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18 lines
692 B
Markdown
18 lines
692 B
Markdown
# Kafka, Zookeeper and Schema Registry
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DataHub uses Kafka as the pub-sub message queue in the backend.
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[Official Confluent Kafka Docker images](https://hub.docker.com/u/confluentinc) found in Docker Hub is used without
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any modification.
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## Debugging Kafka
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You can install [kafkacat](https://github.com/edenhill/kafkacat) to consume and produce messaged to Kafka topics.
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For example, to consume messages on MetadataAuditEvent topic, you can run below command.
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```
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kafkacat -b localhost:9092 -t MetadataAuditEvent
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```
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However, `kafkacat` currently doesn't support Avro deserialization at this point,
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but they have an ongoing [work](https://github.com/edenhill/kafkacat/pull/151) for that.
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