---
title: "#stateful-processing articles | Hashnode"
description: "Explore 2 articles tagged #stateful-processing on Hashnode. Tutorials, guides, and how-tos from the community."
url: "https://hashnode.com/tag/stateful-processing"
---

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# #stateful-processing

2 posts · 0 followers

[Sachin Kamath](https://hashnode.com/@sachinkamath) · [Jul 2](https://hashnode.com/posts/kafka-streams-a-production-guide-to-joins-aggregations-and-stateful-processing/6a45efb6802ec131c01316a0)

### [Kafka Streams: A Production Guide to Joins, Aggregations, and Stateful Processing](https://zeliot-official.hashnode.dev/kafka-streams-a-production-guide-to-joins-aggregations-and-stateful-processing?utm_source=hashnode&utm_medium=feed)

A complete guide to Kafka Streams joins, windowed aggregations, state stores, & exactly-once semantics. With code examples for prod stream processing.

24 min read · [zeliot-official.hashnode.dev](https://zeliot-official.hashnode.dev/kafka-streams-a-production-guide-to-joins-aggregations-and-stateful-processing?utm_source=hashnode&utm_medium=feed)

[Abstract Algorithms](https://hashnode.com/@abstractalgorithms) · [Apr 19](https://hashnode.com/posts/spark-stateful-aggregations-mapgroupswithstate/69e437e26e738bcf4b61fc35)

### [Stateful Aggregations in Spark Structured Streaming: mapGroupsWithState](https://abstractalgorithms.hashnode.dev/spark-stateful-aggregations-mapgroupswithstate?utm_source=hashnode&utm_medium=feed)

mapGroupsWithState gives you a per-key mutable state machine in a streaming pipeline — it is the right tool when windows are not enough

28 min read · [abstractalgorithms.hashnode.dev](https://abstractalgorithms.hashnode.dev/spark-stateful-aggregations-mapgroupswithstate?utm_source=hashnode&utm_medium=feed)