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You're reading from  Apache Kafka Quick Start Guide

Product typeBook
Published inDec 2018
Reading LevelBeginner
PublisherPackt
ISBN-139781788997829
Edition1st Edition
Languages
Java
Tools
Kafka
Concepts
Data Processing
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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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Using the KSQL CLI

The KSQL CLI is a command prompt to interact with KSQL; it is very similar to the one that comes with relational databases such as MariaDB or MySQL. To see all the possible commands, type help and a list with the options will be displayed.

At the moment, we have not informed KSQL of anything. We must declare that something is a table or a stream. We will use the information produced from previous chapters with the producers that write JSON information to the healthchecks topic.

If you remember, the data looks like this:

{"event":"HEALTH_CHECK","factory":"Lake Anyaport","serialNumber":"EW05-HV36","type":"WIND","status":"STARTING","lastStartedAt":"2018-09-17T11:05:26.094+0000","temperature":62.0,"ipAddress":"15.185.195...
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Apache Kafka Quick Start Guide
Published in: Dec 2018Publisher: PacktISBN-13: 9781788997829
© 2018 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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