Metric class that allows metric visitors to visit it to get its information.
A MetricsRegistry allows its users to create new
A MetricsReporter is the interface that different metrics sinks, such as JMX, implement to receive metrics from the Samza framework and Samza jobs.
A ReadableMetricsRegistry is a
A counter is a
A Gauge is a
A MetricsVisitor can be used to process each metric in a