Package org.apache.flink.runtime.metrics.groups

Class InternalCacheMetricGroup

java.lang.Object

org.apache.flink.runtime.metrics.groups.ProxyMetricGroup<org.apache.flink.metrics.MetricGroup>

org.apache.flink.runtime.metrics.groups.InternalCacheMetricGroup

All Implemented Interfaces:

org.apache.flink.metrics.groups.CacheMetricGroup, org.apache.flink.metrics.MetricGroup

@Internal
public class InternalCacheMetricGroup
extends ProxyMetricGroup<org.apache.flink.metrics.MetricGroup>
implements org.apache.flink.metrics.groups.CacheMetricGroup

A CacheMetricGroup which register all cache related metrics under a subgroup of the parent metric group.

Field Summary

Fields

Modifier and Type	Field	Description
static final long	UNINITIALIZED

Fields inherited from class org.apache.flink.runtime.metrics.groups.ProxyMetricGroup

parentMetricGroup

Constructor Summary

Constructors

Constructor	Description
InternalCacheMetricGroup(org.apache.flink.metrics.MetricGroup parentMetricGroup, String subGroupName)	Creates a subgroup with the specified subgroup name under the parent group.

Method Summary

Modifier and Type	Method	Description
void	hitCounter(org.apache.flink.metrics.Counter hitCounter)
void	latestLoadTimeGauge(org.apache.flink.metrics.Gauge<Long> latestLoadTimeGauge)
void	loadCounter(org.apache.flink.metrics.Counter loadCounter)
void	missCounter(org.apache.flink.metrics.Counter missCounter)
void	numCachedBytesGauge(org.apache.flink.metrics.Gauge<Long> numCachedBytesGauge)
void	numCachedRecordsGauge(org.apache.flink.metrics.Gauge<Long> numCachedRecordsGauge)
void	numLoadFailuresCounter(org.apache.flink.metrics.Counter numLoadFailuresCounter)

Methods inherited from class org.apache.flink.runtime.metrics.groups.ProxyMetricGroup

addGroup, addGroup, addSpan, counter, counter, gauge, getAllVariables, getMetricIdentifier, getMetricIdentifier, getScopeComponents, histogram, meter

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.MetricGroup

addGroup, addGroup, addGroup, addSpan, counter, counter, counter, counter, gauge, gauge, getAllVariables, getMetricIdentifier, getMetricIdentifier, getScopeComponents, histogram, histogram, meter, meter

Field Details

UNINITIALIZED

public static final long UNINITIALIZED

See Also:

• Constant Field Values

Constructor Details

InternalCacheMetricGroup

public InternalCacheMetricGroup(org.apache.flink.metrics.MetricGroup parentMetricGroup,
 String subGroupName)

Creates a subgroup with the specified subgroup name under the parent group. Metrics will be registered under the new created subgroup.

For example the hit counter will be registered as "root.cache.hitCount", with parentMetricGroup = root and subGroupName = "cache".

Parameters:

parentMetricGroup - parent metric group of the subgroup

subGroupName - name of the subgroup

Method Details

hitCounter

public void hitCounter(org.apache.flink.metrics.Counter hitCounter)

Specified by:

hitCounter in interface org.apache.flink.metrics.groups.CacheMetricGroup

missCounter

public void missCounter(org.apache.flink.metrics.Counter missCounter)

Specified by:

missCounter in interface org.apache.flink.metrics.groups.CacheMetricGroup

loadCounter

public void loadCounter(org.apache.flink.metrics.Counter loadCounter)

Specified by:

loadCounter in interface org.apache.flink.metrics.groups.CacheMetricGroup

numLoadFailuresCounter

public void numLoadFailuresCounter(org.apache.flink.metrics.Counter numLoadFailuresCounter)

Specified by:

numLoadFailuresCounter in interface org.apache.flink.metrics.groups.CacheMetricGroup

latestLoadTimeGauge

public void latestLoadTimeGauge(org.apache.flink.metrics.Gauge<Long> latestLoadTimeGauge)

Specified by:

latestLoadTimeGauge in interface org.apache.flink.metrics.groups.CacheMetricGroup

numCachedRecordsGauge

public void numCachedRecordsGauge(org.apache.flink.metrics.Gauge<Long> numCachedRecordsGauge)

Specified by:

numCachedRecordsGauge in interface org.apache.flink.metrics.groups.CacheMetricGroup

numCachedBytesGauge

public void numCachedBytesGauge(org.apache.flink.metrics.Gauge<Long> numCachedBytesGauge)

Specified by:

numCachedBytesGauge in interface org.apache.flink.metrics.groups.CacheMetricGroup