Dead Letter Queues
Dead Letter Queues (DLQs) are a mechanism for handling messages that cannot be processed successfully. This includes:
- Messages with errors in their content or format.
- Messages that exceed their time-to-live (TTL) or delivery attempts.
- Messages that cannot be delivered to any consumer.
DLQs provide way to investigate and potentially reprocess failed messages while preventing them from blocking the system.
Message Queues | System Design
A message queues is a form of service-to-service communication that facilitates asynchronous communication. It asynchronously receives messages from producers and sends them to consumers.
Important Topics for the Message Queues
- What is a Message Queue?
- Primary Purpose of Message Queue
- Key Components of a Message Queue System
- How Message Queue Work
- Need of Message Queue
- Use Cases of Message Queues
- Example for Message Queues
- Implementation of Message Queue
- Types of Message Queue
- Message Serialization
- Message Structure
- Message Routing
- Scalability of Message Queues
- Dead Letter Queues
- Securing Message Queues
- Message Prioritization
- Load Balancing of Messages
- Message Queue Implementation in C++
- Conclusion