How Many Basic Components In Splunk Architecture

Overview of Splunk Architecture

Splunk is a powerful tool for data analysis and is one of the most popular solutions for analyzing log files and data sources. Splunk’s architecture is designed for scalability and flexibility. Splunk has four basic components that form its architecture. These components are search heads, indexers, forwarders, and cluster masters.

Search Heads

The search head component of Splunk is the key component for interactive search and analysis. It is a web app that stores search functions, dashboards, views, reports, and visualizations. All search head component of Splunk is based on a distributed architecture, which makes it easy to integrate with the other components of Splunk. The search head component of Splunk is also capable of performing distributed searches across multiple indexers.


The indexers component of Splunk stores and indexes the data. It performs data ingestion, transforms and indexes it from the different data sources. Splunk keeps track of all incoming data and data sources and applies rules and filters to the incoming data. The indexers component also helps in storing and organizing the data and ensuring maximum readability of data.


The forwarders component of Splunk is responsible for collecting the data from the different sources and sending it to the indexers. It is based on a distributed architecture and it can be installed on various data sources. The forwarders are mainly responsible for collecting and sending the data to the indexers.

Cluster Masters

The cluster master component of Splunk is responsible for managing the search head, indexer, and forwarder components. It is responsible for monitoring the performance of the distributed environment and managing the deployment of the components. It is also responsible for scaling the architecture as per the requirements of the user.

Data Streams

Data streams are the data sources from which Splunk retrieves data and stores it in the indexers. It could be virtually any kind of data source, such as flat file, JSON, XML, emails, network traffic, etc. The data streams are associated with the forwarders, which collect the data from these sources and send it to the indexers.

Splunk Connected System

Splunk has a connected system like architecture, where different components are connected in order to form a single logical view of the data. The connected system allows the different components to interact with each other and enable efficient search and analysis of the data. With the connected system, the search queries can be run across the different components and the results can be aggregated and analyzed.

Splunk Cluster Architecture

The Splunk Cluster Architecture is a distributed system of components that are interconnected and able to process large amounts of data. The Splunk cluster consists of search heads, indexers, and forwarders and forms a distributed search architecture. The cluster also takes advantage of large-scale replication and sharding of data to improve search performance. The Splunk cluster is highly scalable and can grow as the business grows.

Authentication and Authorization

Splunk provides comprehensive authentication and authorization features. Authentication is the process of verifying the identity of a user, while authorization is the process of granting access to the data, resources, or services for a user. Splunk provides role-based, customizable authentication and authorization that ensures that only authorized users can access the data.

High Availability and Disaster Recovery

As an enterprise-level data analytics platform, Splunk provides high availability and disaster recovery features. High availability is the process of maintaining consistent uptime of the system, while disaster recovery is a process of recovering data and services in the event of a system failure. Splunk provides the ability to replicate data to another host or system, which allows for fast and efficient recovery in the event of a system failure.

Deployment and Management

Splunk provides a set of tools and services for easy deployment and management of the system. Splunk provides the ability to deploy the components in a cloud or on-premises environment. It also provides the ability to monitor and manage the system from a central dashboard. This makes deployment and management of Splunk much easier compared to other data analytics systems.

Security and Compliance

Splunk provides security and compliance features to ensure the integrity, privacy, and security of the data. Splunk provides the ability to encrypt data both in transit and at rest, and it also provides features for monitoring user activity. Splunk also allows users to configure access controls to ensure that only authorized users are able to access the data. This helps to ensure that the data is secure and compliant with the relevant regulations.

Data Exploration and Analysis

Splunk provides a set of sophisticated tools for exploring and analyzing data. Splunk provides the ability to run complex searches and aggregations on the data and generate comprehensive reports. It also has powerful data visualizations that make it easy to understand complex data sets. With Splunk, users can quickly explore and analyze massive amounts of data.


Splunk is a powerful tool for data analysis and it is one of the most popular data analytics platforms. It has four basic components: search heads, indexers, forwarders, and cluster masters, which form its core architecture. Splunk also provides features such as authentication and authorization, high availability and disaster recovery, deployment and management, security and compliance, and data exploration and analysis. Splunk’s architecture is designed for scalability and flexibility, which makes it suitable for enterprises of all sizes.

Anita Johnson is an award-winning author and editor with over 15 years of experience in the fields of architecture, design, and urbanism. She has contributed articles and reviews to a variety of print and online publications on topics related to culture, art, architecture, and design from the late 19th century to the present day. Johnson's deep interest in these topics has informed both her writing and curatorial practice as she seeks to connect readers to the built environment around them.

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