org.apache.flink.runtime.metrics.dump

类 MetricDumpSerialization.MetricSerializationResult

java.lang.Object

org.apache.flink.runtime.metrics.dump.MetricDumpSerialization.MetricSerializationResult

所有已实现的接口:

Serializable

封闭类:

MetricDumpSerialization

public static class MetricDumpSerialization.MetricSerializationResult
extends Object
implements Serializable

This class encapsulates all serialized metrics and a count for each metric type.

The counts are stored separately from the metrics since the final count for any given type can only be determined after all metrics of that type were serialized. Storing them together in a single byte[] would require an additional copy of all serialized metrics, as you would first have to serialize the metrics into a temporary buffer to calculate the counts, write the counts to the final output and copy all metrics from the temporary buffer.

Note that while one could implement the serialization in such a way so that at least 1 byte (a validity flag) is written for each metric, this would require more bandwidth due to the sheer number of metrics.

另请参阅:

序列化表格

字段概要

字段

限定符和类型	字段和说明
int	numCounters
int	numGauges
int	numHistograms
int	numMeters
byte[]	serializedCounters
byte[]	serializedGauges
byte[]	serializedHistograms
byte[]	serializedMeters

构造器概要

构造器

构造器和说明
MetricSerializationResult(byte[] serializedCounters, byte[] serializedGauges, byte[] serializedMeters, byte[] serializedHistograms, int numCounters, int numGauges, int numMeters, int numHistograms)

方法概要

从类继承的方法 java.lang.Object

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

字段详细资料

serializedCounters

public final byte[] serializedCounters

serializedGauges

public final byte[] serializedGauges

serializedMeters

public final byte[] serializedMeters

serializedHistograms

public final byte[] serializedHistograms

numCounters

public final int numCounters

numGauges

public final int numGauges

numMeters

public final int numMeters

numHistograms

public final int numHistograms

构造器详细资料

MetricSerializationResult

public MetricSerializationResult(byte[] serializedCounters,
                                 byte[] serializedGauges,
                                 byte[] serializedMeters,
                                 byte[] serializedHistograms,
                                 int numCounters,
                                 int numGauges,
                                 int numMeters,
                                 int numHistograms)