org.apache.hadoop.metrics.ganglia
Class GangliaContext31

java.lang.Object
  org.apache.hadoop.metrics.spi.AbstractMetricsContext
      org.apache.hadoop.metrics.ganglia.GangliaContext
          org.apache.hadoop.metrics.ganglia.GangliaContext31

All Implemented Interfaces:

MetricsContext

public class GangliaContext31
extends GangliaContext

Context for sending metrics to Ganglia version 3.1.x. 3.1.1 has a slightly different wire portal compared to 3.0.x.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.metrics.spi.AbstractMetricsContext

AbstractMetricsContext.MetricMap, AbstractMetricsContext.TagMap

Field Summary

Fields inherited from class org.apache.hadoop.metrics.ganglia.GangliaContext

buffer, datagramSocket, metricsServers, offset

Fields inherited from interface org.apache.hadoop.metrics.MetricsContext

DEFAULT_PERIOD

Constructor Summary

GangliaContext31()

Method Summary

protected void	emitMetric(String name, String type, String value)
void	init(String contextName, ContextFactory factory) Initializes the context.

Methods inherited from class org.apache.hadoop.metrics.ganglia.GangliaContext

emitRecord, getDmax, getSlope, getTmax, getUnits, xdr_int, xdr_string

Methods inherited from class org.apache.hadoop.metrics.spi.AbstractMetricsContext

close, createRecord, flush, getAllRecords, getAttribute, getAttributeTable, getContextFactory, getContextName, getPeriod, isMonitoring, newRecord, parseAndSetPeriod, registerUpdater, remove, setPeriod, startMonitoring, stopMonitoring, unregisterUpdater, update

Methods inherited from class java.lang.Object

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

Constructor Detail

GangliaContext31

public GangliaContext31()

Method Detail

init

public void init(String contextName,
                 ContextFactory factory)

Description copied from class: AbstractMetricsContext

Initializes the context.

Specified by:

init in interface MetricsContext

Overrides:

init in class GangliaContext

Parameters:

contextName - The given name for this context

factory - The creator of this context

emitMetric

protected void emitMetric(String name,
                          String type,
                          String value)
                   throws IOException

Overrides:

emitMetric in class GangliaContext

Throws:

IOException