org.apache.cassandra.metrics
Class CacheMetrics

java.lang.Object
  org.apache.cassandra.metrics.CacheMetrics

public class CacheMetrics
extends java.lang.Object

Metrics for ICache.

Field Summary

com.yammer.metrics.core.Gauge<java.lang.Long>	capacity Cache capacity in bytes
com.yammer.metrics.core.Gauge<java.lang.Integer>	entries Total number of cache entries
static java.lang.String	GROUP_NAME
com.yammer.metrics.core.Gauge<java.lang.Double>	hitRate cache hit rate
com.yammer.metrics.core.Meter	hits Total number of cache hits
com.yammer.metrics.core.Meter	requests Total number of cache requests
com.yammer.metrics.core.Gauge<java.lang.Long>	size Total size of cache, in bytes
static java.lang.String	TYPE_NAME

Constructor Summary

CacheMetrics(java.lang.String type, ICache cache)
Create metrics for given cache.

Method Summary

double

getRecentHitRate() Deprecated.

Methods inherited from class java.lang.Object

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

Field Detail

GROUP_NAME

public static final java.lang.String GROUP_NAME

See Also:

Constant Field Values

TYPE_NAME

public static final java.lang.String TYPE_NAME

See Also:

Constant Field Values

capacity

public final com.yammer.metrics.core.Gauge<java.lang.Long> capacity

Cache capacity in bytes

hits

public final com.yammer.metrics.core.Meter hits

Total number of cache hits

requests

public final com.yammer.metrics.core.Meter requests

Total number of cache requests

hitRate

public final com.yammer.metrics.core.Gauge<java.lang.Double> hitRate

cache hit rate

size

public final com.yammer.metrics.core.Gauge<java.lang.Long> size

Total size of cache, in bytes

entries

public final com.yammer.metrics.core.Gauge<java.lang.Integer> entries

Total number of cache entries

Constructor Detail

CacheMetrics

public CacheMetrics(java.lang.String type,
                    ICache cache)

Create metrics for given cache.

Parameters:

type - Type of Cache to identify metrics.

cache - Cache to measure metrics

Method Detail

getRecentHitRate

@Deprecated
public double getRecentHitRate()

Deprecated.