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You're reading from  Fast Data Processing Systems with SMACK Stack

Product typeBook
Published inDec 2016
Reading LevelIntermediate
PublisherPackt
ISBN-139781786467201
Edition1st Edition
Languages
Scala
Tools
MesosApache Spark
Concepts
Data Processing
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Author (1)
Raúl Estrada
Raúl Estrada
author image
Raúl Estrada

Raúl Estrada has been a programmer since 1996 and a Java developer since 2001. He loves all topics related to computer science. With more than 15 years of experience in high-availability and enterprise software, he has been designing and implementing architectures since 2003. His specialization is in systems integration, and he mainly participates in projects related to the financial sector. He has been an enterprise architect for BEA Systems and Oracle Inc., but he also enjoys web, mobile, and game programming. Raúl is a supporter of free software and enjoys experimenting with new technologies, frameworks, languages, and methods. Raúl is the author of other Packt Publishing titles, such as Fast Data Processing Systems with SMACK and Apache Kafka Cookbook.
Read more about Raúl Estrada

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Producers

Producers are applications that create messages and publish them to the broker. Normally, producers are: frontend applications, web pages, web services, backend services, proxies, and adapters to legacy systems. We can write Kafka producers in Java, Scala, C and Python.

The process begins when the producer connects to any live node and requests the metadata about the partitions leaders of a topic, to put the message directly to the partition lead broker.

Producer API

First, we need to understand the classes needed to write a producer:

  • Producer: The producer class is KafkaProducer <K, V> in org.apache.kafka.clients.producer.KafkaProducer

Kafka Producer is a type of Java Generic written in Scala, K specifies the type of the partition key and V specifies the message value.

  • ProducerRecord: The class is ProducerRecord <K, V> in org.apache.kafka.clients.producer.ProducerRecord

This class encapsulates the data required for establishing the connection with the brokers (broker list...

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Fast Data Processing Systems with SMACK Stack
Published in: Dec 2016Publisher: PacktISBN-13: 9781786467201
© 2016 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Raúl Estrada

Raúl Estrada has been a programmer since 1996 and a Java developer since 2001. He loves all topics related to computer science. With more than 15 years of experience in high-availability and enterprise software, he has been designing and implementing architectures since 2003. His specialization is in systems integration, and he mainly participates in projects related to the financial sector. He has been an enterprise architect for BEA Systems and Oracle Inc., but he also enjoys web, mobile, and game programming. Raúl is a supporter of free software and enjoys experimenting with new technologies, frameworks, languages, and methods. Raúl is the author of other Packt Publishing titles, such as Fast Data Processing Systems with SMACK and Apache Kafka Cookbook.
Read more about Raúl Estrada

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