Package org.apache.hadoop.hdfs.server.datanode.fsdataset.impl

Class ReservedSpaceCalculator

java.lang.Object

org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.ReservedSpaceCalculator

Direct Known Subclasses:

ReservedSpaceCalculator.ReservedSpaceCalculatorAbsolute, ReservedSpaceCalculator.ReservedSpaceCalculatorAggressive, ReservedSpaceCalculator.ReservedSpaceCalculatorConservative, ReservedSpaceCalculator.ReservedSpaceCalculatorPercentage

public abstract class ReservedSpaceCalculator
extends java.lang.Object

Used for calculating file system space reserved for non-HDFS data.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ReservedSpaceCalculator.Builder	Used for creating instances of ReservedSpaceCalculator.
static class	ReservedSpaceCalculator.ReservedSpaceCalculatorAbsolute	Based on absolute number of reserved bytes.
static class	ReservedSpaceCalculator.ReservedSpaceCalculatorAggressive	Calculates absolute and percentage based reserved space and picks the one that will yield less reserved space.
static class	ReservedSpaceCalculator.ReservedSpaceCalculatorConservative	Calculates absolute and percentage based reserved space and picks the one that will yield more reserved space.
static class	ReservedSpaceCalculator.ReservedSpaceCalculatorPercentage	Based on percentage of total capacity in the storage.

Method Summary

Methods inherited from class java.lang.Object

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