Package org.apache.drill.exec.work.foreman.rm

Class AbstractResourceManager

java.lang.Object

org.apache.drill.exec.work.foreman.rm.AbstractResourceManager

All Implemented Interfaces:

ResourceManager

Direct Known Subclasses:

ThrottledResourceManager

public abstract class AbstractResourceManager
extends Object
implements ResourceManager

Abstract base class for a resource manager. Handles tasks common to all resource managers: learning the resources available on this Drillbit. In the current version, Drillbits must be symmetrical, so that knowing the resources on one node is sufficient to know resources available on all nodes.

Field Summary

Fields

Modifier and Type	Field	Description
protected final DrillbitContext	context

Constructor Summary

Constructors

Constructor	Description
AbstractResourceManager(DrillbitContext context)

Method Summary

Modifier and Type	Method	Description
int	cpusPerNode()
long	memoryPerNode()	Returns the memory, in bytes, assigned to each node in a Drill cluster.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.drill.exec.work.foreman.rm.ResourceManager

close, newQueryRM, newResourceAllocator

Field Details

context

protected final DrillbitContext context

Constructor Details

AbstractResourceManager

public AbstractResourceManager(DrillbitContext context)

Method Details

memoryPerNode

public long memoryPerNode()

Description copied from interface: ResourceManager

Returns the memory, in bytes, assigned to each node in a Drill cluster. Drill requires that nodes are symmetrical. So, knowing the memory on any one node also gives the memory on all other nodes.

Specified by:

memoryPerNode in interface ResourceManager

Returns:

the memory, in bytes, available in each Drillbit

cpusPerNode

public int cpusPerNode()

Specified by:

cpusPerNode in interface ResourceManager