YARN-2998. Abstract out scheduler independent PlanFollower components. (Anubhav Dhoot via kasha)

(cherry picked from commit e7257acd8a)
This commit is contained in:
Karthik Kambatla 2014-12-30 19:52:43 -08:00
parent cde5bfe3ec
commit 798ab51289
11 changed files with 755 additions and 450 deletions

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@ -84,6 +84,7 @@ import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoSchedule
import org.apache.hadoop.yarn.sls.SLSRunner;
import org.apache.hadoop.yarn.sls.conf.SLSConfiguration;
import org.apache.hadoop.yarn.sls.web.SLSWebApp;
import org.apache.hadoop.yarn.util.resource.ResourceCalculator;
import org.apache.hadoop.yarn.util.resource.Resources;
import org.apache.log4j.Logger;
@ -867,6 +868,11 @@ public class ResourceSchedulerWrapper
return scheduler.getMaximumResourceCapability();
}
@Override
public ResourceCalculator getResourceCalculator() {
return scheduler.getResourceCalculator();
}
@Override
public int getNumClusterNodes() {
return scheduler.getNumClusterNodes();

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@ -38,6 +38,7 @@ Release 2.7.0 - UNRELEASED
YARN-2738. [YARN-2574] Add FairReservationSystem for FairScheduler.
(Anubhav Dhoot via kasha)
IMPROVEMENTS
YARN-2950. Change message to mandate, not suggest JS requirement on UI.
@ -125,6 +126,10 @@ Release 2.7.0 - UNRELEASED
YARN-2943. Added node-labels page on RM web UI. (Wangda Tan via jianhe)
YARN-2998. Abstract out scheduler independent PlanFollower components.
(Anubhav Dhoot via kasha)
OPTIMIZATIONS
BUG FIXES

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@ -0,0 +1,412 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.yarn.server.resourcemanager.reservation;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.ReservationId;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.server.resourcemanager.reservation.exceptions.PlanningException;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.Queue;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.YarnScheduler;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.PlanQueue;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.QueueEntitlement;
import org.apache.hadoop.yarn.util.Clock;
import org.apache.hadoop.yarn.util.resource.Resources;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
public abstract class AbstractSchedulerPlanFollower implements PlanFollower {
private static final Logger LOG = LoggerFactory
.getLogger(CapacitySchedulerPlanFollower.class);
protected Collection<Plan> plans = new ArrayList<Plan>();
protected YarnScheduler scheduler;
protected Clock clock;
@Override
public void init(Clock clock, ResourceScheduler sched, Collection<Plan> plans) {
this.clock = clock;
this.scheduler = sched;
this.plans.addAll(plans);
}
@Override
public synchronized void run() {
for (Plan plan : plans) {
synchronizePlan(plan);
}
}
@Override
public synchronized void setPlans(Collection<Plan> plans) {
this.plans.clear();
this.plans.addAll(plans);
}
@Override
public synchronized void synchronizePlan(Plan plan) {
String planQueueName = plan.getQueueName();
if (LOG.isDebugEnabled()) {
LOG.debug("Running plan follower edit policy for plan: " + planQueueName);
}
// align with plan step
long step = plan.getStep();
long now = clock.getTime();
if (now % step != 0) {
now += step - (now % step);
}
Queue planQueue = getPlanQueue(planQueueName);
if (planQueue == null) return;
// first we publish to the plan the current availability of resources
Resource clusterResources = scheduler.getClusterResource();
Resource planResources = getPlanResources(plan, planQueue,
clusterResources);
Set<ReservationAllocation> currentReservations =
plan.getReservationsAtTime(now);
Set<String> curReservationNames = new HashSet<String>();
Resource reservedResources = Resource.newInstance(0, 0);
int numRes = getReservedResources(now, currentReservations,
curReservationNames, reservedResources);
// create the default reservation queue if it doesnt exist
String defReservationId = getReservationIdFromQueueName(planQueueName) +
PlanQueue.DEFAULT_QUEUE_SUFFIX;
String defReservationQueue = getReservationQueueName(planQueueName,
defReservationId);
createDefaultReservationQueue(planQueueName, planQueue,
defReservationId);
curReservationNames.add(defReservationId);
// if the resources dedicated to this plan has shrunk invoke replanner
if (arePlanResourcesLessThanReservations(clusterResources, planResources,
reservedResources)) {
try {
plan.getReplanner().plan(plan, null);
} catch (PlanningException e) {
LOG.warn("Exception while trying to replan: {}", planQueueName, e);
}
}
// identify the reservations that have expired and new reservations that
// have to be activated
List<? extends Queue> resQueues = getChildReservationQueues(planQueue);
Set<String> expired = new HashSet<String>();
for (Queue resQueue : resQueues) {
String resQueueName = resQueue.getQueueName();
String reservationId = getReservationIdFromQueueName(resQueueName);
if (curReservationNames.contains(reservationId)) {
// it is already existing reservation, so needed not create new
// reservation queue
curReservationNames.remove(reservationId);
} else {
// the reservation has termination, mark for cleanup
expired.add(reservationId);
}
}
// garbage collect expired reservations
cleanupExpiredQueues(planQueueName, plan.getMoveOnExpiry(), expired,
defReservationQueue);
// Add new reservations and update existing ones
float totalAssignedCapacity = 0f;
if (currentReservations != null) {
// first release all excess capacity in default queue
try {
setQueueEntitlement(planQueueName, defReservationQueue, 0f, 1.0f);
} catch (YarnException e) {
LOG.warn(
"Exception while trying to release default queue capacity for plan: {}",
planQueueName, e);
}
// sort allocations from the one giving up the most resources, to the
// one asking for the most
// avoid order-of-operation errors that temporarily violate 100%
// capacity bound
List<ReservationAllocation> sortedAllocations =
sortByDelta(
new ArrayList<ReservationAllocation>(currentReservations), now,
plan);
for (ReservationAllocation res : sortedAllocations) {
String currResId = res.getReservationId().toString();
if (curReservationNames.contains(currResId)) {
addReservationQueue(planQueueName, planQueue, currResId);
}
Resource capToAssign = res.getResourcesAtTime(now);
float targetCapacity = 0f;
if (planResources.getMemory() > 0
&& planResources.getVirtualCores() > 0) {
targetCapacity =
calculateReservationToPlanRatio(clusterResources,
planResources,
capToAssign);
}
if (LOG.isDebugEnabled()) {
LOG.debug(
"Assigning capacity of {} to queue {} with target capacity {}",
capToAssign, currResId, targetCapacity);
}
// set maxCapacity to 100% unless the job requires gang, in which
// case we stick to capacity (as running early/before is likely a
// waste of resources)
float maxCapacity = 1.0f;
if (res.containsGangs()) {
maxCapacity = targetCapacity;
}
try {
setQueueEntitlement(planQueueName, currResId, targetCapacity, maxCapacity);
} catch (YarnException e) {
LOG.warn("Exception while trying to size reservation for plan: {}",
currResId, planQueueName, e);
}
totalAssignedCapacity += targetCapacity;
}
}
// compute the default queue capacity
float defQCap = 1.0f - totalAssignedCapacity;
if (LOG.isDebugEnabled()) {
LOG.debug("PlanFollowerEditPolicyTask: total Plan Capacity: {} "
+ "currReservation: {} default-queue capacity: {}", planResources,
numRes, defQCap);
}
// set the default queue to eat-up all remaining capacity
try {
setQueueEntitlement(planQueueName, defReservationQueue, defQCap, 1.0f);
} catch (YarnException e) {
LOG.warn(
"Exception while trying to reclaim default queue capacity for plan: {}",
planQueueName, e);
}
// garbage collect finished reservations from plan
try {
plan.archiveCompletedReservations(now);
} catch (PlanningException e) {
LOG.error("Exception in archiving completed reservations: ", e);
}
LOG.info("Finished iteration of plan follower edit policy for plan: "
+ planQueueName);
// Extension: update plan with app states,
// useful to support smart replanning
}
protected String getReservationIdFromQueueName(String resQueueName) {
return resQueueName;
}
protected void setQueueEntitlement(String planQueueName, String currResId,
float targetCapacity,
float maxCapacity) throws YarnException {
String reservationQueueName = getReservationQueueName(planQueueName,
currResId);
scheduler.setEntitlement(reservationQueueName, new QueueEntitlement(
targetCapacity, maxCapacity));
}
// Schedulers have different ways of naming queues. See YARN-2773
protected String getReservationQueueName(String planQueueName,
String reservationId) {
return reservationId;
}
/**
* First sets entitlement of queues to zero to prevent new app submission.
* Then move all apps in the set of queues to the parent plan queue's default
* reservation queue if move is enabled. Finally cleanups the queue by killing
* any apps (if move is disabled or move failed) and removing the queue
*/
protected void cleanupExpiredQueues(String planQueueName,
boolean shouldMove, Set<String> toRemove, String defReservationQueue) {
for (String expiredReservationId : toRemove) {
try {
// reduce entitlement to 0
String expiredReservation = getReservationQueueName(planQueueName,
expiredReservationId);
setQueueEntitlement(planQueueName, expiredReservation, 0.0f, 0.0f);
if (shouldMove) {
moveAppsInQueueSync(expiredReservation, defReservationQueue);
}
if (scheduler.getAppsInQueue(expiredReservation).size() > 0) {
scheduler.killAllAppsInQueue(expiredReservation);
LOG.info("Killing applications in queue: {}", expiredReservation);
} else {
scheduler.removeQueue(expiredReservation);
LOG.info("Queue: " + expiredReservation + " removed");
}
} catch (YarnException e) {
LOG.warn("Exception while trying to expire reservation: {}",
expiredReservationId, e);
}
}
}
/**
* Move all apps in the set of queues to the parent plan queue's default
* reservation queue in a synchronous fashion
*/
private void moveAppsInQueueSync(String expiredReservation,
String defReservationQueue) {
List<ApplicationAttemptId> activeApps =
scheduler.getAppsInQueue(expiredReservation);
if (activeApps.isEmpty()) {
return;
}
for (ApplicationAttemptId app : activeApps) {
// fallback to parent's default queue
try {
scheduler.moveApplication(app.getApplicationId(), defReservationQueue);
} catch (YarnException e) {
LOG.warn(
"Encountered unexpected error during migration of application: {}" +
" from reservation: {}",
app, expiredReservation, e);
}
}
}
protected int getReservedResources(long now, Set<ReservationAllocation>
currentReservations, Set<String> curReservationNames,
Resource reservedResources) {
int numRes = 0;
if (currentReservations != null) {
numRes = currentReservations.size();
for (ReservationAllocation reservation : currentReservations) {
curReservationNames.add(reservation.getReservationId().toString());
Resources.addTo(reservedResources, reservation.getResourcesAtTime(now));
}
}
return numRes;
}
/**
* Sort in the order from the least new amount of resources asked (likely
* negative) to the highest. This prevents "order-of-operation" errors related
* to exceeding 100% capacity temporarily.
*/
protected List<ReservationAllocation> sortByDelta(
List<ReservationAllocation> currentReservations, long now, Plan plan) {
Collections.sort(currentReservations, new ReservationAllocationComparator(
now, this, plan));
return currentReservations;
}
/**
* Get queue associated with reservable queue named
* @param planQueueName Name of the reservable queue
* @return queue associated with the reservable queue
*/
protected abstract Queue getPlanQueue(String planQueueName);
/**
* Calculates ratio of reservationResources to planResources
*/
protected abstract float calculateReservationToPlanRatio(
Resource clusterResources, Resource planResources,
Resource reservationResources);
/**
* Check if plan resources are less than expected reservation resources
*/
protected abstract boolean arePlanResourcesLessThanReservations(
Resource clusterResources, Resource planResources,
Resource reservedResources);
/**
* Get a list of reservation queues for this planQueue
*/
protected abstract List<? extends Queue> getChildReservationQueues(
Queue planQueue);
/**
* Add a new reservation queue for reservation currResId for this planQueue
*/
protected abstract void addReservationQueue(
String planQueueName, Queue queue, String currResId);
/**
* Creates the default reservation queue for use when no reservation is
* used for applications submitted to this planQueue
*/
protected abstract void createDefaultReservationQueue(
String planQueueName, Queue queue, String defReservationQueue);
/**
* Get plan resources for this planQueue
*/
protected abstract Resource getPlanResources(
Plan plan, Queue queue, Resource clusterResources);
/**
* Get reservation queue resources if it exists otherwise return null
*/
protected abstract Resource getReservationQueueResourceIfExists(Plan plan,
ReservationId reservationId);
private static class ReservationAllocationComparator implements
Comparator<ReservationAllocation> {
AbstractSchedulerPlanFollower planFollower;
long now;
Plan plan;
ReservationAllocationComparator(long now,
AbstractSchedulerPlanFollower planFollower, Plan plan) {
this.now = now;
this.planFollower = planFollower;
this.plan = plan;
}
private Resource getUnallocatedReservedResources(
ReservationAllocation reservation) {
Resource resResource;
Resource reservationResource = planFollower
.getReservationQueueResourceIfExists
(plan, reservation.getReservationId());
if (reservationResource != null) {
resResource =
Resources.subtract(
reservation.getResourcesAtTime(now),
reservationResource);
} else {
resResource = reservation.getResourcesAtTime(now);
}
return resResource;
}
@Override
public int compare(ReservationAllocation lhs, ReservationAllocation rhs) {
// compute delta between current and previous reservation, and compare
// based on that
Resource lhsRes = getUnallocatedReservedResources(lhs);
Resource rhsRes = getUnallocatedReservedResources(rhs);
return lhsRes.compareTo(rhsRes);
}
}
}

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@ -19,26 +19,19 @@
package org.apache.hadoop.yarn.server.resourcemanager.reservation;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.ReservationId;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
import org.apache.hadoop.yarn.server.resourcemanager.reservation.exceptions.PlanningException;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.Queue;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerDynamicEditException;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CSQueue;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.PlanQueue;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ReservationQueue;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.QueueEntitlement;
import org.apache.hadoop.yarn.util.Clock;
import org.apache.hadoop.yarn.util.resource.Resources;
import org.slf4j.Logger;
@ -58,319 +51,119 @@ import org.slf4j.LoggerFactory;
* differences among existing queues). This makes it resilient to frequency of
* synchronization, and RM restart issues (no "catch up" is necessary).
*/
public class CapacitySchedulerPlanFollower implements PlanFollower {
public class CapacitySchedulerPlanFollower extends AbstractSchedulerPlanFollower {
private static final Logger LOG = LoggerFactory
.getLogger(CapacitySchedulerPlanFollower.class);
private Collection<Plan> plans = new ArrayList<Plan>();
private Clock clock;
private CapacityScheduler scheduler;
private CapacityScheduler cs;
@Override
public void init(Clock clock, ResourceScheduler sched, Collection<Plan> plans) {
super.init(clock, sched, plans);
LOG.info("Initializing Plan Follower Policy:"
+ this.getClass().getCanonicalName());
if (!(sched instanceof CapacityScheduler)) {
throw new YarnRuntimeException(
"CapacitySchedulerPlanFollower can only work with CapacityScheduler");
}
this.clock = clock;
this.scheduler = (CapacityScheduler) sched;
this.plans.addAll(plans);
this.cs = (CapacityScheduler) sched;
}
@Override
public synchronized void run() {
for (Plan plan : plans) {
synchronizePlan(plan);
}
}
@Override
public synchronized void synchronizePlan(Plan plan) {
String planQueueName = plan.getQueueName();
if (LOG.isDebugEnabled()) {
LOG.debug("Running plan follower edit policy for plan: " + planQueueName);
}
// align with plan step
long step = plan.getStep();
long now = clock.getTime();
if (now % step != 0) {
now += step - (now % step);
}
CSQueue queue = scheduler.getQueue(planQueueName);
protected Queue getPlanQueue(String planQueueName) {
CSQueue queue = cs.getQueue(planQueueName);
if (!(queue instanceof PlanQueue)) {
LOG.error("The Plan is not an PlanQueue!");
return;
return null;
}
return queue;
}
@Override
protected float calculateReservationToPlanRatio(
Resource clusterResources, Resource planResources,
Resource reservationResources) {
return Resources.divide(cs.getResourceCalculator(),
clusterResources, reservationResources, planResources);
}
@Override
protected boolean arePlanResourcesLessThanReservations(
Resource clusterResources, Resource planResources,
Resource reservedResources) {
return Resources.greaterThan(cs.getResourceCalculator(),
clusterResources, reservedResources, planResources);
}
@Override
protected List<? extends Queue> getChildReservationQueues(Queue queue) {
PlanQueue planQueue = (PlanQueue)queue;
List<CSQueue> childQueues = planQueue.getChildQueues();
return childQueues;
}
@Override
protected void addReservationQueue(
String planQueueName, Queue queue, String currResId) {
PlanQueue planQueue = (PlanQueue)queue;
try {
ReservationQueue resQueue =
new ReservationQueue(cs, currResId, planQueue);
cs.addQueue(resQueue);
} catch (SchedulerDynamicEditException e) {
LOG.warn(
"Exception while trying to activate reservation: {} for plan: {}",
currResId, planQueueName, e);
} catch (IOException e) {
LOG.warn(
"Exception while trying to activate reservation: {} for plan: {}",
currResId, planQueueName, e);
}
}
@Override
protected void createDefaultReservationQueue(
String planQueueName, Queue queue, String defReservationId) {
PlanQueue planQueue = (PlanQueue)queue;
if (cs.getQueue(defReservationId) == null) {
try {
ReservationQueue defQueue =
new ReservationQueue(cs, defReservationId, planQueue);
cs.addQueue(defQueue);
} catch (SchedulerDynamicEditException e) {
LOG.warn(
"Exception while trying to create default reservation queue for plan: {}",
planQueueName, e);
} catch (IOException e) {
LOG.warn(
"Exception while trying to create default reservation queue for " +
"plan: {}",
planQueueName, e);
}
}
}
@Override
protected Resource getPlanResources(
Plan plan, Queue queue, Resource clusterResources) {
PlanQueue planQueue = (PlanQueue)queue;
// first we publish to the plan the current availability of resources
Resource clusterResources = scheduler.getClusterResource();
float planAbsCap = planQueue.getAbsoluteCapacity();
Resource planResources = Resources.multiply(clusterResources, planAbsCap);
plan.setTotalCapacity(planResources);
Set<ReservationAllocation> currentReservations =
plan.getReservationsAtTime(now);
Set<String> curReservationNames = new HashSet<String>();
Resource reservedResources = Resource.newInstance(0, 0);
int numRes = 0;
if (currentReservations != null) {
numRes = currentReservations.size();
for (ReservationAllocation reservation : currentReservations) {
curReservationNames.add(reservation.getReservationId().toString());
Resources.addTo(reservedResources, reservation.getResourcesAtTime(now));
}
}
// create the default reservation queue if it doesnt exist
String defReservationQueue = planQueueName + PlanQueue.DEFAULT_QUEUE_SUFFIX;
if (scheduler.getQueue(defReservationQueue) == null) {
try {
ReservationQueue defQueue =
new ReservationQueue(scheduler, defReservationQueue, planQueue);
scheduler.addQueue(defQueue);
} catch (SchedulerDynamicEditException e) {
LOG.warn(
"Exception while trying to create default reservation queue for plan: {}",
planQueueName, e);
} catch (IOException e) {
LOG.warn(
"Exception while trying to create default reservation queue for plan: {}",
planQueueName, e);
}
}
curReservationNames.add(defReservationQueue);
// if the resources dedicated to this plan has shrunk invoke replanner
if (Resources.greaterThan(scheduler.getResourceCalculator(),
clusterResources, reservedResources, planResources)) {
try {
plan.getReplanner().plan(plan, null);
} catch (PlanningException e) {
LOG.warn("Exception while trying to replan: {}", planQueueName, e);
}
}
// identify the reservations that have expired and new reservations that
// have to be activated
List<CSQueue> resQueues = planQueue.getChildQueues();
Set<String> expired = new HashSet<String>();
for (CSQueue resQueue : resQueues) {
String resQueueName = resQueue.getQueueName();
if (curReservationNames.contains(resQueueName)) {
// it is already existing reservation, so needed not create new
// reservation queue
curReservationNames.remove(resQueueName);
} else {
// the reservation has termination, mark for cleanup
expired.add(resQueueName);
}
}
// garbage collect expired reservations
cleanupExpiredQueues(plan.getMoveOnExpiry(), expired, defReservationQueue);
// Add new reservations and update existing ones
float totalAssignedCapacity = 0f;
if (currentReservations != null) {
// first release all excess capacity in default queue
try {
scheduler.setEntitlement(defReservationQueue, new QueueEntitlement(0f,
1.0f));
} catch (YarnException e) {
LOG.warn(
"Exception while trying to release default queue capacity for plan: {}",
planQueueName, e);
}
// sort allocations from the one giving up the most resources, to the
// one asking for the most
// avoid order-of-operation errors that temporarily violate 100%
// capacity bound
List<ReservationAllocation> sortedAllocations =
sortByDelta(
new ArrayList<ReservationAllocation>(currentReservations), now);
for (ReservationAllocation res : sortedAllocations) {
String currResId = res.getReservationId().toString();
if (curReservationNames.contains(currResId)) {
try {
ReservationQueue resQueue =
new ReservationQueue(scheduler, currResId, planQueue);
scheduler.addQueue(resQueue);
} catch (SchedulerDynamicEditException e) {
LOG.warn(
"Exception while trying to activate reservation: {} for plan: {}",
currResId, planQueueName, e);
} catch (IOException e) {
LOG.warn(
"Exception while trying to activate reservation: {} for plan: {}",
currResId, planQueueName, e);
}
}
Resource capToAssign = res.getResourcesAtTime(now);
float targetCapacity = 0f;
if (planResources.getMemory() > 0
&& planResources.getVirtualCores() > 0) {
targetCapacity =
Resources.divide(scheduler.getResourceCalculator(),
clusterResources, capToAssign, planResources);
}
if (LOG.isDebugEnabled()) {
LOG.debug(
"Assigning capacity of {} to queue {} with target capacity {}",
capToAssign, currResId, targetCapacity);
}
// set maxCapacity to 100% unless the job requires gang, in which
// case we stick to capacity (as running early/before is likely a
// waste of resources)
float maxCapacity = 1.0f;
if (res.containsGangs()) {
maxCapacity = targetCapacity;
}
try {
scheduler.setEntitlement(currResId, new QueueEntitlement(
targetCapacity, maxCapacity));
} catch (YarnException e) {
LOG.warn("Exception while trying to size reservation for plan: {}",
currResId, planQueueName, e);
}
totalAssignedCapacity += targetCapacity;
}
}
// compute the default queue capacity
float defQCap = 1.0f - totalAssignedCapacity;
if (LOG.isDebugEnabled()) {
LOG.debug("PlanFollowerEditPolicyTask: total Plan Capacity: {} "
+ "currReservation: {} default-queue capacity: {}", planResources,
numRes, defQCap);
}
// set the default queue to eat-up all remaining capacity
try {
scheduler.setEntitlement(defReservationQueue, new QueueEntitlement(
defQCap, 1.0f));
} catch (YarnException e) {
LOG.warn(
"Exception while trying to reclaim default queue capacity for plan: {}",
planQueueName, e);
}
// garbage collect finished reservations from plan
try {
plan.archiveCompletedReservations(now);
} catch (PlanningException e) {
LOG.error("Exception in archiving completed reservations: ", e);
}
LOG.info("Finished iteration of plan follower edit policy for plan: "
+ planQueueName);
// Extension: update plan with app states,
// useful to support smart replanning
}
/**
* Move all apps in the set of queues to the parent plan queue's default
* reservation queue in a synchronous fashion
*/
private void moveAppsInQueueSync(String expiredReservation,
String defReservationQueue) {
List<ApplicationAttemptId> activeApps =
scheduler.getAppsInQueue(expiredReservation);
if (activeApps.isEmpty()) {
return;
}
for (ApplicationAttemptId app : activeApps) {
// fallback to parent's default queue
try {
scheduler.moveApplication(app.getApplicationId(), defReservationQueue);
} catch (YarnException e) {
LOG.warn(
"Encountered unexpected error during migration of application: {} from reservation: {}",
app, expiredReservation, e);
}
}
}
/**
* First sets entitlement of queues to zero to prevent new app submission.
* Then move all apps in the set of queues to the parent plan queue's default
* reservation queue if move is enabled. Finally cleanups the queue by killing
* any apps (if move is disabled or move failed) and removing the queue
*/
private void cleanupExpiredQueues(boolean shouldMove, Set<String> toRemove,
String defReservationQueue) {
for (String expiredReservation : toRemove) {
try {
// reduce entitlement to 0
scheduler.setEntitlement(expiredReservation, new QueueEntitlement(0.0f,
0.0f));
if (shouldMove) {
moveAppsInQueueSync(expiredReservation, defReservationQueue);
}
if (scheduler.getAppsInQueue(expiredReservation).size() > 0) {
scheduler.killAllAppsInQueue(expiredReservation);
LOG.info("Killing applications in queue: {}", expiredReservation);
} else {
scheduler.removeQueue(expiredReservation);
LOG.info("Queue: " + expiredReservation + " removed");
}
} catch (YarnException e) {
LOG.warn("Exception while trying to expire reservation: {}",
expiredReservation, e);
}
}
return planResources;
}
@Override
public synchronized void setPlans(Collection<Plan> plans) {
this.plans.clear();
this.plans.addAll(plans);
}
/**
* Sort in the order from the least new amount of resources asked (likely
* negative) to the highest. This prevents "order-of-operation" errors related
* to exceeding 100% capacity temporarily.
*/
private List<ReservationAllocation> sortByDelta(
List<ReservationAllocation> currentReservations, long now) {
Collections.sort(currentReservations, new ReservationAllocationComparator(
scheduler, now));
return currentReservations;
}
private static class ReservationAllocationComparator implements
Comparator<ReservationAllocation> {
CapacityScheduler scheduler;
long now;
ReservationAllocationComparator(CapacityScheduler scheduler, long now) {
this.scheduler = scheduler;
this.now = now;
}
private Resource getUnallocatedReservedResources(
ReservationAllocation reservation) {
Resource resResource;
CSQueue resQueue =
scheduler.getQueue(reservation.getReservationId().toString());
protected Resource getReservationQueueResourceIfExists(Plan plan,
ReservationId reservationId) {
CSQueue resQueue = cs.getQueue(reservationId.toString());
Resource reservationResource = null;
if (resQueue != null) {
resResource =
Resources.subtract(
reservation.getResourcesAtTime(now),
Resources.multiply(scheduler.getClusterResource(),
resQueue.getAbsoluteCapacity()));
} else {
resResource = reservation.getResourcesAtTime(now);
reservationResource = Resources.multiply(cs.getClusterResource(),
resQueue.getAbsoluteCapacity());
}
return resResource;
}
@Override
public int compare(ReservationAllocation lhs, ReservationAllocation rhs) {
// compute delta between current and previous reservation, and compare
// based on that
Resource lhsRes = getUnallocatedReservedResources(lhs);
Resource rhsRes = getUnallocatedReservedResources(rhs);
return lhsRes.compareTo(rhsRes);
}
return reservationResource;
}
}

View File

@ -45,6 +45,7 @@ import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.QueueEntitlement;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.SchedulerEvent;
import org.apache.hadoop.yarn.proto.YarnServiceProtos.SchedulerResourceTypes;
import org.apache.hadoop.yarn.util.resource.ResourceCalculator;
/**
* This interface is used by the components to talk to the
@ -98,6 +99,10 @@ public interface YarnScheduler extends EventHandler<SchedulerEvent> {
@Stable
public Resource getMaximumResourceCapability();
@LimitedPrivate("yarn")
@Evolving
ResourceCalculator getResourceCalculator();
/**
* Get the number of nodes available in the cluster.
* @return the number of available nodes.

View File

@ -544,9 +544,9 @@ public class FSLeafQueue extends FSQueue {
}
private boolean isStarved(Resource share) {
Resource desiredShare = Resources.min(FairScheduler.getResourceCalculator(),
Resource desiredShare = Resources.min(scheduler.getResourceCalculator(),
scheduler.getClusterResource(), share, getDemand());
return Resources.lessThan(FairScheduler.getResourceCalculator(),
return Resources.lessThan(scheduler.getResourceCalculator(),
scheduler.getClusterResource(), getResourceUsage(), desiredShare);
}
}

View File

@ -1094,7 +1094,8 @@ public class FairScheduler extends
return super.getApplicationAttempt(appAttemptId);
}
public static ResourceCalculator getResourceCalculator() {
@Override
public ResourceCalculator getResourceCalculator() {
return RESOURCE_CALCULATOR;
}

View File

@ -919,6 +919,11 @@ public class FifoScheduler extends
return DEFAULT_QUEUE.getQueueUserAclInfo(null);
}
@Override
public ResourceCalculator getResourceCalculator() {
return resourceCalculator;
}
private synchronized void addNode(RMNode nodeManager) {
FiCaSchedulerNode schedulerNode = new FiCaSchedulerNode(nodeManager,
usePortForNodeName);

View File

@ -104,7 +104,7 @@ public class ReservationSystemTestUtil {
.assertTrue(newPlan.getSharingPolicy() instanceof CapacityOverTimePolicy);
}
static void setupFSAllocationFile(String allocationFile)
public static void setupFSAllocationFile(String allocationFile)
throws IOException {
PrintWriter out = new PrintWriter(new FileWriter(allocationFile));
out.println("<?xml version=\"1.0\"?>");
@ -130,7 +130,7 @@ public class ReservationSystemTestUtil {
out.close();
}
static void updateFSAllocationFile(String allocationFile)
public static void updateFSAllocationFile(String allocationFile)
throws IOException {
PrintWriter out = new PrintWriter(new FileWriter(allocationFile));
out.println("<?xml version=\"1.0\"?>");

View File

@ -33,25 +33,20 @@ import org.apache.hadoop.security.AccessControlException;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.ReservationId;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
import org.apache.hadoop.yarn.server.resourcemanager.reservation.exceptions.PlanningException;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptState;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.Queue;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CSQueue;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerConfiguration;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerContext;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.PlanQueue;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.TestUtils;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.AppAddedSchedulerEvent;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.AppAttemptAddedSchedulerEvent;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.AppAttemptRemovedSchedulerEvent;
import org.apache.hadoop.yarn.server.resourcemanager.security.RMContainerTokenSecretManager;
import org.apache.hadoop.yarn.server.security.ApplicationACLsManager;
import org.apache.hadoop.yarn.util.Clock;
import org.apache.hadoop.yarn.util.resource.DefaultResourceCalculator;
import org.apache.hadoop.yarn.util.resource.ResourceCalculator;
import org.apache.hadoop.yarn.util.resource.Resources;
import org.junit.After;
import org.junit.Assert;
@ -62,21 +57,12 @@ import org.junit.rules.TestName;
import org.mockito.Matchers;
import org.mockito.Mockito;
public class TestCapacitySchedulerPlanFollower {
public class TestCapacitySchedulerPlanFollower extends TestSchedulerPlanFollowerBase {
final static int GB = 1024;
private Clock mClock = null;
private CapacityScheduler scheduler = null;
private RMContext rmContext;
private RMContext spyRMContext;
private CapacitySchedulerContext csContext;
private ReservationAgent mAgent;
private Plan plan;
private Resource minAlloc = Resource.newInstance(GB, 1);
private Resource maxAlloc = Resource.newInstance(GB * 8, 8);
private ResourceCalculator res = new DefaultResourceCalculator();
private CapacityOverTimePolicy policy = new CapacityOverTimePolicy();
private CapacityScheduler cs;
@Rule
public TestName name = new TestName();
@ -84,7 +70,9 @@ public class TestCapacitySchedulerPlanFollower {
@Before
public void setUp() throws Exception {
CapacityScheduler spyCs = new CapacityScheduler();
scheduler = spy(spyCs);
cs = spy(spyCs);
scheduler = cs;
rmContext = TestUtils.getMockRMContext();
spyRMContext = spy(rmContext);
@ -100,7 +88,7 @@ public class TestCapacitySchedulerPlanFollower {
new CapacitySchedulerConfiguration();
ReservationSystemTestUtil.setupQueueConfiguration(csConf);
scheduler.setConf(csConf);
cs.setConf(csConf);
csContext = mock(CapacitySchedulerContext.class);
when(csContext.getConfiguration()).thenReturn(csConf);
@ -119,9 +107,9 @@ public class TestCapacitySchedulerPlanFollower {
when(csContext.getContainerTokenSecretManager()).thenReturn(
containerTokenSecretManager);
scheduler.setRMContext(spyRMContext);
scheduler.init(csConf);
scheduler.start();
cs.setRMContext(spyRMContext);
cs.init(csConf);
cs.start();
setupPlanFollower();
}
@ -132,7 +120,7 @@ public class TestCapacitySchedulerPlanFollower {
mAgent = mock(ReservationAgent.class);
String reservationQ = testUtil.getFullReservationQueueName();
CapacitySchedulerConfiguration csConf = scheduler.getConfiguration();
CapacitySchedulerConfiguration csConf = cs.getConfiguration();
csConf.setReservationWindow(reservationQ, 20L);
csConf.setMaximumCapacity(reservationQ, 40);
csConf.setAverageCapacity(reservationQ, 20);
@ -153,155 +141,51 @@ public class TestCapacitySchedulerPlanFollower {
testPlanFollower(false);
}
private void testPlanFollower(boolean isMove) throws PlanningException,
InterruptedException, AccessControlException {
// Initialize plan based on move flag
plan =
new InMemoryPlan(scheduler.getRootQueueMetrics(), policy, mAgent,
scheduler.getClusterResource(), 1L, res,
scheduler.getMinimumResourceCapability(), maxAlloc, "dedicated",
null, isMove);
@Override
protected void verifyCapacity(Queue defQ) {
CSQueue csQueue = (CSQueue)defQ;
assertTrue(csQueue.getCapacity() > 0.9);
}
// add a few reservations to the plan
long ts = System.currentTimeMillis();
ReservationId r1 = ReservationId.newInstance(ts, 1);
int[] f1 = { 10, 10, 10, 10, 10 };
assertTrue(plan.toString(),
plan.addReservation(new InMemoryReservationAllocation(r1, null, "u3",
"dedicated", 0, 0 + f1.length, ReservationSystemTestUtil
.generateAllocation(0L, 1L, f1), res, minAlloc)));
@Override
protected Queue getDefaultQueue() {
return cs.getQueue("dedicated" + PlanQueue.DEFAULT_QUEUE_SUFFIX);
}
ReservationId r2 = ReservationId.newInstance(ts, 2);
assertTrue(plan.toString(),
plan.addReservation(new InMemoryReservationAllocation(r2, null, "u3",
"dedicated", 3, 3 + f1.length, ReservationSystemTestUtil
.generateAllocation(3L, 1L, f1), res, minAlloc)));
ReservationId r3 = ReservationId.newInstance(ts, 3);
int[] f2 = { 0, 10, 20, 10, 0 };
assertTrue(plan.toString(),
plan.addReservation(new InMemoryReservationAllocation(r3, null, "u4",
"dedicated", 10, 10 + f2.length, ReservationSystemTestUtil
.generateAllocation(10L, 1L, f2), res, minAlloc)));
@Override
protected int getNumberOfApplications(Queue queue) {
CSQueue csQueue = (CSQueue)queue;
int numberOfApplications = csQueue.getNumApplications();
return numberOfApplications;
}
@Override
protected CapacitySchedulerPlanFollower createPlanFollower() {
CapacitySchedulerPlanFollower planFollower =
new CapacitySchedulerPlanFollower();
planFollower.init(mClock, scheduler, Collections.singletonList(plan));
when(mClock.getTime()).thenReturn(0L);
planFollower.run();
CSQueue defQ =
scheduler.getQueue("dedicated" + PlanQueue.DEFAULT_QUEUE_SUFFIX);
CSQueue q = scheduler.getQueue(r1.toString());
assertNotNull(q);
// submit an app to r1
String user_0 = "test-user";
ApplicationId appId = ApplicationId.newInstance(0, 1);
ApplicationAttemptId appAttemptId_0 =
ApplicationAttemptId.newInstance(appId, 0);
AppAddedSchedulerEvent addAppEvent =
new AppAddedSchedulerEvent(appId, q.getQueueName(), user_0);
scheduler.handle(addAppEvent);
AppAttemptAddedSchedulerEvent appAttemptAddedEvent =
new AppAttemptAddedSchedulerEvent(appAttemptId_0, false);
scheduler.handle(appAttemptAddedEvent);
// initial default reservation queue should have no apps
Assert.assertEquals(0, defQ.getNumApplications());
Assert.assertEquals(0.1, q.getCapacity(), 0.01);
Assert.assertEquals(0.1, q.getMaximumCapacity(), 1.0);
Assert.assertEquals(1, q.getNumApplications());
CSQueue q2 = scheduler.getQueue(r2.toString());
assertNull(q2);
CSQueue q3 = scheduler.getQueue(r3.toString());
assertNull(q3);
when(mClock.getTime()).thenReturn(3L);
planFollower.run();
Assert.assertEquals(0, defQ.getNumApplications());
q = scheduler.getQueue(r1.toString());
assertNotNull(q);
Assert.assertEquals(0.1, q.getCapacity(), 0.01);
Assert.assertEquals(0.1, q.getMaximumCapacity(), 1.0);
Assert.assertEquals(1, q.getNumApplications());
q2 = scheduler.getQueue(r2.toString());
assertNotNull(q2);
Assert.assertEquals(0.1, q.getCapacity(), 0.01);
Assert.assertEquals(0.1, q.getMaximumCapacity(), 1.0);
q3 = scheduler.getQueue(r3.toString());
assertNull(q3);
when(mClock.getTime()).thenReturn(10L);
planFollower.run();
q = scheduler.getQueue(r1.toString());
if (isMove) {
// app should have been moved to default reservation queue
Assert.assertEquals(1, defQ.getNumApplications());
assertNull(q);
} else {
// app should be killed
Assert.assertEquals(0, defQ.getNumApplications());
assertNotNull(q);
AppAttemptRemovedSchedulerEvent appAttemptRemovedEvent =
new AppAttemptRemovedSchedulerEvent(appAttemptId_0,
RMAppAttemptState.KILLED, false);
scheduler.handle(appAttemptRemovedEvent);
return planFollower;
}
q2 = scheduler.getQueue(r2.toString());
assertNull(q2);
q3 = scheduler.getQueue(r3.toString());
assertNotNull(q3);
Assert.assertEquals(0, q3.getCapacity(), 0.01);
Assert.assertEquals(1.0, q3.getMaximumCapacity(), 1.0);
when(mClock.getTime()).thenReturn(11L);
planFollower.run();
if (isMove) {
// app should have been moved to default reservation queue
Assert.assertEquals(1, defQ.getNumApplications());
} else {
// app should be killed
Assert.assertEquals(0, defQ.getNumApplications());
@Override
protected void assertReservationQueueExists(ReservationId r) {
CSQueue q = cs.getQueue(r.toString());
assertNotNull(q);
}
q = scheduler.getQueue(r1.toString());
assertNull(q);
q2 = scheduler.getQueue(r2.toString());
@Override
protected void assertReservationQueueExists(ReservationId r2,
double expectedCapacity, double expectedMaxCapacity) {
CSQueue q = cs.getQueue(r2.toString());
assertNotNull(q);
Assert.assertEquals(expectedCapacity, q.getCapacity(), 0.01);
Assert.assertEquals(expectedMaxCapacity, q.getMaximumCapacity(), 1.0);
}
@Override
protected void assertReservationQueueDoesNotExist(ReservationId r2) {
CSQueue q2 = cs.getQueue(r2.toString());
assertNull(q2);
q3 = scheduler.getQueue(r3.toString());
assertNotNull(q3);
Assert.assertEquals(0.1, q3.getCapacity(), 0.01);
Assert.assertEquals(0.1, q3.getMaximumCapacity(), 1.0);
when(mClock.getTime()).thenReturn(12L);
planFollower.run();
q = scheduler.getQueue(r1.toString());
assertNull(q);
q2 = scheduler.getQueue(r2.toString());
assertNull(q2);
q3 = scheduler.getQueue(r3.toString());
assertNotNull(q3);
Assert.assertEquals(0.2, q3.getCapacity(), 0.01);
Assert.assertEquals(0.2, q3.getMaximumCapacity(), 1.0);
when(mClock.getTime()).thenReturn(16L);
planFollower.run();
q = scheduler.getQueue(r1.toString());
assertNull(q);
q2 = scheduler.getQueue(r2.toString());
assertNull(q2);
q3 = scheduler.getQueue(r3.toString());
assertNull(q3);
assertTrue(defQ.getCapacity() > 0.9);
}
public static ApplicationACLsManager mockAppACLsManager() {
@ -312,8 +196,11 @@ public class TestCapacitySchedulerPlanFollower {
@After
public void tearDown() throws Exception {
if (scheduler != null) {
scheduler.stop();
cs.stop();
}
}
protected Queue getReservationQueue(String reservationId) {
return cs.getQueue(reservationId);
}
}

View File

@ -0,0 +1,191 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.yarn.server.resourcemanager.reservation;
import org.apache.hadoop.security.AccessControlException;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.ReservationId;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.server.resourcemanager.reservation.exceptions.PlanningException;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptState;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.Queue;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.AppAddedSchedulerEvent;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.AppAttemptAddedSchedulerEvent;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.AppAttemptRemovedSchedulerEvent;
import org.apache.hadoop.yarn.util.Clock;
import org.apache.hadoop.yarn.util.resource.DefaultResourceCalculator;
import org.apache.hadoop.yarn.util.resource.ResourceCalculator;
import org.junit.Assert;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.when;
public abstract class TestSchedulerPlanFollowerBase {
final static int GB = 1024;
protected Clock mClock = null;
protected ResourceScheduler scheduler = null;
protected ReservationAgent mAgent;
protected Resource minAlloc = Resource.newInstance(GB, 1);
protected Resource maxAlloc = Resource.newInstance(GB * 8, 8);
protected CapacityOverTimePolicy policy = new CapacityOverTimePolicy();
protected Plan plan;
private ResourceCalculator res = new DefaultResourceCalculator();
protected void testPlanFollower(boolean isMove) throws PlanningException,
InterruptedException, AccessControlException {
// Initialize plan based on move flag
plan =
new InMemoryPlan(scheduler.getRootQueueMetrics(), policy, mAgent,
scheduler.getClusterResource(), 1L, res,
scheduler.getMinimumResourceCapability(), maxAlloc, "dedicated",
null, isMove);
// add a few reservations to the plan
long ts = System.currentTimeMillis();
ReservationId r1 = ReservationId.newInstance(ts, 1);
int[] f1 = { 10, 10, 10, 10, 10 };
assertTrue(plan.toString(),
plan.addReservation(new InMemoryReservationAllocation(r1, null, "u3",
"dedicated", 0, 0 + f1.length, ReservationSystemTestUtil
.generateAllocation(0L, 1L, f1), res, minAlloc)));
ReservationId r2 = ReservationId.newInstance(ts, 2);
assertTrue(plan.toString(),
plan.addReservation(new InMemoryReservationAllocation(r2, null, "u3",
"dedicated", 3, 3 + f1.length, ReservationSystemTestUtil
.generateAllocation(3L, 1L, f1), res, minAlloc)));
ReservationId r3 = ReservationId.newInstance(ts, 3);
int[] f2 = { 0, 10, 20, 10, 0 };
assertTrue(plan.toString(),
plan.addReservation(new InMemoryReservationAllocation(r3, null, "u4",
"dedicated", 10, 10 + f2.length, ReservationSystemTestUtil
.generateAllocation(10L, 1L, f2), res, minAlloc)));
AbstractSchedulerPlanFollower planFollower = createPlanFollower();
when(mClock.getTime()).thenReturn(0L);
planFollower.run();
Queue q = getReservationQueue(r1.toString());
assertReservationQueueExists(r1);
// submit an app to r1
String user_0 = "test-user";
ApplicationId appId = ApplicationId.newInstance(0, 1);
ApplicationAttemptId appAttemptId_0 =
ApplicationAttemptId.newInstance(appId, 0);
AppAddedSchedulerEvent addAppEvent =
new AppAddedSchedulerEvent(appId, q.getQueueName(), user_0);
scheduler.handle(addAppEvent);
AppAttemptAddedSchedulerEvent appAttemptAddedEvent =
new AppAttemptAddedSchedulerEvent(appAttemptId_0, false);
scheduler.handle(appAttemptAddedEvent);
// initial default reservation queue should have no apps
Queue defQ = getDefaultQueue();
Assert.assertEquals(0, getNumberOfApplications(defQ));
assertReservationQueueExists(r1, 0.1, 0.1);
Assert.assertEquals(1, getNumberOfApplications(q));
assertReservationQueueDoesNotExist(r2);
assertReservationQueueDoesNotExist(r3);
when(mClock.getTime()).thenReturn(3L);
planFollower.run();
Assert.assertEquals(0, getNumberOfApplications(defQ));
assertReservationQueueExists(r1, 0.1, 0.1);
Assert.assertEquals(1, getNumberOfApplications(q));
assertReservationQueueExists(r2, 0.1, 0.1);
assertReservationQueueDoesNotExist(r3);
when(mClock.getTime()).thenReturn(10L);
planFollower.run();
q = getReservationQueue(r1.toString());
if (isMove) {
// app should have been moved to default reservation queue
Assert.assertEquals(1, getNumberOfApplications(defQ));
assertNull(q);
} else {
// app should be killed
Assert.assertEquals(0, getNumberOfApplications(defQ));
assertNotNull(q);
AppAttemptRemovedSchedulerEvent appAttemptRemovedEvent =
new AppAttemptRemovedSchedulerEvent(appAttemptId_0,
RMAppAttemptState.KILLED, false);
scheduler.handle(appAttemptRemovedEvent);
}
assertReservationQueueDoesNotExist(r2);
assertReservationQueueExists(r3, 0, 1.0);
when(mClock.getTime()).thenReturn(11L);
planFollower.run();
if (isMove) {
// app should have been moved to default reservation queue
Assert.assertEquals(1, getNumberOfApplications(defQ));
} else {
// app should be killed
Assert.assertEquals(0, getNumberOfApplications(defQ));
}
assertReservationQueueDoesNotExist(r1);
assertReservationQueueDoesNotExist(r2);
assertReservationQueueExists(r3, 0.1, 0.1);
when(mClock.getTime()).thenReturn(12L);
planFollower.run();
assertReservationQueueDoesNotExist(r1);
assertReservationQueueDoesNotExist(r2);
assertReservationQueueExists(r3, 0.2, 0.2);
when(mClock.getTime()).thenReturn(16L);
planFollower.run();
assertReservationQueueDoesNotExist(r1);
assertReservationQueueDoesNotExist(r2);
assertReservationQueueDoesNotExist(r3);
verifyCapacity(defQ);
}
protected abstract Queue getReservationQueue(String reservationId);
protected abstract void verifyCapacity(Queue defQ);
protected abstract Queue getDefaultQueue();
protected abstract int getNumberOfApplications(Queue queue);
protected abstract AbstractSchedulerPlanFollower createPlanFollower();
protected abstract void assertReservationQueueExists(ReservationId r);
protected abstract void assertReservationQueueExists(ReservationId r2,
double expectedCapacity, double expectedMaxCapacity);
protected abstract void assertReservationQueueDoesNotExist(ReservationId r2);
}