org.apache.hadoop.tools.rumen

Class MachineNode.Builder

java.lang.Object

org.apache.hadoop.tools.rumen.MachineNode.Builder

Enclosing class:

MachineNode

public static final class MachineNode.Builder
extends Object

Builder for a NodeInfo object

Constructor Summary

Constructors

Constructor and Description
Builder(String name, int level) Start building a new NodeInfo object.

Method Summary

Modifier and Type	Method and Description
MachineNode	build() Build the MachineNode object.
MachineNode.Builder	cloneFrom(MachineNode ref) Clone the settings from a reference MachineNode object.
MachineNode.Builder	setMapSlots(int mapSlots) Set the number of map slot for the node.
MachineNode.Builder	setMemory(long memory) Set the physical memory of the node.
MachineNode.Builder	setMemoryPerMapSlot(long memoryPerMapSlot) Set the amount of RAM reserved for each map slot.
MachineNode.Builder	setMemoryPerReduceSlot(long memoryPerReduceSlot) Set the amount of RAM reserved for each reduce slot.
MachineNode.Builder	setNumCores(int numCores) Set the number of cores for the node.
MachineNode.Builder	setReduceSlots(int reduceSlots) Set the number of reduce slot for the node.

Methods inherited from class java.lang.Object

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

Constructor Detail

Builder

public Builder(String name,
               int level)

Start building a new NodeInfo object.

Parameters:

name - Unique name of the node. Typically the fully qualified domain name.

Method Detail

setMemory

public MachineNode.Builder setMemory(long memory)

Set the physical memory of the node.

Parameters:

memory - Available RAM in KB.

setMapSlots

public MachineNode.Builder setMapSlots(int mapSlots)

Set the number of map slot for the node.

Parameters:

mapSlots - The number of map slots for the node.

setReduceSlots

public MachineNode.Builder setReduceSlots(int reduceSlots)

Set the number of reduce slot for the node.

Parameters:

reduceSlots - The number of reduce slots for the node.

setMemoryPerMapSlot

public MachineNode.Builder setMemoryPerMapSlot(long memoryPerMapSlot)

Set the amount of RAM reserved for each map slot.

Parameters:

memoryPerMapSlot - The amount of RAM reserved for each map slot, in KB.

setMemoryPerReduceSlot

public MachineNode.Builder setMemoryPerReduceSlot(long memoryPerReduceSlot)

Set the amount of RAM reserved for each reduce slot.

Parameters:

memoryPerReduceSlot - The amount of RAM reserved for each reduce slot, in KB.

setNumCores

public MachineNode.Builder setNumCores(int numCores)

Set the number of cores for the node.

Parameters:

numCores - Number of cores for the node.

cloneFrom

public MachineNode.Builder cloneFrom(MachineNode ref)

Clone the settings from a reference MachineNode object.

Parameters:

ref - The reference MachineNode object.

build

public MachineNode build()

Build the MachineNode object.

Returns:

The MachineNode object being built.