Package org.apache.hadoop.metrics2.sink.ganglia

Class GangliaSink30

java.lang.Object

org.apache.hadoop.metrics2.sink.ganglia.AbstractGangliaSink

org.apache.hadoop.metrics2.sink.ganglia.GangliaSink30

All Implemented Interfaces:

MetricsPlugin, MetricsSink

Direct Known Subclasses:

GangliaSink31

public class GangliaSink30
extends AbstractGangliaSink

This code supports Ganglia 3.0

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.metrics2.sink.ganglia.AbstractGangliaSink

AbstractGangliaSink.GangliaConfType, AbstractGangliaSink.GangliaSlope

Field Summary

Fields

Modifier and Type	Field	Description
final org.slf4j.Logger	LOG

Fields inherited from class org.apache.hadoop.metrics2.sink.ganglia.AbstractGangliaSink

BUFFER_SIZE, DEFAULT_DMAX, DEFAULT_MULTICAST_ENABLED, DEFAULT_MULTICAST_TTL, DEFAULT_PORT, DEFAULT_SLOPE, DEFAULT_TMAX, DEFAULT_UNITS, EQUAL, gangliaMetricVisitor, MULTICAST_ENABLED_PROPERTY, MULTICAST_TTL_PROPERTY, SERVERS_PROPERTY, SUPPORT_SPARSE_METRICS_DEFAULT, SUPPORT_SPARSE_METRICS_PROPERTY

Constructor Summary

Constructors

Constructor	Description
GangliaSink30()

Method Summary

Modifier and Type	Method	Description
void	appendPrefix(MetricsRecord record, StringBuilder sb)
protected void	emitMetric(String groupName, String name, String type, String value, org.apache.hadoop.metrics2.sink.ganglia.GangliaConf gConf, AbstractGangliaSink.GangliaSlope gSlope)	The method sends metrics to Ganglia servers.
void	init(org.apache.commons.configuration2.SubsetConfiguration conf)	Initialize the plugin
void	putMetrics(MetricsRecord record)	Put a metrics record in the sink

Methods inherited from class org.apache.hadoop.metrics2.sink.ganglia.AbstractGangliaSink

emitToGangliaHosts, flush, getGangliaConfForMetric, getHostName, getMetricsServers, isSupportSparseMetrics, xdr_int, xdr_string

Methods inherited from class java.lang.Object

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

Field Details

LOG

public final org.slf4j.Logger LOG

Constructor Details

GangliaSink30

public GangliaSink30()

Method Details

init

public void init(org.apache.commons.configuration2.SubsetConfiguration conf)

Description copied from interface: MetricsPlugin

Initialize the plugin

Specified by:

init in interface MetricsPlugin

Overrides:

init in class AbstractGangliaSink

Parameters:

conf - the configuration object for the plugin

appendPrefix

@Private
public void appendPrefix(MetricsRecord record,
 StringBuilder sb)

putMetrics

public void putMetrics(MetricsRecord record)

Description copied from interface: MetricsSink

Put a metrics record in the sink

Parameters:

record - the record to put

emitMetric

protected void emitMetric(String groupName,
 String name,
 String type,
 String value,
 org.apache.hadoop.metrics2.sink.ganglia.GangliaConf gConf,
 AbstractGangliaSink.GangliaSlope gSlope)
                   throws IOException

The method sends metrics to Ganglia servers. The method has been taken from org.apache.hadoop.metrics.ganglia.GangliaContext30 with minimal changes in order to keep it in sync.

Parameters:

groupName - The group name of the metric

name - The metric name

type - The type of the metric

value - The value of the metric

gConf - The GangliaConf for this metric

gSlope - The slope for this metric

Throws:

IOException - raised on errors performing I/O.