Internal Pub/Sub to Kafka Mapping
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| Google Internal | Open Source / Industry | GCP | |
|---|---|---|---|
| System | Pub/Sub (internal) | Kafka, RabbitMQ | Cloud Pub/Sub |
| Concept | Messaging | Message queues / Pub-sub | Managed messaging |
Google’s internal Pub/Sub messaging system handles inter-service communication. Externalized as Cloud Pub/Sub on GCP. Industry equivalents include Apache Kafka (log-based), RabbitMQ (traditional broker), and AWS SQS/SNS. Cloud Pub/Sub combines queue and topic semantics.