OPCUA Server redundancy

[vidyarao123]

I have 2 OPCUA servers (in different machines) and 1 opcua client . The client will be connected to one server at a time. when the primary server fails, then the client must get connected to the secondary server automatically.

Is this scenario possible to implement using python opcua module ??

[AndreasHeine]

sure!
https://reference.opcfoundation.org/v104/Core/docs/Part4/6.6.2/

[vidyarao123]

You mean through your python opcua module it is possible ?

[AndreasHeine]

sure!
but you should read the link from the reference before continue asking questions its good explained :)
this behaivior must be implemented by yourself!

[vidyarao123]

Alright ,, Sorry I wanted to make sure if I have made my point clear,..

[AndreasHeine]

in opcua-asyncio its already implemented by @ZuZuD https://github.com/FreeOpcUa/opcua-asyncio/blob/master/asyncua/client/ha/ha_client.py but not in python-opcua (lib is in maintaince mode)