org.apache.oozie.service

Class MetricsInstrumentationService

java.lang.Object

org.apache.oozie.service.InstrumentationService

org.apache.oozie.service.MetricsInstrumentationService

All Implemented Interfaces:

Service

public class MetricsInstrumentationService
extends InstrumentationService

This service provides an Instrumentation instance mostly compatible with the original Instrumentation, but backed by Codahale Metrics.

This service depends on the SchedulerService.

The InstrumentationService.CONF_LOGGING_INTERVAL configuration property indicates how often snapshots of the instrumentation should be logged.

Field Summary

Fields inherited from class org.apache.oozie.service.InstrumentationService

CONF_LOGGING_INTERVAL, CONF_PREFIX, instrumentation

Fields inherited from interface org.apache.oozie.service.Service

DEFAULT_LOCK_TIMEOUT, lockTimeout

Constructor Summary

Constructors

Constructor and Description
MetricsInstrumentationService()

Method Summary

Methods

Modifier and Type	Method and Description
void	destroy() Destroy the metrics instrumentation service.
void	init(Services services) Initialize the metrics instrumentation service.
static boolean	isEnabled() Returns if the MetricsInstrumentationService is enabled or not.

Methods inherited from class org.apache.oozie.service.InstrumentationService

get, getInterface, initLogging, mapToString

Methods inherited from class java.lang.Object

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

Constructor Detail

MetricsInstrumentationService

public MetricsInstrumentationService()

Method Detail

init

public void init(Services services)
          throws ServiceException

Initialize the metrics instrumentation service.

Specified by:

init in interface Service

Overrides:

init in class InstrumentationService

Parameters:

services - services instance.

Throws:

ServiceException

destroy

public void destroy()

Destroy the metrics instrumentation service.

Specified by:

destroy in interface Service

Overrides:

destroy in class InstrumentationService

isEnabled

public static boolean isEnabled()

Returns if the MetricsInstrumentationService is enabled or not.

Returns:

true if the MetricsInstrumentationService is enabled; false if not