Package | Description |
---|---|
org.apache.hadoop.conf |
Configuration of system parameters.
|
org.apache.hadoop.fs |
An abstract file system API.
|
org.apache.hadoop.fs.ftp | |
org.apache.hadoop.fs.s3 |
A distributed, block-based implementation of
FileSystem that uses Amazon S3
as a backing store. |
org.apache.hadoop.fs.s3native |
A distributed implementation of
FileSystem for reading and writing files on
Amazon S3. |
org.apache.hadoop.fs.shell | |
org.apache.hadoop.fs.viewfs | |
org.apache.hadoop.ha | |
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.tools |
Modifier and Type | Class and Description |
---|---|
class |
ReconfigurableBase
Utility base class for implementing the Reconfigurable interface.
|
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 |
MigrationTool
This class is a tool for migrating data from an older to a newer version
of an S3 filesystem.
|
class |
S3FileSystem
A block-based
FileSystem backed by
Amazon S3. |
Modifier and Type | Class and Description |
---|---|
class |
NativeS3FileSystem
A
FileSystem for reading and writing files stored on
Amazon S3. |
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
|
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 |
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 |
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 |
GetGroupsBase
Base class for the HDFS and MR implementations of tools which fetch and
display the groups that users belong to.
|
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