Ambari

• Ambari is a tool to manage and visualize a hadoop cluster

• Ambari can also be used to install the other hadoop components. First installing ambari and then from it the hadoop cluster

• Usernames

• Reset the admin password with ambari-admin-password-reset (via shell root:hadoop)
• You can also use the default maria_dev:maria_dev user

Dashboard

• Ambari dashboard http://localhost:8080/
• Overviews about services and important metrics

Services

• Allows configuring an individual hadoop component

Hosts

• Machines that compose the hadoop cluster
• Namenodes and Datanodes

Alerts

• Email you when something goes wrong
• E.g., HDFS storage capacity

Admin

• Check installed services
• Service accounts
• Authentication methods

Views

http://localhost:8080/#/main/views

• Files View

• Interactively explore the HDFS

• Hive View

• Movielens 100k dataset: https://grouplens.org/datasets/movielens/

• Import it using Hive View at upload table tab

• Pig View

• Run pig scripts