Deep dive into Splunk Search processing Language (SPL)

Last updated on May 30 2022
Abhimanyu Joshi

Table of Contents

Deep dive into Splunk Search processing Language (SPL)

Splunk – Search Language

The Splunk Search Processing Language (SPL) is a language containing many commands, functions, arguments, etc., which are written to get the desired results from the datasets. For example, when you get a result set for a search term, you may further want to filter some more specific terms from the result set. For this, you need some additional commands to be added to the existing command. This is achieved by learning the usage of SPL.

Components of SPL

The SPL has the following components.

  • Search Terms − These are the keywords or phrases you are looking for.
  • Commands − The action you want to take on the result set like format the result or count them.
  • Functions − What are the computations you are going to apply on the results. Like Sum, Average etc.
  • Clauses − How to group or rename the fields in the result set.

Let us discuss all the components with the help of images in the below section −

Search Terms

These are the terms you mention in the search bar to get specific records from the dataset which meet the search criteria. In the below example, we are searching for records which contain two highlighted terms.

image001 4
Search Terms

Commands

You can use many in-built commands that SPL provides to simplify the process of analysing the data in the result set. In the below example we use the head command to filter out only the top 3 results from a search operation.

image002 7
Commands

Functions

Along with commands, Splunk also provides many in-built functions which can take input from a field being analyzed and give the output after applying the calculations on that field. In the below example, we use the Stats avg() function which calculates the average value of the numeric field being taken as input.

image003 3
Functions

Clauses

When we want to get results grouped by some specific field or we want to rename a field in the output, we use the group by clause and the as clause respectively. In the below example, we get the average size of bytes of each file present in the web_application log. As you can see, the result shows the name of each file as well as the average bytes for each file.

So, this brings us to the end of blog. This Tecklearn ‘Deep dive into Splunk Search processing Language’ helps you with commonly asked questions if you are looking out for a job in Splunk and Big Data Domain.

If you wish to learn Splunk and build a career in Splunk or Big Data domain, then check out our interactive, Splunk Developer and Admin Training, that comes with 24*7 support to guide you throughout your learning period. Please find the link for course details:

https://www.tecklearn.com/course/splunk-training-and-certification-developer-and-admin/

Splunk Developer & Admin Training

About the Course

Tecklearn’s Splunk Training covers all aspects of Splunk development and Splunk administration from basic to expert level. The trainee will go through various aspects of Splunk installation, configuration, etc. and also learn to create reports and dashboards, both using Splunk’s searching and reporting commands. As part of the course, also work on Splunk deployment management, indexes, parsing, Splunk cluster implementation, and more. With this online Splunk training, you can quickly get up and run with the Splunk platform and successfully clear the Splunk Certification exam.

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  • 13,000+ customers in over 110 countries are already using Splunk to gain operational intelligence & reduce operational cost.
  • IDC predicts by 2020, world will be home to 40 trillion GB data. The demand to process this data is higher than ever.

What you will Learn in this Course?

Splunk Administration

Overview of Splunk

  • Need for Splunk and its features
  • Splunk Products and their Use-Case
  • Splunk Components: Search Head, Indexer, Forwarder, Deployment Server & License Master
  • Splunk Licensing options

Splunk Architecture

  • Introduction to the architecture of Splunk

Splunk Installation

  • Download and Install Splunk
  • Configure Splunk
  • Creation of index

Splunk Configuration Files

  • Introduction to Splunk configuration files
  • Managing the. conf files

Splunk App and Apps Management

  • Splunk App
  • How to develop Splunk apps
  • Splunk App Management
  • Splunk App add-ons
  • App permissions and Implementation

User roles and authentication

  • Introduction to Authentication techniques
  • User Creation and Management
  • Splunk Admin Roles and Responsibilities
  • Splunk License Management

Splunk Index Management

  • Splunk Indexes
  • Segregation of the Splunk Indexes
  • Concept of Splunk Buckets and Bucket Classification
  • Creating New Index and estimating Index storage

Various Splunk Input Methods

  • Understanding the input methods
  • Agentless input types

Splunk Universal Forwarder

  • Universal Forwarder management
  • Overview of Splunk Universal Forwarder

Deployment Management in Splunk

  • Implementing the Splunk tool and deploying it on server
  • Splunk environment setup and Splunk client group deployment

Basic Production Environment

  • Universal Forwarder
  • Forwarder Management
  • Data management
  • Troubleshooting and Monitoring

Splunk Search Engine

  • Integrating Search using Head Clustering and Indexer Clustering
  • Conversion of machine-generated data to operational intelligence
  • Set up Dashboard, Charts and Reports

Search Scaling and Monitoring

  • Splunk Distributed Management Console for monitoring
  • Large-scale deployment and overcoming execution hurdles
  • Distributed search concepts
  • Improving search performance

Splunk Cluster Implementation and Index Clustering

  • Cluster indexing
  • Configuring the cluster behaviour
  • Index and search behaviour

Distributed Management Console

  • Introduction to Splunk distributed management console
  • How to deploy distributed search in Splunk environment

Splunk Developer

Splunk Development Concepts

  • Roles and Responsibilities of Splunk developer

Basic Searching

  • Basic Searching using Splunk query
  • Build Search, refine search and time range using Auto-complete
  • Controlling a search job and Identifying the contents of search

Using Fields in Searches

  • Using Fields in search
  • Deployment of Field Extractor and Fields Sidebar for REGEX field extraction

Splunk Search Commands

  • Search command
  • General search practices
  • Concept of search pipeline
  • Specify indexes in search
  • Deployment of the various search commands: Fields, Sort, Tables, Rename, rex and erex

Creating Reports and Dashboards

  • Creation of Reports, Charts and Dashboards
  • Editing Dashboards and Reports
  • Adding reports to dashboard

Creating Alerts

  • Create alerts
  • Understanding alerts
  • Viewing fired alerts

Splunk Commands

  • Splunk Search Commands
  • Transforming Commands
  • Reporting Commands
  • Mapping and Single Value Commands

Lookups

  • Concept of data lookups, examples and lookup tables

Automatic Lookups

  • Configuring and Defining automatic lookups
  • Deploying lookups in reports and searches

Splunk Queries

  • Splunk Queries
  • Splunk Query Repository

Splunk Search Processing Language

  • Learn about the Search Processing Language

Analyzing, Calculating and Formatting results

  • Calculating and analysing results
  • Value conversion
  • Conditional statements and filtering calculated search results

Splunk Reports and Visualizations

  • Explore the available visualizations
  • Create charts and time charts
  • Omit null values and format results

Got a question for us? Please mention it in the comments section and we will get back to you.

 

 

 

 

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