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⚡ One HLD concept. 60 seconds. Interview ready
Understanding Causality in Distributed Systems
Causality in distributed systems helps understand how events influence each other, beyond just timestamps.
⚡ One HLD concept. 60 seconds. Interview ready
Understanding Lamport Timestamps in Distributed Systems
Lamport Timestamps help order events in distributed systems while preserving causality.
⚡ One HLD concept. 60 seconds. Interview ready
Understanding Physical vs Logical Time in Distributed Systems
Physical time tells when events happen, while logical time tells their order.
⚡ One HLD concept. 60 seconds. Interview ready
Kafka Ordering and Keys: Ensuring Message Order
Kafka maintains message order within partitions using keys for routing.
⚡ One HLD concept. 60 seconds. Interview ready
Understanding Vector Clocks in Distributed Systems
Vector clocks help track the order and concurrency of events in distributed systems.
⚡ One HLD concept. 60 seconds. Interview ready
Transactional Outbox Pattern: Never Lose Events!
The Transactional Outbox Pattern ensures database updates and event publishing are synchronized to avoid losing events.
⚡ One HLD concept. 60 seconds. Interview ready
Understanding Distributed Clocks in Systems Design
In distributed systems, timestamps don't always reflect the true order of events.
⚡ One HLD concept. 60 seconds. Interview ready
Kafka Async Commit Ordering: Can Older Offsets Overwrite Newer Ones?
Older offsets can overwrite newer ones in Kafka if not handled properly.
⚡ One HLD concept. 60 seconds. Interview ready
HLD: Understanding Request-Response vs Events in System Design
Request-Response asks for a result, while Events notify that something has happened.
⚡ One HLD concept. 60 seconds. Interview ready
Kafka Streams Windowing: Tumbling vs Hopping Windows Explained
Kafka Streams uses tumbling and hopping windows for time-based data aggregation.
⚡ One HLD concept. 60 seconds. Interview ready
Kafka Consumer Reprocessing: Safe Event Replay Strategies
Kafka consumer reprocessing involves safely replaying events to correct system states.
⚡ One HLD concept. 60 seconds. Interview ready
Kafka Replay Without Breaking Production: Safe Architecture
You can replay Kafka events safely by separating live and replay processes.
⚡ One HLD concept. 60 seconds. Interview ready
Kafka Producer Reliability: ACKs, Retries & Idempotence
Kafka producers use ACKs, retries, and idempotence to ensure reliable message delivery.
⚡ One HLD concept. 60 seconds. Interview ready
Queue vs Pub/Sub: Key Differences in System Design
Queues distribute tasks to one consumer, while Pub/Sub broadcasts events to multiple subscribers.
⚡ One HLD concept. 60 seconds. Interview ready
Kafka Stateful Stream Processing: How Does It Remember?
Kafka uses state stores to remember previous events in stateful stream processing.