org.apache.hadoop.hbase.migration

类 NamespaceUpgrade

java.lang.Object

org.apache.hadoop.hbase.migration.NamespaceUpgrade

所有已实现的接口:

org.apache.hadoop.conf.Configurable, org.apache.hadoop.util.Tool

public class NamespaceUpgrade
extends Object
implements org.apache.hadoop.util.Tool

Upgrades old 0.94 filesystem layout to namespace layout Does the following: - creates system namespace directory and move .META. table there renaming .META. table to hbase:meta, this in turn would require to re-encode the region directory name

The pre-0.96 paths and dir names are hardcoded in here.

构造器概要

构造器

构造器和说明
NamespaceUpgrade()

方法概要

方法

限定符和类型	方法和说明
void	deleteRoot() Remove the -ROOT- dir.
org.apache.hadoop.conf.Configuration	getConf()
void	init()
void	makeNamespaceDirs() Create the system and default namespaces dirs
void	migrateACL()
void	migrateDotDirs() Rename all the dot dirs -- .data, .archive, etc. -- as data, archive, etc.; i.e. minus the dot.
void	migrateMeta()
void	migrateSnapshots()
void	migrateTables() Migrate all tables into respective namespaces, either default or system.
int	run(String[] args)
void	setConf(org.apache.hadoop.conf.Configuration conf)
void	upgradeTableDirs()
static boolean	verifyNSUpgrade(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path rootDir)

从类继承的方法 java.lang.Object

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

构造器详细资料

NamespaceUpgrade

public NamespaceUpgrade()
                 throws IOException

抛出:

IOException

方法详细资料

init

public void init()
          throws IOException

抛出:

IOException

upgradeTableDirs

public void upgradeTableDirs()
                      throws IOException,
                             DeserializationException

抛出:

IOException

DeserializationException

deleteRoot

public void deleteRoot()
                throws IOException

Remove the -ROOT- dir. No longer of use.

抛出:

IOException

migrateDotDirs

public void migrateDotDirs()
                    throws IOException

Rename all the dot dirs -- .data, .archive, etc. -- as data, archive, etc.; i.e. minus the dot.

抛出:

IOException

makeNamespaceDirs

public void makeNamespaceDirs()
                       throws IOException

Create the system and default namespaces dirs

抛出:

IOException

migrateTables

public void migrateTables()
                   throws IOException

Migrate all tables into respective namespaces, either default or system. We put them into a temporary location, '.data', in case a user table is name 'data'. In a later method we will move stuff from .data to data.

抛出:

IOException

migrateSnapshots

public void migrateSnapshots()
                      throws IOException

抛出:

IOException

migrateMeta

public void migrateMeta()
                 throws IOException

抛出:

IOException

migrateACL

public void migrateACL()
                throws IOException

抛出:

IOException

verifyNSUpgrade

public static boolean verifyNSUpgrade(org.apache.hadoop.fs.FileSystem fs,
                      org.apache.hadoop.fs.Path rootDir)
                               throws IOException

抛出:

IOException

run

public int run(String[] args)
        throws Exception

指定者:

run 在接口中 org.apache.hadoop.util.Tool

抛出:

Exception

setConf

public void setConf(org.apache.hadoop.conf.Configuration conf)

指定者:

setConf 在接口中 org.apache.hadoop.conf.Configurable

getConf

public org.apache.hadoop.conf.Configuration getConf()

指定者:

getConf 在接口中 org.apache.hadoop.conf.Configurable