com.pervasive.datarush.cluster

Enum NodeAllocationStrategy

java.lang.Object

java.lang.Enum<NodeAllocationStrategy>

com.pervasive.datarush.cluster.NodeAllocationStrategy

All Implemented Interfaces:

Serializable, Comparable<NodeAllocationStrategy>

public enum NodeAllocationStrategy
extends Enum<NodeAllocationStrategy>

Enum Constant Summary

Enum Constants

Enum Constant and Description
FULL Allocate all cores on all nodes
NARROW_FIRST Allocate up to the number of processors on each node until all nodes allocated or until the specified parallelism is reached
WIDE_FIRST Allocate round-robin across the cluster until we've allocated the specified number of pipelines

Method Summary

Methods

Modifier and Type	Method and Description
abstract NodePartitionPlan	allocate(List<NodeResourceState> ordered, int numPipelines, ResourceAllocation partitionUsage)
static NodeAllocationStrategy	valueOf(String name) Returns the enum constant of this type with the specified name.
static NodeAllocationStrategy[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

WIDE_FIRST

public static final NodeAllocationStrategy WIDE_FIRST

Allocate round-robin across the cluster until we've allocated the specified number of pipelines

NARROW_FIRST

public static final NodeAllocationStrategy NARROW_FIRST

Allocate up to the number of processors on each node until all nodes allocated or until the specified parallelism is reached

FULL

public static final NodeAllocationStrategy FULL

Allocate all cores on all nodes

Method Detail

values

public static NodeAllocationStrategy[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (NodeAllocationStrategy c : NodeAllocationStrategy.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static NodeAllocationStrategy valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

allocate

public abstract NodePartitionPlan allocate(List<NodeResourceState> ordered,
                         int numPipelines,
                         ResourceAllocation partitionUsage)