Implement a streaming database with the given constraints and requirements.

Focus on outlining the architecture of the streaming database, including how data will flow from input sources to storage and retrieval mechanisms. Be specific about the technologies you would use for real-time data ingestion, processing, and querying, such as Apache Kafka, Apache Flink, or similar tools. Address the constraints and requirements provided in the prompt, ensuring that your design meets performance, scalability, and fault tolerance criteria. Discuss potential trade-offs in your design choices and how they align with the use cases of the streaming database. Finally, be prepared to explain how you would handle data consistency and reliability in a streaming context.