org.apache.hadoop.hive.ql.exec.repl

Class ReplStatsTracker

java.lang.Object

org.apache.hadoop.hive.ql.exec.repl.ReplStatsTracker

Direct Known Subclasses:

NoOpReplStatsTracker

public class ReplStatsTracker
extends Object

Tracks the replication statistics per event type.

Field Summary

Fields

Modifier and Type	Field and Description
static int	RM_PROGRESS_LENGTH
static int	TOP_K_MAX

Constructor Summary

Constructors

Constructor and Description
ReplStatsTracker(int k)

Method Summary

Modifier and Type	Method and Description
void	addEntry(String eventType, String eventId, long timeTaken) Adds an entry for tracking.
ConcurrentHashMap<String,org.apache.commons.math3.stat.descriptive.DescriptiveStatistics>	getDescMap() Get the DescriptiveStatistics for each event type.
int	getK()
String	getLastEventId() Gets the last event id processed.
ConcurrentHashMap<String,org.apache.commons.collections4.map.ListOrderedMap<Long,Long>>	getTopKEvents() Gets the top K costliest event per event type.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

RM_PROGRESS_LENGTH

public static int RM_PROGRESS_LENGTH

TOP_K_MAX

public static int TOP_K_MAX

Constructor Detail

ReplStatsTracker

public ReplStatsTracker(int k)

Method Detail

addEntry

public void addEntry(String eventType,
                     String eventId,
                     long timeTaken)

Adds an entry for tracking.

Parameters:

eventType - the type of event.

eventId - the event id.

timeTaken - time taken to process the event.

getDescMap

public ConcurrentHashMap<String,org.apache.commons.math3.stat.descriptive.DescriptiveStatistics> getDescMap()

Get the DescriptiveStatistics for each event type.

Returns:

A HashMap, with key as event type & value as the DescriptiveAnalytics of the entire run.

getTopKEvents

public ConcurrentHashMap<String,org.apache.commons.collections4.map.ListOrderedMap<Long,Long>> getTopKEvents()

Gets the top K costliest event per event type.

Returns:

A HashMap with key as the event type and a Map as values, which has the event id as key and time taken as values.

getLastEventId

public String getLastEventId()

Gets the last event id processed.

Returns:

the last event id.

getK

public int getK()

toString

public String toString()

Overrides:

toString in class Object