Apache Ambari Operations
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Chapter 1. Ambari Operations: Overview

Hadoop is a large-scale, distributed data storage and processing infrastructure using clusters of commodity hosts networked together. Monitoring and managing such complex distributed systems is not simple. To help you manage the complexity, Apache Ambari collects a wide range of information from the cluster's nodes and services and presents it to you in an easy-to-use, centralized interface: Ambari Web.

Ambari Web displays information such as service-specific summaries, graphs, and alerts. You use Ambari Web to create and manage your HDP cluster and to perform basic operational tasks, such as starting and stopping services, adding hosts to your cluster, and updating service configurations. You also can use Ambari Web to perform administrative tasks for your cluster, such as enabling Kerberos security and performing Stack upgrades. Any user can view Ambari Web features. Users with administrator-level roles can access more options that operator-level or view-only users can. For example, an Ambari administrator can manage cluster security, an operator user can monitor the cluster, but a view-only user can only access features to which an administrator grants required permissions.

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