This section provides information about development content including MapR-FS and MapReduce development topics and reference content.
The hadoop archive command creates a Hadoop archive, a file that contains other files. A Hadoop archive always has a *.har extension.
hadoop archive
*.har
The hadoop classpath command prints the class path needed to access the Hadoop jar and the required libraries.
hadoop classpath
The hadoop daemonlog command gets and sets the log level for each daemon.
hadoop daemonlog
The hadoop jar command runs a program contained in a JAR file. Users can bundle their MapReduce code in a JAR file and execute it using this command.
hadoop jar
The hadoop job command enables you to manage MapReduce jobs.
hadoop job
The hadoop mfs command performs operations on directories in the cluster.
hadoop mfs
The hadoop mradmin command runs Map-Reduce administrative commands.
hadoop mradmin
The hadoop queue command displays job queue information.
hadoop queue
The hadoop version command prints the hadoop software version.
hadoop version
The hadoop conf command outputs the configuration information for this node to standard output.
hadoop conf
You can manage MapR-DB tables using HBase shell commands and additional HBase shell commands included in the MapR distribution of Hadoop.
This section contains defintions for commonly used terms in MapR Converged Data Platform environments.
This section contains the following: