MetricsSystemMXBean (Apache Hadoop Main 3.5.0 API)

All Known Implementing Classes:: MetricsSystem

@Public @Evolving public interface MetricsSystemMXBean

The JMX interface to the metrics system

Method Summary

Modifier and Type

Method

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 Details
- 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.