Package org.apache.hadoop.hdfs.server.protocol

Class DataNodeUsageReportUtil

java.lang.Object

org.apache.hadoop.hdfs.server.protocol.DataNodeUsageReportUtil

@Private
@Unstable
public final class DataNodeUsageReportUtil
extends java.lang.Object

This class is helper class to generate a live usage report by calculating the delta between current DataNode usage metrics and the usage metrics captured at the time of the last report.

Constructor Summary

Constructors

Constructor	Description
DataNodeUsageReportUtil()

Method Summary

Modifier and Type	Method	Description
DataNodeUsageReport	getUsageReport(long bWritten, long bRead, long wTime, long rTime, long wBlockOp, long rBlockOp, long timeSinceLastReport)

Methods inherited from class java.lang.Object

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

Constructor Detail

DataNodeUsageReportUtil

public DataNodeUsageReportUtil()

Method Detail

getUsageReport

public DataNodeUsageReport getUsageReport(long bWritten,
                                          long bRead,
                                          long wTime,
                                          long rTime,
                                          long wBlockOp,
                                          long rBlockOp,
                                          long timeSinceLastReport)