Package org.apache.hadoop.hbase.regionserver

Interface MetricsTableAggregateSource

All Superinterfaces:

BaseSource

All Known Implementing Classes:

MetricsTableAggregateSourceImpl

@Private
public interface MetricsTableAggregateSource
extends BaseSource

This interface will be implemented by a MetricsSource that will export metrics from multiple regions of a table 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
static final String	NUM_TABLES
static final String	NUMBER_OF_TABLES_DESC

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

HBASE_METRICS_SYSTEM_NAME

Method Summary

Modifier and Type	Method	Description
void	deleteTableSource(String table)	Remove a table's source.
MetricsTableSource	getOrCreateTableSource(String table, MetricsTableWrapperAggregate wrapper)	Returns MetricsTableSource registered for the table.

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

NUM_TABLES

static final String NUM_TABLES

See Also:

• Constant Field Values

NUMBER_OF_TABLES_DESC

static final String NUMBER_OF_TABLES_DESC

See Also:

• Constant Field Values

Method Details

getOrCreateTableSource

MetricsTableSource getOrCreateTableSource(String table,
 MetricsTableWrapperAggregate wrapper)

Returns MetricsTableSource registered for the table. Creates one if not defined.

Parameters:

table - The table name

deleteTableSource

void deleteTableSource(String table)

Remove a table's source. This is called when regions of a table are closed.

Parameters:

table - The table name