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From jia...@apache.org
Subject [2/2] hadoop git commit: YARN-2637. Fixed max-am-resource-percent calculation in CapacityScheduler when activating applications. Contributed by Craig Welch
Date Wed, 14 Jan 2015 01:32:22 GMT
YARN-2637. Fixed max-am-resource-percent calculation in CapacityScheduler when activating applications. Contributed by Craig Welch


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/c53420f5
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/c53420f5
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/c53420f5

Branch: refs/heads/trunk
Commit: c53420f58364b11fbda1dace7679d45534533382
Parents: 85aec75
Author: Jian He <jianhe@apache.org>
Authored: Tue Jan 13 17:32:07 2015 -0800
Committer: Jian He <jianhe@apache.org>
Committed: Tue Jan 13 17:32:07 2015 -0800

----------------------------------------------------------------------
 hadoop-yarn-project/CHANGES.txt                 |   3 +
 .../dev-support/findbugs-exclude.xml            |   1 +
 .../resourcemanager/RMActiveServiceContext.java |   4 +-
 .../server/resourcemanager/RMContextImpl.java   |  32 ++-
 .../server/resourcemanager/rmapp/RMApp.java     |   3 +
 .../server/resourcemanager/rmapp/RMAppImpl.java |   5 +
 .../scheduler/capacity/CSQueueUtils.java        |  24 --
 .../scheduler/capacity/LeafQueue.java           | 252 ++++++++++++------
 .../scheduler/common/fica/FiCaSchedulerApp.java |  15 ++
 .../webapp/CapacitySchedulerPage.java           |   4 +-
 .../dao/CapacitySchedulerLeafQueueInfo.java     |  24 +-
 .../applicationsmanager/MockAsm.java            |   7 +
 .../TestAMRMRPCNodeUpdates.java                 |   9 +
 .../TestCapacitySchedulerPlanFollower.java      |   1 +
 .../server/resourcemanager/rmapp/MockRMApp.java |   7 +
 .../capacity/TestApplicationLimits.java         | 256 +++++++++++++------
 .../scheduler/capacity/TestLeafQueue.java       |  79 +++---
 .../scheduler/capacity/TestReservations.java    |  34 +--
 .../scheduler/fifo/TestFifoScheduler.java       |  23 +-
 .../webapp/TestRMWebServicesCapacitySched.java  |  12 -
 20 files changed, 519 insertions(+), 276 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hadoop/blob/c53420f5/hadoop-yarn-project/CHANGES.txt
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/CHANGES.txt b/hadoop-yarn-project/CHANGES.txt
index 0afc4cf..bbdfcb5 100644
--- a/hadoop-yarn-project/CHANGES.txt
+++ b/hadoop-yarn-project/CHANGES.txt
@@ -356,6 +356,9 @@ Release 2.7.0 - UNRELEASED
     YARN-3027. Scheduler should use totalAvailable resource from node instead of
     availableResource for maxAllocation. (adhoot via rkanter)
 
+    YARN-2637. Fixed max-am-resource-percent calculation in CapacityScheduler
+    when activating applications. (Craig Welch via jianhe)
+
 Release 2.6.0 - 2014-11-18
 
   INCOMPATIBLE CHANGES

http://git-wip-us.apache.org/repos/asf/hadoop/blob/c53420f5/hadoop-yarn-project/hadoop-yarn/dev-support/findbugs-exclude.xml
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/dev-support/findbugs-exclude.xml b/hadoop-yarn-project/hadoop-yarn/dev-support/findbugs-exclude.xml
index 315044d..e0bbd7b 100644
--- a/hadoop-yarn-project/hadoop-yarn/dev-support/findbugs-exclude.xml
+++ b/hadoop-yarn-project/hadoop-yarn/dev-support/findbugs-exclude.xml
@@ -173,6 +173,7 @@
       <Field name="userLimit" />
       <Field name="userLimitFactor" />
       <Field name="maxAMResourcePerQueuePercent" />
+      <Field name="lastClusterResource" />
     </Or>
     <Bug pattern="IS2_INCONSISTENT_SYNC" />
   </Match>

http://git-wip-us.apache.org/repos/asf/hadoop/blob/c53420f5/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMActiveServiceContext.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMActiveServiceContext.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMActiveServiceContext.java
index 3bc2e9b..03fc40e 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMActiveServiceContext.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMActiveServiceContext.java
@@ -117,7 +117,8 @@ public class RMActiveServiceContext {
       RMContainerTokenSecretManager containerTokenSecretManager,
       NMTokenSecretManagerInRM nmTokenSecretManager,
       ClientToAMTokenSecretManagerInRM clientToAMTokenSecretManager,
-      RMApplicationHistoryWriter rmApplicationHistoryWriter) {
+      RMApplicationHistoryWriter rmApplicationHistoryWriter,
+      ResourceScheduler scheduler) {
     this();
     this.setContainerAllocationExpirer(containerAllocationExpirer);
     this.setAMLivelinessMonitor(amLivelinessMonitor);
@@ -128,6 +129,7 @@ public class RMActiveServiceContext {
     this.setNMTokenSecretManager(nmTokenSecretManager);
     this.setClientToAMTokenSecretManager(clientToAMTokenSecretManager);
     this.setRMApplicationHistoryWriter(rmApplicationHistoryWriter);
+    this.setScheduler(scheduler);
 
     RMStateStore nullStore = new NullRMStateStore();
     nullStore.setRMDispatcher(rmDispatcher);

http://git-wip-us.apache.org/repos/asf/hadoop/blob/c53420f5/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMContextImpl.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMContextImpl.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMContextImpl.java
index ebf2fe4..1d0d6c0 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMContextImpl.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMContextImpl.java
@@ -87,18 +87,46 @@ public class RMContextImpl implements RMContext {
       RMContainerTokenSecretManager containerTokenSecretManager,
       NMTokenSecretManagerInRM nmTokenSecretManager,
       ClientToAMTokenSecretManagerInRM clientToAMTokenSecretManager,
-      RMApplicationHistoryWriter rmApplicationHistoryWriter) {
+      RMApplicationHistoryWriter rmApplicationHistoryWriter,
+      ResourceScheduler scheduler) {
     this();
     this.setDispatcher(rmDispatcher);
     setActiveServiceContext(new RMActiveServiceContext(rmDispatcher,
         containerAllocationExpirer, amLivelinessMonitor, amFinishingMonitor,
         delegationTokenRenewer, appTokenSecretManager,
         containerTokenSecretManager, nmTokenSecretManager,
-        clientToAMTokenSecretManager, rmApplicationHistoryWriter));
+        clientToAMTokenSecretManager, rmApplicationHistoryWriter,
+        scheduler));
 
     ConfigurationProvider provider = new LocalConfigurationProvider();
     setConfigurationProvider(provider);
   }
+  
+  @VisibleForTesting
+  // helper constructor for tests
+  public RMContextImpl(Dispatcher rmDispatcher,
+      ContainerAllocationExpirer containerAllocationExpirer,
+      AMLivelinessMonitor amLivelinessMonitor,
+      AMLivelinessMonitor amFinishingMonitor,
+      DelegationTokenRenewer delegationTokenRenewer,
+      AMRMTokenSecretManager appTokenSecretManager,
+      RMContainerTokenSecretManager containerTokenSecretManager,
+      NMTokenSecretManagerInRM nmTokenSecretManager,
+      ClientToAMTokenSecretManagerInRM clientToAMTokenSecretManager,
+      RMApplicationHistoryWriter rmApplicationHistoryWriter) {
+    this(
+      rmDispatcher,
+      containerAllocationExpirer,
+      amLivelinessMonitor,
+      amFinishingMonitor,
+      delegationTokenRenewer,
+      appTokenSecretManager,
+      containerTokenSecretManager,
+      nmTokenSecretManager,
+      clientToAMTokenSecretManager,
+      rmApplicationHistoryWriter,
+      null);
+  }
 
   @Override
   public Dispatcher getDispatcher() {

http://git-wip-us.apache.org/repos/asf/hadoop/blob/c53420f5/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/RMApp.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/RMApp.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/RMApp.java
index 624aa18..fbcaab9 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/RMApp.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/RMApp.java
@@ -30,6 +30,7 @@ import org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext;
 import org.apache.hadoop.yarn.api.records.FinalApplicationStatus;
 import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.ReservationId;
+import org.apache.hadoop.yarn.api.records.ResourceRequest;
 import org.apache.hadoop.yarn.api.records.YarnApplicationState;
 import org.apache.hadoop.yarn.event.EventHandler;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttempt;
@@ -239,4 +240,6 @@ public interface RMApp extends EventHandler<RMAppEvent> {
   RMAppMetrics getRMAppMetrics();
 
   ReservationId getReservationId();
+  
+  ResourceRequest getAMResourceRequest();
 }

http://git-wip-us.apache.org/repos/asf/hadoop/blob/c53420f5/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/RMAppImpl.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/RMAppImpl.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/RMAppImpl.java
index 33b62fe..2d1737a 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/RMAppImpl.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/RMAppImpl.java
@@ -1339,6 +1339,11 @@ public class RMAppImpl implements RMApp, Recoverable {
   public ReservationId getReservationId() {
     return submissionContext.getReservationID();
   }
+  
+  @Override
+  public ResourceRequest getAMResourceRequest() {
+    return this.amReq; 
+  }
 
   protected Credentials parseCredentials() throws IOException {
     Credentials credentials = new Credentials();

http://git-wip-us.apache.org/repos/asf/hadoop/blob/c53420f5/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CSQueueUtils.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CSQueueUtils.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CSQueueUtils.java
index 0a2fa3a..f458057 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CSQueueUtils.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CSQueueUtils.java
@@ -109,30 +109,6 @@ class CSQueueUtils {
     }
     return absoluteMaxCapacityByNodeLabels;
   }
-
-  public static int computeMaxActiveApplications(
-      ResourceCalculator calculator,
-      Resource clusterResource, Resource minimumAllocation, 
-      float maxAMResourcePercent, float absoluteMaxCapacity) {
-    return
-        Math.max(
-            (int)Math.ceil(
-                Resources.ratio(
-                    calculator, 
-                    clusterResource, 
-                    minimumAllocation) * 
-                    maxAMResourcePercent * absoluteMaxCapacity
-                ), 
-            1);
-  }
-
-  public static int computeMaxActiveApplicationsPerUser(
-      int maxActiveApplications, int userLimit, float userLimitFactor) {
-    return Math.max(
-        (int)Math.ceil(
-            maxActiveApplications * (userLimit / 100.0f) * userLimitFactor),
-        1);
-  }
   
   @Lock(CSQueue.class)
   public static void updateQueueStatistics(

http://git-wip-us.apache.org/repos/asf/hadoop/blob/c53420f5/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/LeafQueue.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/LeafQueue.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/LeafQueue.java
index dd71069..fd8a7ee 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/LeafQueue.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/LeafQueue.java
@@ -87,9 +87,6 @@ public class LeafQueue extends AbstractCSQueue {
   protected int maxApplicationsPerUser;
   
   private float maxAMResourcePerQueuePercent;
-  private int maxActiveApplications; // Based on absolute max capacity
-  private int maxActiveAppsUsingAbsCap; // Based on absolute capacity
-  private int maxActiveApplicationsPerUser;
   
   private int nodeLocalityDelay;
 
@@ -113,8 +110,15 @@ public class LeafQueue extends AbstractCSQueue {
   // cache last cluster resource to compute actual capacity
   private Resource lastClusterResource = Resources.none();
   
+  // absolute capacity as a resource (based on cluster resource)
+  private Resource absoluteCapacityResource = Resources.none();
+  
   private final QueueHeadroomInfo queueHeadroomInfo = new QueueHeadroomInfo();
   
+  // sum of resources used by application masters for applications
+  // running in this queue
+  private final Resource usedAMResources = Resource.newInstance(0, 0);
+  
   public LeafQueue(CapacitySchedulerContext cs, 
       String queueName, CSQueue parent, CSQueue old) throws IOException {
     super(cs, queueName, parent, old);
@@ -149,19 +153,6 @@ public class LeafQueue extends AbstractCSQueue {
 
     float maxAMResourcePerQueuePercent = cs.getConfiguration()
         .getMaximumApplicationMasterResourcePerQueuePercent(getQueuePath());
-    int maxActiveApplications = 
-        CSQueueUtils.computeMaxActiveApplications(
-            resourceCalculator,
-            cs.getClusterResource(), this.minimumAllocation,
-            maxAMResourcePerQueuePercent, absoluteMaxCapacity);
-    this.maxActiveAppsUsingAbsCap = 
-            CSQueueUtils.computeMaxActiveApplications(
-                resourceCalculator,
-                cs.getClusterResource(), this.minimumAllocation,
-                maxAMResourcePerQueuePercent, absoluteCapacity);
-    int maxActiveApplicationsPerUser =
-        CSQueueUtils.computeMaxActiveApplicationsPerUser(
-            maxActiveAppsUsingAbsCap, userLimit, userLimitFactor);
 
     QueueState state = cs.getConfiguration().getState(getQueuePath());
 
@@ -171,8 +162,7 @@ public class LeafQueue extends AbstractCSQueue {
     setupQueueConfigs(cs.getClusterResource(), capacity, absoluteCapacity,
         maximumCapacity, absoluteMaxCapacity, userLimit, userLimitFactor,
         maxApplications, maxAMResourcePerQueuePercent, maxApplicationsPerUser,
-        maxActiveApplications, maxActiveApplicationsPerUser, state, acls, cs
-            .getConfiguration().getNodeLocalityDelay(), accessibleLabels,
+        state, acls, cs.getConfiguration().getNodeLocalityDelay(), accessibleLabels,
         defaultLabelExpression, this.capacitiyByNodeLabels,
         this.maxCapacityByNodeLabels,
         cs.getConfiguration().getReservationContinueLook());
@@ -200,8 +190,7 @@ public class LeafQueue extends AbstractCSQueue {
       float maximumCapacity, float absoluteMaxCapacity,
       int userLimit, float userLimitFactor,
       int maxApplications, float maxAMResourcePerQueuePercent,
-      int maxApplicationsPerUser, int maxActiveApplications,
-      int maxActiveApplicationsPerUser, QueueState state,
+      int maxApplicationsPerUser, QueueState state,
       Map<QueueACL, AccessControlList> acls, int nodeLocalityDelay,
       Set<String> labels, String defaultLabelExpression,
       Map<String, Float> capacitieByLabel,
@@ -216,6 +205,16 @@ public class LeafQueue extends AbstractCSQueue {
     float absCapacity = getParent().getAbsoluteCapacity() * capacity;
     CSQueueUtils.checkAbsoluteCapacity(getQueueName(), absCapacity,
         absoluteMaxCapacity);
+    
+    this.lastClusterResource = clusterResource;
+    updateAbsoluteCapacityResource(clusterResource);
+    
+    // Initialize headroom info, also used for calculating application 
+    // master resource limits.  Since this happens during queue initialization
+    // and all queues may not be realized yet, we'll use (optimistic) 
+    // absoluteMaxCapacity (it will be replaced with the more accurate 
+    // absoluteMaxAvailCapacity during headroom/userlimit/allocation events)
+    updateHeadroomInfo(clusterResource, absoluteMaxCapacity);
 
     this.absoluteCapacity = absCapacity;
 
@@ -226,9 +225,6 @@ public class LeafQueue extends AbstractCSQueue {
     this.maxAMResourcePerQueuePercent = maxAMResourcePerQueuePercent;
     this.maxApplicationsPerUser = maxApplicationsPerUser;
 
-    this.maxActiveApplications = maxActiveApplications;
-    this.maxActiveApplicationsPerUser = maxActiveApplicationsPerUser;
-
     if (!SchedulerUtils.checkQueueLabelExpression(this.accessibleLabels,
         this.defaultLabelExpression)) {
       throw new IOException("Invalid default label expression of "
@@ -280,21 +276,6 @@ public class LeafQueue extends AbstractCSQueue {
         "maxApplicationsPerUser = " + maxApplicationsPerUser +
         " [= (int)(maxApplications * (userLimit / 100.0f) * " +
         "userLimitFactor) ]" + "\n" +
-        "maxActiveApplications = " + maxActiveApplications +
-        " [= max(" + 
-        "(int)ceil((clusterResourceMemory / minimumAllocation) * " + 
-        "maxAMResourcePerQueuePercent * absoluteMaxCapacity)," + 
-        "1) ]" + "\n" +
-        "maxActiveAppsUsingAbsCap = " + maxActiveAppsUsingAbsCap +
-        " [= max(" + 
-        "(int)ceil((clusterResourceMemory / minimumAllocation) *" + 
-        "maxAMResourcePercent * absoluteCapacity)," + 
-        "1) ]" + "\n" +
-        "maxActiveApplicationsPerUser = " + maxActiveApplicationsPerUser +
-        " [= max(" +
-        "(int)(maxActiveApplications * (userLimit / 100.0f) * " +
-        "userLimitFactor)," +
-        "1) ]" + "\n" +
         "usedCapacity = " + usedCapacity +
         " [= usedResourcesMemory / " +
         "(clusterResourceMemory * absoluteCapacity)]" + "\n" +
@@ -347,14 +328,6 @@ public class LeafQueue extends AbstractCSQueue {
     return maxApplicationsPerUser;
   }
 
-  public synchronized int getMaximumActiveApplications() {
-    return maxActiveApplications;
-  }
-
-  public synchronized int getMaximumActiveApplicationsPerUser() {
-    return maxActiveApplicationsPerUser;
-  }
-
   @Override
   public ActiveUsersManager getActiveUsersManager() {
     return activeUsersManager;
@@ -517,8 +490,6 @@ public class LeafQueue extends AbstractCSQueue {
         newlyParsedLeafQueue.maxApplications,
         newlyParsedLeafQueue.maxAMResourcePerQueuePercent,
         newlyParsedLeafQueue.getMaxApplicationsPerUser(),
-        newlyParsedLeafQueue.getMaximumActiveApplications(), 
-        newlyParsedLeafQueue.getMaximumActiveApplicationsPerUser(),
         newlyParsedLeafQueue.state, newlyParsedLeafQueue.acls,
         newlyParsedLeafQueue.getNodeLocalityDelay(),
         newlyParsedLeafQueue.accessibleLabels,
@@ -604,27 +575,115 @@ public class LeafQueue extends AbstractCSQueue {
     }
 
   }
+  
+  public synchronized Resource getAMResourceLimit() {
+     /* 
+      * The limit to the amount of resources which can be consumed by
+      * application masters for applications running in the queue
+      * is calculated by taking the greater of the max resources currently
+      * available to the queue (see absoluteMaxAvailCapacity) and the absolute
+      * resources guaranteed for the queue and multiplying it by the am
+      * resource percent.
+      *
+      * This is to allow a queue to grow its (proportional) application 
+      * master resource use up to its max capacity when other queues are 
+      * idle but to scale back down to it's guaranteed capacity as they 
+      * become busy.
+      *
+      */
+     Resource queueMaxCap;
+     synchronized (queueHeadroomInfo) {
+       queueMaxCap = queueHeadroomInfo.getQueueMaxCap();
+     }
+     Resource queueCap = Resources.max(resourceCalculator, lastClusterResource,
+       absoluteCapacityResource, queueMaxCap);
+     return Resources.multiplyAndNormalizeUp( 
+          resourceCalculator,
+          queueCap, 
+          maxAMResourcePerQueuePercent, minimumAllocation);
+  }
+  
+  public synchronized Resource getUserAMResourceLimit() {
+     /*
+      * The user amresource limit is based on the same approach as the 
+      * user limit (as it should represent a subset of that).  This means that
+      * it uses the absolute queue capacity instead of the max and is modified
+      * by the userlimit and the userlimit factor as is the userlimit
+      *
+      */ 
+     float effectiveUserLimit = Math.max(userLimit / 100.0f, 1.0f /    
+       Math.max(getActiveUsersManager().getNumActiveUsers(), 1));
+     
+     return Resources.multiplyAndNormalizeUp( 
+          resourceCalculator,
+          absoluteCapacityResource, 
+          maxAMResourcePerQueuePercent * effectiveUserLimit  *
+            userLimitFactor, minimumAllocation);
+  }
 
   private synchronized void activateApplications() {
+    //limit of allowed resource usage for application masters
+    Resource amLimit = getAMResourceLimit();
+    Resource userAMLimit = getUserAMResourceLimit();
+        
     for (Iterator<FiCaSchedulerApp> i=pendingApplications.iterator(); 
          i.hasNext(); ) {
       FiCaSchedulerApp application = i.next();
       
-      // Check queue limit
-      if (getNumActiveApplications() >= getMaximumActiveApplications()) {
-        break;
+      // Check am resource limit
+      Resource amIfStarted = 
+        Resources.add(application.getAMResource(), usedAMResources);
+      
+      if (LOG.isDebugEnabled()) {
+        LOG.debug("application AMResource " + application.getAMResource() +
+          " maxAMResourcePerQueuePercent " + maxAMResourcePerQueuePercent +
+          " amLimit " + amLimit +
+          " lastClusterResource " + lastClusterResource +
+          " amIfStarted " + amIfStarted);
+      }
+      
+      if (!Resources.lessThanOrEqual(
+        resourceCalculator, lastClusterResource, amIfStarted, amLimit)) {
+        if (getNumActiveApplications() < 1) {
+          LOG.warn("maximum-am-resource-percent is insufficient to start a" +
+            " single application in queue, it is likely set too low." +
+            " skipping enforcement to allow at least one application to start"); 
+        } else {
+          LOG.info("not starting application as amIfStarted exceeds amLimit");
+          continue;
+        }
       }
       
-      // Check user limit
+      // Check user am resource limit
+      
       User user = getUser(application.getUser());
-      if (user.getActiveApplications() < getMaximumActiveApplicationsPerUser()) {
-        user.activateApplication();
-        activeApplications.add(application);
-        i.remove();
-        LOG.info("Application " + application.getApplicationId() +
-            " from user: " + application.getUser() + 
-            " activated in queue: " + getQueueName());
+      
+      Resource userAmIfStarted = 
+        Resources.add(application.getAMResource(),
+          user.getConsumedAMResources());
+        
+      if (!Resources.lessThanOrEqual(
+          resourceCalculator, lastClusterResource, userAmIfStarted, 
+          userAMLimit)) {
+        if (getNumActiveApplications() < 1) {
+          LOG.warn("maximum-am-resource-percent is insufficient to start a" +
+            " single application in queue for user, it is likely set too low." +
+            " skipping enforcement to allow at least one application to start"); 
+        } else {
+          LOG.info("not starting application as amIfStarted exceeds " +
+            "userAmLimit");
+          continue;
+        }
       }
+      user.activateApplication();
+      activeApplications.add(application);
+      Resources.addTo(usedAMResources, application.getAMResource());
+      Resources.addTo(user.getConsumedAMResources(), 
+        application.getAMResource());
+      i.remove();
+      LOG.info("Application " + application.getApplicationId() +
+          " from user: " + application.getUser() + 
+          " activated in queue: " + getQueueName());
     }
   }
   
@@ -670,6 +729,10 @@ public class LeafQueue extends AbstractCSQueue {
     boolean wasActive = activeApplications.remove(application);
     if (!wasActive) {
       pendingApplications.remove(application);
+    } else {
+      Resources.subtractFrom(usedAMResources, application.getAMResource());
+      Resources.subtractFrom(user.getConsumedAMResources(),
+        application.getAMResource());
     }
     applicationAttemptMap.remove(application.getApplicationAttemptId());
 
@@ -997,6 +1060,25 @@ public class LeafQueue extends AbstractCSQueue {
     
     return canAssign;
   }
+  
+  private Resource updateHeadroomInfo(Resource clusterResource, 
+      float absoluteMaxAvailCapacity) {
+  
+    Resource queueMaxCap = 
+      Resources.multiplyAndNormalizeDown(
+          resourceCalculator, 
+          clusterResource, 
+          absoluteMaxAvailCapacity,
+          minimumAllocation);
+
+    synchronized (queueHeadroomInfo) {
+      queueHeadroomInfo.setQueueMaxCap(queueMaxCap);
+      queueHeadroomInfo.setClusterResource(clusterResource);
+    }
+    
+    return queueMaxCap;
+    
+  }
 
   @Lock({LeafQueue.class, FiCaSchedulerApp.class})
   Resource computeUserLimitAndSetHeadroom(FiCaSchedulerApp application,
@@ -1015,18 +1097,9 @@ public class LeafQueue extends AbstractCSQueue {
     //capacity
     float absoluteMaxAvailCapacity = CSQueueUtils.getAbsoluteMaxAvailCapacity(
       resourceCalculator, clusterResource, this);
-
-    Resource queueMaxCap =                        // Queue Max-Capacity
-        Resources.multiplyAndNormalizeDown(
-            resourceCalculator, 
-            clusterResource, 
-            absoluteMaxAvailCapacity,
-            minimumAllocation);
-	
-    synchronized (queueHeadroomInfo) {
-      queueHeadroomInfo.setQueueMaxCap(queueMaxCap);
-      queueHeadroomInfo.setClusterResource(clusterResource);
-    }
+    
+    Resource queueMaxCap = 
+      updateHeadroomInfo(clusterResource, absoluteMaxAvailCapacity);
     
     Resource headroom =
         getHeadroom(queueUser, queueMaxCap, clusterResource, userLimit);
@@ -1721,25 +1794,25 @@ public class LeafQueue extends AbstractCSQueue {
         " used=" + usedResources + " numContainers=" + numContainers + 
         " user=" + userName + " user-resources=" + user.getTotalConsumedResources());
   }
+  
+  private void updateAbsoluteCapacityResource(Resource clusterResource) {
+    
+       absoluteCapacityResource = Resources.multiplyAndNormalizeUp( 
+          resourceCalculator,
+          clusterResource, 
+          absoluteCapacity, minimumAllocation);
+       
+  }
 
   @Override
   public synchronized void updateClusterResource(Resource clusterResource) {
     lastClusterResource = clusterResource;
+    updateAbsoluteCapacityResource(clusterResource);
     
-    // Update queue properties
-    maxActiveApplications = 
-        CSQueueUtils.computeMaxActiveApplications(
-            resourceCalculator,
-            clusterResource, minimumAllocation, 
-            maxAMResourcePerQueuePercent, absoluteMaxCapacity);
-    maxActiveAppsUsingAbsCap = 
-        CSQueueUtils.computeMaxActiveApplications(
-            resourceCalculator,
-            clusterResource, minimumAllocation, 
-            maxAMResourcePerQueuePercent, absoluteCapacity);
-    maxActiveApplicationsPerUser = 
-        CSQueueUtils.computeMaxActiveApplicationsPerUser(
-            maxActiveAppsUsingAbsCap, userLimit, userLimitFactor);
+    // Update headroom info based on new cluster resource value
+    // absoluteMaxCapacity now,  will be replaced with absoluteMaxAvailCapacity
+    // during allocation
+    updateHeadroomInfo(clusterResource, absoluteMaxCapacity);
     
     // Update metrics
     CSQueueUtils.updateQueueStatistics(
@@ -1762,6 +1835,7 @@ public class LeafQueue extends AbstractCSQueue {
   @VisibleForTesting
   public static class User {
     Resource consumed = Resources.createResource(0, 0);
+    Resource consumedAMResources = Resources.createResource(0, 0);
     Map<String, Resource> consumedByLabel = new HashMap<String, Resource>();
     int pendingApplications = 0;
     int activeApplications = 0;
@@ -1785,6 +1859,10 @@ public class LeafQueue extends AbstractCSQueue {
     public int getActiveApplications() {
       return activeApplications;
     }
+    
+    public Resource getConsumedAMResources() {
+      return consumedAMResources; 
+    }
 
     public int getTotalApplications() {
       return getPendingApplications() + getActiveApplications();
@@ -1933,6 +2011,10 @@ public class LeafQueue extends AbstractCSQueue {
 
   @Override
   public float getAbsActualCapacity() {
+    //? Is this actually used by anything at present?
+    //  There is a findbugs warning -re lastClusterResource (now excluded),
+    //  when this is used, verify that the access is mt correct and remove
+    //  the findbugs exclusion if possible
     if (Resources.lessThanOrEqual(resourceCalculator, lastClusterResource,
         lastClusterResource, Resources.none())) {
       return absoluteCapacity;

http://git-wip-us.apache.org/repos/asf/hadoop/blob/c53420f5/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/common/fica/FiCaSchedulerApp.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/common/fica/FiCaSchedulerApp.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/common/fica/FiCaSchedulerApp.java
index 2f9569c..9f97b13 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/common/fica/FiCaSchedulerApp.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/common/fica/FiCaSchedulerApp.java
@@ -52,6 +52,7 @@ import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApplicat
 import org.apache.hadoop.yarn.util.resource.Resources;
 import org.apache.hadoop.yarn.util.resource.ResourceCalculator;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityHeadroomProvider;
+import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
 
 /**
  * Represents an application attempt from the viewpoint of the FIFO or Capacity
@@ -72,6 +73,20 @@ public class FiCaSchedulerApp extends SchedulerApplicationAttempt {
       String user, Queue queue, ActiveUsersManager activeUsersManager,
       RMContext rmContext) {
     super(applicationAttemptId, user, queue, activeUsersManager, rmContext);
+    
+    RMApp rmApp = rmContext.getRMApps().get(getApplicationId());
+    
+    Resource amResource;
+    if (rmApp == null || rmApp.getAMResourceRequest() == null) {
+      //the rmApp may be undefined (the resource manager checks for this too)
+      //and unmanaged applications do not provide an amResource request
+      //in these cases, provide a default using the scheduler
+      amResource = rmContext.getScheduler().getMinimumResourceCapability();
+    } else {
+      amResource = rmApp.getAMResourceRequest().getCapability();
+    }
+    
+    setAMResource(amResource);
   }
 
   synchronized public boolean containerCompleted(RMContainer rmContainer,

http://git-wip-us.apache.org/repos/asf/hadoop/blob/c53420f5/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/CapacitySchedulerPage.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/CapacitySchedulerPage.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/CapacitySchedulerPage.java
index 89b4a78..1f65b88 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/CapacitySchedulerPage.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/CapacitySchedulerPage.java
@@ -114,8 +114,8 @@ class CapacitySchedulerPage extends RmView {
           _("Num Containers:", Integer.toString(lqinfo.getNumContainers())).
           _("Max Applications:", Integer.toString(lqinfo.getMaxApplications())).
           _("Max Applications Per User:", Integer.toString(lqinfo.getMaxApplicationsPerUser())).
-          _("Max Schedulable Applications:", Integer.toString(lqinfo.getMaxActiveApplications())).
-          _("Max Schedulable Applications Per User:", Integer.toString(lqinfo.getMaxActiveApplicationsPerUser())).
+          _("Max Application Master Resources:", lqinfo.getAMResourceLimit().toString()).
+          _("Max Application Master Resources Per User:", lqinfo.getUserAMResourceLimit().toString()).
           _("Configured Capacity:", percent(lqinfo.getCapacity() / 100)).
           _("Configured Max Capacity:", percent(lqinfo.getMaxCapacity() / 100)).
           _("Configured Minimum User Limit Percent:", Integer.toString(lqinfo.getUserLimit()) + "%").

http://git-wip-us.apache.org/repos/asf/hadoop/blob/c53420f5/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/CapacitySchedulerLeafQueueInfo.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/CapacitySchedulerLeafQueueInfo.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/CapacitySchedulerLeafQueueInfo.java
index d90e963..bb4c749 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/CapacitySchedulerLeafQueueInfo.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/CapacitySchedulerLeafQueueInfo.java
@@ -32,11 +32,11 @@ public class CapacitySchedulerLeafQueueInfo extends CapacitySchedulerQueueInfo {
   protected int numContainers;
   protected int maxApplications;
   protected int maxApplicationsPerUser;
-  protected int maxActiveApplications;
-  protected int maxActiveApplicationsPerUser;
   protected int userLimit;
   protected UsersInfo users; // To add another level in the XML
   protected float userLimitFactor;
+  protected ResourceInfo aMResourceLimit;
+  protected ResourceInfo userAMResourceLimit;
 
   CapacitySchedulerLeafQueueInfo() {
   };
@@ -48,11 +48,11 @@ public class CapacitySchedulerLeafQueueInfo extends CapacitySchedulerQueueInfo {
     numContainers = q.getNumContainers();
     maxApplications = q.getMaxApplications();
     maxApplicationsPerUser = q.getMaxApplicationsPerUser();
-    maxActiveApplications = q.getMaximumActiveApplications();
-    maxActiveApplicationsPerUser = q.getMaximumActiveApplicationsPerUser();
     userLimit = q.getUserLimit();
     users = new UsersInfo(q.getUsers());
     userLimitFactor = q.getUserLimitFactor();
+    aMResourceLimit = new ResourceInfo(q.getAMResourceLimit());
+    userAMResourceLimit = new ResourceInfo(q.getUserAMResourceLimit());
   }
 
   public int getNumActiveApplications() {
@@ -75,14 +75,6 @@ public class CapacitySchedulerLeafQueueInfo extends CapacitySchedulerQueueInfo {
     return maxApplicationsPerUser;
   }
 
-  public int getMaxActiveApplications() {
-    return maxActiveApplications;
-  }
-
-  public int getMaxActiveApplicationsPerUser() {
-    return maxActiveApplicationsPerUser;
-  }
-
   public int getUserLimit() {
     return userLimit;
   }
@@ -95,4 +87,12 @@ public class CapacitySchedulerLeafQueueInfo extends CapacitySchedulerQueueInfo {
   public float getUserLimitFactor() {
     return userLimitFactor;
   }
+  
+  public ResourceInfo getAMResourceLimit() {
+    return aMResourceLimit;
+  }
+  
+  public ResourceInfo getUserAMResourceLimit() {
+    return userAMResourceLimit; 
+  }
 }

http://git-wip-us.apache.org/repos/asf/hadoop/blob/c53420f5/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/applicationsmanager/MockAsm.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/applicationsmanager/MockAsm.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/applicationsmanager/MockAsm.java
index 62e3e5c..f8d92aa 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/applicationsmanager/MockAsm.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/applicationsmanager/MockAsm.java
@@ -35,6 +35,7 @@ import org.apache.hadoop.yarn.api.records.FinalApplicationStatus;
 import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.ReservationId;
 import org.apache.hadoop.yarn.api.records.Resource;
+import org.apache.hadoop.yarn.api.records.ResourceRequest;
 import org.apache.hadoop.yarn.api.records.YarnApplicationState;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
@@ -51,6 +52,7 @@ import com.google.common.collect.Lists;
 public abstract class MockAsm extends MockApps {
 
   public static class ApplicationBase implements RMApp {
+    ResourceRequest amReq;
     @Override
     public String getUser() {
       throw new UnsupportedOperationException("Not supported yet.");
@@ -183,6 +185,11 @@ public abstract class MockAsm extends MockApps {
     public ReservationId getReservationId() {
       throw new UnsupportedOperationException("Not supported yet.");
     }
+    
+    @Override
+    public ResourceRequest getAMResourceRequest() {
+      return this.amReq; 
+    }
   }
 
   public static RMApp newApplication(int i) {

http://git-wip-us.apache.org/repos/asf/hadoop/blob/c53420f5/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/applicationsmanager/TestAMRMRPCNodeUpdates.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/applicationsmanager/TestAMRMRPCNodeUpdates.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/applicationsmanager/TestAMRMRPCNodeUpdates.java
index e93d351..f4cb3b3 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/applicationsmanager/TestAMRMRPCNodeUpdates.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/applicationsmanager/TestAMRMRPCNodeUpdates.java
@@ -23,6 +23,7 @@ import java.util.List;
 
 import org.junit.Assert;
 
+import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.token.Token;
 import org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest;
@@ -41,6 +42,7 @@ import org.apache.hadoop.yarn.server.resourcemanager.MockRM;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttempt;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.SchedulerEvent;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerConfiguration;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
@@ -55,6 +57,13 @@ public class TestAMRMRPCNodeUpdates {
     dispatcher = new DrainDispatcher();
     this.rm = new MockRM() {
       @Override
+      public void init(Configuration conf) {
+        conf.set(
+          CapacitySchedulerConfiguration.MAXIMUM_APPLICATION_MASTERS_RESOURCE_PERCENT,
+          "1.0");
+        super.init(conf);
+      }
+      @Override
       protected EventHandler<SchedulerEvent> createSchedulerEventDispatcher() {
         return new SchedulerEventDispatcher(this.scheduler) {
           @Override

http://git-wip-us.apache.org/repos/asf/hadoop/blob/c53420f5/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/reservation/TestCapacitySchedulerPlanFollower.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/reservation/TestCapacitySchedulerPlanFollower.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/reservation/TestCapacitySchedulerPlanFollower.java
index c7513ab..b8663f6 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/reservation/TestCapacitySchedulerPlanFollower.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/reservation/TestCapacitySchedulerPlanFollower.java
@@ -82,6 +82,7 @@ public class TestCapacitySchedulerPlanFollower extends TestSchedulerPlanFollower
         .thenReturn(null);
     Mockito.doReturn(rmApp).when(spyApps).get((ApplicationId) Matchers.any());
     when(spyRMContext.getRMApps()).thenReturn(spyApps);
+    when(spyRMContext.getScheduler()).thenReturn(scheduler);
 
     CapacitySchedulerConfiguration csConf =
         new CapacitySchedulerConfiguration();

http://git-wip-us.apache.org/repos/asf/hadoop/blob/c53420f5/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/MockRMApp.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/MockRMApp.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/MockRMApp.java
index 787b5d7..ec990f9 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/MockRMApp.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/MockRMApp.java
@@ -32,6 +32,7 @@ import org.apache.hadoop.yarn.api.records.FinalApplicationStatus;
 import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.ReservationId;
 import org.apache.hadoop.yarn.api.records.Resource;
+import org.apache.hadoop.yarn.api.records.ResourceRequest;
 import org.apache.hadoop.yarn.api.records.YarnApplicationState;
 import org.apache.hadoop.yarn.api.records.impl.pb.ApplicationSubmissionContextPBImpl;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
@@ -55,6 +56,7 @@ public class MockRMApp implements RMApp {
   StringBuilder diagnostics = new StringBuilder();
   RMAppAttempt attempt;
   int maxAppAttempts = 1;
+  ResourceRequest amReq;
 
   public MockRMApp(int newid, long time, RMAppState newState) {
     finish = time;
@@ -264,4 +266,9 @@ public class MockRMApp implements RMApp {
   public ReservationId getReservationId() {
     throw new UnsupportedOperationException("Not supported yet.");
   }
+  
+  @Override
+  public ResourceRequest getAMResourceRequest() {
+    return this.amReq; 
+  }
 }

http://git-wip-us.apache.org/repos/asf/hadoop/blob/c53420f5/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestApplicationLimits.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestApplicationLimits.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestApplicationLimits.java
index 0cd74d0..81a5aad 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestApplicationLimits.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestApplicationLimits.java
@@ -28,16 +28,21 @@ import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
+import org.mockito.Matchers;
+import org.mockito.Mockito;
 
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
 import org.apache.hadoop.yarn.api.records.Priority;
 import org.apache.hadoop.yarn.api.records.QueueACL;
@@ -47,8 +52,10 @@ import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.factories.RecordFactory;
 import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
 import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
+import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.fica.FiCaSchedulerApp;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.fica.FiCaSchedulerNode;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ActiveUsersManager;
 import org.apache.hadoop.yarn.server.resourcemanager.security.RMContainerTokenSecretManager;
 import org.apache.hadoop.yarn.util.resource.DefaultResourceCalculator;
 import org.apache.hadoop.yarn.util.resource.ResourceCalculator;
@@ -56,6 +63,7 @@ import org.apache.hadoop.yarn.util.resource.Resources;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
+import org.junit.Ignore;
 
 public class TestApplicationLimits {
   
@@ -119,8 +127,6 @@ public class TestApplicationLimits {
     // Some default values
     doReturn(100).when(queue).getMaxApplications();
     doReturn(25).when(queue).getMaxApplicationsPerUser();
-    doReturn(10).when(queue).getMaximumActiveApplications();
-    doReturn(2).when(queue).getMaximumActiveApplicationsPerUser();
   }
   
   private static final String A = "a";
@@ -136,10 +142,14 @@ public class TestApplicationLimits {
     final String Q_B = CapacitySchedulerConfiguration.ROOT + "." + B;
     conf.setCapacity(Q_B, 90);
     
+    conf.setUserLimit(CapacitySchedulerConfiguration.ROOT + "." + A, 50);
+    conf.setUserLimitFactor(CapacitySchedulerConfiguration.ROOT + "." + A, 5.0f);
+    
     LOG.info("Setup top-level queues a and b");
   }
 
-  private FiCaSchedulerApp getMockApplication(int appId, String user) {
+  private FiCaSchedulerApp getMockApplication(int appId, String user,
+    Resource amResource) {
     FiCaSchedulerApp application = mock(FiCaSchedulerApp.class);
     ApplicationAttemptId applicationAttemptId =
         TestUtils.getMockApplicationAttemptId(appId, 0);
@@ -147,10 +157,90 @@ public class TestApplicationLimits {
         when(application).getApplicationId();
     doReturn(applicationAttemptId). when(application).getApplicationAttemptId();
     doReturn(user).when(application).getUser();
+    doReturn(amResource).when(application).getAMResource();
     return application;
   }
   
   @Test
+  public void testAMResourceLimit() throws Exception {
+    final String user_0 = "user_0";
+    final String user_1 = "user_1";
+    
+    // This uses the default 10% of cluster value for the max am resources
+    // which are allowed, at 80GB = 8GB for AM's at the queue level.  The user
+    // am limit is 4G initially (based on the queue absolute capacity)
+    // when there is only 1 user, and drops to 2G (the userlimit) when there
+    // is a second user
+    queue.updateClusterResource(Resource.newInstance(80 * GB, 40));
+    
+    ActiveUsersManager activeUsersManager = mock(ActiveUsersManager.class);
+    when(queue.getActiveUsersManager()).thenReturn(activeUsersManager);
+    
+    assertEquals(Resource.newInstance(8 * GB, 1), queue.getAMResourceLimit());
+    assertEquals(Resource.newInstance(4 * GB, 1),
+      queue.getUserAMResourceLimit());
+    
+    // Two apps for user_0, both start
+    int APPLICATION_ID = 0;
+    FiCaSchedulerApp app_0 = getMockApplication(APPLICATION_ID++, user_0, 
+      Resource.newInstance(2 * GB, 1));
+    queue.submitApplicationAttempt(app_0, user_0);
+    assertEquals(1, queue.getNumActiveApplications());
+    assertEquals(0, queue.getNumPendingApplications());
+    assertEquals(1, queue.getNumActiveApplications(user_0));
+    assertEquals(0, queue.getNumPendingApplications(user_0));
+    
+    when(activeUsersManager.getNumActiveUsers()).thenReturn(1);
+
+    FiCaSchedulerApp app_1 = getMockApplication(APPLICATION_ID++, user_0, 
+      Resource.newInstance(2 * GB, 1));
+    queue.submitApplicationAttempt(app_1, user_0);
+    assertEquals(2, queue.getNumActiveApplications());
+    assertEquals(0, queue.getNumPendingApplications());
+    assertEquals(2, queue.getNumActiveApplications(user_0));
+    assertEquals(0, queue.getNumPendingApplications(user_0));
+    
+    // AMLimits unchanged
+    assertEquals(Resource.newInstance(8 * GB, 1), queue.getAMResourceLimit());
+    assertEquals(Resource.newInstance(4 * GB, 1),
+      queue.getUserAMResourceLimit());
+    
+    // One app for user_1, starts
+    FiCaSchedulerApp app_2 = getMockApplication(APPLICATION_ID++, user_1, 
+      Resource.newInstance(2 * GB, 1));
+    queue.submitApplicationAttempt(app_2, user_1);
+    assertEquals(3, queue.getNumActiveApplications());
+    assertEquals(0, queue.getNumPendingApplications());
+    assertEquals(1, queue.getNumActiveApplications(user_1));
+    assertEquals(0, queue.getNumPendingApplications(user_1));
+    
+    when(activeUsersManager.getNumActiveUsers()).thenReturn(2);
+    
+    // Now userAMResourceLimit drops to the queue configured 50% as there is
+    // another user active
+    assertEquals(Resource.newInstance(8 * GB, 1), queue.getAMResourceLimit());
+    assertEquals(Resource.newInstance(2 * GB, 1),
+      queue.getUserAMResourceLimit());
+    
+    // Second user_1 app cannot start
+    FiCaSchedulerApp app_3 = getMockApplication(APPLICATION_ID++, user_1, 
+      Resource.newInstance(2 * GB, 1));
+    queue.submitApplicationAttempt(app_3, user_1);
+    assertEquals(3, queue.getNumActiveApplications());
+    assertEquals(1, queue.getNumPendingApplications());
+    assertEquals(1, queue.getNumActiveApplications(user_1));
+    assertEquals(1, queue.getNumPendingApplications(user_1));
+
+    // Now finish app so another should be activated
+    queue.finishApplicationAttempt(app_2, A);
+    assertEquals(3, queue.getNumActiveApplications());
+    assertEquals(0, queue.getNumPendingApplications());
+    assertEquals(1, queue.getNumActiveApplications(user_1));
+    assertEquals(0, queue.getNumPendingApplications(user_1));
+    
+  }
+  
+  @Test
   public void testLimitsComputation() throws Exception {
     CapacitySchedulerConfiguration csConf = 
         new CapacitySchedulerConfiguration();
@@ -172,7 +262,8 @@ public class TestApplicationLimits {
     when(csContext.getRMContext()).thenReturn(rmContext);
     
     // Say cluster has 100 nodes of 16G each
-    Resource clusterResource = Resources.createResource(100 * 16 * GB, 100 * 16);
+    Resource clusterResource = 
+      Resources.createResource(100 * 16 * GB, 100 * 16);
     when(csContext.getClusterResource()).thenReturn(clusterResource);
     
     Map<String, CSQueue> queues = new HashMap<String, CSQueue>();
@@ -183,28 +274,14 @@ public class TestApplicationLimits {
     LeafQueue queue = (LeafQueue)queues.get(A);
     
     LOG.info("Queue 'A' -" +
-    		" maxActiveApplications=" + queue.getMaximumActiveApplications() + 
-    		" maxActiveApplicationsPerUser=" + 
-    		queue.getMaximumActiveApplicationsPerUser());
-    int expectedMaxActiveApps = 
-        Math.max(1, 
-            (int)Math.ceil(((float)clusterResource.getMemory() / (1*GB)) * 
-                   csConf.
-                     getMaximumApplicationMasterResourcePerQueuePercent(
-                                                        queue.getQueuePath()) *
-                   queue.getAbsoluteMaximumCapacity()));
-    assertEquals(expectedMaxActiveApps, 
-                 queue.getMaximumActiveApplications());
-    int expectedMaxActiveAppsUsingAbsCap = 
-            Math.max(1, 
-                (int)Math.ceil(((float)clusterResource.getMemory() / (1*GB)) * 
-                       csConf.getMaximumApplicationMasterResourcePercent() *
-                       queue.getAbsoluteCapacity()));
-    assertEquals(
-        (int)Math.ceil(
-        		expectedMaxActiveAppsUsingAbsCap * (queue.getUserLimit() / 100.0f) * 
-            queue.getUserLimitFactor()), 
-        queue.getMaximumActiveApplicationsPerUser());
+    		" aMResourceLimit=" + queue.getAMResourceLimit() + 
+    		" UserAMResourceLimit=" + 
+    		queue.getUserAMResourceLimit());
+    
+    assertEquals(queue.getAMResourceLimit(), Resource.newInstance(160*GB, 1));
+    assertEquals(queue.getUserAMResourceLimit(), 
+      Resource.newInstance(80*GB, 1));
+    
     assertEquals(
         (int)(clusterResource.getMemory() * queue.getAbsoluteCapacity()),
         queue.getMetrics().getAvailableMB()
@@ -213,24 +290,11 @@ public class TestApplicationLimits {
     // Add some nodes to the cluster & test new limits
     clusterResource = Resources.createResource(120 * 16 * GB);
     root.updateClusterResource(clusterResource);
-    expectedMaxActiveApps = 
-        Math.max(1, 
-            (int)Math.ceil(((float)clusterResource.getMemory() / (1*GB)) * 
-                   csConf.
-                     getMaximumApplicationMasterResourcePerQueuePercent(
-                                                        queue.getQueuePath()) *
-                   queue.getAbsoluteMaximumCapacity()));
-    assertEquals(expectedMaxActiveApps, 
-                 queue.getMaximumActiveApplications());
-    expectedMaxActiveAppsUsingAbsCap = 
-            Math.max(1, 
-                (int)Math.ceil(((float)clusterResource.getMemory() / (1*GB)) * 
-                       csConf.getMaximumApplicationMasterResourcePercent() *
-                       queue.getAbsoluteCapacity()));
-    assertEquals(
-        (int)Math.ceil(expectedMaxActiveAppsUsingAbsCap * 
-            (queue.getUserLimit() / 100.0f) * queue.getUserLimitFactor()), 
-        queue.getMaximumActiveApplicationsPerUser());
+    
+    assertEquals(queue.getAMResourceLimit(), Resource.newInstance(192*GB, 1));
+    assertEquals(queue.getUserAMResourceLimit(), 
+      Resource.newInstance(96*GB, 1));
+    
     assertEquals(
         (int)(clusterResource.getMemory() * queue.getAbsoluteCapacity()),
         queue.getMetrics().getAvailableMB()
@@ -271,18 +335,15 @@ public class TestApplicationLimits {
     clusterResource = Resources.createResource(100 * 16 * GB);
 
     queue = (LeafQueue)queues.get(A);
-    expectedMaxActiveApps = 
-        Math.max(1, 
-            (int)Math.ceil(((float)clusterResource.getMemory() / (1*GB)) * 
-                   csConf.
-                     getMaximumApplicationMasterResourcePerQueuePercent(
-                                                        queue.getQueuePath()) *
-                   queue.getAbsoluteMaximumCapacity()));
 
     assertEquals((long) 0.5, 
-        (long) csConf.getMaximumApplicationMasterResourcePerQueuePercent(queue.getQueuePath()));
-    assertEquals(expectedMaxActiveApps, 
-        queue.getMaximumActiveApplications());
+        (long) csConf.getMaximumApplicationMasterResourcePerQueuePercent(
+          queue.getQueuePath())
+        );
+    
+    assertEquals(queue.getAMResourceLimit(), Resource.newInstance(800*GB, 1));
+    assertEquals(queue.getUserAMResourceLimit(), 
+      Resource.newInstance(400*GB, 1));
 
     // Change the per-queue max applications.
     csConf.setInt(
@@ -308,10 +369,16 @@ public class TestApplicationLimits {
   public void testActiveApplicationLimits() throws Exception {
     final String user_0 = "user_0";
     final String user_1 = "user_1";
+    final String user_2 = "user_2";
+    
+    assertEquals(Resource.newInstance(16 * GB, 1), queue.getAMResourceLimit());
+    assertEquals(Resource.newInstance(8 * GB, 1),
+      queue.getUserAMResourceLimit());
     
     int APPLICATION_ID = 0;
     // Submit first application
-    FiCaSchedulerApp app_0 = getMockApplication(APPLICATION_ID++, user_0);
+    FiCaSchedulerApp app_0 = getMockApplication(APPLICATION_ID++, user_0,
+      Resources.createResource(4 * GB, 0));
     queue.submitApplicationAttempt(app_0, user_0);
     assertEquals(1, queue.getNumActiveApplications());
     assertEquals(0, queue.getNumPendingApplications());
@@ -319,15 +386,17 @@ public class TestApplicationLimits {
     assertEquals(0, queue.getNumPendingApplications(user_0));
 
     // Submit second application
-    FiCaSchedulerApp app_1 = getMockApplication(APPLICATION_ID++, user_0);
+    FiCaSchedulerApp app_1 = getMockApplication(APPLICATION_ID++, user_0,
+      Resources.createResource(4 * GB, 0));
     queue.submitApplicationAttempt(app_1, user_0);
     assertEquals(2, queue.getNumActiveApplications());
     assertEquals(0, queue.getNumPendingApplications());
     assertEquals(2, queue.getNumActiveApplications(user_0));
     assertEquals(0, queue.getNumPendingApplications(user_0));
     
-    // Submit third application, should remain pending
-    FiCaSchedulerApp app_2 = getMockApplication(APPLICATION_ID++, user_0);
+    // Submit third application, should remain pending due to user amlimit
+    FiCaSchedulerApp app_2 = getMockApplication(APPLICATION_ID++, user_0,
+      Resources.createResource(4 * GB, 0));
     queue.submitApplicationAttempt(app_2, user_0);
     assertEquals(2, queue.getNumActiveApplications());
     assertEquals(1, queue.getNumPendingApplications());
@@ -342,18 +411,17 @@ public class TestApplicationLimits {
     assertEquals(0, queue.getNumPendingApplications(user_0));
     
     // Submit another one for user_0
-    FiCaSchedulerApp app_3 = getMockApplication(APPLICATION_ID++, user_0);
+    FiCaSchedulerApp app_3 = getMockApplication(APPLICATION_ID++, user_0,
+      Resources.createResource(4 * GB, 0));
     queue.submitApplicationAttempt(app_3, user_0);
     assertEquals(2, queue.getNumActiveApplications());
     assertEquals(1, queue.getNumPendingApplications());
     assertEquals(2, queue.getNumActiveApplications(user_0));
     assertEquals(1, queue.getNumPendingApplications(user_0));
     
-    // Change queue limit to be smaller so 2 users can fill it up
-    doReturn(3).when(queue).getMaximumActiveApplications();
-    
     // Submit first app for user_1
-    FiCaSchedulerApp app_4 = getMockApplication(APPLICATION_ID++, user_1);
+    FiCaSchedulerApp app_4 = getMockApplication(APPLICATION_ID++, user_1,
+      Resources.createResource(8 * GB, 0));
     queue.submitApplicationAttempt(app_4, user_1);
     assertEquals(3, queue.getNumActiveApplications());
     assertEquals(1, queue.getNumPendingApplications());
@@ -362,15 +430,17 @@ public class TestApplicationLimits {
     assertEquals(1, queue.getNumActiveApplications(user_1));
     assertEquals(0, queue.getNumPendingApplications(user_1));
 
-    // Submit second app for user_1, should block due to queue-limit
-    FiCaSchedulerApp app_5 = getMockApplication(APPLICATION_ID++, user_1);
-    queue.submitApplicationAttempt(app_5, user_1);
+    // Submit first app for user_2, should block due to queue amlimit
+    FiCaSchedulerApp app_5 = getMockApplication(APPLICATION_ID++, user_2,
+      Resources.createResource(8 * GB, 0));
+    queue.submitApplicationAttempt(app_5, user_2);
     assertEquals(3, queue.getNumActiveApplications());
     assertEquals(2, queue.getNumPendingApplications());
     assertEquals(2, queue.getNumActiveApplications(user_0));
     assertEquals(1, queue.getNumPendingApplications(user_0));
     assertEquals(1, queue.getNumActiveApplications(user_1));
-    assertEquals(1, queue.getNumPendingApplications(user_1));
+    assertEquals(0, queue.getNumPendingApplications(user_1));
+    assertEquals(1, queue.getNumPendingApplications(user_2));
 
     // Now finish one app of user_1 so app_5 should be activated
     queue.finishApplicationAttempt(app_4, A);
@@ -378,21 +448,22 @@ public class TestApplicationLimits {
     assertEquals(1, queue.getNumPendingApplications());
     assertEquals(2, queue.getNumActiveApplications(user_0));
     assertEquals(1, queue.getNumPendingApplications(user_0));
-    assertEquals(1, queue.getNumActiveApplications(user_1));
+    assertEquals(0, queue.getNumActiveApplications(user_1));
     assertEquals(0, queue.getNumPendingApplications(user_1));
+    assertEquals(1, queue.getNumActiveApplications(user_2));
+    assertEquals(0, queue.getNumPendingApplications(user_2));
+    
   }
-
+  
   @Test
   public void testActiveLimitsWithKilledApps() throws Exception {
     final String user_0 = "user_0";
 
     int APPLICATION_ID = 0;
 
-    // set max active to 2
-    doReturn(2).when(queue).getMaximumActiveApplications();
-
     // Submit first application
-    FiCaSchedulerApp app_0 = getMockApplication(APPLICATION_ID++, user_0);
+    FiCaSchedulerApp app_0 = getMockApplication(APPLICATION_ID++, user_0,
+      Resources.createResource(4 * GB, 0));
     queue.submitApplicationAttempt(app_0, user_0);
     assertEquals(1, queue.getNumActiveApplications());
     assertEquals(0, queue.getNumPendingApplications());
@@ -401,7 +472,8 @@ public class TestApplicationLimits {
     assertTrue(queue.activeApplications.contains(app_0));
 
     // Submit second application
-    FiCaSchedulerApp app_1 = getMockApplication(APPLICATION_ID++, user_0);
+    FiCaSchedulerApp app_1 = getMockApplication(APPLICATION_ID++, user_0,
+      Resources.createResource(4 * GB, 0));
     queue.submitApplicationAttempt(app_1, user_0);
     assertEquals(2, queue.getNumActiveApplications());
     assertEquals(0, queue.getNumPendingApplications());
@@ -410,7 +482,8 @@ public class TestApplicationLimits {
     assertTrue(queue.activeApplications.contains(app_1));
 
     // Submit third application, should remain pending
-    FiCaSchedulerApp app_2 = getMockApplication(APPLICATION_ID++, user_0);
+    FiCaSchedulerApp app_2 = getMockApplication(APPLICATION_ID++, user_0,
+      Resources.createResource(4 * GB, 0));
     queue.submitApplicationAttempt(app_2, user_0);
     assertEquals(2, queue.getNumActiveApplications());
     assertEquals(1, queue.getNumPendingApplications());
@@ -419,7 +492,8 @@ public class TestApplicationLimits {
     assertTrue(queue.pendingApplications.contains(app_2));
 
     // Submit fourth application, should remain pending
-    FiCaSchedulerApp app_3 = getMockApplication(APPLICATION_ID++, user_0);
+    FiCaSchedulerApp app_3 = getMockApplication(APPLICATION_ID++, user_0,
+      Resources.createResource(4 * GB, 0));
     queue.submitApplicationAttempt(app_3, user_0);
     assertEquals(2, queue.getNumActiveApplications());
     assertEquals(2, queue.getNumPendingApplications());
@@ -506,6 +580,18 @@ public class TestApplicationLimits {
     RecordFactory recordFactory = 
         RecordFactoryProvider.getRecordFactory(null);
     RMContext rmContext = TestUtils.getMockRMContext();
+    RMContext spyRMContext = spy(rmContext);
+    
+    ConcurrentMap<ApplicationId, RMApp> spyApps = 
+        spy(new ConcurrentHashMap<ApplicationId, RMApp>());
+    RMApp rmApp = mock(RMApp.class);
+    ResourceRequest amResourceRequest = mock(ResourceRequest.class);
+    Resource amResource = Resources.createResource(0, 0);
+    when(amResourceRequest.getCapability()).thenReturn(amResource);
+    when(rmApp.getAMResourceRequest()).thenReturn(amResourceRequest);
+    Mockito.doReturn(rmApp).when(spyApps).get((ApplicationId)Matchers.any());
+    when(spyRMContext.getRMApps()).thenReturn(spyApps);
+    
 
     Priority priority_1 = TestUtils.createMockPriority(1);
 
@@ -513,9 +599,9 @@ public class TestApplicationLimits {
     // and check headroom
     final ApplicationAttemptId appAttemptId_0_0 = 
         TestUtils.getMockApplicationAttemptId(0, 0); 
-    FiCaSchedulerApp app_0_0 = 
-        spy(new FiCaSchedulerApp(appAttemptId_0_0, user_0, queue, 
-            queue.getActiveUsersManager(), rmContext));
+    FiCaSchedulerApp app_0_0 = new FiCaSchedulerApp(
+      appAttemptId_0_0, user_0, queue, 
+            queue.getActiveUsersManager(), spyRMContext);
     queue.submitApplicationAttempt(app_0_0, user_0);
 
     List<ResourceRequest> app_0_0_requests = new ArrayList<ResourceRequest>();
@@ -532,9 +618,9 @@ public class TestApplicationLimits {
     // Submit second application from user_0, check headroom
     final ApplicationAttemptId appAttemptId_0_1 = 
         TestUtils.getMockApplicationAttemptId(1, 0); 
-    FiCaSchedulerApp app_0_1 = 
-        spy(new FiCaSchedulerApp(appAttemptId_0_1, user_0, queue, 
-            queue.getActiveUsersManager(), rmContext));
+    FiCaSchedulerApp app_0_1 = new FiCaSchedulerApp(
+      appAttemptId_0_1, user_0, queue, 
+            queue.getActiveUsersManager(), spyRMContext);
     queue.submitApplicationAttempt(app_0_1, user_0);
     
     List<ResourceRequest> app_0_1_requests = new ArrayList<ResourceRequest>();
@@ -551,9 +637,9 @@ public class TestApplicationLimits {
     // Submit first application from user_1, check  for new headroom
     final ApplicationAttemptId appAttemptId_1_0 = 
         TestUtils.getMockApplicationAttemptId(2, 0); 
-    FiCaSchedulerApp app_1_0 = 
-        spy(new FiCaSchedulerApp(appAttemptId_1_0, user_1, queue, 
-            queue.getActiveUsersManager(), rmContext));
+    FiCaSchedulerApp app_1_0 = new FiCaSchedulerApp(
+      appAttemptId_1_0, user_1, queue, 
+            queue.getActiveUsersManager(), spyRMContext);
     queue.submitApplicationAttempt(app_1_0, user_1);
 
     List<ResourceRequest> app_1_0_requests = new ArrayList<ResourceRequest>();

http://git-wip-us.apache.org/repos/asf/hadoop/blob/c53420f5/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestLeafQueue.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestLeafQueue.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestLeafQueue.java
index fb7bb2c..ead5719 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestLeafQueue.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestLeafQueue.java
@@ -101,6 +101,7 @@ public class TestLeafQueue {
 
   RMContext rmContext;
   RMContext spyRMContext;
+  ResourceRequest amResourceRequest;
   CapacityScheduler cs;
   CapacitySchedulerConfiguration csConf;
   CapacitySchedulerContext csContext;
@@ -124,6 +125,10 @@ public class TestLeafQueue {
         spy(new ConcurrentHashMap<ApplicationId, RMApp>());
     RMApp rmApp = mock(RMApp.class);
     when(rmApp.getRMAppAttempt((ApplicationAttemptId)Matchers.any())).thenReturn(null);
+    amResourceRequest = mock(ResourceRequest.class);
+    when(amResourceRequest.getCapability()).thenReturn(
+      Resources.createResource(0, 0));
+    when(rmApp.getAMResourceRequest()).thenReturn(amResourceRequest);
     Mockito.doReturn(rmApp).when(spyApps).get((ApplicationId)Matchers.any());
     when(spyRMContext.getRMApps()).thenReturn(spyApps);
     
@@ -265,26 +270,37 @@ public class TestLeafQueue {
   
   @Test
   public void testInitializeQueue() throws Exception {
-	  final float epsilon = 1e-5f;
-	  //can add more sturdy test with 3-layer queues 
-	  //once MAPREDUCE:3410 is resolved
-	  LeafQueue a = stubLeafQueue((LeafQueue)queues.get(A));
-	  assertEquals(0.085, a.getCapacity(), epsilon);
-	  assertEquals(0.085, a.getAbsoluteCapacity(), epsilon);
-	  assertEquals(0.2, a.getMaximumCapacity(), epsilon);
-	  assertEquals(0.2, a.getAbsoluteMaximumCapacity(), epsilon);
+    final float epsilon = 1e-5f;
+    //can add more sturdy test with 3-layer queues 
+    //once MAPREDUCE:3410 is resolved
+    LeafQueue a = stubLeafQueue((LeafQueue)queues.get(A));
+    assertEquals(0.085, a.getCapacity(), epsilon);
+    assertEquals(0.085, a.getAbsoluteCapacity(), epsilon);
+    assertEquals(0.2, a.getMaximumCapacity(), epsilon);
+    assertEquals(0.2, a.getAbsoluteMaximumCapacity(), epsilon);
+    
+    LeafQueue b = stubLeafQueue((LeafQueue)queues.get(B));
+    assertEquals(0.80, b.getCapacity(), epsilon);
+    assertEquals(0.80, b.getAbsoluteCapacity(), epsilon);
+    assertEquals(0.99, b.getMaximumCapacity(), epsilon);
+    assertEquals(0.99, b.getAbsoluteMaximumCapacity(), epsilon);
+    
+    ParentQueue c = (ParentQueue)queues.get(C);
+    assertEquals(0.015, c.getCapacity(), epsilon);
+    assertEquals(0.015, c.getAbsoluteCapacity(), epsilon);
+    assertEquals(0.1, c.getMaximumCapacity(), epsilon);
+    assertEquals(0.1, c.getAbsoluteMaximumCapacity(), epsilon);
+
+	  //Verify the value for getAMResourceLimit for queues with < .1 maxcap
+	  Resource clusterResource = Resource.newInstance(50 * GB, 50);
 	  
-	  LeafQueue b = stubLeafQueue((LeafQueue)queues.get(B));
-	  assertEquals(0.80, b.getCapacity(), epsilon);
-	  assertEquals(0.80, b.getAbsoluteCapacity(), epsilon);
-	  assertEquals(0.99, b.getMaximumCapacity(), epsilon);
-	  assertEquals(0.99, b.getAbsoluteMaximumCapacity(), epsilon);
-
-	  ParentQueue c = (ParentQueue)queues.get(C);
-	  assertEquals(0.015, c.getCapacity(), epsilon);
-	  assertEquals(0.015, c.getAbsoluteCapacity(), epsilon);
-	  assertEquals(0.1, c.getMaximumCapacity(), epsilon);
-	  assertEquals(0.1, c.getAbsoluteMaximumCapacity(), epsilon);
+	  a.updateClusterResource(clusterResource);
+	  assertEquals(Resource.newInstance(1 * GB, 1), 
+	    a.getAMResourceLimit());
+    
+	  b.updateClusterResource(clusterResource);
+	  assertEquals(Resource.newInstance(5 * GB, 1), 
+	    b.getAMResourceLimit());
   }
  
   @Test
@@ -679,7 +695,7 @@ public class TestLeafQueue {
               TestUtils.getMockApplicationAttemptId(0, 0);
     FiCaSchedulerApp app_0 =
         new FiCaSchedulerApp(appAttemptId_0, user_0, qb,
-            qb.getActiveUsersManager(), rmContext);
+            qb.getActiveUsersManager(), spyRMContext);
     qb.submitApplicationAttempt(app_0, user_0);
     Priority u0Priority = TestUtils.createMockPriority(1);
     app_0.updateResourceRequests(Collections.singletonList(
@@ -702,7 +718,7 @@ public class TestLeafQueue {
         TestUtils.getMockApplicationAttemptId(2, 0);
     FiCaSchedulerApp app_2 =
         new FiCaSchedulerApp(appAttemptId_2, user_1, qb,
-            qb.getActiveUsersManager(), rmContext);
+            qb.getActiveUsersManager(), spyRMContext);
     Priority u1Priority = TestUtils.createMockPriority(2);
     app_2.updateResourceRequests(Collections.singletonList(
         TestUtils.createResourceRequest(ResourceRequest.ANY, 4*GB, 1, true,
@@ -736,12 +752,12 @@ public class TestLeafQueue {
         TestUtils.getMockApplicationAttemptId(1, 0);
     FiCaSchedulerApp app_1 =
         new FiCaSchedulerApp(appAttemptId_1, user_0, qb,
-            qb.getActiveUsersManager(), rmContext);
+            qb.getActiveUsersManager(), spyRMContext);
     final ApplicationAttemptId appAttemptId_3 =
         TestUtils.getMockApplicationAttemptId(3, 0);
     FiCaSchedulerApp app_3 =
         new FiCaSchedulerApp(appAttemptId_3, user_1, qb,
-            qb.getActiveUsersManager(), rmContext);
+            qb.getActiveUsersManager(), spyRMContext);
     app_1.updateResourceRequests(Collections.singletonList(
         TestUtils.createResourceRequest(ResourceRequest.ANY, 2*GB, 1, true,
             u0Priority, recordFactory)));
@@ -764,7 +780,7 @@ public class TestLeafQueue {
               TestUtils.getMockApplicationAttemptId(4, 0);
     FiCaSchedulerApp app_4 =
               new FiCaSchedulerApp(appAttemptId_4, user_0, qb,
-                      qb.getActiveUsersManager(), rmContext);
+                      qb.getActiveUsersManager(), spyRMContext);
     qb.submitApplicationAttempt(app_4, user_0);
     app_4.updateResourceRequests(Collections.singletonList(
               TestUtils.createResourceRequest(ResourceRequest.ANY, 6*GB, 1, true,
@@ -980,7 +996,6 @@ public class TestLeafQueue {
     assertEquals(0*GB, app_1.getHeadroom().getMemory());
     
     // Check headroom for app_2 
-    LOG.info("here");
     app_1.updateResourceRequests(Collections.singletonList(     // unset
         TestUtils.createResourceRequest(ResourceRequest.ANY, 1*GB, 0, true,
             priority, recordFactory)));
@@ -1904,6 +1919,9 @@ public class TestLeafQueue {
 
     // Users
     final String user_e = "user_e";
+    
+    when(amResourceRequest.getCapability()).thenReturn(
+      Resources.createResource(1 * GB, 0));
 
     // Submit applications
     final ApplicationAttemptId appAttemptId_0 =
@@ -1942,7 +1960,7 @@ public class TestLeafQueue {
             newQueues, queues,
             TestUtils.spyHook);
     queues = newQueues;
-    root.reinitialize(newRoot, cs.getClusterResource());
+    root.reinitialize(newRoot, csContext.getClusterResource());
 
     // after reinitialization
     assertEquals(3, e.activeApplications.size());
@@ -1982,6 +2000,9 @@ public class TestLeafQueue {
 
     // Users
     final String user_e = "user_e";
+    
+    when(amResourceRequest.getCapability()).thenReturn(
+      Resources.createResource(1 * GB, 0));
 
     // Submit applications
     final ApplicationAttemptId appAttemptId_0 =
@@ -2291,20 +2312,20 @@ public class TestLeafQueue {
     csConf.setCapacity(CapacitySchedulerConfiguration.ROOT + "." + A, 80);
     LeafQueue a = new LeafQueue(csContext, A, root, null);
     assertEquals(0.1f, a.getMaxAMResourcePerQueuePercent(), 1e-3f);
-    assertEquals(160, a.getMaximumActiveApplications());
+    assertEquals(a.getAMResourceLimit(), Resources.createResource(160 * GB, 1));
     
     csConf.setFloat(CapacitySchedulerConfiguration.
         MAXIMUM_APPLICATION_MASTERS_RESOURCE_PERCENT, 0.2f);
     LeafQueue newA = new LeafQueue(csContext, A, root, null);
     a.reinitialize(newA, clusterResource);
     assertEquals(0.2f, a.getMaxAMResourcePerQueuePercent(), 1e-3f);
-    assertEquals(320, a.getMaximumActiveApplications());
+    assertEquals(a.getAMResourceLimit(), Resources.createResource(320 * GB, 1));
 
     Resource newClusterResource = Resources.createResource(100 * 20 * GB,
         100 * 32);
     a.updateClusterResource(newClusterResource);
     //  100 * 20 * 0.2 = 400
-    assertEquals(400, a.getMaximumActiveApplications());
+    assertEquals(a.getAMResourceLimit(), Resources.createResource(400 * GB, 1));
   }
   
   @Test

http://git-wip-us.apache.org/repos/asf/hadoop/blob/c53420f5/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestReservations.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestReservations.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestReservations.java
index 2a49545..985609e 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestReservations.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestReservations.java
@@ -77,6 +77,7 @@ public class TestReservations {
       .getRecordFactory(null);
 
   RMContext rmContext;
+  RMContext spyRMContext;
   CapacityScheduler cs;
   // CapacitySchedulerConfiguration csConf;
   CapacitySchedulerContext csContext;
@@ -132,7 +133,10 @@ public class TestReservations {
     root = CapacityScheduler.parseQueue(csContext, csConf, null,
         CapacitySchedulerConfiguration.ROOT, queues, queues, TestUtils.spyHook);
 
-    cs.setRMContext(rmContext);
+    spyRMContext = spy(rmContext);
+    when(spyRMContext.getScheduler()).thenReturn(cs);
+    
+    cs.setRMContext(spyRMContext);
     cs.init(csConf);
     cs.start();
   }
@@ -212,14 +216,14 @@ public class TestReservations {
     final ApplicationAttemptId appAttemptId_0 = TestUtils
         .getMockApplicationAttemptId(0, 0);
     FiCaSchedulerApp app_0 = new FiCaSchedulerApp(appAttemptId_0, user_0, a,
-        mock(ActiveUsersManager.class), rmContext);
+        mock(ActiveUsersManager.class), spyRMContext);
 
     a.submitApplicationAttempt(app_0, user_0); 
 
     final ApplicationAttemptId appAttemptId_1 = TestUtils
         .getMockApplicationAttemptId(1, 0);
     FiCaSchedulerApp app_1 = new FiCaSchedulerApp(appAttemptId_1, user_0, a,
-        mock(ActiveUsersManager.class), rmContext);
+        mock(ActiveUsersManager.class), spyRMContext);
     a.submitApplicationAttempt(app_1, user_0); 
 
     // Setup some nodes
@@ -361,14 +365,14 @@ public class TestReservations {
     final ApplicationAttemptId appAttemptId_0 = TestUtils
         .getMockApplicationAttemptId(0, 0);
     FiCaSchedulerApp app_0 = new FiCaSchedulerApp(appAttemptId_0, user_0, a,
-        mock(ActiveUsersManager.class), rmContext);
+        mock(ActiveUsersManager.class), spyRMContext);
 
     a.submitApplicationAttempt(app_0, user_0); 
 
     final ApplicationAttemptId appAttemptId_1 = TestUtils
         .getMockApplicationAttemptId(1, 0);
     FiCaSchedulerApp app_1 = new FiCaSchedulerApp(appAttemptId_1, user_0, a,
-        mock(ActiveUsersManager.class), rmContext);
+        mock(ActiveUsersManager.class), spyRMContext);
     a.submitApplicationAttempt(app_1, user_0); 
 
     // Setup some nodes
@@ -506,14 +510,14 @@ public class TestReservations {
     final ApplicationAttemptId appAttemptId_0 = TestUtils
         .getMockApplicationAttemptId(0, 0);
     FiCaSchedulerApp app_0 = new FiCaSchedulerApp(appAttemptId_0, user_0, a,
-        mock(ActiveUsersManager.class), rmContext);
+        mock(ActiveUsersManager.class), spyRMContext);
 
     a.submitApplicationAttempt(app_0, user_0); 
 
     final ApplicationAttemptId appAttemptId_1 = TestUtils
         .getMockApplicationAttemptId(1, 0);
     FiCaSchedulerApp app_1 = new FiCaSchedulerApp(appAttemptId_1, user_0, a,
-        mock(ActiveUsersManager.class), rmContext);
+        mock(ActiveUsersManager.class), spyRMContext);
     a.submitApplicationAttempt(app_1, user_0); 
 
     // Setup some nodes
@@ -618,7 +622,7 @@ public class TestReservations {
         .getMockApplicationAttemptId(0, 0);
     LeafQueue a = stubLeafQueue((LeafQueue) queues.get(A));
     FiCaSchedulerApp app_0 = new FiCaSchedulerApp(appAttemptId_0, user_0, a,
-        mock(ActiveUsersManager.class), rmContext);
+        mock(ActiveUsersManager.class), spyRMContext);
 
     String host_0 = "host_0";
     FiCaSchedulerNode node_0 = TestUtils.getMockNode(host_0, DEFAULT_RACK, 0,
@@ -685,7 +689,7 @@ public class TestReservations {
         .getMockApplicationAttemptId(0, 0);
     LeafQueue a = stubLeafQueue((LeafQueue) queues.get(A));
     FiCaSchedulerApp app_0 = new FiCaSchedulerApp(appAttemptId_0, user_0, a,
-        mock(ActiveUsersManager.class), rmContext);
+        mock(ActiveUsersManager.class), spyRMContext);
 
     String host_1 = "host_1";
     FiCaSchedulerNode node_1 = TestUtils.getMockNode(host_1, DEFAULT_RACK, 0,
@@ -742,14 +746,14 @@ public class TestReservations {
     final ApplicationAttemptId appAttemptId_0 = TestUtils
         .getMockApplicationAttemptId(0, 0);
     FiCaSchedulerApp app_0 = new FiCaSchedulerApp(appAttemptId_0, user_0, a,
-        mock(ActiveUsersManager.class), rmContext);
+        mock(ActiveUsersManager.class), spyRMContext);
 
     a.submitApplicationAttempt(app_0, user_0); 
 
     final ApplicationAttemptId appAttemptId_1 = TestUtils
         .getMockApplicationAttemptId(1, 0);
     FiCaSchedulerApp app_1 = new FiCaSchedulerApp(appAttemptId_1, user_0, a,
-        mock(ActiveUsersManager.class), rmContext);
+        mock(ActiveUsersManager.class), spyRMContext);
     a.submitApplicationAttempt(app_1, user_0); 
 
     // Setup some nodes
@@ -916,14 +920,14 @@ public class TestReservations {
     final ApplicationAttemptId appAttemptId_0 = TestUtils
         .getMockApplicationAttemptId(0, 0);
     FiCaSchedulerApp app_0 = new FiCaSchedulerApp(appAttemptId_0, user_0, a,
-        mock(ActiveUsersManager.class), rmContext);
+        mock(ActiveUsersManager.class), spyRMContext);
 
     a.submitApplicationAttempt(app_0, user_0); 
 
     final ApplicationAttemptId appAttemptId_1 = TestUtils
         .getMockApplicationAttemptId(1, 0);
     FiCaSchedulerApp app_1 = new FiCaSchedulerApp(appAttemptId_1, user_0, a,
-        mock(ActiveUsersManager.class), rmContext);
+        mock(ActiveUsersManager.class), spyRMContext);
     a.submitApplicationAttempt(app_1, user_0); 
 
     // Setup some nodes
@@ -1042,14 +1046,14 @@ public class TestReservations {
     final ApplicationAttemptId appAttemptId_0 = TestUtils
         .getMockApplicationAttemptId(0, 0);
     FiCaSchedulerApp app_0 = new FiCaSchedulerApp(appAttemptId_0, user_0, a,
-        mock(ActiveUsersManager.class), rmContext);
+        mock(ActiveUsersManager.class), spyRMContext);
 
     a.submitApplicationAttempt(app_0, user_0); 
 
     final ApplicationAttemptId appAttemptId_1 = TestUtils
         .getMockApplicationAttemptId(1, 0);
     FiCaSchedulerApp app_1 = new FiCaSchedulerApp(appAttemptId_1, user_0, a,
-        mock(ActiveUsersManager.class), rmContext);
+        mock(ActiveUsersManager.class), spyRMContext);
     a.submitApplicationAttempt(app_1, user_0); 
 
     // Setup some nodes


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