_Timeout

[yasodakrishnav]

Hi there.
I'm getting below exception while readValues()

Reading n number of nodes --> List dataValues = client.readValues(0.0, TimestampsToReturn.Both, nodeIdList).get();

UaException: status=Bad_Timeout, message=requestId=3 timed out after 60000ms

i tried setting request timeout to 120000ms in OpcUaClientConfigBuilder, still didn't work. is there any property that i can change to work with slow responding opc servers.

Thanks

[kevinherron]

You probably need to read less Nodes at once rather than keep increasing the timeout.

[yasodakrishnav]

is there any difference between readValue() and readValues() methods. if both works same way like reading single node at time. i can you the readValue() method with minimal timeout if its throw timeout exception, i can catch the exception and continue reading other nodes right?

[kevinherron]

If you use the readValue function you will be reading 1 Node at a time, and reading each Node will have its own timeout. It might take a while or be less efficient to read all your Nodes this way, but it may work.

[yasodakrishnav]

can you explain how does readValues() methods in-depth if possible?
and also could you please suggest me better way to do this?

[kevinherron]

It calls OpcUaClient::read:
https://github.com/eclipse/milo/blob/cd0f3d97f78de3823541229032642f8af9f00040/opc-ua-sdk/sdk-client/src/main/java/org/eclipse/milo/opcua/sdk/client/OpcUaClient.java#L509-L523

There is no "good" way to do this - just ways that might suck less. You need a more reliable server.

[yasodakrishnav]

Alright @kevinherron.. Thanks for you time and help!