org.apache.flink.runtime.executiongraph.metrics

Class DownTimeGauge

java.lang.Object

org.apache.flink.runtime.executiongraph.metrics.DownTimeGauge

All Implemented Interfaces:

Gauge<Long>, Metric

public class DownTimeGauge
extends Object
implements Gauge<Long>

A gauge that returns (in milliseconds) how long a job has not been not running any more, in case it is in a failing/recovering situation. Running jobs return naturally a value of zero.

For jobs that have never run (new not yet scheduled jobs) or jobs that have run again after failing, this gauge returns , and for jobs that are not running any more, it returns .

Field Summary

Fields

Modifier and Type	Field and Description
static String	METRIC_NAME

Constructor Summary

Constructors

Constructor and Description
DownTimeGauge(JobStatusProvider jobStatusProvider)

Method Summary

Modifier and Type	Method and Description
Long	getValue() Calculates and returns the measured value.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.metrics.Gauge

getMetricType

Field Detail

METRIC_NAME

public static final String METRIC_NAME

See Also:

Constant Field Values

Constructor Detail

DownTimeGauge

public DownTimeGauge(JobStatusProvider jobStatusProvider)

Method Detail

getValue

public Long getValue()

Description copied from interface: Gauge

Calculates and returns the measured value.

Specified by:

getValue in interface Gauge<Long>

Returns:

calculated value