Idempotent Producers
Prevent duplicate messages caused by automatic producer retries within a producer session.
Continue using supported Kafka clients, familiar APIs, and existing producer-consumer patterns. Atomic Fusion speaks the Kafka wire protocol, delivering a fundamentally different streaming architecture without requiring applications to adopt a proprietary messaging interface. Built for developers who want more from their streaming infrastructure without rewriting their applications.
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For applications using supported Kafka functionality, connecting to Fusion primarily involves updating Kafka client endpoints and authentication settings. Production migrations may require additional work to transfer historical data, preserve consumer positions, and validate application behavior. Get started in three steps:
Create a cluster and topics using the Atomic Fusion console.
Connect your Kafka clients using your Fusion bootstrap endpoints and credentials.
Produce and consume messages using your existing application code.


Fusion supports essential Kafka capabilities, including idempotent producers and static consumer-group membership. These capabilities preserve familiar streaming patterns while allowing applications to benefit from Fusion's underlying architecture.
Prevent duplicate messages caused by automatic producer retries within a producer session.
Coordinate consumers to distribute processing workloads and track progress through streams.
Assign persistent consumer identities to reduce unnecessary group rebalances during brief restarts and interruptions.
Kafka is a broad protocol with many APIs, versions, and optional capabilities. Fusion focuses on core streaming functionality while documenting precisely what is—and isn't—supported. Our compatibility reference covers supported Kafka protocol versions, client libraries, producer and consumer capabilities, and known limitations.
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