MapR 5.1 is at End of Life (EOL) and no longer supported. Please see the latest documentation. This documentation is not being updated.

5.1 Reference
This section provides information about development content including MapR-FS and MapReduce development topics and reference content.
- Development Guide
- Reference Guide
  - MapR Control System
  - Hadoop Commands
  - HBase Shell for MapR-DB
    You can manage MapR-DB tables using HBase shell commands and additional HBase shell commands included in the MapR distribution of Hadoop.
  - YARN commands
  - maprcli and REST API Syntax
  - Alarms Reference
  - Utilities
  - Default MapR Configurations
  - Configuration Files
  - MapR Environment
  - MapR Parameters
  - Best Practices
  - Language Support for MapR-DB Tables
  - Glossary
    This section contains defintions for commonly used terms in MapR Converged Data Platform environments.
  - Source Code for MapR Software
- Glossary
  This section contains defintions for commonly used terms in MapR Converged Data Platform environments.

Machine Performance Pane

The Machine Performance pane displays the following information about the node's performance and resource usage since it last reported to the CLDB:

Memory Used - the amount of memory in use on the node
Disk Used - the amount of disk space used on the node
CPU - The number of CPUs and the percentage of CPU used on the node
Network I/O - the input and output to the node per second
RPC I/O - the number of RPC calls on the node and the amount of RPC input and output
Disk I/O - the amount of data read to and written from the disk
# Operations - the number of disk reads and writes