org.apache.accumulo.server.fs

Interface VolumeManager

All Known Implementing Classes:

VolumeManagerImpl

public interface VolumeManager

A wrapper around multiple hadoop FileSystem objects, which are assumed to be different volumes. This also concentrates a bunch of meta-operations like waiting for SAFE_MODE, and closing WALs. N.B. implementations must be thread safe.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	VolumeManager.FileType

Method Summary

Methods

Modifier and Type	Method and Description
String	choose(com.google.common.base.Optional<String> tableId, String[] options)
void	close()
org.apache.hadoop.fs.FSDataOutputStream	create(org.apache.hadoop.fs.Path dest)
org.apache.hadoop.fs.FSDataOutputStream	create(org.apache.hadoop.fs.Path path, boolean b)
org.apache.hadoop.fs.FSDataOutputStream	create(org.apache.hadoop.fs.Path path, boolean b, int int1, short int2, long long1)
boolean	createNewFile(org.apache.hadoop.fs.Path writable)
org.apache.hadoop.fs.FSDataOutputStream	createSyncable(org.apache.hadoop.fs.Path logPath, int buffersize, short replication, long blockSize)
boolean	delete(org.apache.hadoop.fs.Path path)
boolean	deleteRecursively(org.apache.hadoop.fs.Path path)
boolean	exists(org.apache.hadoop.fs.Path path)
org.apache.hadoop.fs.ContentSummary	getContentSummary(org.apache.hadoop.fs.Path dir)
short	getDefaultReplication(org.apache.hadoop.fs.Path logPath)
Volume	getDefaultVolume() Fetch the default Volume
org.apache.hadoop.fs.FileStatus	getFileStatus(org.apache.hadoop.fs.Path path)
org.apache.hadoop.fs.Path	getFullPath(Key key)
org.apache.hadoop.fs.Path	getFullPath(String tableId, String path)
org.apache.hadoop.fs.Path	getFullPath(VolumeManager.FileType fileType, String fileName)
Volume	getVolumeByPath(org.apache.hadoop.fs.Path path)
Collection<Volume>	getVolumes() Fetch the configured Volumes, excluding the default Volume
org.apache.hadoop.fs.FileStatus[]	globStatus(org.apache.hadoop.fs.Path path)
boolean	isFile(org.apache.hadoop.fs.Path path)
boolean	isReady()
org.apache.hadoop.fs.FileStatus[]	listStatus(org.apache.hadoop.fs.Path path)
org.apache.hadoop.fs.Path	matchingFileSystem(org.apache.hadoop.fs.Path source, String[] options)
boolean	mkdirs(org.apache.hadoop.fs.Path directory)
boolean	moveToTrash(org.apache.hadoop.fs.Path sourcePath)
org.apache.hadoop.fs.FSDataInputStream	open(org.apache.hadoop.fs.Path path)
boolean	rename(org.apache.hadoop.fs.Path path, org.apache.hadoop.fs.Path newPath)

Method Detail

close

void close()
           throws IOException

Throws:

IOException

create

org.apache.hadoop.fs.FSDataOutputStream create(org.apache.hadoop.fs.Path dest)
                                               throws IOException

Throws:

IOException

create

org.apache.hadoop.fs.FSDataOutputStream create(org.apache.hadoop.fs.Path path,
                                             boolean b)
                                               throws IOException

Throws:

IOException

create

org.apache.hadoop.fs.FSDataOutputStream create(org.apache.hadoop.fs.Path path,
                                             boolean b,
                                             int int1,
                                             short int2,
                                             long long1)
                                               throws IOException

Throws:

IOException

createNewFile

boolean createNewFile(org.apache.hadoop.fs.Path writable)
                      throws IOException

Throws:

IOException

createSyncable

org.apache.hadoop.fs.FSDataOutputStream createSyncable(org.apache.hadoop.fs.Path logPath,
                                                     int buffersize,
                                                     short replication,
                                                     long blockSize)
                                                       throws IOException

Throws:

IOException

delete

boolean delete(org.apache.hadoop.fs.Path path)
               throws IOException

Throws:

IOException

deleteRecursively

boolean deleteRecursively(org.apache.hadoop.fs.Path path)
                          throws IOException

Throws:

IOException

exists

boolean exists(org.apache.hadoop.fs.Path path)
               throws IOException

Throws:

IOException

getFileStatus

org.apache.hadoop.fs.FileStatus getFileStatus(org.apache.hadoop.fs.Path path)
                                              throws IOException

Throws:

IOException

getVolumeByPath

Volume getVolumeByPath(org.apache.hadoop.fs.Path path)

matchingFileSystem

org.apache.hadoop.fs.Path matchingFileSystem(org.apache.hadoop.fs.Path source,
                                           String[] options)

listStatus

org.apache.hadoop.fs.FileStatus[] listStatus(org.apache.hadoop.fs.Path path)
                                             throws IOException

Throws:

IOException

mkdirs

boolean mkdirs(org.apache.hadoop.fs.Path directory)
               throws IOException

Throws:

IOException

open

org.apache.hadoop.fs.FSDataInputStream open(org.apache.hadoop.fs.Path path)
                                            throws IOException

Throws:

IOException

rename

boolean rename(org.apache.hadoop.fs.Path path,
             org.apache.hadoop.fs.Path newPath)
               throws IOException

Throws:

IOException

moveToTrash

boolean moveToTrash(org.apache.hadoop.fs.Path sourcePath)
                    throws IOException

Throws:

IOException

getDefaultReplication

short getDefaultReplication(org.apache.hadoop.fs.Path logPath)

isFile

boolean isFile(org.apache.hadoop.fs.Path path)
               throws IOException

Throws:

IOException

isReady

boolean isReady()
                throws IOException

Throws:

IOException

globStatus

org.apache.hadoop.fs.FileStatus[] globStatus(org.apache.hadoop.fs.Path path)
                                             throws IOException

Throws:

IOException

getFullPath

org.apache.hadoop.fs.Path getFullPath(Key key)

getFullPath

org.apache.hadoop.fs.Path getFullPath(String tableId,
                                    String path)

getFullPath

org.apache.hadoop.fs.Path getFullPath(VolumeManager.FileType fileType,
                                    String fileName)
                                      throws IOException

Throws:

IOException

getContentSummary

org.apache.hadoop.fs.ContentSummary getContentSummary(org.apache.hadoop.fs.Path dir)
                                                      throws IOException

Throws:

IOException

choose

String choose(com.google.common.base.Optional<String> tableId,
            String[] options)

getDefaultVolume

Volume getDefaultVolume()

Fetch the default Volume

getVolumes

Collection<Volume> getVolumes()

Fetch the configured Volumes, excluding the default Volume