Apache Samza

Apache Samza is ranked #13 of 21 in stream processing software on The Geeks Club. It runs on API, Linux, Self-hosted. There is a free plan.

Apache Samza plans and pricing

Apache Samza Free Open-source stream-processing framework · source artifacts and Maven distribution samza.apache.org · 2 Oct 2026

Compared on stream processing software

Free plan: Yes
Stateful processing: Yes
Supported languages: Java, Scala

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Apache Samza

Purpose: Apache Samza is a distributed stream-processing framework for building stateful applications that process data in real time from multiple sources.
Processing: Samza supports both stateless and stateful stream processing, with a scalable, fault-tolerant state store for stateful workloads.
APIs: It provides a high-level Streams API, a low-level Task API, Samza SQL, and an Apache Beam API; Python and Go support for Beam are described as work in progress.
Integrations: Built-in integrations include Apache Kafka, AWS Kinesis, Azure Event Hubs, Elasticsearch, and Apache Hadoop, and custom sources can also be integrated.
Deployment: Samza supports deployment on YARN, Kubernetes, or as a standalone library, and its documentation describes running applications across public clouds, containerized environments, and bare-metal hardware.
Recovery: Samza supports host affinity and incremental checkpointing to help recover tasks and their associated state after failures.
Processing guarantee: Samza supports at-least-once processing.
Security: The background documentation says Samza works with YARN, which supports Hadoop’s security model, and uses Linux cgroups for resource isolation.
Scale: The documentation says Samza has been used in applications with several terabytes of state and thousands of cores.
Supported language: Samza can be embedded as a lightweight client library in Java and Scala applications.
Distribution: Samza is distributed as a source artifact and through Maven; the download page says it does not have a binary release at this time.
Support: The project directs users to a user mailing list subscribed to by Samza users, contributors, and committers.
Founded: 2013
Price from: Free

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Where it ranks on The Geeks Club

Best Stream Processing Software in 2026#13 of 21
Best Streaming Analytics Software in 2026#15 of 19

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Sources

samza.apache.org· checked 2 Oct 2026
samza.apache.org/learn/documentation/latest/core-concept· checked 2 Oct 2026
samza.apache.org/learn/documentation/latest/introduction· checked 2 Oct 2026
samza.apache.org/startup/download/· checked 2 Oct 2026
samza.apache.org/community/contact-us.html· checked 2 Oct 2026