Public

This method walks a tree of CSQueue and clones the portion of the state relevant
for preemption in T

cloneQueues

This method selects and tracks containers to be preemptionCandidates. If a
container is in the targe

containerBasedPreemptOrKill

init

logToCSV

Compare by reversed priority order first, and then reversed containerId order

sortContainers

<init>

Given a set of queues compute the fix-point distribution of unassigned resources
among them. As pend

computeFixpointAllocation

This method computes (for a single level in the tree, passed as a List) the
ideal assignment of reso

computeIdealResourceDistribution

editSchedule

Based a resource preemption target drop reservations of containers and if
necessary select container

getContainersToPreempt

getMostUnderservedQueues

This method returns all non labeled resources.

getNonLabeledResources

getResourceCalculator

Checking if given container is a labeled container

isLabeledContainer

As more resources are needed for preemption, saved AMContainers has to be
rescanned. Such AMContaine

preemptAMContainers

Given a target preemption for a specific application, select containers to
preempt (after unreservin

preemptFrom

This method recursively computes the ideal assignment of resources to each level
of the hierarchy. T

recursivelyComputeIdealAssignment

Computes a normalizedGuaranteed capacity based on active queues

resetCapacity

setNodeLabels

addTempQueuePartition

ArrayList

Creating JSON documents from java classes using gson

A Window object is a top-level window with no borders and no menubar. The
default layout for a windo

java.awt.Window

java.awt.image.Kernel

This exception is thrown when a program attempts to create an URL from an
incorrect specification.

java.net.MalformedURLException

Formats and parses dates in a locale-sensitive manner. Formatting turns a Date
into a String, and pa

java.text.SimpleDateFormat

javax.imageio.ImageIO

javax.swing.JOptionPane

notifyDataSetChanged

addToBackStack

getResourceAsStream

/**
   * Given a set of queues compute the fix-point distribution of unassigned
   * resources among them. As pending request of a queue are exhausted, the
   * queue is removed from the set and remaining capacity redistributed among
   * remaining queues. The distribution is weighted based on guaranteed
   * capacity, unless asked to ignoreGuarantee, in which case resources are
   * distributed uniformly.
   */

// Prior to assigning the unused resources, process each queue as follows:

// If current > guaranteed, idealAssigned = guaranteed + untouchable extra

// Subtract idealAssigned resources from unassigned.

// If the queue has all of its needs met (that is, if 

// idealAssigned >= current + pending), remove it from consideration.

// Sort queues from most under-guaranteed to most over-guaranteed.

// If idealAssigned < (current + pending), q needs more resources, so

// add it to the list of underserved queues, ordered by need.

//assign all cluster resources until no more demand, or no resources are left

// we compute normalizedGuarantees capacity based on currently active

// For each underserved queue (or set of queues if multiple are equally

// underserved), offer its share of the unassigned resources based on its

// normalized guarantee. After the offer, if the queue is not satisfied,

// place it back in the ordered list of queues, recalculating its place

// in the order of most under-guaranteed to most over-guaranteed. In this

// way, the most underserved queue(s) are always given resources first.

// The queue is still asking for more. Put it back in the priority

// queue, recalculating its order based on need.

How to use getMostUnderservedQueuesmethodin org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.ProportionalCapacityPreemptionPolicy

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How to use
getMostUnderservedQueues
method
in
org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.ProportionalCapacityPreemptionPolicy