Package org.apache.hadoop.hbase.regionserver

Interface MetricsRegionAggregateSource

All Superinterfaces:

BaseSource

All Known Implementing Classes:

MetricsRegionAggregateSourceImpl

@Private
public interface MetricsRegionAggregateSource
extends BaseSource

This interface will be implemented by a MetricsSource that will export metrics from multiple regions into the hadoop metrics system.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	METRICS_CONTEXT	The name of the metrics context that metrics will be under.
static final String	METRICS_DESCRIPTION	Description
static final String	METRICS_JMX_CONTEXT	The name of the metrics context that metrics will be under in jmx
static final String	METRICS_NAME	The name of the metrics

Fields inherited from interface org.apache.hadoop.hbase.metrics.BaseSource

HBASE_METRICS_SYSTEM_NAME

Method Summary

Modifier and Type	Method	Description
void	deregister(MetricsRegionSource source)	Remove a region's source.
void	register(MetricsRegionSource source)	Register a MetricsRegionSource as being open.

Methods inherited from interface org.apache.hadoop.hbase.metrics.BaseSource

decGauge, getMetricRegistryInfo, getMetricsContext, getMetricsDescription, getMetricsJmxContext, getMetricsName, incCounters, incGauge, init, removeMetric, setGauge, updateHistogram

Field Details

METRICS_NAME

static final String METRICS_NAME

The name of the metrics

See Also:

• Constant Field Values

METRICS_CONTEXT

static final String METRICS_CONTEXT

The name of the metrics context that metrics will be under.

See Also:

• Constant Field Values

METRICS_DESCRIPTION

static final String METRICS_DESCRIPTION

Description

See Also:

• Constant Field Values

METRICS_JMX_CONTEXT

static final String METRICS_JMX_CONTEXT

The name of the metrics context that metrics will be under in jmx

See Also:

• Constant Field Values

Method Details

register

void register(MetricsRegionSource source)

Register a MetricsRegionSource as being open.

Parameters:

source - the source for the region being opened.

deregister

void deregister(MetricsRegionSource source)

Remove a region's source. This is called when a region is closed.

Parameters:

source - The region to remove.