Apache Paimon is made to function well with constantly flowing data, which is typical of contemporary systems like financial markets, e-commerce sites, and Internet of Things devices. It is a data storage system made to effectively manage massive volumes of data, particularly for systems that deal to analyze data continuously such as streaming data or with changes over time like database updates or deletions. To put it briefly, Apache Paimon functions similarly to a sophisticated librarian for our data. Whether we are operating a large online business or a little website, it keeps everything organized, updates it as necessary, and ensures that it is always available for use. An essential component of Apache Paimon’s ecosystem, Apache Flink is a real-time stream processing framework that significantly expands its capabilities. Let’s investigate how well Apache Paimon and Apache Flink work with each other so effectively

Handling Real-Time Data Streams

Apache Paimon incorporates real-time streaming updates into the lake architecture by creatively fusing the lake format with a Log-Structured Merge Tree (LSM Tree). LSM Tree is a creative method for managing and organizing data in systems that process a lot of writes and updates, such as databases or storage systems. On the other side, Flink serves as a powerful engine for refining or enhancing streaming data by modifying, enriching, or restructuring it upon arrival of incoming data streams (e.g., transactions, user actions, or sensor readings) in real-time. After that, it saves and refreshes these streams in Paimon, guaranteeing that the data is instantly accessible for further use, such as analytics or reporting. This integration makes it possible to maintain up-to-date datasets even in fast-changing environments.

Consistent and Reliable Data Storage

In real-time data systems, maintaining data consistency—that is, preventing missing, duplicate, or contradictory records—is one of the main issues. To overcome this, Flink and Paimon collaborate as follows:

Flink adds filters, aggregations, or transformations after processing the events. Paimon ensures consistency in the results’ storage, even in the event of updates, deletions, or late-arriving events. As an example, to guarantee that the inventory is always correct, Flink, for instance, may process order updates in an online shopping platform and feed them into Paimon.

Support for Transactions in Streaming Workloads

In order to guarantee data integrity, Paimon supports ACID transactions (Atomicity, Consistency, Isolation, Durability). This transactional model and Flink are closely integrated where writing data into Paimon guarantees that either the entire operation succeeds or nothing is written, avoiding partial or corrupted data. Ensuring exactly-once processing, meaning every piece of data is processed and stored exactly once, even if there are failures. Ensuring exactly-once processing, which means that, despite errors, each piece of data is processed and saved exactly once. In this transactional synergy, Flink and Paimon are a strong option for systems that need to be highly reliable.

Real-Time Analytics and Querying

Paimon is optimized for analytical queries on both real-time and historical data. With Flink, streaming data is immediately available for querying after being processed and stored in Paimon. Paimon organizes and indexes the data so that queries are fast, whether they target historical or current data. This integration allows businesses to perform real-time analytics, like detecting anomalies, generating live dashboards, or deriving customer insights, directly on Paimon’s storage.

Streaming and Batch Support in One

 Flink is renowned for using the same engine to process both the batch and streaming data workloads. Paimon complements this by storing data in a format that is optimized for both types of workloads. By leveraging the capabilities of Flink to process both historical and streaming data together seamlessly, making Flink-Paimon combination is ideal for systems that need a unified approach to data processing, such as customer behavior analysis combining past and current interactions.

Effective Data Compaction and Evolution

Over time, the storage structure for streaming data can lead to fragmentation and inefficiencies. Flink and Paimon together address this, with Paimon organizing data into log-structured merge trees (LSM Trees), which handle frequent updates and deletes efficiently. On the other hand, Flink works with Paimon to compact and merge data periodically, ensuring that storage remains clean and queries remain fast. For instance, a social media platform can manage a high volume of user activity logs without storage inefficiencies.

Real-time fraud detection is an example use case.

Real-time fraud detection is crucial in a financial application. Incoming transactions are processed by Apache Flink, which then forwards them to Paimon after identifying any questionable trends or flagging suspicious patterns.  Paimon stores these flagged transactions, ensuring they’re available for immediate review and long-term analysis. Analysts can query Paimon’s data to investigate fraud patterns and adjust Flink’s processing logic. This demonstrates how Paimon and Flink collaborate to build intelligent, real-time systems.

Note:- Paimon currently supports Flink 1.20, 1.19, 1.18, 1.17, 1.16, 1.15 and at the moment, it offers two different kinds of jars. The bundled jar for read/write data, and the action jar for tasks like manual compaction. You can read here for a download and a quick start with Flink

Takeaway

Apache Flink is a crucial component of Apache Paimon since it offers real-time processing power that enhances Paimon’s strong consistency and storage features. They work together to create a potent ecosystem for handling, processing, and evaluating rapidly evolving data, giving organizations the ability to make decisions instantly and obtain insights while preserving the efficiency and integrity of their data.

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Written by
Gautam Goswami