Package org.apache.hadoop.tools.fedbalance

Class FedBalanceContext.Builder

java.lang.Object

org.apache.hadoop.tools.fedbalance.FedBalanceContext.Builder

Enclosing class:

FedBalanceContext

public static class FedBalanceContext.Builder
extends java.lang.Object

Constructor Summary

Constructors

Constructor	Description
Builder(org.apache.hadoop.fs.Path src, org.apache.hadoop.fs.Path dst, java.lang.String mount, org.apache.hadoop.conf.Configuration conf)	This class helps building the FedBalanceContext.

Method Summary

Modifier and Type	Method	Description
FedBalanceContext	build()	Build the FedBalanceContext.
FedBalanceContext.Builder	setBandwidthLimit(int value)	The bandwidth limit of the distcp job(MB).
FedBalanceContext.Builder	setDelayDuration(long value)	Specify the delayed duration when the procedures need to retry.
FedBalanceContext.Builder	setDiffThreshold(int value)	Specify the threshold of diff entries.
FedBalanceContext.Builder	setForceCloseOpenFiles(boolean value)	Force close open files.
FedBalanceContext.Builder	setMapNum(int value)	The map number of the distcp job.
FedBalanceContext.Builder	setTrash(FedBalanceConfigs.TrashOption value)	Specify the trash behaviour after all the data is sync to the target.
FedBalanceContext.Builder	setUseMountReadOnly(boolean value)	Use mount point readonly to disable write.

Methods inherited from class java.lang.Object

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

Constructor Detail

Builder

public Builder(org.apache.hadoop.fs.Path src,
               org.apache.hadoop.fs.Path dst,
               java.lang.String mount,
               org.apache.hadoop.conf.Configuration conf)

This class helps building the FedBalanceContext.

Parameters:

src - the source path in the source sub-cluster.

dst - the target path in the target sub-cluster.

mount - the mount point to be balanced.

conf - the configuration.

Method Detail

setForceCloseOpenFiles

public FedBalanceContext.Builder setForceCloseOpenFiles(boolean value)

Force close open files.

Parameters:

value - true if force close all the open files.

Returns:

the builder.

setUseMountReadOnly

public FedBalanceContext.Builder setUseMountReadOnly(boolean value)

Use mount point readonly to disable write.

Parameters:

value - true if disabling write by setting mount point readonly.

Returns:

the builder.

setMapNum

public FedBalanceContext.Builder setMapNum(int value)

The map number of the distcp job.

Parameters:

value - the map number of the distcp.

Returns:

the builder.

setBandwidthLimit

public FedBalanceContext.Builder setBandwidthLimit(int value)

The bandwidth limit of the distcp job(MB).

Parameters:

value - the bandwidth.

Returns:

the builder.

setTrash

public FedBalanceContext.Builder setTrash(FedBalanceConfigs.TrashOption value)

Specify the trash behaviour after all the data is sync to the target.

Parameters:

value - the trash option.

Returns:

the builder.

setDelayDuration

public FedBalanceContext.Builder setDelayDuration(long value)

Specify the delayed duration when the procedures need to retry.

Parameters:

value - the delay duration.

Returns:

the builder.

setDiffThreshold

public FedBalanceContext.Builder setDiffThreshold(int value)

Specify the threshold of diff entries.

Parameters:

value - the diff threshold.

Returns:

the builder.

build

public FedBalanceContext build()

Build the FedBalanceContext.

Returns:

the FedBalanceContext obj.