Package org.apache.hadoop.lib.service

Interface Instrumentation

All Known Implementing Classes:

InstrumentationService

@Private
public interface Instrumentation

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	Instrumentation.Cron
static interface	Instrumentation.Variable<T>

Method Summary

Modifier and Type	Method	Description
void	addCron(String group, String name, Instrumentation.Cron cron)
void	addSampler(String group, String name, int samplingSize, Instrumentation.Variable<Long> variable)
void	addVariable(String group, String name, Instrumentation.Variable<?> variable)
Instrumentation.Cron	createCron()
Map<String,Map<String,?>>	getSnapshot()
void	incr(String group, String name, long count)

Method Details

createCron

Instrumentation.Cron createCron()

incr

void incr(String group,
 String name,
 long count)

addCron

void addCron(String group,
 String name,
 Instrumentation.Cron cron)

addVariable

void addVariable(String group,
 String name,
 Instrumentation.Variable<?> variable)

addSampler

void addSampler(String group,
 String name,
 int samplingSize,
 Instrumentation.Variable<Long> variable)

getSnapshot

Map<String,Map<String,?>> getSnapshot()