Package org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.policy

Interface QueueOrderingPolicy

All Known Implementing Classes:

PriorityUtilizationQueueOrderingPolicy

public interface QueueOrderingPolicy

This will be used by ParentQueue to decide allocation ordering of child queues.

Method Summary

Modifier and Type	Method	Description
java.util.Iterator<CSQueue>	getAssignmentIterator(java.lang.String partition)	Return an iterator over the collection of CSQueues which orders them for container assignment.
java.lang.String	getConfigName()	Returns configuration name (which will be used to set ordering policy
void	setQueues(java.util.List<CSQueue> queues)

Method Detail

setQueues

void setQueues(java.util.List<CSQueue> queues)

getAssignmentIterator

java.util.Iterator<CSQueue> getAssignmentIterator(java.lang.String partition)

Return an iterator over the collection of CSQueues which orders them for container assignment. Please note that, to avoid queue's set updated during sorting / iterating. Caller need to make sure parent queue's read lock is properly acquired.

Parameters:

partition - nodePartition

Returns:

iterator of queues to allocate

getConfigName

java.lang.String getConfigName()

Returns configuration name (which will be used to set ordering policy

Returns:

configuration name