org.apache.hadoop.util
Class MemoryCalculatorPlugin

java.lang.Object
  org.apache.hadoop.conf.Configured
      org.apache.hadoop.util.MemoryCalculatorPlugin

All Implemented Interfaces:

Configurable

Direct Known Subclasses:

LinuxMemoryCalculatorPlugin

Deprecated. Use ResourceCalculatorPlugin instead

@Deprecated
public abstract class MemoryCalculatorPlugin
extends Configured

Plugin to calculate virtual and physical memories on the system.

Constructor Summary

MemoryCalculatorPlugin()
Deprecated.

Method Summary

static MemoryCalculatorPlugin	getMemoryCalculatorPlugin(Class<? extends MemoryCalculatorPlugin> clazz, Configuration conf) Deprecated. Get the MemoryCalculatorPlugin from the class name and configure it.
abstract long	getPhysicalMemorySize() Deprecated. Obtain the total size of the physical memory present in the system.
abstract long	getVirtualMemorySize() Deprecated. Obtain the total size of the virtual memory present in the system.

Methods inherited from class org.apache.hadoop.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

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

Constructor Detail

MemoryCalculatorPlugin

public MemoryCalculatorPlugin()

Deprecated.

Method Detail

getVirtualMemorySize

public abstract long getVirtualMemorySize()

Deprecated.

Obtain the total size of the virtual memory present in the system.

Returns:

virtual memory size in bytes.

getPhysicalMemorySize

public abstract long getPhysicalMemorySize()

Deprecated.

Obtain the total size of the physical memory present in the system.

Returns:

physical memory size bytes.

getMemoryCalculatorPlugin

public static MemoryCalculatorPlugin getMemoryCalculatorPlugin(Class<? extends MemoryCalculatorPlugin> clazz,
                                                               Configuration conf)

Deprecated.

Get the MemoryCalculatorPlugin from the class name and configure it. If class name is null, this method will try and return a memory calculator plugin available for this system.

Parameters:

clazz - class-name

conf - configure the plugin with this.

Returns:

MemoryCalculatorPlugin