org.apache.hadoop.hdfs.server.common

类 UpgradeManager

java.lang.Object

org.apache.hadoop.hdfs.server.common.UpgradeManager

public abstract class UpgradeManager
extends Object

Generic upgrade manager. broadcastCommand is the command that should be

字段概要

字段

限定符和类型	字段和说明
protected UpgradeCommand	broadcastCommand
protected SortedSet<Upgradeable>	currentUpgrades
protected boolean	upgradeState
protected int	upgradeVersion

构造器概要

构造器

构造器和说明
UpgradeManager()

方法概要

方法

限定符和类型	方法和说明
abstract void	completeUpgrade()
UpgradeCommand	getBroadcastCommand()
SortedSet<Upgradeable>	getDistributedUpgrades()
abstract HdfsConstants.NodeType	getType()
boolean	getUpgradeState()
short	getUpgradeStatus()
int	getUpgradeVersion()
boolean	initializeUpgrade()
boolean	isUpgradeCompleted()
void	setUpgradeState(boolean uState, int uVersion)
abstract boolean	startUpgrade()

从类继承的方法 java.lang.Object

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

字段详细资料

currentUpgrades

protected SortedSet<Upgradeable> currentUpgrades

upgradeState

protected boolean upgradeState

upgradeVersion

protected int upgradeVersion

broadcastCommand

protected UpgradeCommand broadcastCommand

构造器详细资料

UpgradeManager

public UpgradeManager()

方法详细资料

getBroadcastCommand

public UpgradeCommand getBroadcastCommand()

getUpgradeState

public boolean getUpgradeState()

getUpgradeVersion

public int getUpgradeVersion()

setUpgradeState

public void setUpgradeState(boolean uState,
                   int uVersion)

getDistributedUpgrades

public SortedSet<Upgradeable> getDistributedUpgrades()
                                              throws IOException

抛出:

IOException

getUpgradeStatus

public short getUpgradeStatus()

initializeUpgrade

public boolean initializeUpgrade()
                          throws IOException

抛出:

IOException

isUpgradeCompleted

public boolean isUpgradeCompleted()

getType

public abstract HdfsConstants.NodeType getType()

startUpgrade

public abstract boolean startUpgrade()
                              throws IOException

抛出:

IOException

completeUpgrade

public abstract void completeUpgrade()
                              throws IOException

抛出:

IOException