I'm trying to test the Ignition OPC UA connection failover option in the Gateway. I have two Kepware OPC UA servers one primary and one secondary. I have configured the failover option in the Ignition Gateway.
When I stop the primary server, the connection successfully swaps to the secondary failover server. However, I am seeing the following websocket error in the logs:
In this suitation where "Failover Threshold" controls the number of retries before failover, what is the recommended value to balance fast failover vs robustness?
Would reducing it to 1 improve resilience by failing over faster, or would keeping it at 3 offer better stability by avoiding false failovers due to transient network errors?
| Logger | Time | Message |
|---|---|---|
| ClientSession | 26Jun2025 16:36:21 | Client re-synchronizing. |
| ProjectRunner | 26Jun2025 16:36:13 | Tried to perform RPC operation on an unrecognized session. May indicate that the previous session was lost. Creating RPC listener for new session id. |
| OpcUaConnection | 26Jun2025 16:36:08 | Swapping connection to FAILOVER endpoint |
| OpcUaConnection | 26Jun2025 16:36:08 | Swapping connection to FAILOVER endpoint |
| OpcUaSubscriptionSynchronizer | 26Jun2025 16:36:03 | subscriptionName=tag-group-default_default, ignSubscription=com.inductiveautomation.ignition.gateway.opcua.client.connection.OpcUaSubscriptionModel$IgnitionSubscription@3e190cd1, opcSubscription=null |
| OpcUaSubscriptionSynchronizer | 26Jun2025 16:36:03 | � |