| Class | Description | 
|---|---|
| AppAddedSchedulerEvent | |
| AppAttemptAddedSchedulerEvent | |
| AppAttemptRemovedSchedulerEvent | |
| AppRemovedSchedulerEvent | |
| ContainerExpiredSchedulerEvent | The  SchedulerEventwhich notifies that aContainerIdhas expired, sent byContainerAllocationExpirer | 
| ContainerPreemptEvent | Simple event class used to communicate kill reserved containers, mark
 containers for preemption and kill already preemption-marked containers. | 
| NodeAddedSchedulerEvent | |
| NodeAttributesUpdateSchedulerEvent | Event handler class for Node Attributes which sends events to Scheduler. | 
| NodeLabelsUpdateSchedulerEvent | |
| NodeRemovedSchedulerEvent | |
| NodeResourceUpdateSchedulerEvent | |
| NodeUpdateSchedulerEvent | |
| QueueManagementChangeEvent | Event to update scheduler of any queue management changes | 
| ReleaseContainerEvent | Event used to release a container. | 
| SchedulerEvent | 
| Enum | Description | 
|---|---|
| SchedulerEventType | 
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