Azure Service Bus handling fault tolerance
Azure Service Bus provides several features to handle fault tolerance and ensure reliable message delivery. Here are some key aspects:
| Subject | Explanation |
|---|---|
| Message Retention | Azure Service Bus retains messages for a specific duration, ensuring message availability. |
| Duplicate Detection | Service Bus prevents accidental duplication of messages through configurable duplicate detection. |
| Dead-letter Queue (DLQ) | Messages that cannot be processed successfully are moved to the Dead-letter queue for inspection. |
| Partitioning | Partitioned queues and topics improve throughput and fault tolerance by distributing load. |
| Availability Zones | Premium tier supports deploying Service Bus namespace across Availability Zones for high availability. |
| Auto Forwarding | Auto-forwarding rules redirect messages between queues or topics for load balancing or failover. |
| Message Sessions | Message sessions ensure strict ordering or grouping of related messages during processing. |
| Timeouts and Retry Policies | Setting timeouts and retry policies allows handling transient failures more effectively. |
| Transaction Support | Service Bus supports transactions to ensure messages are either fully processed or not at all. |
| Backup and Disaster Recovery | Implement backup and disaster recovery strategies for critical applications’ data safety. |
| Monitoring and Alerting | Azure Monitor provides insights into performance and health, and alerts can be set up for issues. |