Uses of Class
org.apache.hadoop.fs.FileSystem

Packages that use FileSystem

Package	Description
org.apache.hadoop.fs	An abstract file system API.
org.apache.hadoop.fs.ftp
org.apache.hadoop.fs.s3	A distributed, block-based implementation of FileSystem that uses Amazon S3 as a backing store.
org.apache.hadoop.fs.s3native	A distributed implementation of FileSystem for reading and writing files on Amazon S3.
org.apache.hadoop.fs.viewfs
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.mapred
org.apache.hadoop.mapred.lib
org.apache.hadoop.mapred.lib.db
org.apache.hadoop.mapreduce
org.apache.hadoop.mapreduce.lib.input

Uses of FileSystem in org.apache.hadoop.fs

Subclasses of FileSystem in org.apache.hadoop.fs

Modifier and Type	Class and Description
class	ChecksumFileSystem Abstract Checksumed FileSystem.
class	FilterFileSystem A FilterFileSystem contains some other file system, which it uses as its basic file system, possibly transforming the data along the way or providing additional functionality.
class	LocalFileSystem Implement the FileSystem API for the checksumed local filesystem.
class	RawLocalFileSystem Implement the FileSystem API for the raw local filesystem.

Fields in org.apache.hadoop.fs declared as FileSystem

Modifier and Type	Field and Description
protected FileSystem	TrashPolicy.fs
protected FileSystem	FilterFileSystem.fs

Methods in org.apache.hadoop.fs that return FileSystem

Modifier and Type	Method and Description
static FileSystem	FileSystem.get(Configuration conf) Returns the configured filesystem implementation.
static FileSystem	FileSystem.get(URI uri, Configuration conf) Returns the FileSystem for this URI's scheme and authority.
static FileSystem	FileSystem.get(URI uri, Configuration conf, String user) Get a filesystem instance based on the uri, the passed configuration and the user
FileSystem[]	FileSystem.getChildFileSystems() Get all the immediate child FileSystems embedded in this FileSystem.
FileSystem[]	FilterFileSystem.getChildFileSystems()
FileSystem	Path.getFileSystem(Configuration conf) Return the FileSystem that owns this Path.
protected static FileSystem	FileSystem.getFSofPath(Path absOrFqPath, Configuration conf)
static FileSystem	FileSystem.getNamed(String name, Configuration conf) Deprecated. call #get(URI,Configuration) instead.
FileSystem	LocalFileSystem.getRaw()
FileSystem	ChecksumFileSystem.getRawFileSystem() get the raw file system
FileSystem	FilterFileSystem.getRawFileSystem() Get the raw file system
static FileSystem	FileSystem.newInstance(Configuration conf) Returns a unique configured filesystem implementation.
static FileSystem	FileSystem.newInstance(URI uri, Configuration conf) Returns the FileSystem for this URI's scheme and authority.
static FileSystem	FileSystem.newInstance(URI uri, Configuration conf, String user) Returns the FileSystem for this URI's scheme and authority and the passed user.

Methods in org.apache.hadoop.fs that return types with arguments of type FileSystem

Modifier and Type	Method and Description
static Class<? extends FileSystem>	FileSystem.getFileSystemClass(String scheme, Configuration conf)

Methods in org.apache.hadoop.fs with parameters of type FileSystem

Modifier and Type	Method and Description
static boolean	FileUtil.copy(File src, FileSystem dstFS, Path dst, boolean deleteSource, Configuration conf) Copy local files to a FileSystem.
static boolean	FileUtil.copy(FileSystem srcFS, FileStatus srcStatus, FileSystem dstFS, Path dst, boolean deleteSource, boolean overwrite, Configuration conf) Copy files between FileSystems.
static boolean	FileUtil.copy(FileSystem srcFS, Path[] srcs, FileSystem dstFS, Path dst, boolean deleteSource, boolean overwrite, Configuration conf)
static boolean	FileUtil.copy(FileSystem srcFS, Path src, File dst, boolean deleteSource, Configuration conf) Copy FileSystem files to local files.
static boolean	FileUtil.copy(FileSystem srcFS, Path src, FileSystem dstFS, Path dst, boolean deleteSource, boolean overwrite, Configuration conf) Copy files between FileSystems.
static boolean	FileUtil.copy(FileSystem srcFS, Path src, FileSystem dstFS, Path dst, boolean deleteSource, Configuration conf) Copy files between FileSystems.
static boolean	FileUtil.copyMerge(FileSystem srcFS, Path srcDir, FileSystem dstFS, Path dstFile, boolean deleteSource, Configuration conf, String addString) Copy all files in a directory to one output file (merge).
static FSDataOutputStream	FileSystem.create(FileSystem fs, Path file, FsPermission permission) create a file with the provided permission The permission of the file is set to be the provided permission as in setPermission, not permission&~umask It is implemented using two RPCs.
static void	FileUtil.fullyDelete(FileSystem fs, Path dir) Deprecated. Use delete(Path, boolean)
static TrashPolicy	TrashPolicy.getInstance(Configuration conf, FileSystem fs, Path home) Get an instance of the configured TrashPolicy based on the value of the configuration parameter fs.trash.classname.
abstract void	TrashPolicy.initialize(Configuration conf, FileSystem fs, Path home) Used to setup the trash policy.
Path	Path.makeQualified(FileSystem fs) Deprecated.
static boolean	FileSystem.mkdirs(FileSystem fs, Path dir, FsPermission permission) create a directory with the provided permission The permission of the directory is set to be the provided permission as in setPermission, not permission&~umask
static boolean	Trash.moveToAppropriateTrash(FileSystem fs, Path p, Configuration conf) In case of the symlinks or mount points, one has to move the appropriate trashbin in the actual volume of the path p being deleted.

Method parameters in org.apache.hadoop.fs with type arguments of type FileSystem

Modifier and Type	Method and Description
static org.apache.hadoop.fs.FileSystem.Statistics	FileSystem.getStatistics(String scheme, Class<? extends FileSystem> cls) Get the statistics for a particular file system

Constructors in org.apache.hadoop.fs with parameters of type FileSystem

Constructor and Description
ChecksumFileSystem(FileSystem fs)
FilterFileSystem(FileSystem fs)
LocalFileSystem(FileSystem rawLocalFileSystem)
Trash(FileSystem fs, Configuration conf) Construct a trash can accessor for the FileSystem provided.

Uses of FileSystem in org.apache.hadoop.fs.ftp

Subclasses of FileSystem in org.apache.hadoop.fs.ftp

Modifier and Type	Class and Description
class	FTPFileSystem A FileSystem backed by an FTP client provided by Apache Commons Net.

Uses of FileSystem in org.apache.hadoop.fs.s3

Subclasses of FileSystem in org.apache.hadoop.fs.s3

Modifier and Type	Class and Description
class	S3FileSystem A block-based FileSystem backed by Amazon S3.

Uses of FileSystem in org.apache.hadoop.fs.s3native

Subclasses of FileSystem in org.apache.hadoop.fs.s3native

Modifier and Type	Class and Description
class	NativeS3FileSystem A FileSystem for reading and writing files stored on Amazon S3.

Uses of FileSystem in org.apache.hadoop.fs.viewfs

Subclasses of FileSystem in org.apache.hadoop.fs.viewfs

Modifier and Type	Class and Description
class	ViewFileSystem ViewFileSystem (extends the FileSystem interface) implements a client-side mount table.

Methods in org.apache.hadoop.fs.viewfs that return FileSystem

Modifier and Type	Method and Description
FileSystem[]	ViewFileSystem.getChildFileSystems()

Uses of FileSystem in org.apache.hadoop.io

Methods in org.apache.hadoop.io with parameters of type FileSystem

Modifier and Type	Method and Description
static org.apache.hadoop.io.SequenceFile.Writer	SequenceFile.createWriter(FileSystem fs, Configuration conf, Path name, Class keyClass, Class valClass) Deprecated. Use SequenceFile.createWriter(Configuration, Writer.Option...) instead.
static org.apache.hadoop.io.SequenceFile.Writer	SequenceFile.createWriter(FileSystem fs, Configuration conf, Path name, Class keyClass, Class valClass, int bufferSize, short replication, long blockSize, boolean createParent, org.apache.hadoop.io.SequenceFile.CompressionType compressionType, CompressionCodec codec, org.apache.hadoop.io.SequenceFile.Metadata metadata) Deprecated.
static org.apache.hadoop.io.SequenceFile.Writer	SequenceFile.createWriter(FileSystem fs, Configuration conf, Path name, Class keyClass, Class valClass, int bufferSize, short replication, long blockSize, org.apache.hadoop.io.SequenceFile.CompressionType compressionType, CompressionCodec codec, Progressable progress, org.apache.hadoop.io.SequenceFile.Metadata metadata) Deprecated. Use SequenceFile.createWriter(Configuration, Writer.Option...) instead.
static org.apache.hadoop.io.SequenceFile.Writer	SequenceFile.createWriter(FileSystem fs, Configuration conf, Path name, Class keyClass, Class valClass, org.apache.hadoop.io.SequenceFile.CompressionType compressionType) Deprecated. Use SequenceFile.createWriter(Configuration, Writer.Option...) instead.
static org.apache.hadoop.io.SequenceFile.Writer	SequenceFile.createWriter(FileSystem fs, Configuration conf, Path name, Class keyClass, Class valClass, org.apache.hadoop.io.SequenceFile.CompressionType compressionType, CompressionCodec codec) Deprecated. Use SequenceFile.createWriter(Configuration, Writer.Option...) instead.
static org.apache.hadoop.io.SequenceFile.Writer	SequenceFile.createWriter(FileSystem fs, Configuration conf, Path name, Class keyClass, Class valClass, org.apache.hadoop.io.SequenceFile.CompressionType compressionType, CompressionCodec codec, Progressable progress) Deprecated. Use SequenceFile.createWriter(Configuration, Writer.Option...) instead.
static org.apache.hadoop.io.SequenceFile.Writer	SequenceFile.createWriter(FileSystem fs, Configuration conf, Path name, Class keyClass, Class valClass, org.apache.hadoop.io.SequenceFile.CompressionType compressionType, CompressionCodec codec, Progressable progress, org.apache.hadoop.io.SequenceFile.Metadata metadata) Deprecated. Use SequenceFile.createWriter(Configuration, Writer.Option...) instead.
static org.apache.hadoop.io.SequenceFile.Writer	SequenceFile.createWriter(FileSystem fs, Configuration conf, Path name, Class keyClass, Class valClass, org.apache.hadoop.io.SequenceFile.CompressionType compressionType, Progressable progress) Deprecated. Use SequenceFile.createWriter(Configuration, Writer.Option...) instead.
static void	MapFile.delete(FileSystem fs, String name) Deletes the named map file.
static void	BloomMapFile.delete(FileSystem fs, String name)
static long	MapFile.fix(FileSystem fs, Path dir, Class<? extends Writable> keyClass, Class<? extends Writable> valueClass, boolean dryrun, Configuration conf) This method attempts to fix a corrupt MapFile by re-creating its index.
static void	MapFile.rename(FileSystem fs, String oldName, String newName) Renames an existing map directory.

Uses of FileSystem in org.apache.hadoop.mapred

Methods in org.apache.hadoop.mapred that return FileSystem

Modifier and Type	Method and Description
FileSystem	JobClient.getFs() Get a filesystem handle.

Methods in org.apache.hadoop.mapred with parameters of type FileSystem

Modifier and Type	Method and Description
protected void	FileInputFormat.addInputPathRecursively(List<FileStatus> result, FileSystem fs, Path path, PathFilter inputFilter) Add files in the input path recursively into the results.
void	OutputFormat.checkOutputSpecs(FileSystem ignored, JobConf job) Check for validity of the output-specification for the job.
void	FileOutputFormat.checkOutputSpecs(FileSystem ignored, JobConf job)
void	SequenceFileAsBinaryOutputFormat.checkOutputSpecs(FileSystem ignored, JobConf job)
static org.apache.hadoop.io.MapFile.Reader[]	MapFileOutputFormat.getReaders(FileSystem ignored, Path dir, Configuration conf) Open the output generated by this format.
RecordWriter<WritableComparable,Writable>	MapFileOutputFormat.getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress)
RecordWriter<K,V>	TextOutputFormat.getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress)
RecordWriter<K,V>	OutputFormat.getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress) Get the RecordWriter for the given job.
abstract RecordWriter<K,V>	FileOutputFormat.getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress)
RecordWriter<BytesWritable,BytesWritable>	SequenceFileAsBinaryOutputFormat.getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress)
RecordWriter<K,V>	SequenceFileOutputFormat.getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress)
static boolean	JobClient.isJobDirValid(Path jobDirPath, FileSystem fs) Checks if the job directory is clean and has all the required components for (re) starting the job
protected boolean	FileInputFormat.isSplitable(FileSystem fs, Path filename) Is the given filename splitable? Usually, true, but if the file is stream compressed, it will not be.
protected boolean	TextInputFormat.isSplitable(FileSystem fs, Path file)
protected boolean	FixedLengthInputFormat.isSplitable(FileSystem fs, Path file)
protected boolean	KeyValueTextInputFormat.isSplitable(FileSystem fs, Path file)

Uses of FileSystem in org.apache.hadoop.mapred.lib

Fields in org.apache.hadoop.mapred.lib declared as FileSystem

Modifier and Type	Field and Description
protected FileSystem	CombineFileRecordReader.fs

Methods in org.apache.hadoop.mapred.lib with parameters of type FileSystem

Modifier and Type	Method and Description
void	NullOutputFormat.checkOutputSpecs(FileSystem ignored, JobConf job)
void	LazyOutputFormat.checkOutputSpecs(FileSystem ignored, JobConf job)
void	FilterOutputFormat.checkOutputSpecs(FileSystem ignored, JobConf job)
protected RecordWriter<K,V>	MultipleTextOutputFormat.getBaseRecordWriter(FileSystem fs, JobConf job, String name, Progressable arg3)
protected RecordWriter<K,V>	MultipleSequenceFileOutputFormat.getBaseRecordWriter(FileSystem fs, JobConf job, String name, Progressable arg3)
protected abstract RecordWriter<K,V>	MultipleOutputFormat.getBaseRecordWriter(FileSystem fs, JobConf job, String name, Progressable arg3)
RecordWriter<K,V>	NullOutputFormat.getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress)
RecordWriter<K,V>	LazyOutputFormat.getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress)
RecordWriter<K,V>	FilterOutputFormat.getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress)
RecordWriter<K,V>	MultipleOutputFormat.getRecordWriter(FileSystem fs, JobConf job, String name, Progressable arg3) Create a composite record writer that can write key/value data to different output files
protected boolean	CombineFileInputFormat.isSplitable(FileSystem fs, Path file)

Uses of FileSystem in org.apache.hadoop.mapred.lib.db

Methods in org.apache.hadoop.mapred.lib.db with parameters of type FileSystem

Modifier and Type	Method and Description
void	DBOutputFormat.checkOutputSpecs(FileSystem filesystem, JobConf job) Check for validity of the output-specification for the job.
RecordWriter<K,V>	DBOutputFormat.getRecordWriter(FileSystem filesystem, JobConf job, String name, Progressable progress) Get the RecordWriter for the given job.

Uses of FileSystem in org.apache.hadoop.mapreduce

Methods in org.apache.hadoop.mapreduce that return FileSystem

Modifier and Type	Method and Description
FileSystem	Cluster.getFileSystem() Get the file system where job-specific files are stored

Methods in org.apache.hadoop.mapreduce with parameters of type FileSystem

Modifier and Type	Method and Description
org.apache.hadoop.mapreduce.JobSubmitter	Job.getJobSubmitter(FileSystem fs, org.apache.hadoop.mapreduce.protocol.ClientProtocol submitClient) Only for mocking via unit tests.

Uses of FileSystem in org.apache.hadoop.mapreduce.lib.input

Fields in org.apache.hadoop.mapreduce.lib.input declared as FileSystem

Modifier and Type	Field and Description
protected FileSystem	CombineFileRecordReader.fs

Methods in org.apache.hadoop.mapreduce.lib.input with parameters of type FileSystem

Modifier and Type	Method and Description
protected void	FileInputFormat.addInputPathRecursively(List<FileStatus> result, FileSystem fs, Path path, PathFilter inputFilter) Add files in the input path recursively into the results.
protected BlockLocation[]	CombineFileInputFormat.getFileBlockLocations(FileSystem fs, FileStatus stat)