org.apache.hadoop.metrics2
Interface MetricsSystemMXBean

All Known Subinterfaces:

MetricsSystem

All Known Implementing Classes:

DefaultMetricsSystem, MetricsSystemImpl

public interface MetricsSystemMXBean

The JMX interface to the metrics system

Method Summary

String	currentConfig()
void	refreshMBeans() Force a refresh of MBeans
void	start() Start the metrics system
void	stop() Stop the metrics system

Method Detail

start

void start()

Start the metrics system

Throws:

MetricsException

stop

void stop()

Stop the metrics system

Throws:

MetricsException

refreshMBeans

void refreshMBeans()

Force a refresh of MBeans

Throws:

MetricsException

currentConfig

String currentConfig()

Returns:

the current config Note, avoid getConfig, as it'll turn it into an attribute, which doesn't support multiple lines in the values.

Throws:

MetricsException