[Solved] How can you ensure ordering of events in a Kafka topic while still scaling consumers? — Ans: Use keys to send related events to the same partition and scale consumers... | Kafka

Kafka - Event-Driven Architecture

How can you ensure ordering of events in a Kafka topic while still scaling consumers?

AUse keys to send related events to the same partition and scale consumers accordingly

BUse a single partition topic so all events are ordered

CUse multiple partitions and let consumers process events in any order

DDisable consumer groups to force single consumer processing

Step-by-Step Solution

Solution:

Step 1: Understand Kafka partition ordering
Ordering is guaranteed only within a partition, not across partitions.
Step 2: Use keys to control partition assignment
By assigning keys, related events go to the same partition, preserving order for those events.
Step 3: Scale consumers by partition count
Consumers can scale by consuming different partitions independently.
Final Answer:
Use keys to send related events to the same partition and scale consumers accordingly -> Option A
Quick Check:
Keys + partitions = ordered scalable consumption [OK]

Quick Trick: Use keys to keep related events ordered in partitions [OK]

Common Mistakes:

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