Package org.apache.hadoop.util

Common utilities.

See:
Description

Interface Summary

Progressable	An interface for callbacks when an method makes some progress.
Tool	A tool interface that support generic options handling

Class Summary

CopyFiles	A Map-reduce program to recursively copy directories between different file-systems.
CopyFiles.CopyFilesMapper	Base-class for all mappers for distcp
CopyFiles.FSCopyFilesMapper	DFSCopyFilesMapper: The mapper for copying files from the DFS.
CopyFiles.HTTPCopyFilesMapper
Daemon	A thread that has called Thread.setDaemon(boolean) with true.
DiskChecker	Class that provides utility functions for checking disk problem
HostsFileReader
MergeSort	An implementation of the core algorithm of MergeSort.
NativeCodeLoader	A helper to load the native hadoop code i.e.
PlatformName	A helper class for getting build-info of the java-vm.
PrintJarMainClass	A micro-application that prints the main class name out of a jar file.
PriorityQueue	A PriorityQueue maintains a partial ordering of its elements such that the least element can always be found in constant time.
ProgramDriver	A driver that is used to run programs added to it
Progress	Utility to assist with generation of progress reports.
ReflectionUtils	General reflection utils
RunJar	Run a Hadoop job jar.
StringUtils	General string utils
ToolBase	This is a base class to support generic commonad options.
VersionInfo	This class finds the package info for Hadoop and the HadoopVersionAnnotation information.
XMLUtils	General xml utilities.

Exception Summary

DiskChecker.DiskErrorException
DiskChecker.DiskOutOfSpaceException

Package org.apache.hadoop.util Description

Common utilities.