A B C D E F G H I J K L M N O P R S T U V W

A

ArrayFile - class org.apache.hadoop.io.ArrayFile.
A dense file-based mapping from integers to values.
ArrayFile() - Constructor for class org.apache.hadoop.io.ArrayFile
 
ArrayFile.Reader - class org.apache.hadoop.io.ArrayFile.Reader.
Provide access to an existing array file.
ArrayFile.Reader(FileSystem, String, Configuration) - Constructor for class org.apache.hadoop.io.ArrayFile.Reader
Construct an array reader for the named file.
ArrayFile.Writer - class org.apache.hadoop.io.ArrayFile.Writer.
Write a new array file.
ArrayFile.Writer(FileSystem, String, Class) - Constructor for class org.apache.hadoop.io.ArrayFile.Writer
Create the named file for values of the named class.
ArrayWritable - class org.apache.hadoop.io.ArrayWritable.
A Writable for arrays containing instances of a class.
ArrayWritable() - Constructor for class org.apache.hadoop.io.ArrayWritable
 
ArrayWritable(Class) - Constructor for class org.apache.hadoop.io.ArrayWritable
 
ArrayWritable(Class, Writable[]) - Constructor for class org.apache.hadoop.io.ArrayWritable
 
ArrayWritable(String[]) - Constructor for class org.apache.hadoop.io.ArrayWritable
 
abandonBlock(Block, String) - Method in class org.apache.hadoop.dfs.NameNode
The client needs to give up on the block.
abandonFileInProgress(String) - Method in class org.apache.hadoop.dfs.NameNode
 
addBlock(String, String) - Method in class org.apache.hadoop.dfs.NameNode
 
addDefaultResource(String) - Method in class org.apache.hadoop.conf.Configuration
Add a default resource.
addDefaultResource(File) - Method in class org.apache.hadoop.conf.Configuration
Add a default resource.
addFinalResource(String) - Method in class org.apache.hadoop.conf.Configuration
Add a final resource.
addFinalResource(File) - Method in class org.apache.hadoop.conf.Configuration
Add a final resource.
addInputDir(File) - Method in class org.apache.hadoop.mapred.JobConf
 
addMissing(String, long) - Method in class org.apache.hadoop.dfs.DFSck.Result
Add a missing block name, plus its size.
addName(Class, String) - Static method in class org.apache.hadoop.io.WritableName
Add an alternate name for a class.
addPhase(String) - Method in class org.apache.hadoop.util.Progress
Adds a named node to the tree.
addPhase() - Method in class org.apache.hadoop.util.Progress
Adds a node to the tree.
append(Writable) - Method in class org.apache.hadoop.io.ArrayFile.Writer
Append a value to the file.
append(WritableComparable, Writable) - Method in class org.apache.hadoop.io.MapFile.Writer
Append a key/value pair to the map.
append(Writable, Writable) - Method in class org.apache.hadoop.io.SequenceFile.Writer
Append a key/value pair.
append(byte[], int, int, int) - Method in class org.apache.hadoop.io.SequenceFile.Writer
Append a key/value pair.
append(WritableComparable) - Method in class org.apache.hadoop.io.SetFile.Writer
Append a key to a set.

B

BooleanWritable - class org.apache.hadoop.io.BooleanWritable.
A WritableComparable for booleans.
BooleanWritable() - Constructor for class org.apache.hadoop.io.BooleanWritable
 
BooleanWritable(boolean) - Constructor for class org.apache.hadoop.io.BooleanWritable
 
BooleanWritable.Comparator - class org.apache.hadoop.io.BooleanWritable.Comparator.
A Comparator optimized for BooleanWritable.
BooleanWritable.Comparator() - Constructor for class org.apache.hadoop.io.BooleanWritable.Comparator
 
BytesWritable - class org.apache.hadoop.io.BytesWritable.
A byte sequence that is usable as a key or value.
BytesWritable() - Constructor for class org.apache.hadoop.io.BytesWritable
Create a zero-size sequence.
BytesWritable(byte[]) - Constructor for class org.apache.hadoop.io.BytesWritable
Create a BytesWritable using the byte array as the initial value.
BytesWritable.Comparator - class org.apache.hadoop.io.BytesWritable.Comparator.
A Comparator optimized for BytesWritable.
BytesWritable.Comparator() - Constructor for class org.apache.hadoop.io.BytesWritable.Comparator
 
blockReceived(String, Block[]) - Method in class org.apache.hadoop.dfs.NameNode
 
blockReport(String, Block[]) - Method in class org.apache.hadoop.dfs.NameNode
 

C

CHECKSUM_VERSION - Static variable in class org.apache.hadoop.fs.FSDataOutputStream
 
ChecksumException - exception org.apache.hadoop.fs.ChecksumException.
Thrown for checksum errors.
ChecksumException(String) - Constructor for class org.apache.hadoop.fs.ChecksumException
 
Client - class org.apache.hadoop.ipc.Client.
A client for an IPC service.
Client(Class, Configuration) - Constructor for class org.apache.hadoop.ipc.Client
Construct an IPC client whose values are of the given Writable class.
Closeable - interface org.apache.hadoop.io.Closeable.
That which can be closed.
ClusterStatus - class org.apache.hadoop.mapred.ClusterStatus.
Summarizes the size and current state of the cluster.
CompressedWritable - class org.apache.hadoop.io.CompressedWritable.
A base-class for Writables which store themselves compressed and lazily inflate on field access.
CompressedWritable() - Constructor for class org.apache.hadoop.io.CompressedWritable
 
Configurable - interface org.apache.hadoop.conf.Configurable.
Something that may be configured with a Configuration.
Configuration - class org.apache.hadoop.conf.Configuration.
Provides access to configuration parameters.
Configuration() - Constructor for class org.apache.hadoop.conf.Configuration
A new configuration.
Configuration(Configuration) - Constructor for class org.apache.hadoop.conf.Configuration
A new configuration with the same settings cloned from another.
Configured - class org.apache.hadoop.conf.Configured.
Base class for things that may be configured with a Configuration.
Configured(Configuration) - Constructor for class org.apache.hadoop.conf.Configured
Construct a Configured.
call(Writable, InetSocketAddress) - Method in class org.apache.hadoop.ipc.Client
Make a call, passing param, to the IPC server running at address, returning the value.
call(Writable[], InetSocketAddress[]) - Method in class org.apache.hadoop.ipc.Client
Makes a set of calls in parallel.
call(Writable) - Method in class org.apache.hadoop.ipc.RPC.Server
 
call(Method, Object[][], InetSocketAddress[], Configuration) - Static method in class org.apache.hadoop.ipc.RPC
Expert: Make multiple, parallel calls to a set of servers.
call(Writable) - Method in class org.apache.hadoop.ipc.Server
Called for each call.
checkOutputSpecs(FileSystem, JobConf) - Method in interface org.apache.hadoop.mapred.OutputFormat
Check whether the output specification for a job is appropriate.
checkOutputSpecs(FileSystem, JobConf) - Method in class org.apache.hadoop.mapred.OutputFormatBase
 
clone(Writable, JobConf) - Static method in class org.apache.hadoop.io.WritableUtils
Make a copy of a writable object using serialization to a buffer.
close() - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
close() - Method in class org.apache.hadoop.fs.FileSystem
No more filesystem operations are needed.
close() - Method in class org.apache.hadoop.fs.LocalFileSystem
 
close() - Method in interface org.apache.hadoop.io.Closeable
Called after the last call to any other method on this object to free and/or flush resources.
close() - Method in class org.apache.hadoop.io.MapFile.Reader
Close the map.
close() - Method in class org.apache.hadoop.io.MapFile.Writer
Close the map.
close() - Method in class org.apache.hadoop.io.SequenceFile.Reader
Close the file.
close() - Method in class org.apache.hadoop.io.SequenceFile.Writer
Close the file.
close() - Method in class org.apache.hadoop.mapred.JobClient
 
close() - Method in class org.apache.hadoop.mapred.MapReduceBase
Default implementation that does nothing.
close() - Method in interface org.apache.hadoop.mapred.RecordReader
Close this to future operations.
close(Reporter) - Method in interface org.apache.hadoop.mapred.RecordWriter
Close this to future operations.
close() - Method in class org.apache.hadoop.mapred.SequenceFileRecordReader
 
close() - Method in class org.apache.hadoop.mapred.TaskTracker
Close down the TaskTracker and all its components.
collect(WritableComparable, Writable) - Method in interface org.apache.hadoop.mapred.OutputCollector
Adds a key/value pair to the output.
compare(byte[], int, int, byte[], int, int) - Method in class org.apache.hadoop.io.BooleanWritable.Comparator
 
compare(byte[], int, int, byte[], int, int) - Method in class org.apache.hadoop.io.BytesWritable.Comparator
Compare the buffers in serialized form.
compare(byte[], int, int, byte[], int, int) - Method in class org.apache.hadoop.io.FloatWritable.Comparator
 
compare(byte[], int, int, byte[], int, int) - Method in class org.apache.hadoop.io.IntWritable.Comparator
 
compare(byte[], int, int, byte[], int, int) - Method in class org.apache.hadoop.io.LongWritable.Comparator
 
compare(WritableComparable, WritableComparable) - Method in class org.apache.hadoop.io.LongWritable.DecreasingComparator
 
compare(byte[], int, int, byte[], int, int) - Method in class org.apache.hadoop.io.LongWritable.DecreasingComparator
 
compare(byte[], int, int, byte[], int, int) - Method in class org.apache.hadoop.io.MD5Hash.Comparator
 
compare(byte[], int, int, byte[], int, int) - Method in class org.apache.hadoop.io.UTF8.Comparator
 
compare(byte[], int, int, byte[], int, int) - Method in class org.apache.hadoop.io.WritableComparator
Optimization hook.
compare(WritableComparable, WritableComparable) - Method in class org.apache.hadoop.io.WritableComparator
Compare two WritableComparables.
compare(Object, Object) - Method in class org.apache.hadoop.io.WritableComparator
 
compareBytes(byte[], int, int, byte[], int, int) - Static method in class org.apache.hadoop.io.WritableComparator
Lexicographic order of binary data.
compareTo(Object) - Method in class org.apache.hadoop.io.BooleanWritable
 
compareTo(Object) - Method in class org.apache.hadoop.io.BytesWritable
Define the sort order of the BytesWritable.
compareTo(Object) - Method in class org.apache.hadoop.io.FloatWritable
Compares two FloatWritables.
compareTo(Object) - Method in class org.apache.hadoop.io.IntWritable
Compares two IntWritables.
compareTo(Object) - Method in class org.apache.hadoop.io.LongWritable
Compares two LongWritables.
compareTo(Object) - Method in class org.apache.hadoop.io.MD5Hash
Compares this object with the specified object for order.
compareTo(Object) - Method in class org.apache.hadoop.io.UTF8
Compare two UTF8s.
complete(String, String) - Method in class org.apache.hadoop.dfs.NameNode
 
complete() - Method in class org.apache.hadoop.util.Progress
Completes this node, moving the parent node to its next child.
completeLocalInput(File) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
We're done with the local stuff, so delete it
completeLocalInput(File) - Method in class org.apache.hadoop.fs.FileSystem
Called when we're all done writing to the target.
completeLocalInput(File) - Method in class org.apache.hadoop.fs.LocalFileSystem
 
completeLocalOutput(File, File) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
Move completed local data to DFS destination
completeLocalOutput(File, File) - Method in class org.apache.hadoop.fs.FileSystem
Called when we're all done writing to the target.
completeLocalOutput(File, File) - Method in class org.apache.hadoop.fs.LocalFileSystem
 
completedJobs() - Method in class org.apache.hadoop.mapred.JobTracker
 
configure(JobConf) - Method in interface org.apache.hadoop.mapred.JobConfigurable
Initializes a new instance from a JobConf.
configure(JobConf) - Method in class org.apache.hadoop.mapred.MapReduceBase
Default implementation that does nothing.
configure(JobConf) - Method in class org.apache.hadoop.mapred.MapRunner
 
configure(JobConf) - Method in class org.apache.hadoop.mapred.lib.HashPartitioner
 
configure(JobConf) - Method in class org.apache.hadoop.mapred.lib.RegexMapper
 
copy(String, String, Configuration) - Method in class org.apache.hadoop.dfs.DFSShell
Copy an DFS file
copyContents(FileSystem, File, File, boolean, Configuration) - Static method in class org.apache.hadoop.fs.FileUtil
Copy a file's contents to a new location.
copyFromLocalFile(File, File) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
copyFromLocalFile(File, File) - Method in class org.apache.hadoop.fs.FileSystem
The src file is on the local disk.
copyFromLocalFile(File, File) - Method in class org.apache.hadoop.fs.LocalFileSystem
 
copyToLocalFile(File, File) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
copyToLocalFile(File, File) - Method in class org.apache.hadoop.fs.FileSystem
The src file is under FS2, and the dst is on the local disk.
copyToLocalFile(File, File) - Method in class org.apache.hadoop.fs.LocalFileSystem
 
create(String, String, String, boolean) - Method in class org.apache.hadoop.dfs.NameNode
 
create(File) - Method in class org.apache.hadoop.fs.FileSystem
Opens an FSDataOutputStream at the indicated File.
create(File, boolean, int) - Method in class org.apache.hadoop.fs.FileSystem
Opens an FSDataOutputStream at the indicated File.
createNewFile(File) - Method in class org.apache.hadoop.fs.FileSystem
Creates the given File as a brand-new zero-length file.
createRaw(File, boolean) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
createRaw(File, boolean) - Method in class org.apache.hadoop.fs.FileSystem
Opens an OutputStream at the indicated File.
createRaw(File, boolean) - Method in class org.apache.hadoop.fs.LocalFileSystem
 
createSocketAddr(String) - Static method in class org.apache.hadoop.dfs.DataNode
Util method to build socket addr from string

D

DATA_FILE_NAME - Static variable in class org.apache.hadoop.io.MapFile
The name of the data file.
DF - class org.apache.hadoop.fs.DF.
Filesystem disk space usage statistics.
DF(String, Configuration) - Constructor for class org.apache.hadoop.fs.DF
 
DF(String, long) - Constructor for class org.apache.hadoop.fs.DF
 
DFSShell - class org.apache.hadoop.dfs.DFSShell.
This class provides some DFS administrative access.
DFSShell(FileSystem) - Constructor for class org.apache.hadoop.dfs.DFSShell
 
DFSck - class org.apache.hadoop.dfs.DFSck.
This class provides rudimentary checking of DFS volumes for errors and sub-optimal conditions.
DFSck(Configuration, int, boolean, boolean, boolean) - Constructor for class org.apache.hadoop.dfs.DFSck
Filesystem checker.
DFSck.Result - class org.apache.hadoop.dfs.DFSck.Result.
Result of checking, plus overall DFS statistics.
DFSck.Result() - Constructor for class org.apache.hadoop.dfs.DFSck.Result
 
DF_INTERVAL_DEFAULT - Static variable in class org.apache.hadoop.fs.DF
 
Daemon - class org.apache.hadoop.util.Daemon.
A thread that has called Thread.setDaemon(boolean) with true.
Daemon() - Constructor for class org.apache.hadoop.util.Daemon
Construct a daemon thread.
Daemon(Runnable) - Constructor for class org.apache.hadoop.util.Daemon
Construct a daemon thread.
DataInputBuffer - class org.apache.hadoop.io.DataInputBuffer.
A reusable DataInput implementation that reads from an in-memory buffer.
DataInputBuffer() - Constructor for class org.apache.hadoop.io.DataInputBuffer
Constructs a new empty buffer.
DataNode - class org.apache.hadoop.dfs.DataNode.
DataNode is a class (and program) that stores a set of blocks for a DFS deployment.
DataNode(Configuration, String) - Constructor for class org.apache.hadoop.dfs.DataNode
Create the DataNode given a configuration and a dataDir.
DataNode(String, File, InetSocketAddress, Configuration) - Constructor for class org.apache.hadoop.dfs.DataNode
A DataNode can also be created with configuration information explicitly given.
DataNodeReport - class org.apache.hadoop.dfs.DataNodeReport.
A report on the status of a DataNode.
DataNodeReport() - Constructor for class org.apache.hadoop.dfs.DataNodeReport
 
DataOutputBuffer - class org.apache.hadoop.io.DataOutputBuffer.
A reusable DataOutput implementation that writes to an in-memory buffer.
DataOutputBuffer() - Constructor for class org.apache.hadoop.io.DataOutputBuffer
Constructs a new empty buffer.
DistributedFileSystem - class org.apache.hadoop.dfs.DistributedFileSystem.
Implementation of the abstract FileSystem for the DFS system.
DistributedFileSystem(InetSocketAddress, Configuration) - Constructor for class org.apache.hadoop.dfs.DistributedFileSystem
Construct a client for the filesystem at namenode.
define(Class, WritableComparator) - Static method in class org.apache.hadoop.io.WritableComparator
Register an optimized comparator for a WritableComparable implementation.
delete(String) - Method in class org.apache.hadoop.dfs.DFSShell
Delete an DFS file
delete(String) - Method in class org.apache.hadoop.dfs.NameNode
 
delete(File) - Method in class org.apache.hadoop.fs.FileSystem
Deletes File
delete(FileSystem, String) - Static method in class org.apache.hadoop.io.MapFile
Deletes the named map file.
deleteLocalFiles() - Method in class org.apache.hadoop.mapred.JobConf
 
deleteLocalFiles(String) - Method in class org.apache.hadoop.mapred.JobConf
 
deleteRaw(File) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
Get rid of File f, whether a true file or dir.
deleteRaw(File) - Method in class org.apache.hadoop.fs.FileSystem
Deletes File
deleteRaw(File) - Method in class org.apache.hadoop.fs.LocalFileSystem
 
digest(byte[]) - Static method in class org.apache.hadoop.io.MD5Hash
Construct a hash value for a byte array.
digest(byte[], int, int) - Static method in class org.apache.hadoop.io.MD5Hash
Construct a hash value for a byte array.
digest(String) - Static method in class org.apache.hadoop.io.MD5Hash
Construct a hash value for a String.
digest(UTF8) - Static method in class org.apache.hadoop.io.MD5Hash
Construct a hash value for a String.
displayByteArray(byte[]) - Static method in class org.apache.hadoop.io.WritableUtils
 
done(String) - Method in class org.apache.hadoop.mapred.TaskTracker
The task is done.
du(String) - Method in class org.apache.hadoop.dfs.DFSShell
 

E

ExampleDriver - class org.apache.hadoop.examples.ExampleDriver.
 
ExampleDriver() - Constructor for class org.apache.hadoop.examples.ExampleDriver
 
emitHeartbeat(TaskTrackerStatus, boolean) - Method in class org.apache.hadoop.mapred.JobTracker
Process incoming heartbeat messages from the task trackers.
ensureInflated() - Method in class org.apache.hadoop.io.CompressedWritable
Must be called by all methods which access fields to ensure that the data has been uncompressed.
equals(Object) - Method in class org.apache.hadoop.io.BooleanWritable
 
equals(Object) - Method in class org.apache.hadoop.io.BytesWritable
Are the two byte sequences equal?
equals(Object) - Method in class org.apache.hadoop.io.FloatWritable
Returns true iff o is a FloatWritable with the same value.
equals(Object) - Method in class org.apache.hadoop.io.IntWritable
Returns true iff o is a IntWritable with the same value.
equals(Object) - Method in class org.apache.hadoop.io.LongWritable
Returns true iff o is a LongWritable with the same value.
equals(Object) - Method in class org.apache.hadoop.io.MD5Hash
Returns true iff o is an MD5Hash whose digest contains the same values.
equals(Object) - Method in class org.apache.hadoop.io.UTF8
Returns true iff o is a UTF8 with the same contents.
errorReport(String, String) - Method in class org.apache.hadoop.dfs.NameNode
 
exists(File) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
exists(String) - Method in class org.apache.hadoop.dfs.NameNode
 
exists(File) - Method in class org.apache.hadoop.fs.FileSystem
Check if exists
exists(File) - Method in class org.apache.hadoop.fs.LocalFileSystem
 

F

FIXING_DELETE - Static variable in class org.apache.hadoop.dfs.DFSck
Delete corrupted files.
FIXING_MOVE - Static variable in class org.apache.hadoop.dfs.DFSck
Move corrupted files to /lost+found .
FIXING_NONE - Static variable in class org.apache.hadoop.dfs.DFSck
Don't attempt any fixing .
FSDataInputStream - class org.apache.hadoop.fs.FSDataInputStream.
Utility that wraps a FSInputStream in a DataInputStream and buffers input through a BufferedInputStream.
FSDataInputStream(FileSystem, File, int, Configuration) - Constructor for class org.apache.hadoop.fs.FSDataInputStream
 
FSDataInputStream(FileSystem, File, Configuration) - Constructor for class org.apache.hadoop.fs.FSDataInputStream
 
FSDataInputStream(FSInputStream, Configuration) - Constructor for class org.apache.hadoop.fs.FSDataInputStream
Construct without checksums.
FSDataInputStream(FSInputStream, int) - Constructor for class org.apache.hadoop.fs.FSDataInputStream
Construct without checksums.
FSDataOutputStream - class org.apache.hadoop.fs.FSDataOutputStream.
Utility that wraps a FSOutputStream in a DataOutputStream, buffers output through a BufferedOutputStream and creates a checksum file.
FSDataOutputStream(FileSystem, File, boolean, Configuration, int) - Constructor for class org.apache.hadoop.fs.FSDataOutputStream
 
FSError - error org.apache.hadoop.fs.FSError.
Thrown for unexpected filesystem errors, presumed to reflect disk errors in the native filesystem.
FSInputStream - class org.apache.hadoop.fs.FSInputStream.
FSInputStream is a generic old InputStream with a little bit of RAF-style seek ability.
FSInputStream() - Constructor for class org.apache.hadoop.fs.FSInputStream
 
FSOutputStream - class org.apache.hadoop.fs.FSOutputStream.
FSOutputStream is an OutputStream that can track its position.
FSOutputStream() - Constructor for class org.apache.hadoop.fs.FSOutputStream
 
FileSplit - class org.apache.hadoop.mapred.FileSplit.
A section of an input file.
FileSplit(File, long, long) - Constructor for class org.apache.hadoop.mapred.FileSplit
Constructs a split.
FileSystem - class org.apache.hadoop.fs.FileSystem.
An abstract base class for a fairly generic filesystem.
FileSystem(Configuration) - Constructor for class org.apache.hadoop.fs.FileSystem
 
FileUtil - class org.apache.hadoop.fs.FileUtil.
A collection of file-processing util methods
FileUtil() - Constructor for class org.apache.hadoop.fs.FileUtil
 
FloatWritable - class org.apache.hadoop.io.FloatWritable.
A WritableComparable for floats.
FloatWritable() - Constructor for class org.apache.hadoop.io.FloatWritable
 
FloatWritable(float) - Constructor for class org.apache.hadoop.io.FloatWritable
 
FloatWritable.Comparator - class org.apache.hadoop.io.FloatWritable.Comparator.
A Comparator optimized for FloatWritable.
FloatWritable.Comparator() - Constructor for class org.apache.hadoop.io.FloatWritable.Comparator
 
failedJobs() - Method in class org.apache.hadoop.mapred.JobTracker
 
finalKey(WritableComparable) - Method in class org.apache.hadoop.io.MapFile.Reader
Reads the final key from the file.
fix(FileSystem, File, Class, Class, boolean, Configuration) - Static method in class org.apache.hadoop.io.MapFile
This method attempts to fix a corrupt MapFile by re-creating its index.
format(Configuration) - Static method in class org.apache.hadoop.dfs.NameNode
Format a new filesystem.
format(LogRecord) - Method in class org.apache.hadoop.util.LogFormatter
Format the given LogRecord.
fsError(String) - Method in class org.apache.hadoop.mapred.TaskTracker
A child task had a local filesystem error.
fsck(String) - Method in class org.apache.hadoop.dfs.DFSck
Check files on DFS, starting from the indicated path.
fullyDelete(File, Configuration) - Static method in class org.apache.hadoop.fs.FileUtil
Delete a directory and all its contents.
fullyDelete(FileSystem, File) - Static method in class org.apache.hadoop.fs.FileUtil
 

G

Grep - class org.apache.hadoop.examples.Grep.
 
get(String, Object) - Method in class org.apache.hadoop.conf.Configuration
Returns the value of the name property.
get(String) - Method in class org.apache.hadoop.conf.Configuration
Returns the value of the name property, or null if no such property exists.
get(String, String) - Method in class org.apache.hadoop.conf.Configuration
Returns the value of the name property.
get(Configuration) - Static method in class org.apache.hadoop.fs.FileSystem
Returns the configured filesystem implementation.
get(long, Writable) - Method in class org.apache.hadoop.io.ArrayFile.Reader
Return the nth value in the file.
get() - Method in class org.apache.hadoop.io.ArrayWritable
 
get() - Method in class org.apache.hadoop.io.BooleanWritable
Returns the value of the BooleanWritable
get() - Method in class org.apache.hadoop.io.BytesWritable
Get the data from the BytesWritable.
get() - Method in class org.apache.hadoop.io.FloatWritable
Return the value of this FloatWritable.
get() - Method in class org.apache.hadoop.io.IntWritable
Return the value of this IntWritable.
get() - Method in class org.apache.hadoop.io.LongWritable
Return the value of this LongWritable.
get(WritableComparable, Writable) - Method in class org.apache.hadoop.io.MapFile.Reader
Return the value for the named key, or null if none exists.
get() - Static method in class org.apache.hadoop.io.NullWritable
Returns the single instance of this class.
get() - Method in class org.apache.hadoop.io.ObjectWritable
Return the instance, or null if none.
get(WritableComparable) - Method in class org.apache.hadoop.io.SetFile.Reader
Read the matching key from a set into key.
get() - Method in class org.apache.hadoop.io.TwoDArrayWritable
 
get(Class) - Static method in class org.apache.hadoop.io.WritableComparator
Get a comparator for a WritableComparable implementation.
get() - Static method in class org.apache.hadoop.ipc.Server
Returns the server instance called under or null.
get() - Method in class org.apache.hadoop.util.Progress
Returns the overall progress of the root.
getAddress(Configuration) - Static method in class org.apache.hadoop.mapred.JobTracker
 
getAvailable() - Method in class org.apache.hadoop.fs.DF
 
getBlockSize() - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
getBlockSize() - Method in class org.apache.hadoop.fs.FileSystem
Return the number of bytes that large input files should be optimally be split into to minimize i/o time.
getBlockSize() - Method in class org.apache.hadoop.fs.LocalFileSystem
 
getBlockwork(String, int) - Method in class org.apache.hadoop.dfs.NameNode
Return a block-oriented command for the datanode to execute.
getBoolean(String, boolean) - Method in class org.apache.hadoop.conf.Configuration
Returns the value of the name property as an boolean.
getBytes() - Method in class org.apache.hadoop.io.UTF8
The raw bytes.
getBytes(String) - Static method in class org.apache.hadoop.io.UTF8
Convert a string to a UTF-8 encoded byte array.
getCapacity() - Method in class org.apache.hadoop.dfs.DataNodeReport
The raw capacity.
getCapacity() - Method in class org.apache.hadoop.fs.DF
 
getCapacity() - Method in class org.apache.hadoop.io.BytesWritable
Get the capacity, which is the maximum size that could handled without resizing the backing storage.
getChecksumFile(File) - Static method in class org.apache.hadoop.fs.FileSystem
Return the name of the checksum file associated with a file.
getClass(String, Class) - Method in class org.apache.hadoop.conf.Configuration
Returns the value of the name property as a Class.
getClass(String, Class, Class) - Method in class org.apache.hadoop.conf.Configuration
Returns the value of the name property as a Class.
getClass(String) - Static method in class org.apache.hadoop.io.WritableName
Return the class for a name.
getClusterStatus() - Method in class org.apache.hadoop.mapred.JobClient
 
getClusterStatus() - Method in class org.apache.hadoop.mapred.JobTracker
 
getCombinerClass() - Method in class org.apache.hadoop.mapred.JobConf
 
getConf() - Method in interface org.apache.hadoop.conf.Configurable
Return the configuration used by this object.
getConf() - Method in class org.apache.hadoop.conf.Configured
 
getConf() - Method in class org.apache.hadoop.io.ObjectWritable
 
getConfResourceAsInputStream(String) - Method in class org.apache.hadoop.conf.Configuration
Returns an input stream attached to the configuration resource with the given name.
getConfResourceAsReader(String) - Method in class org.apache.hadoop.conf.Configuration
Returns a reader attached to the configuration resource with the given name.
getCorruptFiles() - Method in class org.apache.hadoop.dfs.DFSck.Result
Return the number of currupted files.
getData() - Method in class org.apache.hadoop.io.DataOutputBuffer
Returns the current contents of the buffer.
getDataNodeStats() - Method in class org.apache.hadoop.dfs.DistributedFileSystem
Return statistics for each datanode.
getDatanodeReport() - Method in class org.apache.hadoop.dfs.NameNode
 
getDeclaredClass() - Method in class org.apache.hadoop.io.ObjectWritable
Return the class this is meant to be.
getDiagnostics() - Method in class org.apache.hadoop.mapred.TaskReport
A list of error messages.
getDigest() - Method in class org.apache.hadoop.io.MD5Hash
Returns the digest bytes.
getDirPath() - Method in class org.apache.hadoop.fs.DF
 
getEntry(MapFile.Reader[], Partitioner, WritableComparable, Writable) - Static method in class org.apache.hadoop.mapred.MapFileOutputFormat
Get an entry from output generated by this class.
getFactor() - Method in class org.apache.hadoop.io.SequenceFile.Sorter
Get the number of streams to merge at once.
getFactory(Class) - Static method in class org.apache.hadoop.io.WritableFactories
Define a factory for a class.
getFile(String, String) - Method in class org.apache.hadoop.conf.Configuration
Returns a file name under a directory named in dirsProp with the given path.
getFile() - Method in class org.apache.hadoop.mapred.FileSplit
The file containing this split's data.
getFile(String, String, IntWritable) - Method in class org.apache.hadoop.mapred.TaskTracker
 
getFileCacheHints(File, long, long) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
getFileCacheHints(File, long, long) - Method in class org.apache.hadoop.fs.FileSystem
Return a 2D array of size 1x1 or greater, containing hostnames where portions of the given file can be found.
getFileCacheHints(File, long, long) - Method in class org.apache.hadoop.fs.LocalFileSystem
Return 1x1 'localhost' cell if the file exists.
getFilesystem() - Method in class org.apache.hadoop.fs.DF
 
getFilesystemName() - Method in class org.apache.hadoop.mapred.JobTracker
Grab the local fs name
getFloat(String, float) - Method in class org.apache.hadoop.conf.Configuration
Returns the value of the name property as a float.
getFs() - Method in class org.apache.hadoop.mapred.JobClient
Get a filesystem handle.
getHints(String, long, long) - Method in class org.apache.hadoop.dfs.NameNode
 
getHost() - Method in class org.apache.hadoop.dfs.DataNodeReport
The hostname of the datanode.
getIndexInterval() - Method in class org.apache.hadoop.io.MapFile.Writer
The number of entries that are added before an index entry is added.
getInfoPort() - Method in class org.apache.hadoop.mapred.JobTracker
 
getInputDirs() - Method in class org.apache.hadoop.mapred.JobConf
 
getInputFormat() - Method in class org.apache.hadoop.mapred.JobConf
 
getInputKeyClass() - Method in class org.apache.hadoop.mapred.JobConf
 
getInputValueClass() - Method in class org.apache.hadoop.mapred.JobConf
 
getInt(String, int) - Method in class org.apache.hadoop.conf.Configuration
Returns the value of the name property as an integer.
getJar() - Method in class org.apache.hadoop.mapred.JobConf
 
getJob(String) - Method in class org.apache.hadoop.mapred.JobClient
Get an RunningJob object to track an ongoing job.
getJob(String) - Method in class org.apache.hadoop.mapred.JobTracker
 
getJobClient() - Method in class org.apache.hadoop.mapred.TaskTracker
The connection to the JobTracker, used by the TaskRunner for locating remote files.
getJobFile() - Method in interface org.apache.hadoop.mapred.RunningJob
Returns the path of the submitted job.
getJobID() - Method in interface org.apache.hadoop.mapred.RunningJob
Returns an identifier for the job
getJobName() - Method in class org.apache.hadoop.mapred.JobConf
Get the user-specified job name.
getJobProfile(String) - Method in class org.apache.hadoop.mapred.JobTracker
 
getJobStatus(String) - Method in class org.apache.hadoop.mapred.JobTracker
 
getJobTrackerMachine() - Method in class org.apache.hadoop.mapred.JobTracker
 
getKeyClass() - Method in class org.apache.hadoop.io.MapFile.Reader
Returns the class of keys in this file.
getKeyClass() - Method in class org.apache.hadoop.io.SequenceFile.Reader
Returns the class of keys in this file.
getKeyClass() - Method in class org.apache.hadoop.io.SequenceFile.Writer
Returns the class of keys in this file.
getKeyClass() - Method in class org.apache.hadoop.io.WritableComparator
Returns the WritableComparable implementation class.
getKeyClass() - Method in class org.apache.hadoop.mapred.SequenceFileRecordReader
The class of key that must be passed to SequenceFileRecordReader.next(Writable,Writable)..
getLastUpdate() - Method in class org.apache.hadoop.dfs.DataNodeReport
The time when this information was accurate.
getLength(File) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
getLength(File) - Method in class org.apache.hadoop.fs.FileSystem
The number of bytes in a file.
getLength(File) - Method in class org.apache.hadoop.fs.LocalFileSystem
 
getLength() - Method in class org.apache.hadoop.io.DataInputBuffer
Returns the length of the input.
getLength() - Method in class org.apache.hadoop.io.DataOutputBuffer
Returns the length of the valid data currently in the buffer.
getLength() - Method in class org.apache.hadoop.io.SequenceFile.Writer
Returns the current length of the output file.
getLength() - Method in class org.apache.hadoop.io.UTF8
The number of bytes in the encoded string.
getLength() - Method in class org.apache.hadoop.mapred.FileSplit
The number of bytes in the file to process.
getListing(String) - Method in class org.apache.hadoop.dfs.NameNode
 
getLocalDirs() - Method in class org.apache.hadoop.mapred.JobConf
 
getLocalFile(String, String) - Method in class org.apache.hadoop.mapred.JobConf
Constructs a local file name.
getLogStream(Logger, Level) - Static method in class org.apache.hadoop.util.LogFormatter
Returns a stream that, when written to, adds log lines.
getLogger(String) - Static method in class org.apache.hadoop.util.LogFormatter
Gets a logger and, as a side effect, installs this as the default formatter.
getLong(String, long) - Method in class org.apache.hadoop.conf.Configuration
Returns the value of the name property as a long.
getMapRunnerClass() - Method in class org.apache.hadoop.mapred.JobConf
 
getMapTaskReports(String) - Method in class org.apache.hadoop.mapred.JobTracker
 
getMapTasks() - Method in class org.apache.hadoop.mapred.ClusterStatus
The number of currently running map tasks.
getMapperClass() - Method in class org.apache.hadoop.mapred.JobConf
 
getMaxTasks() - Method in class org.apache.hadoop.mapred.ClusterStatus
The maximum capacity for running tasks in the cluster.
getMemory() - Method in class org.apache.hadoop.io.SequenceFile.Sorter
Get the total amount of buffer memory, in bytes.
getMissingIds() - Method in class org.apache.hadoop.dfs.DFSck.Result
Return a list of missing block names (as list of Strings).
getMissingSize() - Method in class org.apache.hadoop.dfs.DFSck.Result
Return total size of missing data, in bytes.
getMount() - Method in class org.apache.hadoop.fs.DF
 
getName() - Method in class org.apache.hadoop.dfs.DataNodeReport
The name of the datanode.
getName() - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
getName() - Method in class org.apache.hadoop.fs.FileSystem
Returns a name for this filesystem, suitable to pass to FileSystem.getNamed(String,Configuration).
getName() - Method in class org.apache.hadoop.fs.LocalFileSystem
 
getName(Class) - Static method in class org.apache.hadoop.io.WritableName
Return the name for a class.
getNamed(String, Configuration) - Static method in class org.apache.hadoop.fs.FileSystem
Returns a named filesystem.
getNamenode() - Method in class org.apache.hadoop.dfs.DataNode
Return the namenode's identifier
getNumMapTasks() - Method in class org.apache.hadoop.mapred.JobConf
 
getNumReduceTasks() - Method in class org.apache.hadoop.mapred.JobConf
 
getObject(String) - Method in class org.apache.hadoop.conf.Configuration
Returns the value of the name property, or null if no such property exists.
getOutputDir() - Method in class org.apache.hadoop.mapred.JobConf
 
getOutputFormat() - Method in class org.apache.hadoop.mapred.JobConf
 
getOutputKeyClass() - Method in class org.apache.hadoop.mapred.JobConf
 
getOutputKeyComparator() - Method in class org.apache.hadoop.mapred.JobConf
 
getOutputValueClass() - Method in class org.apache.hadoop.mapred.JobConf
 
getOverReplicatedBlocks() - Method in class org.apache.hadoop.dfs.DFSck.Result
Return the number of over-replicsted blocks.
getPartition(WritableComparable, Writable, int) - Method in interface org.apache.hadoop.mapred.Partitioner
Returns the paritition number for a given entry given the total number of partitions.
getPartition(WritableComparable, Writable, int) - Method in class org.apache.hadoop.mapred.lib.HashPartitioner
Use Object.hashCode() to partition.
getPartitionerClass() - Method in class org.apache.hadoop.mapred.JobConf
 
getPercentUsed() - Method in class org.apache.hadoop.fs.DF
 
getPos() - Method in class org.apache.hadoop.fs.FSDataInputStream
 
getPos() - Method in class org.apache.hadoop.fs.FSDataOutputStream
 
getPos() - Method in class org.apache.hadoop.fs.FSInputStream
Return the current offset from the start of the file
getPos() - Method in class org.apache.hadoop.fs.FSOutputStream
Return the current offset from the start of the file
getPos() - Method in interface org.apache.hadoop.mapred.RecordReader
Returns the current position in the input.
getPos() - Method in class org.apache.hadoop.mapred.SequenceFileRecordReader
 
getPosition() - Method in class org.apache.hadoop.io.DataInputBuffer
Returns the current position in the input.
getPosition() - Method in class org.apache.hadoop.io.SequenceFile.Reader
Return the current byte position in the input file.
getProgress() - Method in class org.apache.hadoop.mapred.TaskReport
The amount completed, between zero and one.
getProxy(Class, InetSocketAddress, Configuration) - Static method in class org.apache.hadoop.ipc.RPC
Construct a client-side proxy object that implements the named protocol, talking to a server at the named address.
getRawCapacity() - Method in class org.apache.hadoop.dfs.DistributedFileSystem
Return the total raw capacity of the filesystem, disregarding replication .
getRawUsed() - Method in class org.apache.hadoop.dfs.DistributedFileSystem
Return the total raw used space in the filesystem, disregarding replication .
getReaders(FileSystem, File, Configuration) - Static method in class org.apache.hadoop.mapred.MapFileOutputFormat
Open the output generated by this format.
getReaders(Configuration, File) - Static method in class org.apache.hadoop.mapred.SequenceFileOutputFormat
Open the output generated by this format.
getRecordReader(FileSystem, FileSplit, JobConf, Reporter) - Method in interface org.apache.hadoop.mapred.InputFormat
Construct a RecordReader for a FileSplit.
getRecordReader(FileSystem, FileSplit, JobConf, Reporter) - Method in class org.apache.hadoop.mapred.InputFormatBase
 
getRecordReader(FileSystem, FileSplit, JobConf, Reporter) - Method in class org.apache.hadoop.mapred.SequenceFileInputFormat
 
getRecordReader(FileSystem, FileSplit, JobConf, Reporter) - Method in class org.apache.hadoop.mapred.TextInputFormat
 
getRecordWriter(FileSystem, JobConf, String) - Method in class org.apache.hadoop.mapred.MapFileOutputFormat
 
getRecordWriter(FileSystem, JobConf, String) - Method in interface org.apache.hadoop.mapred.OutputFormat
Construct a RecordWriter.
getRecordWriter(FileSystem, JobConf, String) - Method in class org.apache.hadoop.mapred.OutputFormatBase
 
getRecordWriter(FileSystem, JobConf, String) - Method in class org.apache.hadoop.mapred.SequenceFileOutputFormat
 
getRecordWriter(FileSystem, JobConf, String) - Method in class org.apache.hadoop.mapred.TextOutputFormat
 
getReduceTaskReports(String) - Method in class org.apache.hadoop.mapred.JobTracker
 
getReduceTasks() - Method in class org.apache.hadoop.mapred.ClusterStatus
The number of current running reduce tasks.
getReducerClass() - Method in class org.apache.hadoop.mapred.JobConf
 
getRemaining() - Method in class org.apache.hadoop.dfs.DataNodeReport
The raw free space.
getReplication() - Method in class org.apache.hadoop.dfs.DFSck.Result
Return the intended replication factor, against which the over/under- replicated blocks are counted.
getReplicationFactor() - Method in class org.apache.hadoop.dfs.DFSck.Result
Return the actual replication factor.
getResource(String) - Method in class org.apache.hadoop.conf.Configuration
Returns the URL for the named resource.
getRunnable() - Method in class org.apache.hadoop.util.Daemon
 
getServer(Object, int, Configuration) - Static method in class org.apache.hadoop.ipc.RPC
Construct a server for a protocol implementation instance listening on a port.
getServer(Object, int, int, boolean, Configuration) - Static method in class org.apache.hadoop.ipc.RPC
Construct a server for a protocol implementation instance listening on a port.
getSize() - Method in class org.apache.hadoop.io.BytesWritable
Get the current size of the buffer.
getSpeculativeExecution() - Method in class org.apache.hadoop.mapred.JobConf
Should speculative execution be used for this job?
getSplits(FileSystem, JobConf, int) - Method in interface org.apache.hadoop.mapred.InputFormat
Splits a set of input files.
getSplits(FileSystem, JobConf, int) - Method in class org.apache.hadoop.mapred.InputFormatBase
Splits files returned by {#listFiles(FileSystem,JobConf) when they're too big.
getStart() - Method in class org.apache.hadoop.mapred.FileSplit
The position of the first byte in the file to process.
getStartTime() - Method in class org.apache.hadoop.mapred.JobTracker
 
getState() - Method in class org.apache.hadoop.mapred.TaskReport
The most recent state, reported by a Reporter.
getStats() - Method in class org.apache.hadoop.dfs.NameNode
 
getStrings(String) - Method in class org.apache.hadoop.conf.Configuration
Returns the value of the name property as an array of strings.
getSystemDir() - Method in class org.apache.hadoop.mapred.JobConf
 
getTask(String) - Method in class org.apache.hadoop.mapred.TaskTracker
Called upon startup by the child process, to fetch Task data.
getTaskId() - Method in class org.apache.hadoop.mapred.TaskReport
The id of the task.
getTaskTracker(String) - Method in class org.apache.hadoop.mapred.JobTracker
 
getTaskTrackers() - Method in class org.apache.hadoop.mapred.ClusterStatus
The number of task trackers in the cluster.
getTotalBlocks() - Method in class org.apache.hadoop.dfs.DFSck.Result
Return the total number of blocks in the scanned area.
getTotalDirs() - Method in class org.apache.hadoop.dfs.DFSck.Result
Return total number of directories encountered during this scan.
getTotalFiles() - Method in class org.apache.hadoop.dfs.DFSck.Result
Return total number of files encountered during this scan.
getTotalSize() - Method in class org.apache.hadoop.dfs.DFSck.Result
Return total size of scanned data, in bytes.
getTotalSubmissions() - Method in class org.apache.hadoop.mapred.JobTracker
 
getTracker() - Static method in class org.apache.hadoop.mapred.JobTracker
 
getTrackerPort() - Method in class org.apache.hadoop.mapred.JobTracker
 
getTrackingURL() - Method in interface org.apache.hadoop.mapred.RunningJob
Returns a URL where some job progress information will be displayed.
getUnderReplicatedBlocks() - Method in class org.apache.hadoop.dfs.DFSck.Result
Return the number of under-replicated blocks.
getUsed() - Method in class org.apache.hadoop.dfs.DistributedFileSystem
Return the total size of all files in the filesystem.
getUsed() - Method in class org.apache.hadoop.fs.DF
 
getUser() - Method in class org.apache.hadoop.mapred.JobConf
Get the reported username for this job.
getValueClass() - Method in class org.apache.hadoop.io.ArrayWritable
 
getValueClass() - Method in class org.apache.hadoop.io.MapFile.Reader
Returns the class of values in this file.
getValueClass() - Method in class org.apache.hadoop.io.SequenceFile.Reader
Returns the class of values in this file.
getValueClass() - Method in class org.apache.hadoop.io.SequenceFile.Writer
Returns the class of values in this file.
getValueClass() - Method in class org.apache.hadoop.mapred.SequenceFileRecordReader
The class of value that must be passed to SequenceFileRecordReader.next(Writable,Writable)..
getVersion() - Method in class org.apache.hadoop.io.VersionedWritable
Return the version number of the current implementation.
getWorkingDirectory() - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
getWorkingDirectory() - Method in class org.apache.hadoop.fs.FileSystem
Get the current working directory for the given file system
getWorkingDirectory() - Method in class org.apache.hadoop.fs.LocalFileSystem
 
getWorkingDirectory() - Method in class org.apache.hadoop.mapred.JobConf
Get the current working directory for the default file system.

H

HashPartitioner - class org.apache.hadoop.mapred.lib.HashPartitioner.
Partition keys by their Object.hashCode().
HashPartitioner() - Constructor for class org.apache.hadoop.mapred.lib.HashPartitioner
 
halfDigest() - Method in class org.apache.hadoop.io.MD5Hash
Construct a half-sized version of this MD5.
handle(String, String, HttpRequest, HttpResponse) - Method in class org.apache.hadoop.mapred.JobTrackerInfoServer.RedirectHandler
 
hasLoggedSevere() - Static method in class org.apache.hadoop.util.LogFormatter
Returns true if this LogFormatter has logged something at Level.SEVERE
hashBytes(byte[], int) - Static method in class org.apache.hadoop.io.WritableComparator
Compute hash for binary data.
hashCode() - Method in class org.apache.hadoop.io.BooleanWritable
 
hashCode() - Method in class org.apache.hadoop.io.BytesWritable
 
hashCode() - Method in class org.apache.hadoop.io.FloatWritable
 
hashCode() - Method in class org.apache.hadoop.io.IntWritable
 
hashCode() - Method in class org.apache.hadoop.io.LongWritable
 
hashCode() - Method in class org.apache.hadoop.io.MD5Hash
Returns a hash code value for this object.
hashCode() - Method in class org.apache.hadoop.io.UTF8
 

I

INDEX_FILE_NAME - Static variable in class org.apache.hadoop.io.MapFile
The name of the index file.
IdentityMapper - class org.apache.hadoop.mapred.lib.IdentityMapper.
Implements the identity function, mapping inputs directly to outputs.
IdentityMapper() - Constructor for class org.apache.hadoop.mapred.lib.IdentityMapper
 
IdentityReducer - class org.apache.hadoop.mapred.lib.IdentityReducer.
Performs no reduction, writing all input values directly to the output.
IdentityReducer() - Constructor for class org.apache.hadoop.mapred.lib.IdentityReducer
 
InputFormat - interface org.apache.hadoop.mapred.InputFormat.
An input data format.
InputFormatBase - class org.apache.hadoop.mapred.InputFormatBase.
A base class for InputFormat.
InputFormatBase() - Constructor for class org.apache.hadoop.mapred.InputFormatBase
 
IntWritable - class org.apache.hadoop.io.IntWritable.
A WritableComparable for ints.
IntWritable() - Constructor for class org.apache.hadoop.io.IntWritable
 
IntWritable(int) - Constructor for class org.apache.hadoop.io.IntWritable
 
IntWritable.Comparator - class org.apache.hadoop.io.IntWritable.Comparator.
A Comparator optimized for IntWritable.
IntWritable.Comparator() - Constructor for class org.apache.hadoop.io.IntWritable.Comparator
 
InverseMapper - class org.apache.hadoop.mapred.lib.InverseMapper.
A Mapper that swaps keys and values.
InverseMapper() - Constructor for class org.apache.hadoop.mapred.lib.InverseMapper
 
initialize(String) - Method in class org.apache.hadoop.mapred.JobTracker
 
isAbsolute(File) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
isAbsolute(File) - Method in class org.apache.hadoop.fs.FileSystem
True iff the named path is absolute.
isAbsolute(File) - Method in class org.apache.hadoop.fs.LocalFileSystem
 
isChecksumFile(File) - Static method in class org.apache.hadoop.fs.FileSystem
Return true iff file is a checksum file name.
isComplete() - Method in interface org.apache.hadoop.mapred.RunningJob
Non-blocking function to check whether the job is finished or not.
isCompressed() - Method in class org.apache.hadoop.io.SequenceFile.Reader
Returns true if values are compressed.
isDir(String) - Method in class org.apache.hadoop.dfs.NameNode
 
isDirectory(File) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
isDirectory(File) - Method in class org.apache.hadoop.fs.FileSystem
True iff the named path is a directory.
isDirectory(File) - Method in class org.apache.hadoop.fs.LocalFileSystem
 
isFile(File) - Method in class org.apache.hadoop.fs.FileSystem
True iff the named path is a regular file.
isHealthy() - Method in class org.apache.hadoop.dfs.DFSck.Result
DFS is considered healthy if there are no missing blocks.
isSuccessful() - Method in interface org.apache.hadoop.mapred.RunningJob
True iff job completed successfully.

J

JobClient - class org.apache.hadoop.mapred.JobClient.
JobClient interacts with the JobTracker network interface.
JobClient(Configuration) - Constructor for class org.apache.hadoop.mapred.JobClient
Build a job client, connect to the default job tracker
JobClient(InetSocketAddress, Configuration) - Constructor for class org.apache.hadoop.mapred.JobClient
Build a job client, connect to the indicated job tracker.
JobConf - class org.apache.hadoop.mapred.JobConf.
A map/reduce job configuration.
JobConf() - Constructor for class org.apache.hadoop.mapred.JobConf
 
JobConf(Configuration) - Constructor for class org.apache.hadoop.mapred.JobConf
Construct a map/reduce job configuration.
JobConf(Configuration, Class) - Constructor for class org.apache.hadoop.mapred.JobConf
Construct a map/reduce job configuration.
JobConf(String) - Constructor for class org.apache.hadoop.mapred.JobConf
Construct a map/reduce configuration.
JobConf(File) - Constructor for class org.apache.hadoop.mapred.JobConf
Construct a map/reduce configuration.
JobConfigurable - interface org.apache.hadoop.mapred.JobConfigurable.
That what may be configured.
JobTracker - class org.apache.hadoop.mapred.JobTracker.
JobTracker is the central location for submitting and tracking MR jobs in a network environment.
JobTrackerInfoServer.RedirectHandler - class org.apache.hadoop.mapred.JobTrackerInfoServer.RedirectHandler.
 
JobTrackerInfoServer.RedirectHandler() - Constructor for class org.apache.hadoop.mapred.JobTrackerInfoServer.RedirectHandler
 
join() - Method in class org.apache.hadoop.dfs.NameNode
Wait for service to finish.
join() - Method in class org.apache.hadoop.ipc.Server
Wait for the server to be stopped.

K

key() - Method in class org.apache.hadoop.io.ArrayFile.Reader
Returns the key associated with the most recent call to ArrayFile.Reader.seek(long), ArrayFile.Reader.next(Writable), or ArrayFile.Reader.get(long,Writable).
killJob(String) - Method in class org.apache.hadoop.mapred.JobTracker
 
killJob() - Method in interface org.apache.hadoop.mapred.RunningJob
Kill the running job.

L

LOG - Static variable in class org.apache.hadoop.dfs.DataNode
 
LOG - Static variable in class org.apache.hadoop.dfs.NameNode
 
LOG - Static variable in class org.apache.hadoop.fs.FileSystem
 
LOG - Static variable in class org.apache.hadoop.io.SequenceFile
 
LOG - Static variable in class org.apache.hadoop.ipc.Client
 
LOG - Static variable in class org.apache.hadoop.ipc.Server
 
LOG - Static variable in class org.apache.hadoop.mapred.InputFormatBase
 
LOG - Static variable in class org.apache.hadoop.mapred.JobTracker
 
LOG - Static variable in class org.apache.hadoop.mapred.TaskTracker
 
LocalFileSystem - class org.apache.hadoop.fs.LocalFileSystem.
Implement the FileSystem API for the native filesystem.
LocalFileSystem(Configuration) - Constructor for class org.apache.hadoop.fs.LocalFileSystem
Construct a local filesystem client.
LogFormatter - class org.apache.hadoop.util.LogFormatter.
Prints just the date and the log message.
LogFormatter() - Constructor for class org.apache.hadoop.util.LogFormatter
 
LongSumReducer - class org.apache.hadoop.mapred.lib.LongSumReducer.
A Reducer that sums long values.
LongSumReducer() - Constructor for class org.apache.hadoop.mapred.lib.LongSumReducer
 
LongWritable - class org.apache.hadoop.io.LongWritable.
A WritableComparable for longs.
LongWritable() - Constructor for class org.apache.hadoop.io.LongWritable
 
LongWritable(long) - Constructor for class org.apache.hadoop.io.LongWritable
 
LongWritable.Comparator - class org.apache.hadoop.io.LongWritable.Comparator.
A Comparator optimized for LongWritable.
LongWritable.Comparator() - Constructor for class org.apache.hadoop.io.LongWritable.Comparator
 
LongWritable.DecreasingComparator - class org.apache.hadoop.io.LongWritable.DecreasingComparator.
A decreasing Comparator optimized for LongWritable.
LongWritable.DecreasingComparator() - Constructor for class org.apache.hadoop.io.LongWritable.DecreasingComparator
 
listFiles(File) - Method in class org.apache.hadoop.fs.FileSystem
List files in a directory.
listFiles(File, FileFilter) - Method in class org.apache.hadoop.fs.FileSystem
Filter files in a directory.
listFiles(FileSystem, JobConf) - Method in class org.apache.hadoop.mapred.InputFormatBase
List input directories.
listFiles(FileSystem, JobConf) - Method in class org.apache.hadoop.mapred.SequenceFileInputFormat
 
listFilesRaw(File) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
listFilesRaw(File) - Method in class org.apache.hadoop.fs.FileSystem
List files in a directory.
listFilesRaw(File) - Method in class org.apache.hadoop.fs.LocalFileSystem
 
locateMapOutputs(String, String[][]) - Method in class org.apache.hadoop.mapred.JobTracker
A TaskTracker wants to know the physical locations of completed, but not yet closed, tasks.
lock(File, boolean) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
lock(File, boolean) - Method in class org.apache.hadoop.fs.FileSystem
Obtain a lock on the given File
lock(File, boolean) - Method in class org.apache.hadoop.fs.LocalFileSystem
 
ls(String, boolean) - Method in class org.apache.hadoop.dfs.DFSShell
Get a listing of all files in DFS at the indicated name

M

MD5Hash - class org.apache.hadoop.io.MD5Hash.
A Writable for MD5 hash values.
MD5Hash() - Constructor for class org.apache.hadoop.io.MD5Hash
Constructs an MD5Hash.
MD5Hash(String) - Constructor for class org.apache.hadoop.io.MD5Hash
Constructs an MD5Hash from a hex string.
MD5Hash(byte[]) - Constructor for class org.apache.hadoop.io.MD5Hash
Constructs an MD5Hash with a specified value.
MD5Hash.Comparator - class org.apache.hadoop.io.MD5Hash.Comparator.
A WritableComparator optimized for MD5Hash keys.
MD5Hash.Comparator() - Constructor for class org.apache.hadoop.io.MD5Hash.Comparator
 
MD5_LEN - Static variable in class org.apache.hadoop.io.MD5Hash
 
MapFile - class org.apache.hadoop.io.MapFile.
A file-based map from keys to values.
MapFile() - Constructor for class org.apache.hadoop.io.MapFile
 
MapFile.Reader - class org.apache.hadoop.io.MapFile.Reader.
Provide access to an existing map.
MapFile.Reader(FileSystem, String, Configuration) - Constructor for class org.apache.hadoop.io.MapFile.Reader
Construct a map reader for the named map.
MapFile.Reader(FileSystem, String, WritableComparator, Configuration) - Constructor for class org.apache.hadoop.io.MapFile.Reader
Construct a map reader for the named map using the named comparator.
MapFile.Writer - class org.apache.hadoop.io.MapFile.Writer.
Writes a new map.
MapFile.Writer(FileSystem, String, Class, Class) - Constructor for class org.apache.hadoop.io.MapFile.Writer
Create the named map for keys of the named class.
MapFile.Writer(FileSystem, String, Class, Class, boolean) - Constructor for class org.apache.hadoop.io.MapFile.Writer
Create the named map for keys of the named class.
MapFile.Writer(FileSystem, String, WritableComparator, Class) - Constructor for class org.apache.hadoop.io.MapFile.Writer
Create the named map using the named key comparator.
MapFile.Writer(FileSystem, String, WritableComparator, Class, boolean) - Constructor for class org.apache.hadoop.io.MapFile.Writer
Create the named map using the named key comparator.
MapFileOutputFormat - class org.apache.hadoop.mapred.MapFileOutputFormat.
An OutputFormat that writes MapFiles.
MapFileOutputFormat() - Constructor for class org.apache.hadoop.mapred.MapFileOutputFormat
 
MapOutputFile.ProgressReporter - interface org.apache.hadoop.mapred.MapOutputFile.ProgressReporter.
Permits reporting of file copy progress.
MapReduceBase - class org.apache.hadoop.mapred.MapReduceBase.
Base class for Mapper and Reducer implementations.
MapReduceBase() - Constructor for class org.apache.hadoop.mapred.MapReduceBase
 
MapRunnable - interface org.apache.hadoop.mapred.MapRunnable.
Expert: Permits greater control of map processing.
MapRunner - class org.apache.hadoop.mapred.MapRunner.
Default MapRunnable implementation.
MapRunner() - Constructor for class org.apache.hadoop.mapred.MapRunner
 
Mapper - interface org.apache.hadoop.mapred.Mapper.
Maps input key/value pairs to a set of intermediate key/value pairs.
main(String[]) - Static method in class org.apache.hadoop.conf.Configuration
For debugging.
main(String[]) - Static method in class org.apache.hadoop.dfs.DFSShell
main() has some simple utility methods
main(String[]) - Static method in class org.apache.hadoop.dfs.DFSck
 
main(String[]) - Static method in class org.apache.hadoop.dfs.DataNode
 
main(String[]) - Static method in class org.apache.hadoop.dfs.NameNode
 
main(String[]) - Static method in class org.apache.hadoop.examples.ExampleDriver
This is a driver for the example programs.
main(String[]) - Static method in class org.apache.hadoop.examples.Grep
 
main(String[]) - Static method in class org.apache.hadoop.examples.WordCount
The main driver for word count map/reduce program.
main(String[]) - Static method in class org.apache.hadoop.fs.DF
 
main(String[]) - Static method in class org.apache.hadoop.io.MapFile
 
main(String[]) - Static method in class org.apache.hadoop.mapred.JobClient
 
main(String[]) - Static method in class org.apache.hadoop.mapred.JobTracker
Start the JobTracker process.
main(String[]) - Static method in class org.apache.hadoop.mapred.TaskTracker.Child
 
main(String[]) - Static method in class org.apache.hadoop.mapred.TaskTracker
Start the TaskTracker, point toward the indicated JobTracker
main(String[]) - Static method in class org.apache.hadoop.util.PrintJarMainClass
 
map(WritableComparable, Writable, OutputCollector, Reporter) - Method in class org.apache.hadoop.examples.WordCount.MapClass
 
map(WritableComparable, Writable, OutputCollector, Reporter) - Method in interface org.apache.hadoop.mapred.Mapper
Maps a single input key/value pair into intermediate key/value pairs.
map(WritableComparable, Writable, OutputCollector, Reporter) - Method in class org.apache.hadoop.mapred.lib.IdentityMapper
The identify function.
map(WritableComparable, Writable, OutputCollector, Reporter) - Method in class org.apache.hadoop.mapred.lib.InverseMapper
The inverse function.
map(WritableComparable, Writable, OutputCollector, Reporter) - Method in class org.apache.hadoop.mapred.lib.RegexMapper
 
map(WritableComparable, Writable, OutputCollector, Reporter) - Method in class org.apache.hadoop.mapred.lib.TokenCountMapper
 
mapOutputLost(String) - Method in class org.apache.hadoop.mapred.TaskTracker
A completed map task's output has been lost.
mapProgress() - Method in interface org.apache.hadoop.mapred.RunningJob
Returns a float between 0.0 and 1.0, indicating progress on the map portion of the job.
merge(String[], String) - Method in class org.apache.hadoop.io.SequenceFile.Sorter
Merge the provided files.
mkdir(String) - Method in class org.apache.hadoop.dfs.DFSShell
Create the given dir
mkdirs(File) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
mkdirs(String) - Method in class org.apache.hadoop.dfs.NameNode
 
mkdirs(File) - Method in class org.apache.hadoop.fs.FileSystem
Make the given file and all non-existent parents into directories.
mkdirs(File) - Method in class org.apache.hadoop.fs.LocalFileSystem
 
moveFromLocalFile(File, File) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
moveFromLocalFile(File, File) - Method in class org.apache.hadoop.fs.FileSystem
The src file is on the local disk.
moveFromLocalFile(File, File) - Method in class org.apache.hadoop.fs.LocalFileSystem
 

N

NameNode - class org.apache.hadoop.dfs.NameNode.
NameNode serves as both directory namespace manager and "inode table" for the Hadoop DFS.
NameNode(Configuration) - Constructor for class org.apache.hadoop.dfs.NameNode
Create a NameNode at the default location
NameNode(File, int, Configuration) - Constructor for class org.apache.hadoop.dfs.NameNode
Create a NameNode at the specified location and start it.
NullWritable - class org.apache.hadoop.io.NullWritable.
Singleton Writable with no data.
newInstance(Class) - Static method in class org.apache.hadoop.io.WritableFactories
Create a new instance of a class with a defined factory.
newInstance() - Method in interface org.apache.hadoop.io.WritableFactory
Return a new instance.
newInstance(Class) - Method in class org.apache.hadoop.mapred.JobConf
 
newKey() - Method in class org.apache.hadoop.io.WritableComparator
Construct a new WritableComparable instance.
next(Writable) - Method in class org.apache.hadoop.io.ArrayFile.Reader
Read and return the next value in the file.
next(WritableComparable, Writable) - Method in class org.apache.hadoop.io.MapFile.Reader
Read the next key/value pair in the map into key and val.
next(Writable) - Method in class org.apache.hadoop.io.SequenceFile.Reader
Read the next key in the file into key, skipping its value.
next(Writable, Writable) - Method in class org.apache.hadoop.io.SequenceFile.Reader
Read the next key/value pair in the file into key and val.
next(DataOutputBuffer) - Method in class org.apache.hadoop.io.SequenceFile.Reader
Read the next key/value pair in the file into buffer.
next(WritableComparable) - Method in class org.apache.hadoop.io.SetFile.Reader
Read the next key in a set into key.
next(Writable, Writable) - Method in interface org.apache.hadoop.mapred.RecordReader
Reads the next key/value pair.
next(Writable, Writable) - Method in class org.apache.hadoop.mapred.SequenceFileRecordReader
 

O

ObjectWritable - class org.apache.hadoop.io.ObjectWritable.
A polymorphic Writable that writes an instance with it's class name.
ObjectWritable() - Constructor for class org.apache.hadoop.io.ObjectWritable
 
ObjectWritable(Object) - Constructor for class org.apache.hadoop.io.ObjectWritable
 
ObjectWritable(Class, Object) - Constructor for class org.apache.hadoop.io.ObjectWritable
 
OutputCollector - interface org.apache.hadoop.mapred.OutputCollector.
Passed to Mapper and Reducer implementations to collect output data.
OutputFormat - interface org.apache.hadoop.mapred.OutputFormat.
An output data format.
OutputFormatBase - class org.apache.hadoop.mapred.OutputFormatBase.
A base class for OutputFormat.
OutputFormatBase() - Constructor for class org.apache.hadoop.mapred.OutputFormatBase
 
obtainLock(String, String, boolean) - Method in class org.apache.hadoop.dfs.NameNode
 
offerService() - Method in class org.apache.hadoop.dfs.DataNode
Main loop for the DataNode.
offerService() - Method in class org.apache.hadoop.mapred.JobTracker
Run forever
open(String) - Method in class org.apache.hadoop.dfs.NameNode
 
open(File, int) - Method in class org.apache.hadoop.fs.FileSystem
Opens an FSDataInputStream at the indicated File.
open(File) - Method in class org.apache.hadoop.fs.FileSystem
Opens an FSDataInputStream at the indicated File.
openRaw(File) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
openRaw(File) - Method in class org.apache.hadoop.fs.FileSystem
Opens an InputStream for the indicated File, whether local or via DFS.
openRaw(File) - Method in class org.apache.hadoop.fs.LocalFileSystem
 
org.apache.hadoop.conf - package org.apache.hadoop.conf
Configuration of system parameters.
org.apache.hadoop.dfs - package org.apache.hadoop.dfs
A distributed implementation of FileSystem.
org.apache.hadoop.examples - package org.apache.hadoop.examples
Hadoop example code.
org.apache.hadoop.fs - package org.apache.hadoop.fs
An abstract file system API.
org.apache.hadoop.io - package org.apache.hadoop.io
Generic i/o code for use when reading and writing data to the network, to databases, and to files.
org.apache.hadoop.ipc - package org.apache.hadoop.ipc
Tools to help define network clients and servers.
org.apache.hadoop.mapred - package org.apache.hadoop.mapred
A system for scalable, fault-tolerant, distributed computation over large data collections.
org.apache.hadoop.mapred.lib - package org.apache.hadoop.mapred.lib
Library of generally useful mappers, reducers, and partitioners.
org.apache.hadoop.util - package org.apache.hadoop.util
Common utilities.

P

Partitioner - interface org.apache.hadoop.mapred.Partitioner.
Partitions the key space.
PrintJarMainClass - class org.apache.hadoop.util.PrintJarMainClass.
A micro-application that prints the main class name out of a jar file.
PrintJarMainClass() - Constructor for class org.apache.hadoop.util.PrintJarMainClass
 
Progress - class org.apache.hadoop.util.Progress.
Utility to assist with generation of progress reports.
Progress() - Constructor for class org.apache.hadoop.util.Progress
Creates a new root node.
parseArgs(String[], int, Configuration) - Static method in class org.apache.hadoop.fs.FileSystem
Deprecated. use fs.default.name config option instead
phase() - Method in class org.apache.hadoop.util.Progress
Returns the current sub-node executing.
ping(String) - Method in class org.apache.hadoop.mapred.TaskTracker
Child checking to see if we're alive.
pollForNewTask(String) - Method in class org.apache.hadoop.mapred.JobTracker
A tracker wants to know if there's a Task to run.
pollForTaskWithClosedJob(String) - Method in class org.apache.hadoop.mapred.JobTracker
A tracker wants to know if any of its Tasks have been closed (because the job completed, whether successfully or not)
progress(float) - Method in interface org.apache.hadoop.mapred.MapOutputFile.ProgressReporter
 
progress(String, float, String) - Method in class org.apache.hadoop.mapred.TaskTracker
Called periodically to report Task progress, from 0.0 to 1.0.

R

RPC - class org.apache.hadoop.ipc.RPC.
A simple RPC mechanism.
RPC.Server - class org.apache.hadoop.ipc.RPC.Server.
An RPC Server.
RPC.Server(Object, Configuration, int) - Constructor for class org.apache.hadoop.ipc.RPC.Server
Construct an RPC server.
RPC.Server(Object, Configuration, int, int, boolean) - Constructor for class org.apache.hadoop.ipc.RPC.Server
Construct an RPC server.
RecordReader - interface org.apache.hadoop.mapred.RecordReader.
Reads key/value pairs from an input file FileSplit.
RecordWriter - interface org.apache.hadoop.mapred.RecordWriter.
Writes key/value pairs to an output file.
Reducer - interface org.apache.hadoop.mapred.Reducer.
Reduces a set of intermediate values which share a key to a smaller set of values.
RegexMapper - class org.apache.hadoop.mapred.lib.RegexMapper.
A Mapper that extracts text matching a regular expression.
RegexMapper() - Constructor for class org.apache.hadoop.mapred.lib.RegexMapper
 
Reporter - interface org.apache.hadoop.mapred.Reporter.
Passed to application code to permit alteration of status.
RunningJob - interface org.apache.hadoop.mapred.RunningJob.
Includes details on a running MapReduce job.
read(DataInput) - Static method in class org.apache.hadoop.io.MD5Hash
Constructs, reads and returns an instance.
readCompressedByteArray(DataInput) - Static method in class org.apache.hadoop.io.WritableUtils
 
readCompressedString(DataInput) - Static method in class org.apache.hadoop.io.WritableUtils
 
readCompressedStringArray(DataInput) - Static method in class org.apache.hadoop.io.WritableUtils
 
readFields(DataInput) - Method in class org.apache.hadoop.io.ArrayWritable
 
readFields(DataInput) - Method in class org.apache.hadoop.io.BooleanWritable
 
readFields(DataInput) - Method in class org.apache.hadoop.io.BytesWritable
 
readFields(DataInput) - Method in class org.apache.hadoop.io.CompressedWritable
 
readFields(DataInput) - Method in class org.apache.hadoop.io.FloatWritable
 
readFields(DataInput) - Method in class org.apache.hadoop.io.IntWritable
 
readFields(DataInput) - Method in class org.apache.hadoop.io.LongWritable
 
readFields(DataInput) - Method in class org.apache.hadoop.io.MD5Hash
 
readFields(DataInput) - Method in class org.apache.hadoop.io.NullWritable
 
readFields(DataInput) - Method in class org.apache.hadoop.io.ObjectWritable
 
readFields(DataInput) - Method in class org.apache.hadoop.io.TwoDArrayWritable
 
readFields(DataInput) - Method in class org.apache.hadoop.io.UTF8
 
readFields(DataInput) - Method in class org.apache.hadoop.io.VersionedWritable
 
readFields(DataInput) - Method in interface org.apache.hadoop.io.Writable
Reads the fields of this object from in.
readFields(DataInput) - Method in class org.apache.hadoop.mapred.ClusterStatus
 
readFields(DataInput) - Method in class org.apache.hadoop.mapred.FileSplit
 
readFields(DataInput) - Method in class org.apache.hadoop.mapred.TaskReport
 
readFieldsCompressed(DataInput) - Method in class org.apache.hadoop.io.CompressedWritable
Subclasses implement this instead of CompressedWritable.readFields(DataInput).
readFloat(byte[], int) - Static method in class org.apache.hadoop.io.WritableComparator
Parse a float from a byte array.
readInt(byte[], int) - Static method in class org.apache.hadoop.io.WritableComparator
Parse an integer from a byte array.
readLong(byte[], int) - Static method in class org.apache.hadoop.io.WritableComparator
Parse a long from a byte array.
readObject(DataInput, Configuration) - Static method in class org.apache.hadoop.io.ObjectWritable
Read a Writable, String, primitive type, or an array of the preceding.
readObject(DataInput, ObjectWritable, Configuration) - Static method in class org.apache.hadoop.io.ObjectWritable
Read a Writable, String, primitive type, or an array of the preceding.
readString(DataInput) - Static method in class org.apache.hadoop.io.UTF8
Read a UTF-8 encoded string.
readString(DataInput) - Static method in class org.apache.hadoop.io.WritableUtils
 
readStringArray(DataInput) - Static method in class org.apache.hadoop.io.WritableUtils
 
readUnsignedShort(byte[], int) - Static method in class org.apache.hadoop.io.WritableComparator
Parse an unsigned short from a byte array.
recursiveCopy(FileSystem, File, File, Configuration) - Static method in class org.apache.hadoop.fs.FileUtil
Copy a file and/or directory and all its contents (whether data or other files/dirs)
reduce(WritableComparable, Iterator, OutputCollector, Reporter) - Method in class org.apache.hadoop.examples.WordCount.Reduce
 
reduce(WritableComparable, Iterator, OutputCollector, Reporter) - Method in interface org.apache.hadoop.mapred.Reducer
Combines values for a given key.
reduce(WritableComparable, Iterator, OutputCollector, Reporter) - Method in class org.apache.hadoop.mapred.lib.IdentityReducer
Writes all keys and values directly to output.
reduce(WritableComparable, Iterator, OutputCollector, Reporter) - Method in class org.apache.hadoop.mapred.lib.LongSumReducer
 
reduceProgress() - Method in interface org.apache.hadoop.mapred.RunningJob
Returns a float between 0.0 and 1.0, indicating progress on the reduce portion of the job.
release(File) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
release(File) - Method in class org.apache.hadoop.fs.FileSystem
Release the lock
release(File) - Method in class org.apache.hadoop.fs.LocalFileSystem
 
releaseLock(String, String) - Method in class org.apache.hadoop.dfs.NameNode
 
rename(String, String) - Method in class org.apache.hadoop.dfs.DFSShell
Rename an DFS file
rename(String, String) - Method in class org.apache.hadoop.dfs.NameNode
 
rename(File, File) - Method in class org.apache.hadoop.fs.FileSystem
Renames File src to File dst.
rename(FileSystem, String, String) - Static method in class org.apache.hadoop.io.MapFile
Renames an existing map directory.
renameRaw(File, File) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
Rename files/dirs
renameRaw(File, File) - Method in class org.apache.hadoop.fs.FileSystem
Renames File src to File dst.
renameRaw(File, File) - Method in class org.apache.hadoop.fs.LocalFileSystem
 
renewLease(String) - Method in class org.apache.hadoop.dfs.NameNode
 
report() - Method in class org.apache.hadoop.dfs.DFSShell
Gives a report on how the FileSystem is doing
reportChecksumFailure(File, FSInputStream, long, long, int) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
reportChecksumFailure(File, FSInputStream, long, long, int) - Method in class org.apache.hadoop.fs.FileSystem
Report a checksum error to the file system.
reportChecksumFailure(File, FSInputStream, long, long, int) - Method in class org.apache.hadoop.fs.LocalFileSystem
Moves files to a bad file directory on the same device, so that their storage will not be reused.
reportDiagnosticInfo(String, String) - Method in class org.apache.hadoop.mapred.TaskTracker
Called when the task dies before completion, and we want to report back diagnostic info
reportWrittenBlock(LocatedBlock) - Method in class org.apache.hadoop.dfs.NameNode
The client can report in a set written blocks that it wrote.
reset(byte[], int) - Method in class org.apache.hadoop.io.DataInputBuffer
Resets the data that the buffer reads.
reset(byte[], int, int) - Method in class org.apache.hadoop.io.DataInputBuffer
Resets the data that the buffer reads.
reset() - Method in class org.apache.hadoop.io.DataOutputBuffer
Resets the buffer to empty.
reset() - Method in class org.apache.hadoop.io.MapFile.Reader
Re-positions the reader before its first key.
run() - Method in class org.apache.hadoop.dfs.DataNode
No matter what kind of exception we get, keep retrying to offerService().
run(Configuration) - Static method in class org.apache.hadoop.dfs.DataNode
Start datanode daemons.
run(RecordReader, OutputCollector, Reporter) - Method in interface org.apache.hadoop.mapred.MapRunnable
Called to execute mapping.
run(RecordReader, OutputCollector, Reporter) - Method in class org.apache.hadoop.mapred.MapRunner
 
run() - Method in class org.apache.hadoop.mapred.TaskTracker
The server retry loop.
runJob(JobConf) - Static method in class org.apache.hadoop.mapred.JobClient
Utility that submits a job, then polls for progress until the job is complete.
runningJobs() - Method in class org.apache.hadoop.mapred.JobTracker
 

S

SYNC_INTERVAL - Static variable in class org.apache.hadoop.io.SequenceFile
The number of bytes between sync points.
Seekable - interface org.apache.hadoop.fs.Seekable.
Stream that permits seeking.
SequenceFile - class org.apache.hadoop.io.SequenceFile.
Support for flat files of binary key/value pairs.
SequenceFile.Reader - class org.apache.hadoop.io.SequenceFile.Reader.
Writes key/value pairs from a sequence-format file.
SequenceFile.Reader(FileSystem, String, Configuration) - Constructor for class org.apache.hadoop.io.SequenceFile.Reader
Open the named file.
SequenceFile.Sorter - class org.apache.hadoop.io.SequenceFile.Sorter.
Sorts key/value pairs in a sequence-format file.
SequenceFile.Sorter(FileSystem, Class, Class, Configuration) - Constructor for class org.apache.hadoop.io.SequenceFile.Sorter
Sort and merge files containing the named classes.
SequenceFile.Sorter(FileSystem, WritableComparator, Class, Configuration) - Constructor for class org.apache.hadoop.io.SequenceFile.Sorter
Sort and merge using an arbitrary WritableComparator.
SequenceFile.Writer - class org.apache.hadoop.io.SequenceFile.Writer.
Write key/value pairs to a sequence-format file.
SequenceFile.Writer(FileSystem, String, Class, Class) - Constructor for class org.apache.hadoop.io.SequenceFile.Writer
Create the named file.
SequenceFile.Writer(FileSystem, String, Class, Class, boolean) - Constructor for class org.apache.hadoop.io.SequenceFile.Writer
Create the named file.
SequenceFileInputFormat - class org.apache.hadoop.mapred.SequenceFileInputFormat.
An InputFormat for SequenceFiles.
SequenceFileInputFormat() - Constructor for class org.apache.hadoop.mapred.SequenceFileInputFormat
 
SequenceFileOutputFormat - class org.apache.hadoop.mapred.SequenceFileOutputFormat.
An OutputFormat that writes SequenceFiles.
SequenceFileOutputFormat() - Constructor for class org.apache.hadoop.mapred.SequenceFileOutputFormat
 
SequenceFileRecordReader - class org.apache.hadoop.mapred.SequenceFileRecordReader.
An RecordReader for SequenceFiles.
SequenceFileRecordReader(Configuration, FileSplit) - Constructor for class org.apache.hadoop.mapred.SequenceFileRecordReader
 
Server - class org.apache.hadoop.ipc.Server.
An abstract IPC service.
Server(int, Class, int, Configuration) - Constructor for class org.apache.hadoop.ipc.Server
Constructs a server listening on the named port.
SetFile - class org.apache.hadoop.io.SetFile.
A file-based set of keys.
SetFile() - Constructor for class org.apache.hadoop.io.SetFile
 
SetFile.Reader - class org.apache.hadoop.io.SetFile.Reader.
Provide access to an existing set file.
SetFile.Reader(FileSystem, String, Configuration) - Constructor for class org.apache.hadoop.io.SetFile.Reader
Construct a set reader for the named set.
SetFile.Reader(FileSystem, String, WritableComparator, Configuration) - Constructor for class org.apache.hadoop.io.SetFile.Reader
Construct a set reader for the named set using the named comparator.
SetFile.Writer - class org.apache.hadoop.io.SetFile.Writer.
Write a new set file.
SetFile.Writer(FileSystem, String, Class) - Constructor for class org.apache.hadoop.io.SetFile.Writer
Create the named set for keys of the named class.
SetFile.Writer(FileSystem, String, WritableComparator) - Constructor for class org.apache.hadoop.io.SetFile.Writer
Create the named set using the named key comparator.
seek(long) - Method in class org.apache.hadoop.fs.FSDataInputStream
 
seek(long) - Method in class org.apache.hadoop.fs.FSInputStream
Seek to the given offset from the start of the file.
seek(long) - Method in interface org.apache.hadoop.fs.Seekable
Seek to the given offset from the start of the file.
seek(long) - Method in class org.apache.hadoop.io.ArrayFile.Reader
Positions the reader before its nth value.
seek(WritableComparable) - Method in class org.apache.hadoop.io.MapFile.Reader
Positions the reader at the named key, or if none such exists, at the first entry after the named key.
seek(long) - Method in class org.apache.hadoop.io.SequenceFile.Reader
Set the current byte position in the input file.
seek(WritableComparable) - Method in class org.apache.hadoop.io.SetFile.Reader
 
sendHeartbeat(String, long, long) - Method in class org.apache.hadoop.dfs.NameNode
 
set(String, Object) - Method in class org.apache.hadoop.conf.Configuration
Sets the value of the name property.
set(Writable[]) - Method in class org.apache.hadoop.io.ArrayWritable
 
set(boolean) - Method in class org.apache.hadoop.io.BooleanWritable
Set the value of the BooleanWritable
set(float) - Method in class org.apache.hadoop.io.FloatWritable
Set the value of this FloatWritable.
set(int) - Method in class org.apache.hadoop.io.IntWritable
Set the value of this IntWritable.
set(long) - Method in class org.apache.hadoop.io.LongWritable
Set the value of this LongWritable.
set(MD5Hash) - Method in class org.apache.hadoop.io.MD5Hash
Copy the contents of another instance into this instance.
set(Object) - Method in class org.apache.hadoop.io.ObjectWritable
Reset the instance.
set(Writable[][]) - Method in class org.apache.hadoop.io.TwoDArrayWritable
 
set(String) - Method in class org.apache.hadoop.io.UTF8
Set to contain the contents of a string.
set(UTF8) - Method in class org.apache.hadoop.io.UTF8
Set to contain the contents of a string.
set(float) - Method in class org.apache.hadoop.util.Progress
Called during execution on a leaf node to set its progress.
setBoolean(String, boolean) - Method in class org.apache.hadoop.conf.Configuration
Sets the value of the name property to an integer.
setCapacity(int) - Method in class org.apache.hadoop.io.BytesWritable
Change the capacity of the backing storage.
setClass(String, Class, Class) - Method in class org.apache.hadoop.conf.Configuration
Sets the value of the name property to the name of a class.
setCombinerClass(Class) - Method in class org.apache.hadoop.mapred.JobConf
 
setConf(Configuration) - Method in interface org.apache.hadoop.conf.Configurable
Set the configuration to be used by this object.
setConf(Configuration) - Method in class org.apache.hadoop.conf.Configured
 
setConf(Configuration) - Method in class org.apache.hadoop.io.ObjectWritable
 
setCorruptFiles(long) - Method in class org.apache.hadoop.dfs.DFSck.Result
 
setDigest(String) - Method in class org.apache.hadoop.io.MD5Hash
Sets the digest value from a hex string.
setFactor(int) - Method in class org.apache.hadoop.io.SequenceFile.Sorter
Set the number of streams to merge at once.
setFactory(Class, WritableFactory) - Static method in class org.apache.hadoop.io.WritableFactories
Define a factory for a class.
setIndexInterval(int) - Method in class org.apache.hadoop.io.MapFile.Writer
Sets the index interval.
setInputDir(File) - Method in class org.apache.hadoop.mapred.JobConf
 
setInputFormat(Class) - Method in class org.apache.hadoop.mapred.JobConf
 
setInputKeyClass(Class) - Method in class org.apache.hadoop.mapred.JobConf
 
setInputValueClass(Class) - Method in class org.apache.hadoop.mapred.JobConf
 
setInt(String, int) - Method in class org.apache.hadoop.conf.Configuration
Sets the value of the name property to an integer.
setJar(String) - Method in class org.apache.hadoop.mapred.JobConf
 
setJobName(String) - Method in class org.apache.hadoop.mapred.JobConf
Set the user-specified job name.
setLong(String, long) - Method in class org.apache.hadoop.conf.Configuration
Sets the value of the name property to a long.
setMapRunnerClass(Class) - Method in class org.apache.hadoop.mapred.JobConf
 
setMapperClass(Class) - Method in class org.apache.hadoop.mapred.JobConf
 
setMemory(int) - Method in class org.apache.hadoop.io.SequenceFile.Sorter
Set the total amount of buffer memory, in bytes.
setMinSplitSize(long) - Method in class org.apache.hadoop.mapred.InputFormatBase
 
setMissingSize(long) - Method in class org.apache.hadoop.dfs.DFSck.Result
 
setName(Class, String) - Static method in class org.apache.hadoop.io.WritableName
Set the name that a class should be known as to something other than the class name.
setNumMapTasks(int) - Method in class org.apache.hadoop.mapred.JobConf
 
setNumReduceTasks(int) - Method in class org.apache.hadoop.mapred.JobConf
 
setObject(String, Object) - Method in class org.apache.hadoop.conf.Configuration
Sets the value of the name property.
setOutputDir(File) - Method in class org.apache.hadoop.mapred.JobConf
 
setOutputFormat(Class) - Method in class org.apache.hadoop.mapred.JobConf
 
setOutputKeyClass(Class) - Method in class org.apache.hadoop.mapred.JobConf
 
setOutputKeyComparatorClass(Class) - Method in class org.apache.hadoop.mapred.JobConf
 
setOutputValueClass(Class) - Method in class org.apache.hadoop.mapred.JobConf
 
setOverReplicatedBlocks(long) - Method in class org.apache.hadoop.dfs.DFSck.Result
 
setPartitionerClass(Class) - Method in class org.apache.hadoop.mapred.JobConf
 
setReducerClass(Class) - Method in class org.apache.hadoop.mapred.JobConf
 
setReplication(int) - Method in class org.apache.hadoop.dfs.DFSck.Result
 
setShowThreadIDs(boolean) - Static method in class org.apache.hadoop.util.LogFormatter
When set true, thread IDs are logged.
setSize(int) - Method in class org.apache.hadoop.io.BytesWritable
Change the size of the buffer.
setSpeculativeExecution(boolean) - Method in class org.apache.hadoop.mapred.JobConf
Turn on or off speculative execution for this job.
setStatus(String) - Method in interface org.apache.hadoop.mapred.Reporter
Alter the application's status description.
setStatus(String) - Method in class org.apache.hadoop.util.Progress
 
setTimeout(int) - Method in class org.apache.hadoop.ipc.Client
Sets the timeout used for network i/o.
setTimeout(int) - Method in class org.apache.hadoop.ipc.Server
Sets the timeout used for network i/o.
setTotalBlocks(long) - Method in class org.apache.hadoop.dfs.DFSck.Result
 
setTotalDirs(long) - Method in class org.apache.hadoop.dfs.DFSck.Result
 
setTotalFiles(long) - Method in class org.apache.hadoop.dfs.DFSck.Result
 
setTotalSize(long) - Method in class org.apache.hadoop.dfs.DFSck.Result
 
setUnderReplicatedBlocks(long) - Method in class org.apache.hadoop.dfs.DFSck.Result
 
setUser(String) - Method in class org.apache.hadoop.mapred.JobConf
Set the reported username for this job.
setValueClass(Class) - Method in class org.apache.hadoop.io.ArrayWritable
 
setWorkingDirectory(File) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
setWorkingDirectory(File) - Method in class org.apache.hadoop.fs.FileSystem
Set the current working directory for the given file system.
setWorkingDirectory(File) - Method in class org.apache.hadoop.fs.LocalFileSystem
Set the working directory to the given directory.
setWorkingDirectory(String) - Method in class org.apache.hadoop.mapred.JobConf
Set the current working directory for the default file system
showTime(boolean) - Static method in class org.apache.hadoop.util.LogFormatter
When true, time is logged with each entry.
skip(DataInput) - Static method in class org.apache.hadoop.io.UTF8
Skips over one UTF8 in the input.
skipCompressedByteArray(DataInput) - Static method in class org.apache.hadoop.io.WritableUtils
 
sort(String, String) - Method in class org.apache.hadoop.io.SequenceFile.Sorter
Perform a file sort.
start() - Method in class org.apache.hadoop.ipc.Server
Starts the service.
startLocalInput(File, File) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
Fetch remote DFS file, place at tmpLocalFile
startLocalInput(File, File) - Method in class org.apache.hadoop.fs.FileSystem
Returns a local File that the user can read from.
startLocalInput(File, File) - Method in class org.apache.hadoop.fs.LocalFileSystem
 
startLocalOutput(File, File) - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
startLocalOutput(File, File) - Method in class org.apache.hadoop.fs.FileSystem
Returns a local File that the user can write output to.
startLocalOutput(File, File) - Method in class org.apache.hadoop.fs.LocalFileSystem
 
startNextPhase() - Method in class org.apache.hadoop.util.Progress
Called during execution to move to the next phase at this level in the tree.
startTracker(Configuration) - Static method in class org.apache.hadoop.mapred.JobTracker
 
stop() - Method in class org.apache.hadoop.ipc.Client
Stop all threads related to this client.
stop() - Method in class org.apache.hadoop.ipc.Server
Stops the service.
submitJob(String) - Method in class org.apache.hadoop.mapred.JobClient
Submit a job to the MR system
submitJob(JobConf) - Method in class org.apache.hadoop.mapred.JobClient
Submit a job to the MR system
submitJob(String) - Method in class org.apache.hadoop.mapred.JobTracker
JobTracker.submitJob() kicks off a new job.
sync(long) - Method in class org.apache.hadoop.io.SequenceFile.Reader
Seek to the next sync mark past a given position.
syncSeen() - Method in class org.apache.hadoop.io.SequenceFile.Reader
Returns true iff the previous call to next passed a sync mark.

T

TaskReport - class org.apache.hadoop.mapred.TaskReport.
A report on the state of a task.
TaskReport() - Constructor for class org.apache.hadoop.mapred.TaskReport
 
TaskTracker - class org.apache.hadoop.mapred.TaskTracker.
TaskTracker is a process that starts and tracks MR Tasks in a networked environment.
TaskTracker(Configuration) - Constructor for class org.apache.hadoop.mapred.TaskTracker
Start with the local machine name, and the default JobTracker
TaskTracker(InetSocketAddress, Configuration) - Constructor for class org.apache.hadoop.mapred.TaskTracker
Start with the local machine name, and the addr of the target JobTracker
TaskTracker.Child - class org.apache.hadoop.mapred.TaskTracker.Child.
The main() for child processes.
TaskTracker.Child() - Constructor for class org.apache.hadoop.mapred.TaskTracker.Child
 
TextInputFormat - class org.apache.hadoop.mapred.TextInputFormat.
An InputFormat for plain text files.
TextInputFormat() - Constructor for class org.apache.hadoop.mapred.TextInputFormat
 
TextOutputFormat - class org.apache.hadoop.mapred.TextOutputFormat.
An OutputFormat that writes plain text files.
TextOutputFormat() - Constructor for class org.apache.hadoop.mapred.TextOutputFormat
 
TokenCountMapper - class org.apache.hadoop.mapred.lib.TokenCountMapper.
A Mapper that maps text values into pairs.
TokenCountMapper() - Constructor for class org.apache.hadoop.mapred.lib.TokenCountMapper
 
TwoDArrayWritable - class org.apache.hadoop.io.TwoDArrayWritable.
A Writable for 2D arrays containing a matrix of instances of a class.
TwoDArrayWritable(Class) - Constructor for class org.apache.hadoop.io.TwoDArrayWritable
 
TwoDArrayWritable(Class, Writable[][]) - Constructor for class org.apache.hadoop.io.TwoDArrayWritable
 
taskTrackers() - Method in class org.apache.hadoop.mapred.JobTracker
 
toArray() - Method in class org.apache.hadoop.io.ArrayWritable
 
toArray() - Method in class org.apache.hadoop.io.TwoDArrayWritable
 
toString() - Method in class org.apache.hadoop.conf.Configuration
 
toString() - Method in class org.apache.hadoop.dfs.DFSck.Result
 
toString() - Method in class org.apache.hadoop.dfs.DataNode
 
toString() - Method in class org.apache.hadoop.dfs.DataNodeReport
 
toString() - Method in class org.apache.hadoop.dfs.DistributedFileSystem
 
toString() - Method in class org.apache.hadoop.fs.DF
 
toString() - Method in class org.apache.hadoop.fs.LocalFileSystem
 
toString() - Method in class org.apache.hadoop.io.FloatWritable
 
toString() - Method in class org.apache.hadoop.io.IntWritable
 
toString() - Method in class org.apache.hadoop.io.LongWritable
 
toString() - Method in class org.apache.hadoop.io.MD5Hash
Returns a string representation of this object.
toString() - Method in class org.apache.hadoop.io.SequenceFile.Reader
Returns the name of the file.
toString() - Method in class org.apache.hadoop.io.UTF8
Convert to a String.
toString() - Method in class org.apache.hadoop.io.VersionMismatchException
Returns a string representation of this object.
toString() - Method in class org.apache.hadoop.mapred.FileSplit
 
toString() - Method in class org.apache.hadoop.util.Progress
 
toStrings() - Method in class org.apache.hadoop.io.ArrayWritable
 

U

UTF8 - class org.apache.hadoop.io.UTF8.
A WritableComparable for strings that uses the UTF8 encoding.
UTF8() - Constructor for class org.apache.hadoop.io.UTF8
 
UTF8(String) - Constructor for class org.apache.hadoop.io.UTF8
Construct from a given string.
UTF8(UTF8) - Constructor for class org.apache.hadoop.io.UTF8
Construct from a given string.
UTF8.Comparator - class org.apache.hadoop.io.UTF8.Comparator.
A WritableComparator optimized for UTF8 keys.
UTF8.Comparator() - Constructor for class org.apache.hadoop.io.UTF8.Comparator
 

V

VersionMismatchException - exception org.apache.hadoop.io.VersionMismatchException.
Thrown by VersionedWritable.readFields(DataInput) when the version of an object being read does not match the current implementation version as returned by VersionedWritable.getVersion().
VersionMismatchException(byte, byte) - Constructor for class org.apache.hadoop.io.VersionMismatchException
 
VersionedWritable - class org.apache.hadoop.io.VersionedWritable.
A base class for Writables that provides version checking.
VersionedWritable() - Constructor for class org.apache.hadoop.io.VersionedWritable
 

W

WordCount - class org.apache.hadoop.examples.WordCount.
This is an example Hadoop Map/Reduce application.
WordCount() - Constructor for class org.apache.hadoop.examples.WordCount
 
WordCount.MapClass - class org.apache.hadoop.examples.WordCount.MapClass.
Counts the words in each line.
WordCount.MapClass() - Constructor for class org.apache.hadoop.examples.WordCount.MapClass
 
WordCount.Reduce - class org.apache.hadoop.examples.WordCount.Reduce.
A reducer class that just emits the sum of the input values.
WordCount.Reduce() - Constructor for class org.apache.hadoop.examples.WordCount.Reduce
 
Writable - interface org.apache.hadoop.io.Writable.
A simple, efficient, serialization protocol, based on DataInput and DataOutput.
WritableComparable - interface org.apache.hadoop.io.WritableComparable.
An interface which extends both Writable and Comparable.
WritableComparator - class org.apache.hadoop.io.WritableComparator.
A Comparator for WritableComparables.
WritableComparator(Class) - Constructor for class org.apache.hadoop.io.WritableComparator
Construct for a WritableComparable implementation.
WritableFactories - class org.apache.hadoop.io.WritableFactories.
Factories for non-public writables.
WritableFactory - interface org.apache.hadoop.io.WritableFactory.
A factory for a class of Writable.
WritableName - class org.apache.hadoop.io.WritableName.
Utility to permit renaming of Writable implementation classes without invalidiating files that contain their class name.
WritableUtils - class org.apache.hadoop.io.WritableUtils.
 
WritableUtils() - Constructor for class org.apache.hadoop.io.WritableUtils
 
waitForCompletion() - Method in interface org.apache.hadoop.mapred.RunningJob
Blocks until the job is complete.
write(OutputStream) - Method in class org.apache.hadoop.conf.Configuration
Writes non-default properties in this configuration.
write(DataOutput) - Method in class org.apache.hadoop.io.ArrayWritable
 
write(DataOutput) - Method in class org.apache.hadoop.io.BooleanWritable
 
write(DataOutput) - Method in class org.apache.hadoop.io.BytesWritable
 
write(DataOutput) - Method in class org.apache.hadoop.io.CompressedWritable
 
write(DataInput, int) - Method in class org.apache.hadoop.io.DataOutputBuffer
Writes bytes from a DataInput directly into the buffer.
write(DataOutput) - Method in class org.apache.hadoop.io.FloatWritable
 
write(DataOutput) - Method in class org.apache.hadoop.io.IntWritable
 
write(DataOutput) - Method in class org.apache.hadoop.io.LongWritable
 
write(DataOutput) - Method in class org.apache.hadoop.io.MD5Hash
 
write(DataOutput) - Method in class org.apache.hadoop.io.NullWritable
 
write(DataOutput) - Method in class org.apache.hadoop.io.ObjectWritable
 
write(DataOutput) - Method in class org.apache.hadoop.io.TwoDArrayWritable
 
write(DataOutput) - Method in class org.apache.hadoop.io.UTF8
 
write(DataOutput) - Method in class org.apache.hadoop.io.VersionedWritable
 
write(DataOutput) - Method in interface org.apache.hadoop.io.Writable
Writes the fields of this object to out.
write(DataOutput) - Method in class org.apache.hadoop.mapred.ClusterStatus
 
write(DataOutput) - Method in class org.apache.hadoop.mapred.FileSplit
 
write(WritableComparable, Writable) - Method in interface org.apache.hadoop.mapred.RecordWriter
Writes a key/value pair.
write(DataOutput) - Method in class org.apache.hadoop.mapred.TaskReport
 
writeCompressed(DataOutput) - Method in class org.apache.hadoop.io.CompressedWritable
Subclasses implement this instead of CompressedWritable.write(DataOutput).
writeCompressedByteArray(DataOutput, byte[]) - Static method in class org.apache.hadoop.io.WritableUtils
 
writeCompressedString(DataOutput, String) - Static method in class org.apache.hadoop.io.WritableUtils
 
writeCompressedStringArray(DataOutput, String[]) - Static method in class org.apache.hadoop.io.WritableUtils
 
writeObject(DataOutput, Object, Class) - Static method in class org.apache.hadoop.io.ObjectWritable
Write a Writable, String, primitive type, or an array of the preceding.
writeString(DataOutput, String) - Static method in class org.apache.hadoop.io.UTF8
Write a UTF-8 encoded string.
writeString(DataOutput, String) - Static method in class org.apache.hadoop.io.WritableUtils
 
writeStringArray(DataOutput, String[]) - Static method in class org.apache.hadoop.io.WritableUtils
 

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