org.apache.hadoop.dfs
Interface FSConstants

All Known Implementing Classes:

DataNode, NameNode, SecondaryNameNode

public interface FSConstants

Some handy constants

Author:

Mike Cafarella

Nested Class Summary

static class	FSConstants.NodeType Type of the node
static class	FSConstants.SafeModeAction
static class	FSConstants.StartupOption

Field Summary

static int	BLOCK_INVALIDATE_CHUNK
static long	BLOCKREPORT_INTERVAL
static int	BUFFER_SIZE
static byte	CHUNKED_ENCODING
static int	COMPLETE_SUCCESS
static long	HEARTBEAT_INTERVAL
static int	LAYOUT_VERSION
static long	LEASE_HARDLIMIT_PERIOD
static long	LEASE_SOFTLIMIT_PERIOD
static int	MAX_PATH_DEPTH
static int	MAX_PATH_LENGTH
static int	MIN_BLOCKS_FOR_WRITE
static byte	OP_ACK
static byte	OP_BLOCKRECEIVED
static byte	OP_BLOCKREPORT
static byte	OP_CLIENT_ABANDONBLOCK
static byte	OP_CLIENT_ABANDONBLOCK_ACK
static byte	OP_CLIENT_ADDBLOCK
static byte	OP_CLIENT_ADDBLOCK_ACK
static byte	OP_CLIENT_COMPLETEFILE
static byte	OP_CLIENT_COMPLETEFILE_ACK
static byte	OP_CLIENT_DATANODE_HINTS
static byte	OP_CLIENT_DATANODE_HINTS_ACK
static byte	OP_CLIENT_DATANODEREPORT
static byte	OP_CLIENT_DATANODEREPORT_ACK
static byte	OP_CLIENT_DELETE
static byte	OP_CLIENT_DELETE_ACK
static byte	OP_CLIENT_EXISTS
static byte	OP_CLIENT_EXISTS_ACK
static byte	OP_CLIENT_ISDIR
static byte	OP_CLIENT_ISDIR_ACK
static byte	OP_CLIENT_LISTING
static byte	OP_CLIENT_LISTING_ACK
static byte	OP_CLIENT_MKDIRS
static byte	OP_CLIENT_MKDIRS_ACK
static byte	OP_CLIENT_OBTAINLOCK
static byte	OP_CLIENT_OBTAINLOCK_ACK
static byte	OP_CLIENT_OPEN
static byte	OP_CLIENT_OPEN_ACK
static byte	OP_CLIENT_RAWSTATS
static byte	OP_CLIENT_RAWSTATS_ACK
static byte	OP_CLIENT_RELEASELOCK
static byte	OP_CLIENT_RELEASELOCK_ACK
static byte	OP_CLIENT_RENAMETO
static byte	OP_CLIENT_RENAMETO_ACK
static byte	OP_CLIENT_RENEW_LEASE
static byte	OP_CLIENT_RENEW_LEASE_ACK
static byte	OP_CLIENT_STARTFILE
static byte	OP_CLIENT_STARTFILE_ACK
static byte	OP_CLIENT_TRYAGAIN
static byte	OP_ERROR
static byte	OP_FAILURE
static byte	OP_HEARTBEAT
static byte	OP_INVALIDATE_BLOCKS
static byte	OP_READ_BLOCK
static byte	OP_READ_RANGE_BLOCK
static byte	OP_READSKIP_BLOCK
static byte	OP_TRANSFERBLOCKS
static byte	OP_TRANSFERDATA
static byte	OP_WRITE_BLOCK
static int	OPERATION_FAILED
static int	READ_TIMEOUT
static byte	RUNLENGTH_ENCODING
static int	STILL_WAITING
static long	WRITE_COMPLETE

Field Detail

MIN_BLOCKS_FOR_WRITE

static final int MIN_BLOCKS_FOR_WRITE

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WRITE_COMPLETE

static final long WRITE_COMPLETE

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OP_ERROR

static final byte OP_ERROR

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OP_HEARTBEAT

static final byte OP_HEARTBEAT

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OP_BLOCKRECEIVED

static final byte OP_BLOCKRECEIVED

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OP_BLOCKREPORT

static final byte OP_BLOCKREPORT

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OP_TRANSFERDATA

static final byte OP_TRANSFERDATA

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OP_CLIENT_OPEN

static final byte OP_CLIENT_OPEN

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OP_CLIENT_STARTFILE

static final byte OP_CLIENT_STARTFILE

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OP_CLIENT_ADDBLOCK

static final byte OP_CLIENT_ADDBLOCK

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OP_CLIENT_RENAMETO

static final byte OP_CLIENT_RENAMETO

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OP_CLIENT_DELETE

static final byte OP_CLIENT_DELETE

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OP_CLIENT_COMPLETEFILE

static final byte OP_CLIENT_COMPLETEFILE

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OP_CLIENT_LISTING

static final byte OP_CLIENT_LISTING

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OP_CLIENT_OBTAINLOCK

static final byte OP_CLIENT_OBTAINLOCK

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OP_CLIENT_RELEASELOCK

static final byte OP_CLIENT_RELEASELOCK

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OP_CLIENT_EXISTS

static final byte OP_CLIENT_EXISTS

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OP_CLIENT_ISDIR

static final byte OP_CLIENT_ISDIR

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OP_CLIENT_MKDIRS

static final byte OP_CLIENT_MKDIRS

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OP_CLIENT_RENEW_LEASE

static final byte OP_CLIENT_RENEW_LEASE

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OP_CLIENT_ABANDONBLOCK

static final byte OP_CLIENT_ABANDONBLOCK

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OP_CLIENT_RAWSTATS

static final byte OP_CLIENT_RAWSTATS

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OP_CLIENT_DATANODEREPORT

static final byte OP_CLIENT_DATANODEREPORT

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OP_CLIENT_DATANODE_HINTS

static final byte OP_CLIENT_DATANODE_HINTS

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OP_ACK

static final byte OP_ACK

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OP_TRANSFERBLOCKS

static final byte OP_TRANSFERBLOCKS

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OP_INVALIDATE_BLOCKS

static final byte OP_INVALIDATE_BLOCKS

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OP_FAILURE

static final byte OP_FAILURE

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OP_CLIENT_OPEN_ACK

static final byte OP_CLIENT_OPEN_ACK

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OP_CLIENT_STARTFILE_ACK

static final byte OP_CLIENT_STARTFILE_ACK

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OP_CLIENT_ADDBLOCK_ACK

static final byte OP_CLIENT_ADDBLOCK_ACK

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OP_CLIENT_RENAMETO_ACK

static final byte OP_CLIENT_RENAMETO_ACK

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OP_CLIENT_DELETE_ACK

static final byte OP_CLIENT_DELETE_ACK

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OP_CLIENT_COMPLETEFILE_ACK

static final byte OP_CLIENT_COMPLETEFILE_ACK

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OP_CLIENT_TRYAGAIN

static final byte OP_CLIENT_TRYAGAIN

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OP_CLIENT_LISTING_ACK

static final byte OP_CLIENT_LISTING_ACK

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OP_CLIENT_OBTAINLOCK_ACK

static final byte OP_CLIENT_OBTAINLOCK_ACK

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OP_CLIENT_RELEASELOCK_ACK

static final byte OP_CLIENT_RELEASELOCK_ACK

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OP_CLIENT_EXISTS_ACK

static final byte OP_CLIENT_EXISTS_ACK

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OP_CLIENT_ISDIR_ACK

static final byte OP_CLIENT_ISDIR_ACK

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OP_CLIENT_MKDIRS_ACK

static final byte OP_CLIENT_MKDIRS_ACK

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OP_CLIENT_RENEW_LEASE_ACK

static final byte OP_CLIENT_RENEW_LEASE_ACK

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OP_CLIENT_ABANDONBLOCK_ACK

static final byte OP_CLIENT_ABANDONBLOCK_ACK

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OP_CLIENT_RAWSTATS_ACK

static final byte OP_CLIENT_RAWSTATS_ACK

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OP_CLIENT_DATANODEREPORT_ACK

static final byte OP_CLIENT_DATANODEREPORT_ACK

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OP_CLIENT_DATANODE_HINTS_ACK

static final byte OP_CLIENT_DATANODE_HINTS_ACK

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OP_WRITE_BLOCK

static final byte OP_WRITE_BLOCK

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OP_READ_BLOCK

static final byte OP_READ_BLOCK

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OP_READSKIP_BLOCK

static final byte OP_READSKIP_BLOCK

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OP_READ_RANGE_BLOCK

static final byte OP_READ_RANGE_BLOCK

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RUNLENGTH_ENCODING

static final byte RUNLENGTH_ENCODING

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CHUNKED_ENCODING

static final byte CHUNKED_ENCODING

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OPERATION_FAILED

static final int OPERATION_FAILED

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STILL_WAITING

static final int STILL_WAITING

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COMPLETE_SUCCESS

static final int COMPLETE_SUCCESS

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BLOCK_INVALIDATE_CHUNK

static final int BLOCK_INVALIDATE_CHUNK

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HEARTBEAT_INTERVAL

static final long HEARTBEAT_INTERVAL

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BLOCKREPORT_INTERVAL

static final long BLOCKREPORT_INTERVAL

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LEASE_SOFTLIMIT_PERIOD

static final long LEASE_SOFTLIMIT_PERIOD

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LEASE_HARDLIMIT_PERIOD

static final long LEASE_HARDLIMIT_PERIOD

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READ_TIMEOUT

static final int READ_TIMEOUT

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MAX_PATH_LENGTH

static final int MAX_PATH_LENGTH

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MAX_PATH_DEPTH

static final int MAX_PATH_DEPTH

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BUFFER_SIZE

static final int BUFFER_SIZE

LAYOUT_VERSION

static final int LAYOUT_VERSION

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