Welcome to the MapR Administrator Guide! This guide is for system administrators tasked with managing MapR clusters. Topics include how to manage data by using volumes; how to monitor the cluster for performance; how to manage users and groups; how to add and remove nodes from the cluster; and more.
The focus of the Administrator Guide is managing the nodes and services that make up a cluster. The Administrator Guide does not cover the details of installing MapR software on a cluster. See Advanced Installation Topics for details on planning and installing a MapR cluster.
Click on one of the sub-sections below to get started.
- Managing Users and Groups
- Managing Licenses
- Managing the Cluster
- Managing Roles and Services
- Adding Roles to a Node
- Removing Roles from a Node
- Assigning Roles to Nodes for Best Performance
- Isolating CLDB Nodes
- Isolating ZooKeeper Nodes
- Task Nodes
- TaskTracker Blacklisting
- Setting Up MapR NFS
- High Availability Planning
- Starting, Stopping, and Restarting Services
- Central Configuration
- Changing the User for MapR Services
- Dial Home
- Managing Nodes
- Managing Disks
- Shutting Down a Cluster
- Starting Up a Cluster
- Managing Roles and Services
- Managing Data with Volumes
- Monitoring the Cluster
- Cluster Resource Allocation
- Managing the MapReduce Mode
- Managing Jobs and Applications
- Maintenance Schedule
- YARN Cgroups
- JobTracker High Availability
- NodeManager Restart
- ResourceManager High Availability
- Performance Tuning
- MapR-FS Performance Tuning
- MapReduce v1 Performance Tuning
- Balance the Load Across the Cluster
- Enable Inline Setup
- Prevent Data Spills
- Use Compression
- Customize Memory Settings for MapReduce v1
- Tune the Map Phase For MapReduce v1
- Tune the Reduce Phase For MapReduce v1
- Summary of Basic Guidelines For Nodes Running MapReduce v1 Jobs
- Examples: Nodes Running MapReduce v1 Jobs
- Troubleshooting Cluster Administration