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 Set<Integer>	CAN_RUN
static int	CRYPTO_CHANGES	version (9) reflects changes to crypto that resulted in RFiles and WALs being serialized differently in version 2.0.0.
static int	DATA_VERSION	Historic data versions version (7) also reflects the addition of a replication table in 1.7.0 version (6) reflects the addition of a separate root table (ACCUMULO-1481) in 1.6.0 - version (5) moves delete file markers for the metadata table into the root tablet version (4) moves logging to HDFS in 1.5.0
static String	INSTANCE_ID_DIR
static Set<Integer>	NEEDS_UPGRADE
static String	RECOVERY_DIR
static int	SHORTEN_RFILE_KEYS	version (8) reflects changes to RFile index (ACCUMULO-1124) AND the change to WAL tracking in ZK in version 1.8.0
static String	TABLE_DIR
static String	VERSION_DIR
static String	WAL_DIR

Constructor Summary

Constructors

Constructor	Description
ServerConstants()

Method Summary

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

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

See Also:

Constant Field Values

INSTANCE_ID_DIR

public static final String INSTANCE_ID_DIR

See Also:

Constant Field Values

CRYPTO_CHANGES

public static final int CRYPTO_CHANGES

version (9) reflects changes to crypto that resulted in RFiles and WALs being serialized differently in version 2.0.0. Also RFiles in 2.0.0 may have summary data.

See Also:

Constant Field Values

SHORTEN_RFILE_KEYS

public static final int SHORTEN_RFILE_KEYS

version (8) reflects changes to RFile index (ACCUMULO-1124) AND the change to WAL tracking in ZK in version 1.8.0

See Also:

Constant Field Values

DATA_VERSION

public static final int DATA_VERSION

Historic data versions

• version (7) also reflects the addition of a replication table in 1.7.0
• version (6) reflects the addition of a separate root table (ACCUMULO-1481) in 1.6.0 -
• version (5) moves delete file markers for the metadata table into the root tablet
• version (4) moves logging to HDFS in 1.5.0

See Also:

Constant Field Values

CAN_RUN

public static final Set<Integer> CAN_RUN

NEEDS_UPGRADE

public static final Set<Integer> NEEDS_UPGRADE

TABLE_DIR

public static final String TABLE_DIR

See Also:

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

Constructor Detail

ServerConstants

public ServerConstants()

Method Detail

getBaseUris

public static String[] getBaseUris(ServerContext context)

getBaseUris

public static String[] getBaseUris(AccumuloConfiguration conf,
                                   org.apache.hadoop.conf.Configuration hadoopConf)

checkBaseUris

public static String[] checkBaseUris(AccumuloConfiguration conf,
                                     org.apache.hadoop.conf.Configuration hadoopConf,
                                     String[] configuredBaseDirs,
                                     boolean ignore)

getTablesDirs

public static String[] getTablesDirs(ServerContext context)

getRecoveryDirs

public static String[] getRecoveryDirs(ServerContext context)

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(AccumuloConfiguration conf,
                                                                                                          org.apache.hadoop.conf.Configuration hadoopConf)