| Package | Description | 
|---|---|
| org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint.algorithm | Package org.apache.hadoop.yarn.server.resourcemanager.scheduler.placement
 contains classes related to scheduling containers using placement
 constraints. | 
| org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint.api | This Package contains classes related to constrained placement of
 Requests. | 
| org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint.processor | Package o.a.h.yarn.server.resourcemanager.scheduler.constraint.processor
 contains classes related to scheduling containers using placement
 processor. | 
| Class and Description | 
|---|
| ConstraintPlacementAlgorithm Marker interface for a Constraint Placement. | 
| ConstraintPlacementAlgorithmInput This encapsulates an input to the Constraint Placement Algorithm. | 
| ConstraintPlacementAlgorithmOutputCollector The ConstraintPlacementAlgorithm uses the
 ConstraintPlacementAlgorithmOutputCollector to collect any output it
 spits out. | 
| Class and Description | 
|---|
| ConstraintPlacementAlgorithmInput This encapsulates an input to the Constraint Placement Algorithm. | 
| ConstraintPlacementAlgorithmOutput Encapsulates the output of the ConstraintPlacementAlgorithm. | 
| ConstraintPlacementAlgorithmOutputCollector The ConstraintPlacementAlgorithm uses the
 ConstraintPlacementAlgorithmOutputCollector to collect any output it
 spits out. | 
| PlacedSchedulingRequest Class to encapsulate a Placed scheduling Request. | 
| SchedulingRequestWithPlacementAttempt Simple holder class encapsulating a SchedulingRequest
 with a placement attempt. | 
| Class and Description | 
|---|
| ConstraintPlacementAlgorithmInput This encapsulates an input to the Constraint Placement Algorithm. | 
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