Apache Samza

What is Apache Samza?

Apache Samza is a distributed stream-processing framework that offers low-latency, fault-tolerant, and easy-to-scale capabilities for handling large volumes of real-time data. Samza processes data as it arrives and provides timely results, making it essential for businesses requiring immediate insights, such as social media platforms, IoT enabled systems, and real-time analytics applications.


Apache Samza originated at LinkedIn, and later, in 2013, it was donated to the Apache Software Foundation. It was designed to overcome challenges related to real-time data processing encountered by LinkedIn. Since then, it has evolved, adding features that improve the processing of streaming data in a distributed environment.

Functionality and Features

Apache Samza offers critical features including:

  • Stream-oriented processing: Samza uses Kafka for messaging, allowing it to process data as streams.
  • Fault-tolerance: Samza persists its results to a distributed and replicated log, making it resilient against hardware failures.
  • Stateful processing: Samza can remember past input and intermediate results over time.


Apache Samza operates on a simple and flexible architecture. It leverages YARN (Yet Another Resource Negotiator) for fault tolerance, isolation, and resource management. The key components are Samza Jobs (the actual processing logic) and Samza Container, where the jobs are executed.

Benefits and Use Cases

Apache Samza plays a vital role in real-time analytics, event-driven systems, and data pipeline applications. It offers benefits such as scalability, fault-tolerant operation, and ease of state management. Companies like LinkedIn, Uber, and eBay use Samza for real-time user activity tracking, real-time monitoring, and stream processing applications.

Challenges and Limitations

While Apache Samza offers many benefits, it does have a few limitations. For instance, it relies heavily on Apache Kafka for messaging and Apache YARN for resource management, which may introduce additional complexities in setup and maintenance.

Integration with Data Lakehouse

In a data lakehouse setup, Apache Samza can be a valuable tool for real-time data ingestion and processing. By integrating Samza with the lakehouse, you can directly stream data into it, while also processing and analyzing this data in real-time, making it accessible for immediate insights.

Security Aspects

Apache Samza, being an Apache project, inherits the robust security features from the Apache Software Foundation. This includes mechanisms like Kerberos for authentication, SSL/TLS for secure data transmission, and SASL for additional security layer.


Compared to other stream processing platforms, Apache Samza offers high throughput and low latency, making it an excellent choice for real-time data processing tasks. It leverages parallel processing and in-memory computation to achieve this high performance.

Frequently Asked Questions

What is Apache Samza? - Apache Samza is an open-source, distributed stream processing framework that focuses on handling large quantities of real-time data.

Who uses Apache Samza? - Companies like LinkedIn, Uber, eBay, and many more are known to use Apache Samza for various use cases, primarily involving real-time data processing and analytics.

What kind of data processing does Apache Samza support? - Apache Samza supports stream-oriented data processing, meaning it processes data as it arrives.

What are some limitations of Apache Samza? - Apache Samza relies heavily on Apache Kafka and YARN, which could add complexity to setup and maintenance. Additionally, it's predominantly suited for streaming data, and may not be optimized for batch processing.

How does Apache Samza integrate with a data lakehouse? - Apache Samza can be used to ingest and process data in real-time from various sources into a data lakehouse, allowing for immediate insights and analyses.


Stream Processing: The practice of taking in, processing, and producing results from data streams in real-time.

Apache Kafka: An open-source, distributed streaming platform designed to handle high volumes of real-time data efficiently.

Apache YARN: A subproject of Hadoop that provides resource management and job scheduling.

Data Lakehouse: A new type of data platform that has the performance of a data warehouse and the flexibility of a data lake.

Fault Tolerance: The ability for a system to continue functioning in the event of a system or component failure.

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