Browse Definitions :
Definition

edge node

Contributor(s): Matthew Haughn

An edge node is a computer that acts as an end user portal for communication with other nodes in cluster computing. Edge nodes are also sometimes called gateway nodes or edge communication nodes.

In a Hadoop cluster, three types of nodes  exist:  master, worker and edge nodes. The distinction of roles helps maintain efficiency.

Master nodes control which nodes perform which tasks and what processes run on what nodes. The majority of work is assigned to worker nodes. Worker node store most of the data and perform most of the calculations Edge nodes facilitate communications from end users to master and worker nodes.

Some nodes have important tasks, which may impact performance if interrupted. Edge nodes allow end users to contact worker nodes when necessary, providing a network interface for the cluster without leaving the entire cluster open to communication. That limitation improves reliability and security. As work is evenly distributed between work nodes, the edge node’s role helps avoid data skewing and performance issues.

Despite the three specified types of nodes in a cluster, the roles of each node type are not hard-coded. Administrators are able to assign service roles to any node type. However, some vendors may specify the distinction between nodes to avoid the risk of creating performance and balance issues.

This was last updated in February 2018

Continue Reading About edge node

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • regulatory compliance

    Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business...

  • Whistleblower Protection Act

    The Whistleblower Protection Act of 1989 is a law that protects federal government employees in the United States from ...

  • smart contract

    A smart contract, also known as a cryptocontract, is a computer program that directly controls the transfer of digital currencies...

SearchSecurity

  • RSA algorithm (Rivest-Shamir-Adleman)

    The RSA algorithm is the basis of a cryptosystem -- a suite of cryptographic algorithms that are used for specific security ...

  • remote access

    Remote access is the ability to access a computer or a network remotely through a network connection.

  • IP Spoofing

    IP spoofing is the crafting of Internet Protocol (IP) packets with a source IP address that has been modified to impersonate ...

SearchHealthIT

SearchDisasterRecovery

  • virtual disaster recovery

    Virtual disaster recovery is a type of DR that typically involves replication and allows a user to fail over to virtualized ...

  • tabletop exercise (TTX)

    A tabletop exercise (TTX) is a disaster preparedness activity that takes participants through the process of dealing with a ...

  • risk mitigation

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a data center.

SearchStorage

  • disk array

    A disk array, also called a storage array, is a data storage system used for block-based storage, file-based storage or object ...

  • enterprise storage

    Enterprise storage is a centralized repository for business information that provides common data management, protection and data...

  • optical storage

    Optical storage is any storage type in which data is written and read with a laser. Typically, data is written to optical media, ...

Close