Seshendranath Balla·hackernoon.com·· 3 min read

Kafka and Spark's 'Real-Time' Illusion: Understanding Controlled Delay

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TL;DR

Kafka and Spark's 'real-time' claims are just an illusion; it's about controlled delay and durability.

Google just killed Kubernetes pricing as we know it. Kafka and Spark, touted as real-time systems, are actually controlled delay mechanisms. Durability trumps instantaneity in these event-driven architectures. Here's the thing: exactly-once processing requires sink cooperation. It's not about being real-time; it's about sustaining a latency budget while staying correct under failure and late data.

Kafka and Spark's 'Real-Time' Illusion: Understanding Controlled Delay — ContentBuffer article

Key Takeaways

  • •Assess your pipeline's latency budget for correctness
  • •Durable event-driven systems prioritize controlled delay over instantaneity
  • •Exactly-once processing relies on sink cooperation
kafkasparkstream-processing
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Originally published by Seshendranath Balla on hackernoon.com. Summarized by ContentBuffer.

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