org.apache.cassandra.metrics

Class BufferPoolMetrics

java.lang.Object

org.apache.cassandra.metrics.BufferPoolMetrics

public class BufferPoolMetrics
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
com.codahale.metrics.Meter	hits Total number of hits
com.codahale.metrics.Meter	misses Total number of misses
com.codahale.metrics.Gauge<java.lang.Long>	overflowSize Total size, in bytes, of direct or heap buffers allocated by the pool but not part of the pool either because they are too large to fit or because the pool has exceeded its maximum limit or because it's on-heap allocation.
com.codahale.metrics.Gauge<java.lang.Long>	size Total size of buffer pools, in bytes, including overflow allocation
com.codahale.metrics.Gauge<java.lang.Long>	usedSize Total size, in bytes, of active buffered being used from the pool currently + overflow

Constructor Summary

Constructors

Constructor and Description
BufferPoolMetrics(java.lang.String scope, BufferPool bufferPool)

Method Summary

Modifier and Type	Method and Description
void	register3xAlias() used to register alias for 3.0/3.11 compatibility

Methods inherited from class java.lang.Object

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

Field Detail

hits

public final com.codahale.metrics.Meter hits

Total number of hits

misses

public final com.codahale.metrics.Meter misses

Total number of misses

size

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

Total size of buffer pools, in bytes, including overflow allocation

usedSize

public final com.codahale.metrics.Gauge<java.lang.Long> usedSize

Total size, in bytes, of active buffered being used from the pool currently + overflow

overflowSize

public final com.codahale.metrics.Gauge<java.lang.Long> overflowSize

Total size, in bytes, of direct or heap buffers allocated by the pool but not part of the pool either because they are too large to fit or because the pool has exceeded its maximum limit or because it's on-heap allocation.

Constructor Detail

BufferPoolMetrics

public BufferPoolMetrics(java.lang.String scope,
                         BufferPool bufferPool)

Method Detail

register3xAlias

public void register3xAlias()

used to register alias for 3.0/3.11 compatibility