@Private @Unstable

Package org.apache.hadoop.yarn.server.resourcemanager.metrics

Package org.apache.hadoop.yarn.server.resourcemanager.metrics contains classes related to publishing app/container events to ATS.

Interface Summary

Interface	Description
SystemMetricsPublisher	Interface used to publish app/container events to timelineservice.

Class Summary

Class	Description
AbstractSystemMetricsPublisher	Abstract implementation of SystemMetricsPublisher which is then extended by metrics publisher implementations depending on timeline service version.
AbstractSystemMetricsPublisher.MultiThreadedDispatcher	Dispatches ATS related events using multiple threads.
AbstractSystemMetricsPublisher.TimelinePublishEvent	TimelinePublishEvent's hash code should be based on application's id this will ensure all the events related to a particular app goes to particular thread of MultiThreaded dispatcher.
CombinedSystemMetricsPublisher	A metrics publisher that can publish for a collection of publishers.
NoOpSystemMetricPublisher	This class does nothing when any of the methods are invoked on SystemMetricsPublisher.
TimelineServiceV1Publisher	This class is responsible for posting application, appattempt & Container lifecycle related events to timeline service v1.
TimelineServiceV2Publisher	This class is responsible for posting application, appattempt & Container lifecycle related events to timeline service v2.

Enum Summary

Enum	Description
AbstractSystemMetricsPublisher.SystemMetricsEventType	EventType which is used while publishing the events.