Kafka - Basics and Event Streaming
You want to reset the offset of a consumer group named 'group1' for topic 'topicA' to the earliest offset using Kafka CLI. Which tool and command would you use?
You want to reset the offset of a consumer group named 'group1' for topic 'topicA' to the earliest offset using Kafka CLI. Which tool and command would you use?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Identify the tool for consumer group offset management
kafka-consumer-groups.sh manages consumer groups and offsets.Step 2: Use the --reset-offsets option with --to-earliest and --execute flags
This resets the group's offset to the earliest for the specified topic.Final Answer:
kafka-consumer-groups.sh --bootstrap-server localhost:9092 --group group1 --topic topicA --reset-offsets --to-earliest --execute -> Option CQuick Check:
Reset offsets = kafka-consumer-groups.sh with --reset-offsets [OK]
Quick Trick: Use kafka-consumer-groups.sh with --reset-offsets to change offsets [OK]
Common Mistakes:
- Using kafka-topics.sh to reset offsets
- Using kafka-console-consumer.sh which only reads messages
- Trying to configure offsets via kafka-configs.sh
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