org.apache.slider.server.appmaster.management

Class MetricsBindingService

java.lang.Object

org.apache.hadoop.service.AbstractService

org.apache.hadoop.service.CompositeService

org.apache.slider.server.appmaster.management.MetricsBindingService

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.hadoop.service.Service, MetricsKeys

public class MetricsBindingService
extends org.apache.hadoop.service.CompositeService
implements MetricsKeys

YARN service which hooks up Codahale metrics to JMX, and, if enabled Ganglia and/or an SLF4J log.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.service.CompositeService

org.apache.hadoop.service.CompositeService.CompositeServiceShutdownHook

Nested classes/interfaces inherited from interface org.apache.hadoop.service.Service

org.apache.hadoop.service.Service.STATE

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.slf4j.Logger	log

Fields inherited from class org.apache.hadoop.service.CompositeService

STOP_ONLY_STARTED_SERVICES

Fields inherited from interface org.apache.slider.server.appmaster.management.MetricsKeys

DEFAULT_GANGLIA_PORT, METRICS_DEFAULT_LOG, METRICS_DEFAULT_LOG_INTERVAL, METRICS_GANGLIA_ENABLED, METRICS_GANGLIA_HOST, METRICS_GANGLIA_PORT, METRICS_GANGLIA_REPORT_INTERVAL, METRICS_GANGLIA_VERSION_31, METRICS_LOGGING_ENABLED, METRICS_LOGGING_LOG, METRICS_LOGGING_LOG_INTERVAL, METRICS_PREFIX

Constructor Summary

Constructors

Constructor and Description
MetricsBindingService(String name) Instantiate...create a metric registry in the process
MetricsBindingService(String name, com.codahale.metrics.MetricRegistry metrics)

Method Summary

Methods

Modifier and Type	Method and Description
com.codahale.metrics.MetricRegistry	getMetrics() Accessor for the metrics instance
protected void	serviceStart()
String	toString()

Methods inherited from class org.apache.hadoop.service.CompositeService

addIfService, addService, getServices, removeService, serviceInit, serviceStop

Methods inherited from class org.apache.hadoop.service.AbstractService

close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, noteFailure, putBlocker, registerGlobalListener, registerServiceListener, removeBlocker, setConfig, start, stop, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop

Methods inherited from class java.lang.Object

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

Field Detail

log

protected static final org.slf4j.Logger log

Constructor Detail

MetricsBindingService

public MetricsBindingService(String name,
                     com.codahale.metrics.MetricRegistry metrics)

MetricsBindingService

public MetricsBindingService(String name)

Instantiate...create a metric registry in the process

Parameters:

name - service name

Method Detail

getMetrics

public com.codahale.metrics.MetricRegistry getMetrics()

Accessor for the metrics instance

Returns:

the metrics

serviceStart

protected void serviceStart()
                     throws Exception

Overrides:

serviceStart in class org.apache.hadoop.service.CompositeService

Throws:

Exception

toString

public String toString()

Overrides:

toString in class org.apache.hadoop.service.AbstractService