org.apache.hadoop.hdfs.protocol
Interface FSConstants

All Known Implementing Classes:
BackupNode, DataNode, DFSClient, FSDataset, FSNamesystem, NameNode

@InterfaceAudience.Private
public interface FSConstants

Some handy constants


Nested Class Summary
static class FSConstants.DatanodeReportType
           
static class FSConstants.SafeModeAction
           
static class FSConstants.UpgradeAction
          Distributed upgrade actions: 1.
 
Field Summary
static int BLOCK_INVALIDATE_CHUNK
           
static long BLOCKREPORT_INITIAL_DELAY
           
static long BLOCKREPORT_INTERVAL
           
static int BUFFER_SIZE
           
static long DEFAULT_BLOCK_SIZE
           
static int DEFAULT_BYTES_PER_CHECKSUM
           
static int DEFAULT_DATA_SOCKET_SIZE
           
static int DEFAULT_FILE_BUFFER_SIZE
           
static short DEFAULT_REPLICATION_FACTOR
           
static int DEFAULT_WRITE_PACKET_SIZE
           
static String HDFS_URI_SCHEME
          URI Scheme for hdfs://namenode/ URIs.
static long HEARTBEAT_INTERVAL
           
static int LAYOUT_VERSION
           
static long LEASE_HARDLIMIT_PERIOD
           
static long LEASE_RECOVER_PERIOD
           
static long LEASE_SOFTLIMIT_PERIOD
           
static int MAX_PATH_DEPTH
           
static int MAX_PATH_LENGTH
           
static int MIN_BLOCKS_FOR_WRITE
           
static long QUOTA_DONT_SET
           
static long QUOTA_RESET
           
static int SIZE_OF_INTEGER
           
static int SMALL_BUFFER_SIZE
           
 

Field Detail

MIN_BLOCKS_FOR_WRITE

static final int MIN_BLOCKS_FOR_WRITE
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Constant Field Values

BLOCK_INVALIDATE_CHUNK

static final int BLOCK_INVALIDATE_CHUNK
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Constant Field Values

QUOTA_DONT_SET

static final long QUOTA_DONT_SET
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Constant Field Values

QUOTA_RESET

static final long QUOTA_RESET
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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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Constant Field Values

BLOCKREPORT_INITIAL_DELAY

static final long BLOCKREPORT_INITIAL_DELAY
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Constant Field Values

LEASE_SOFTLIMIT_PERIOD

static final long LEASE_SOFTLIMIT_PERIOD
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Constant Field Values

LEASE_HARDLIMIT_PERIOD

static final long LEASE_HARDLIMIT_PERIOD
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Constant Field Values

LEASE_RECOVER_PERIOD

static final long LEASE_RECOVER_PERIOD
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Constant Field Values

MAX_PATH_LENGTH

static final int MAX_PATH_LENGTH
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Constant Field Values

MAX_PATH_DEPTH

static final int MAX_PATH_DEPTH
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BUFFER_SIZE

static final int BUFFER_SIZE

SMALL_BUFFER_SIZE

static final int SMALL_BUFFER_SIZE

DEFAULT_BLOCK_SIZE

static final long DEFAULT_BLOCK_SIZE
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Constant Field Values

DEFAULT_BYTES_PER_CHECKSUM

static final int DEFAULT_BYTES_PER_CHECKSUM
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Constant Field Values

DEFAULT_WRITE_PACKET_SIZE

static final int DEFAULT_WRITE_PACKET_SIZE
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Constant Field Values

DEFAULT_REPLICATION_FACTOR

static final short DEFAULT_REPLICATION_FACTOR
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Constant Field Values

DEFAULT_FILE_BUFFER_SIZE

static final int DEFAULT_FILE_BUFFER_SIZE
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Constant Field Values

DEFAULT_DATA_SOCKET_SIZE

static final int DEFAULT_DATA_SOCKET_SIZE
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Constant Field Values

SIZE_OF_INTEGER

static final int SIZE_OF_INTEGER
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Constant Field Values

HDFS_URI_SCHEME

static final String HDFS_URI_SCHEME
URI Scheme for hdfs://namenode/ URIs.

See Also:
Constant Field Values

LAYOUT_VERSION

static final int LAYOUT_VERSION
See Also:
Constant Field Values


Copyright © 2009 The Apache Software Foundation