Exactly Once: Why It's Such a Big Deal for Apache Kafka

Exactly Once: Why It's Such a Big Deal for Apache Kafka

February 9, 2017 Exactly Once: Why It's Such a Big Deal for Apache Kafka Alex Woodie Organizations building real-time stream processing systems on Apache Kafka will be able to trust the platform to deliver each messages exactly once when they adopt new Kafka technology planned to be unveiled this spring, executives with Confluent tell Datanami. While Kafka has emerged as a powerful and capable platform for building real-time streaming applications, it has lacked a key architectural feature that enterprise customers are demanding, Confluent co-founder and CTO Neha Narkhede says. That feature–exactly once guaranteed delivery of messages hitting the queue–is being developed right now and will be fully enabled by the time Kafka Summit takes place in New York City this May. Exactly once processing is a really big deal, Narkhede says. "Getting exactly-once guarantees at scale is not an easy problem," she says.

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