Category Archives: Kafka

Inside Santander’s Near Real-Time Data Ingest Architecture

Categories: Flume HBase Kafka

Learn about the near real-time data ingest architecture for transforming and enriching data streams using Apache Flume, Apache Kafka, and RocksDB at Santander UK.

Cloudera Professional Services has been working with Santander UK to build a near real-time (NRT) transactional analytics system on Apache Hadoop. The objective is to capture, transform, enrich, count, and store a transaction within a few seconds of a card purchase taking place. The system receives the bank’s retail customer card transactions and calculates the associated trend information aggregated by account holder and over a number of dimensions and taxonomies.

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Designing Fraud-Detection Architecture That Works Like Your Brain Does

Categories: Flume HBase Kafka Spark Use Case

To design effective fraud-detection architecture, look no further than the human brain (with some help from Spark Streaming and Apache Kafka).

At its core, fraud detection is about detection whether people are behaving “as they should,” otherwise known as catching anomalies in a stream of events. This goal is reflected in diverse applications such as detecting credit-card fraud, flagging patients who are doctor shopping to obtain a supply of prescription drugs,

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Deploying Apache Kafka: A Practical FAQ

Categories: CDH Kafka

This post contains answers to common questions about deploying and configuring Apache Kafka as part of a Cloudera-powered enterprise data hub.

Cloudera added support for Apache Kafka, the open standard for streaming data, in February 2015 after its brief incubation period in Cloudera Labs. Apache Kafka now is an integrated part of CDH, manageable via Cloudera Manager, and we are witnessing rapid adoption of Kafka across our customer base.

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Architectural Patterns for Near Real-Time Data Processing with Apache Hadoop

Categories: Data Ingestion Flume Hadoop HBase Kafka Spark

Evaluating which streaming architectural pattern is the best match to your use case is a precondition for a successful production deployment.

The Apache Hadoop ecosystem has become a preferred platform for enterprises seeking to process and understand large-scale data in real time. Technologies like Apache Kafka, Apache Flume, Apache Spark, Apache Storm, and Apache Samza are increasingly pushing the envelope on what is possible. It is often tempting to bucket large-scale streaming use cases together but in reality they tend to break down into a few different architectural patterns,

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Exactly-once Spark Streaming from Apache Kafka

Categories: Guest Kafka Spark

Thanks to Cody Koeninger, Senior Software Engineer at Kixer, for the guest post below about Apache Kafka integration points in Apache Spark 1.3. Spark 1.3 will ship in CDH 5.4.

The new release of Apache Spark, 1.3, includes new experimental RDD and DStream implementations for reading data from Apache Kafka. As the primary author of those features, I’d like to explain their implementation and usage. You may be interested if you would benefit from:

  • More uniform usage of Spark cluster resources when consuming from Kafka
  • Control of message delivery semantics
  • Delivery guarantees without reliance on a write-ahead log in HDFS
  • Access to message metadata

I’ll assume you’re familiar with the Spark Streaming docs and Kafka docs.

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