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

Class SlowPeerReports

java.lang.Object

org.apache.hadoop.hdfs.server.protocol.SlowPeerReports

@Private
@Unstable
public final class SlowPeerReports
extends Object

A class that allows a DataNode to communicate information about all its peer DataNodes that appear to be slow. The wire representation of this structure is a list of SlowPeerReportProto messages.

Field Summary

Fields

Modifier and Type	Field	Description
static final SlowPeerReports	EMPTY_REPORT	An object representing a SlowPeerReports with no entries.

Method Summary

Modifier and Type	Method	Description
static SlowPeerReports	create(Map<String,OutlierMetrics> slowPeers)
boolean	equals(Object o)	Return true if the two objects represent the same set slow peer entries.
Map<String,OutlierMetrics>	getSlowPeers()
int	hashCode()
boolean	haveSlowPeers()

Methods inherited from class java.lang.Object

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

Field Details

EMPTY_REPORT

public static final SlowPeerReports EMPTY_REPORT

An object representing a SlowPeerReports with no entries. Should be used instead of null or creating new objects when there are no slow peers to report.

Method Details

create

public static SlowPeerReports create(@Nullable
 Map<String,OutlierMetrics> slowPeers)

getSlowPeers

public Map<String,OutlierMetrics> getSlowPeers()

haveSlowPeers

public boolean haveSlowPeers()

equals

public boolean equals(Object o)

Return true if the two objects represent the same set slow peer entries. Primarily for unit testing convenience.

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object