org.apache.hadoop.metrics2

Interface MetricsSystemMXBean

All Known Implementing Classes:

MetricsSystem

@InterfaceAudience.Public
 @InterfaceStability.Evolving
public interface MetricsSystemMXBean

The JMX interface to the metrics system

Method Summary

Modifier and Type	Method and Description
String	currentConfig()
void	start() Start the metrics system
void	startMetricsMBeans() Start metrics MBeans
void	stop() Stop the metrics system
void	stopMetricsMBeans() Stop metrics MBeans.

Method Detail

start

void start()

Start the metrics system

Throws:

MetricsException - Metrics Exception.

stop

void stop()

Stop the metrics system

Throws:

MetricsException - Metrics Exception.

startMetricsMBeans

void startMetricsMBeans()

Start metrics MBeans

Throws:

MetricsException - Metrics Exception.

stopMetricsMBeans

void stopMetricsMBeans()

Stop metrics MBeans. Note, it doesn't stop the metrics system control MBean, i.e this interface.

Throws:

MetricsException - Metrics Exception.

currentConfig

String currentConfig()

Returns:

the current config Avoided getConfig, as it'll turn into a "Config" attribute, which doesn't support multiple line values in jconsole.

Throws:

MetricsException - Metrics Exception.