What is the Fault tolerance, recovery, availability SLA for WCF relays created via Azure Relays service

Hi Shagil IMAM,

Azure Relays doesn't explicitly provide detailed documentation on the specific fault tolerance mechanisms, recovery methods, and SLAs for WCF Relays

For WCF relays created via Azure Relay, the service offers an SLA of 99.9% availability, meaning that properly configured applications should be able to establish a connection to a deployed relay 99.9% of the time. This SLA is consistent across Azure's Service Bus Relays, which includes both WCF relays and Hybrid Connections.

In terms of fault tolerance and recovery, Azure Relays rely on the broader fault-tolerance mechanisms inherent in Azure's infrastructure. If a relay connection drops, applications can generally reconnect automatically if they are configured to handle transient faults using retry policies, a best practice for Azure services. However, the service does not offer built-in redundancy or failover within a relay itself. Instead, you would need to architect the application to handle connectivity interruptions, especially for critical applications.

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