Browse Definitions :
Definition

edge node

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 September 2020

Continue Reading About edge node

SearchNetworking
SearchSecurity
  • man in the browser (MitB)

    Man in the browser (MitB) is a security attack where the perpetrator installs a Trojan horse on the victim's computer that is ...

  • Patch Tuesday

    Patch Tuesday is the unofficial name of Microsoft's monthly scheduled release of security fixes for the Windows operating system ...

  • parameter tampering

    Parameter tampering is a type of web-based cyber attack in which certain parameters in a URL are changed without a user's ...

SearchCIO
  • e-business (electronic business)

    E-business (electronic business) is the conduct of business processes on the internet.

  • business resilience

    Business resilience is the ability an organization has to quickly adapt to disruptions while maintaining continuous business ...

  • chief procurement officer (CPO)

    The chief procurement officer, or CPO, leads an organization's procurement department and oversees the acquisitions of goods and ...

SearchHRSoftware
SearchCustomerExperience
  • first call resolution (FCR)

    First call resolution (FCR) is when customer service agents properly address a customer's needs the first time they call.

  • customer intelligence (CI)

    Customer intelligence (CI) is the process of collecting and analyzing detailed customer data from internal and external sources ...

  • clickstream data (clickstream analytics)

    Clickstream data and clickstream analytics are the processes involved in collecting, analyzing and reporting aggregate data about...

Close