接口的使用
org.apache.flink.metrics.Metric

使用Metric的程序包

程序包	说明
org.apache.flink.metrics
org.apache.flink.metrics.reporter

org.apache.flink.metrics中Metric的使用

org.apache.flink.metrics中Metric的子接口

限定符和类型	接口和说明
interface	Counter A Counter is a Metric that measures a count.
interface	Gauge<T> A Gauge is a Metric that calculates a specific value at a point in time.
interface	Histogram Histogram interface to be used with Flink's metrics system.
interface	Meter Metric for measuring throughput.

实现Metric的org.apache.flink.metrics中的类

限定符和类型	类和说明
class	MeterView A MeterView provides an average rate of events per second over a given time period.
class	SimpleCounter A simple low-overhead Counter that is not thread-safe.

org.apache.flink.metrics.reporter中Metric的使用

参数类型为Metric的org.apache.flink.metrics.reporter中的方法

限定符和类型	方法和说明
void	MetricReporter.notifyOfAddedMetric(Metric metric, String metricName, MetricGroup group) Called when a new Metric was added.
void	AbstractReporter.notifyOfAddedMetric(Metric metric, String metricName, MetricGroup group)
void	MetricReporter.notifyOfRemovedMetric(Metric metric, String metricName, MetricGroup group) Called when a Metric was should be removed.
void	AbstractReporter.notifyOfRemovedMetric(Metric metric, String metricName, MetricGroup group)