Package | Description |
---|---|
org.apache.hadoop.conf |
Configuration of system parameters.
|
org.apache.hadoop.crypto.key |
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.
|
org.apache.hadoop.fs |
An abstract file system API.
|
org.apache.hadoop.fs.ftp | |
org.apache.hadoop.fs.http |
Filesystem implementations that allow Hadoop to read directly from
HTTP / HTTPS endpoints.
|
org.apache.hadoop.fs.sftp |
SFTP FileSystem package.
|
org.apache.hadoop.fs.shell | |
org.apache.hadoop.fs.viewfs | |
org.apache.hadoop.ha | |
org.apache.hadoop.io.erasurecode.coder |
Erasure coders framework.
|
org.apache.hadoop.io.serializer |
This package provides a mechanism for using different serialization frameworks
in Hadoop.
|
org.apache.hadoop.io.serializer.avro |
This package provides Avro serialization in Hadoop.
|
org.apache.hadoop.security | |
org.apache.hadoop.security.alias | |
org.apache.hadoop.security.token | |
org.apache.hadoop.tools | |
org.apache.hadoop.util |
Common utilities.
|
Modifier and Type | Class and Description |
---|---|
class |
ReconfigurableBase
Utility base class for implementing the Reconfigurable interface.
|
Modifier and Type | Class and Description |
---|---|
class |
KeyShell
This program is the CLI utility for the KeyProvider facilities in Hadoop.
|
Modifier and Type | Class and Description |
---|---|
class |
ChecksumFileSystem
Abstract Checksumed FileSystem.
|
class |
FileSystem
An abstract base class for a fairly generic filesystem.
|
class |
FilterFileSystem
A
FilterFileSystem contains
some other file system, which it uses as
its basic file system, possibly transforming
the data along the way or providing additional
functionality. |
protected class |
FsShell.Help
Displays short usage of commands sans the long description
|
protected class |
FsShell.Usage
Display help for commands with their short usage and long description.
|
class |
org.apache.hadoop.fs.FsShellPermissions
This class is the home for file permissions related commands.
|
static class |
FsShellPermissions.Chgrp
Used to change group of files
|
static class |
FsShellPermissions.Chmod
The pattern is almost as flexible as mode allowed by chmod shell command.
|
static class |
FsShellPermissions.Chown
Used to change owner and/or group of files
|
class |
HarFileSystem
This is an implementation of the Hadoop Archive
Filesystem.
|
class |
LocalFileSystem
Implement the FileSystem API for the checksumed local filesystem.
|
class |
RawLocalFileSystem
Implement the FileSystem API for the raw local filesystem.
|
class |
Trash
Provides a trash facility which supports pluggable Trash policies.
|
class |
TrashPolicy
This interface is used for implementing different Trash policies.
|
Modifier and Type | Class and Description |
---|---|
class |
FTPFileSystem
A
FileSystem backed by an FTP client provided by Apache Commons Net. |
Modifier and Type | Class and Description |
---|---|
class |
HttpFileSystem
A Filesystem that reads from HTTP endpoint.
|
class |
HttpsFileSystem
A Filesystem that reads from HTTPS endpoint.
|
Modifier and Type | Class and Description |
---|---|
class |
SFTPFileSystem
SFTP FileSystem.
|
Modifier and Type | Class and Description |
---|---|
class |
org.apache.hadoop.fs.shell.Command
An abstract class for the execution of a file system command
|
class |
org.apache.hadoop.fs.shell.FsCommand
Base class for all "hadoop fs" commands.
|
class |
org.apache.hadoop.fs.shell.TouchCommands
Unix touch like commands
|
static class |
TouchCommands.Touch
A UNIX like touch command.
|
static class |
TouchCommands.Touchz
(Re)create zero-length file at the specified path.
|
Modifier and Type | Class and Description |
---|---|
class |
ViewFileSystem
ViewFileSystem (extends the FileSystem interface) implements a client-side
mount table.
|
Modifier and Type | Class and Description |
---|---|
class |
PowerShellFencer
Fencer method that uses PowerShell to remotely connect to a machine and kill
the required process.
|
class |
ShellCommandFencer
Fencing method that runs a shell command.
|
class |
SshFenceByTcpPort
This fencing implementation sshes to the target node and uses
fuser to kill the process listening on the service's
TCP port. |
Modifier and Type | Class and Description |
---|---|
class |
DummyErasureDecoder
Dummy erasure decoder does no real computation.
|
class |
DummyErasureEncoder
Dummy erasure encoder does no real computation.
|
class |
org.apache.hadoop.io.erasurecode.coder.ErasureDecoder
An abstract erasure decoder that's to be inherited by new decoders.
|
class |
org.apache.hadoop.io.erasurecode.coder.ErasureEncoder
An abstract erasure encoder that's to be inherited by new encoders.
|
Modifier and Type | Class and Description |
---|---|
class |
WritableSerialization
A
Serialization for Writable s that delegates to
Writable.write(java.io.DataOutput) and
Writable.readFields(java.io.DataInput) . |
Modifier and Type | Class and Description |
---|---|
class |
AvroReflectSerialization
Serialization for Avro Reflect classes.
|
class |
AvroSerialization<T>
Base class for providing serialization to Avro types.
|
class |
AvroSpecificSerialization
Serialization for Avro Specific classes.
|
Modifier and Type | Class and Description |
---|---|
class |
KDiag
Kerberos diagnostics
This operation expands some of the diagnostic output of the security code,
but not all.
|
Modifier and Type | Class and Description |
---|---|
class |
CredentialShell
This program is the CLI utility for the CredentialProvider facilities in
Hadoop.
|
Modifier and Type | Class and Description |
---|---|
class |
DtUtilShell
DtUtilShell is a set of command line token file management operations.
|
Modifier and Type | Class and Description |
---|---|
class |
CommandShell
This program is a CLI utility base class utilizing hadoop Tool class.
|
class |
GetGroupsBase
Base class for the HDFS and MR implementations of tools which fetch and
display the groups that users belong to.
|
Modifier and Type | Class and Description |
---|---|
class |
FindClass
This entry point exists for diagnosing classloader problems:
is a class or resource present -and if so, where?
Actions
|
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