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Implementing Splunk 7, Third Edition

Implementing Splunk 7, Third Edition - Third Edition

By : James D. Miller
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Implementing Splunk 7, Third Edition

Implementing Splunk 7, Third Edition

5 (4)
By: James D. Miller

Overview of this book

Splunk is the leading platform that fosters an efficient methodology and delivers ways to search, monitor, and analyze growing amounts of big data. This book will allow you to implement new services and utilize them to quickly and efficiently process machine-generated big data. We introduce you to all the new features, improvements, and offerings of Splunk 7. We cover the new modules of Splunk: Splunk Cloud and the Machine Learning Toolkit to ease data usage. Furthermore, you will learn to use search terms effectively with Boolean and grouping operators. You will learn not only how to modify your search to make your searches fast but also how to use wildcards efficiently. Later you will learn how to use stats to aggregate values, a chart to turn data, and a time chart to show values over time; you'll also work with fields and chart enhancements and learn how to create a data model with faster data model acceleration. Once this is done, you will learn about XML Dashboards, working with apps, building advanced dashboards, configuring and extending Splunk, advanced deployments, and more. Finally, we teach you how to use the Machine Learning Toolkit and best practices and tips to help you implement Splunk services effectively and efficiently. By the end of this book, you will have learned about the Splunk software as a whole and implemented Splunk services in your tasks at projects
Table of Contents (15 chapters)
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All about time


Time is an important and confusing topic in Splunk. If you want to skip this section, absorb one concept: time must be parsed properly on the way into the index, as it cannot be changed later without indexing the raw data again.

How Splunk parses time

Given the date 11-03-04, how would you interpret this date? Your answer probably depends on where you live. In the United States, you would probably read this as November 3, 2004. In Europe, you would probably read this as March 11, 2004. It would also be reasonable to read this as March 4, 2011.

Luckily, most dates are not this ambiguous, and Splunk makes a good effort to find and extract them, but it is absolutely worth the trouble to give Splunk a little help by configuring the time format. We'll discuss the relevant configurations in Chapter 11, Configuring Splunk.

How Splunk stores time

Once the date is parsed, the date stored in Splunk is always stored as a GMT epoch. Epoch time is the number of seconds since January 1, 1970...

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