What is Splunk and its Features

Machine data is a rapidly growing productive segment of big data – which seeks its origin in every component of IT infrastructure, applications, websites, social data, and many more.

Machine data is prominent as it carries a conclusive record of the activity and conduct of customers, servers, networks, and applications. It incorporates configurations, events, message queues, and output of commands, detailed records, and data from industrial enterprises.

Splunk review

The real challenge arises when machine data is in its dizzying array of unpredictable formats, and conventional monitoring and investigation tools without any variety in its variability. This is where the entry of Splunk takes place.

The Splunk platform employs machine data to address the whereabouts of big data, IT operations, and other analytics use cases. The organization’s machine data fabric shares and allows access to the data across its enterprise.

What is Splunk?

Splunk is the care-of address for Machine data, which means it allows several kinds of data arriving from applications, devices, and appliances. It rests on a file-system archive with no schema pre-defined. Splunk software platform is the superior platform for machine data that authorizes users to acquire real-time Operational Intelligence.

It is an automated solution providing thorough and significantly well-organized insights covering system conditions of different scales and purposes. Splunk, because of its distributed architecture allows inspecting live data streams of various sources.

Splunk is a powerful analytical tool for performing a search, correlation, report, alert and store log data.

Splunk Features

The greatest strength of Splunk is that it can index dynamic data. This can be achieved due to its exclusive datamart called ‘index’.

Basic features of this environment are:

  • Regular expressions,
  • Automatic interpretation of intuitive queries,
  • Automatic analysis of data structure
  • Dynamic correlation of various sources
  • User Interaction.

Splunk monitors business activity within the entire infrastructure. It creates exceptional alerts and reports grounded on queries defined. These reports can then be mailed to the respective support team of executives.

Components of Splunk

Below are the three key components of Splunk:

  • Forwarder: It forward data either to distant indexers or local indexers. Data is collected from various sources like log files, TCP, database, etc. and forwarded to indexers or split internally.
  • Indexer: Indexer is termed as the heart of Splunk as it stores, indexes and responds to each and every search request.
  • Search Head: It is the major front-end, generally accessed through the Splunk web interface. Search Heads have the ability of running searches through multiple Indexers, so scaling becomes easy.

These components can be combined, or distributed for full flexibility.

How does Splunk Work?

Splunk is Big Data, in reality. A machine after generating data continuously puts forward the need to analyze it in real-time. The image below explains the same in brief.

The prime function of Splunk is to obtain knowledge and information by indexing and searching machine data. It readily indexes data from the below sources:

  • Files and directories
  • Network events
  • Windows sources
  • Other sources

Splunk indexes and enables searches on any string in the data, working in Google fashion. Splunk is very efficient in Real time processing and it is its biggest asset. The other functions of Splunk include:

  • Access input data in any format like .csv, json.
  • Alerts / Events notification at the outbreak of machine state are provided by configuring Splunk.
  • Predictions regarding scaling the infrastructure are accurate.
  • Generates knowledge objects for Operational Intelligence.

Knowledge Object

Knowledge object is a user-defined entity designed for enriching data by gathering valuable information. These objects are nothing but saved searches, event types, lookups, reports, and alerts which aids in enabling intelligence to systems.

Splunk Products

Splunk Enterprise

Big data of untapped value can be collected and analyzed easily using Splunk Enterprise. This data can be either generated from technology infrastructure or business applications. Splunk Enterprise allows you to drive an operational and business performance by providing deeper insights.

Splunk Cloud

Splunk cloud provides the combined benefits of both Splunk Enterprise and software-as-a-service (SaaS). Splunk Cloud is dependable, scales to multi-terabytes, and proffers an extremely reliable environment.

Splunk Light

Splunk Light is an exhaustive solution for IT enterprises that automates log search and analysis. It lapidifies troubleshooting by collecting log data from distributed applications and infrastructure at one place to enable searches, dashboards and alerts, and real-time analysis—all at a reasonable price.


  • Focused investigation. Recognizing and rectifying security disturbances by automatically distinguishing peculiarities and patterns in data.
  • Intelligent alerting. Minimizing alert fatigue by determining typical models to work under certain circumstances.
  • Predictive actions. Predicting and responding to numerous context like proactive maintenance that otherwise might distort the performance graph.
  • Business optimization. Estimating demand, controlling inventory and proceeding to altering states during analysis of data and other models.

Splunk training gives you deep understanding of various Splunk Components and equips you with all the skills needed to become an excellent Splunk Developer or Administrator of Splunk.


Splunk is an excellent product with extensive uses.

Its mission is to address various challenges and opportunities of governing machine-generated big data. Almost all the leading companies of Fortune 100 and thousands of other organizations, universities, government firms use Splunk to exploit the role of the machine data for IT operations, web intelligence, business analytics, and more.

Splunk provides an easy way to search through text-based log data. It has constantly gone through several changes and emerged as “Google for all your logs”, with newer abilities being added each day.