Apache Kafka use cases, when and how to use it

If you’ve ever wondered what Apache Kafka is and you really don’t know very well how you could get the most out of this solution, in this article We’re going to review some real use cases, where companies from different vertical markets have managed to solve complex problems with their data.

Introduction

Apache Kafka is a data streaming platform. Provides messaging queue management, data integration and data processing capabilities for millions of messages (or events) per second, continuous data updates for mission-critical workloads, and adaptability with cloud environments are part of its characteristics.

In this video, which has two chapters, I show you how to install and configure step-by-step an Apache Kafka instance on MS Windows. In the second part of the video, I show you how Kafka can be integrated with Change Data Capture solutions to accelerate data capture processes from databases in real time (This video is in Spanish, make sure to enable English captions).

Apache Kafka in Financial and Insurance Industry

Fraud Detection

Fraud is a multi-billion dollar business and is increasing every year, especially with the addition of cryptocurrencies. The global economic crime and fraud survey conducted in 2022 by PWC shows that 52% of companies with 10B profits have been affected by a fraud incident.

Specifically in the financial sector, we must deal with a high and constant volume of fraud, illicit transactions, and money laundering. This situation is a major threat to customers of online banking services, in addition to having an impact on small businesses, as they face losses when they are victims of cyber-attacks or illicit transactions.

Apache Kafka in Financial and Insurance Industry

With Apache Kafka, financial institutions can effectively detect fraud and therefore restore their integrity, ensuring the best security measures for their customers. Apache’s platform will allow systems to independently learn behavioral patterns by scanning large data volumes. Once transactional trends are understood, it is easy to detect fraudulent transactions.

Here are some examples of financial institutions that adopted Apache Kafka in their systems:

The Evolution of Kafka at ING Bank

Marching Toward a Trillion Kafka Messages per Day: Running Kafka at scale at PayPal

Transaction processing in Real Time

Using Apache Kafka in real-time transaction processing offers a few benefits that are critical to the efficiency and effectiveness of financial systems and other applications that require low latency and high availability. Here are some of the main benefits:

Horizontal Scalability

Apache Kafka allows you to scale horizontally to handle large volumes of transactions in real time. You can distribute topic partitions on different nodes to improve processing capacity.

Low Latency

Kafka is designed to provide low latency, meaning transactions can be transmitted and processed in real time, crucial for financial applications that require fast responses.

Durability and Fault Tolerance

Apache Kafka stores data durably and offers fault tolerance. This ensures that transactions are not lost, even in situations of temporary outages or node failures.

Integration of Heterogeneous Systems

Kafka makes it easy to integrate heterogeneous systems. You can connect applications written in different languages and run on different platforms, simplifying the architecture of complex systems.

You might be interested: Real-time Analytics with Database Streaming Services: Unleashing Data Insights

Real-Time Data Flow

It enables real-time data transmission and processing, which is essential for financial applications that need to react instantly to market events, detect fraud, or perform real-time risk analysis.

Handling Large Volumes of Data

Kafka is efficient at handling large volumes of data. This is critical in financial environments where the number of transactions can be massive.

Data Reprocessing

Allows reprocessing of historical data. If there are changes to processing logic or new applications are introduced, Kafka provides the ability to reprocess stored data.

Decoupling of Producers and Consumers

Kafka decouples data producers from consumers, meaning that applications can evolve independently without affecting other parts of the system. This facilitates the maintainability and flexibility of the system.

Facilitates Building Microservices

Apache Kafka serves as a key component in building microservices architectures, enabling communication and data transmission between services efficiently.

Monitoring and Metrics

It offers built-in tools and metrics to monitor system performance, making it easy to detect and resolve problems in real time.

Data Persistence and Retention

Apache Kafka allows data retention for a configurable period, facilitating historical analysis and auditing.

These benefits make Apache Kafka a robust choice for real-time transaction processing, providing a robust and scalable infrastructure for financial and other similar applications.

Other Activities where Apache Kafka can Support Financial Operations

Customer Data Management

Financial companies use Apache Kafka to integrate customer data scattered across different systems. This allows a unified customers view, improving services personalization and offering a more complete experience.

Risk Analysis

Apache Kafka is used to transmit data to real-time analytics platforms. This is essential to proactively assess and manage financial risks, identifying patterns and behaviors that could indicate potential risks.

Market Event Processing

For financial institutions, it is crucial to stay on top of market events in real time. Apache Kafka facilitates business data transmission and processing, allowing an informed and faster decision making.

Order Management and Execution

Kafka is used to transmit data related to order management and execution in real time. This is essential for algorithmic trading platforms and order execution systems that require low latency and high availability.

Continue reading: Setting Clear Objectives and Goals for Data Management Projects

Monitoring of Financial Transactions

Transactions traceability is essential in the financial sector. Apache Kafka helps in building distributed transaction logging systems, ensuring integrity, and tracking of transactions across different systems.

Application and Microservices Integration

In a complex financial environment, where various applications and microservices interact, Apache Kafka acts as a centralized channel for communication between these components, facilitating integration and efficient communication.

These examples illustrate how Apache Kafka has become an essential tool for addressing specific challenges and realizing opportunities in the financial industry, providing a robust infrastructure for real-time data management.

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