Package org.apache.accumulo.server

Class ServerConstants

java.lang.Object

org.apache.accumulo.server.ServerConstants

public class ServerConstants
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static BitSet	CAN_UPGRADE
static int	DATA_VERSION	this is the current data version
static String	FILE_ARCHIVE_DIR
static String	INSTANCE_ID_DIR
static int	LOGGING_TO_HDFS	version (4) moves logging to HDFS in 1.5.0
static int	MOVE_DELETE_MARKERS	version (5) moves delete file markers for the metadata table into the root tablet
static int	MOVE_TO_REPLICATION_TABLE	version (7) also reflects the addition of a replication table
static int	MOVE_TO_ROOT_TABLE	version (6) reflects the addition of a separate root table (ACCUMULO-1481) in version 1.6.0
static BitSet	NEEDS_UPGRADE
static String	RECOVERY_DIR
static int	SHORTEN_RFILE_KEYS	version (8) reflects changes to RFile index (ACCUMULO-1124) in version 1.8.0
static String	TABLE_DIR
static String	VERSION_DIR
static String	WAL_DIR
static String	WALOG_ARCHIVE_DIR
static Integer	WIRE_VERSION	current version (3) reflects additional namespace operations (ACCUMULO-802) in version 1.6.0 (versions should never be negative)

Constructor Summary

Constructors

Constructor	Description
ServerConstants()

Method Summary

Modifier and Type	Method	Description
static String[]	checkBaseUris(String[] configuredBaseDirs, boolean ignore)
static String[]	getBaseUris()
static org.apache.hadoop.fs.Path	getDataVersionLocation(Volume v)
static org.apache.hadoop.fs.Path	getInstanceIdLocation(Volume v)
static String[]	getRecoveryDirs()
static String[]	getTablesDirs()
static List<Pair<org.apache.hadoop.fs.Path,org.apache.hadoop.fs.Path>>	getVolumeReplacements()
static String[]	getWalDirs()
static String[]	getWalogArchives()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

VERSION_DIR

public static final String VERSION_DIR

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Constant Field Values

INSTANCE_ID_DIR

public static final String INSTANCE_ID_DIR

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Constant Field Values

WIRE_VERSION

public static final Integer WIRE_VERSION

current version (3) reflects additional namespace operations (ACCUMULO-802) in version 1.6.0
(versions should never be negative)

SHORTEN_RFILE_KEYS

public static final int SHORTEN_RFILE_KEYS

version (8) reflects changes to RFile index (ACCUMULO-1124) in version 1.8.0

See Also:

Constant Field Values

MOVE_TO_REPLICATION_TABLE

public static final int MOVE_TO_REPLICATION_TABLE

version (7) also reflects the addition of a replication table

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Constant Field Values

DATA_VERSION

public static final int DATA_VERSION

this is the current data version

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Constant Field Values

MOVE_TO_ROOT_TABLE

public static final int MOVE_TO_ROOT_TABLE

version (6) reflects the addition of a separate root table (ACCUMULO-1481) in version 1.6.0

See Also:

Constant Field Values

MOVE_DELETE_MARKERS

public static final int MOVE_DELETE_MARKERS

version (5) moves delete file markers for the metadata table into the root tablet

See Also:

Constant Field Values

LOGGING_TO_HDFS

public static final int LOGGING_TO_HDFS

version (4) moves logging to HDFS in 1.5.0

See Also:

Constant Field Values

CAN_UPGRADE

public static final BitSet CAN_UPGRADE

NEEDS_UPGRADE

public static final BitSet NEEDS_UPGRADE

TABLE_DIR

public static final String TABLE_DIR

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Constant Field Values

RECOVERY_DIR

public static final String RECOVERY_DIR

See Also:

Constant Field Values

WAL_DIR

public static final String WAL_DIR

See Also:

Constant Field Values

WALOG_ARCHIVE_DIR

public static final String WALOG_ARCHIVE_DIR

See Also:

Constant Field Values

FILE_ARCHIVE_DIR

public static final String FILE_ARCHIVE_DIR

See Also:

Constant Field Values

Constructor Detail

ServerConstants

public ServerConstants()

Method Detail

getBaseUris

public static String[] getBaseUris()

checkBaseUris

public static String[] checkBaseUris(String[] configuredBaseDirs,
                                     boolean ignore)

getTablesDirs

public static String[] getTablesDirs()

getRecoveryDirs

public static String[] getRecoveryDirs()

getWalDirs

public static String[] getWalDirs()

getWalogArchives

public static String[] getWalogArchives()

getInstanceIdLocation

public static org.apache.hadoop.fs.Path getInstanceIdLocation(Volume v)

getDataVersionLocation

public static org.apache.hadoop.fs.Path getDataVersionLocation(Volume v)

getVolumeReplacements

public static List<Pair<org.apache.hadoop.fs.Path,org.apache.hadoop.fs.Path>> getVolumeReplacements()