Package org.apache.drill.exec.metrics

Class DrillMetrics

java.lang.Object

org.apache.drill.exec.metrics.DrillMetrics

public final class DrillMetrics
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final boolean	METRICS_JMX_OUTPUT_ENABLED
static final boolean	METRICS_LOG_OUTPUT_ENABLED
static final int	METRICS_LOG_OUTPUT_INTERVAL

Method Summary

Modifier and Type	Method	Description
static com.codahale.metrics.MetricRegistry	getRegistry()
static <T extends com.codahale.metrics.Metric> void	register(String name, T metric)	Note: For counters, histograms, meters and timers, use get or create methods on the registry (e.g.
static void	resetMetrics()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

METRICS_JMX_OUTPUT_ENABLED

public static final boolean METRICS_JMX_OUTPUT_ENABLED

METRICS_LOG_OUTPUT_ENABLED

public static final boolean METRICS_LOG_OUTPUT_ENABLED

METRICS_LOG_OUTPUT_INTERVAL

public static final int METRICS_LOG_OUTPUT_INTERVAL

Method Details

register

public static <T extends com.codahale.metrics.Metric>
void register(String name,
 T metric)

Note: For counters, histograms, meters and timers, use get or create methods on the registry (e.g. MetricRegistry.counter(java.lang.String)). For gauges or custom metric implementations use this method. The registry does not allow registering multiple metrics with the same name, which is a problem when multiple drillbits are started in the same JVM (e.g. unit tests).

Type Parameters:

T - metric type

Parameters:

name - metric name

metric - metric instance

getRegistry

public static com.codahale.metrics.MetricRegistry getRegistry()

resetMetrics

public static void resetMetrics()