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  • Book Overview & Buying Mastering Elastic Stack
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Mastering Elastic Stack

Mastering Elastic Stack

By : Kumar Gupta, Gupta
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Mastering Elastic Stack

Mastering Elastic Stack

1 (1)
By: Kumar Gupta, Gupta

Overview of this book

Even structured data is useless if it can’t help you to take strategic decisions and improve existing system. If you love to play with data, or your job requires you to process custom log formats, design a scalable analysis system, and manage logs to do real-time data analysis, this book is your one-stop solution. By combining the massively popular Elasticsearch, Logstash, Beats, and Kibana, elastic.co has advanced the end-to-end stack that delivers actionable insights in real time from almost any type of structured or unstructured data source. If your job requires you to process custom log formats, design a scalable analysis system, explore a variety of data, and manage logs, this book is your one-stop solution. You will learn how to create real-time dashboards and how to manage the life cycle of logs in detail through real-life scenarios. This book brushes up your basic knowledge on implementing the Elastic Stack and then dives deeper into complex and advanced implementations of the Elastic Stack. We’ll help you to solve data analytics challenges using the Elastic Stack and provide practical steps on centralized logging and real-time analytics with the Elastic Stack in production. You will get to grip with advanced techniques for log analysis and visualization. Newly announced features such as Beats and X-Pack are also covered in detail with examples. Toward the end, you will see how to use the Elastic stack for real-world case studies and we’ll show you some best practices and troubleshooting techniques for the Elastic Stack.
Table of Contents (13 chapters)
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Logstash Tips and Tricks


There are a few tips related to Logstash, which are described in the following sections.

Referencing fields and Its values

In the Logstash configuration file, you can refer to a field by its name and can subsequently pass the value of a field into another field. If you want to refer to a top-level field, use the field name directly. If you want to refer to a nested field, use the [top-level field][nested field] syntax. To refer the field, Logstash uses the sprintf format, which helps us to refer to the field values.

The sprintf format is as follows:

%{[top-level field][nested field].....} 

For example:

output {   
        elasticsearch { 
                document_type => "%{@version}" 
                index => "logstash_%{type}_%{+YYYY-MM-dd-H}" 
  } 
} 

Note

The index name cannot contain the following special characters: \, /, *, ?, ", <, >, |, or ,. Also, the index name must be in lowercase only.

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