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From sun...@apache.org
Subject hadoop git commit: YARN-7638. Unit tests related to preemption for auto created leaf queues feature.Contributed by Suma Shivaprasad.
Date Fri, 15 Dec 2017 07:31:13 GMT
Repository: hadoop
Updated Branches:
  refs/heads/trunk ee028bfdf -> 890d3d064


YARN-7638. Unit tests related to preemption for auto created leaf queues feature.Contributed
by Suma Shivaprasad.


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/890d3d06
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/890d3d06
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/890d3d06

Branch: refs/heads/trunk
Commit: 890d3d06456a026d9551a0cf15ce3986b0641454
Parents: ee028bf
Author: Sunil G <sunilg@apache.org>
Authored: Fri Dec 15 13:00:57 2017 +0530
Committer: Sunil G <sunilg@apache.org>
Committed: Fri Dec 15 13:00:57 2017 +0530

----------------------------------------------------------------------
 .../scheduler/capacity/LeafQueue.java           |  10 +-
 ...stCapacitySchedulerAutoCreatedQueueBase.java |  38 +---
 ...citySchedulerAutoCreatedQueuePreemption.java | 202 +++++++++++++++++++
 ...TestCapacitySchedulerSurgicalPreemption.java |  62 ++++--
 4 files changed, 260 insertions(+), 52 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hadoop/blob/890d3d06/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 ac1a26c..329f7de 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
@@ -296,6 +296,10 @@ public class LeafQueue extends AbstractCSQueue {
               + queueCapacities.getAbsoluteMaximumCapacity()
               + " [= 1.0 maximumCapacity undefined, "
               + "(parentAbsoluteMaxCapacity * maximumCapacity) / 100 otherwise ]"
+              + "\n" + "effectiveMinResource=" +
+              getEffectiveCapacity(CommonNodeLabelsManager.NO_LABEL) + "\n"
+              + " , effectiveMaxResource=" +
+              getEffectiveMaxCapacity(CommonNodeLabelsManager.NO_LABEL)
               + "\n" + "userLimit = " + usersManager.getUserLimit()
               + " [= configuredUserLimit ]" + "\n" + "userLimitFactor = "
               + usersManager.getUserLimitFactor()
@@ -502,7 +506,11 @@ public class LeafQueue extends AbstractCSQueue {
           + ", " + "usedResources=" + queueUsage.getUsed() + ", "
           + "usedCapacity=" + getUsedCapacity() + ", " + "absoluteUsedCapacity="
           + getAbsoluteUsedCapacity() + ", " + "numApps=" + getNumApplications()
-          + ", " + "numContainers=" + getNumContainers();
+          + ", " + "numContainers=" + getNumContainers() + ", "
+          + "effectiveMinResource=" +
+          getEffectiveCapacity(CommonNodeLabelsManager.NO_LABEL) +
+          " , effectiveMaxResource=" +
+          getEffectiveMaxCapacity(CommonNodeLabelsManager.NO_LABEL);
     } finally {
       readLock.unlock();
     }

http://git-wip-us.apache.org/repos/asf/hadoop/blob/890d3d06/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestCapacitySchedulerAutoCreatedQueueBase.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/TestCapacitySchedulerAutoCreatedQueueBase.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/TestCapacitySchedulerAutoCreatedQueueBase.java
index 035c460..d8d71c7 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/TestCapacitySchedulerAutoCreatedQueueBase.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/TestCapacitySchedulerAutoCreatedQueueBase.java
@@ -184,7 +184,7 @@ public class TestCapacitySchedulerAutoCreatedQueueBase {
     conf.setClass(YarnConfiguration.RM_SCHEDULER, CapacityScheduler.class,
         ResourceScheduler.class);
 
-    setupQueueMappings(conf, PARENT_QUEUE, true, new int[] {0, 1, 2, 3});
+    setupQueueMappings(conf, PARENT_QUEUE, true, new int[] { 0, 1, 2, 3 });
 
     dispatcher = new SpyDispatcher();
     rmAppEventEventHandler = new SpyDispatcher.SpyRMAppEventHandler();
@@ -233,8 +233,8 @@ public class TestCapacitySchedulerAutoCreatedQueueBase {
     queuePlacementRules.add(YarnConfiguration.USER_GROUP_PLACEMENT_RULE);
     conf.setQueuePlacementRules(queuePlacementRules);
 
-    List<UserGroupMappingPlacementRule.QueueMapping> existingMappings = conf
-        .getQueueMappings();
+    List<UserGroupMappingPlacementRule.QueueMapping> existingMappings =
+        conf.getQueueMappings();
 
     //set queue mapping
     List<UserGroupMappingPlacementRule.QueueMapping> queueMappings =
@@ -244,8 +244,8 @@ public class TestCapacitySchedulerAutoCreatedQueueBase {
       UserGroupMappingPlacementRule.QueueMapping userQueueMapping =
           new UserGroupMappingPlacementRule.QueueMapping(
               UserGroupMappingPlacementRule.QueueMapping.MappingType.USER,
-              USER + userIds[i], getQueueMapping(parentQueue, USER +
-              userIds[i]));
+              USER + userIds[i],
+              getQueueMapping(parentQueue, USER + userIds[i]));
       queueMappings.add(userQueueMapping);
     }
 
@@ -439,34 +439,6 @@ public class TestCapacitySchedulerAutoCreatedQueueBase {
     return newMockRM;
   }
 
-  protected void checkQueueCapacities(CapacityScheduler newCS, float capacityC,
-      float capacityD) {
-    CSQueue rootQueue = newCS.getRootQueue();
-    CSQueue queueC = tcs.findQueue(rootQueue, C);
-    CSQueue queueD = tcs.findQueue(rootQueue, D);
-    CSQueue queueC1 = tcs.findQueue(queueC, C1);
-    CSQueue queueC2 = tcs.findQueue(queueC, C2);
-    CSQueue queueC3 = tcs.findQueue(queueC, C3);
-
-    float capC = capacityC / 100.0f;
-    float capD = capacityD / 100.0f;
-
-    tcs.checkQueueCapacity(queueC, capC, capC, 1.0f, 1.0f);
-    tcs.checkQueueCapacity(queueD, capD, capD, 1.0f, 1.0f);
-    tcs.checkQueueCapacity(queueC1, C1_CAPACITY / 100.0f,
-        (C1_CAPACITY / 100.0f) * capC, 1.0f, 1.0f);
-    tcs.checkQueueCapacity(queueC2, C2_CAPACITY / 100.0f,
-        (C2_CAPACITY / 100.0f) * capC, 1.0f, 1.0f);
-
-    if (queueC3 != null) {
-      ManagedParentQueue parentQueue = (ManagedParentQueue) queueC;
-      QueueCapacities cap =
-          parentQueue.getLeafQueueTemplate().getQueueCapacities();
-      tcs.checkQueueCapacity(queueC3, cap.getCapacity(),
-          (cap.getCapacity()) * capC, 1.0f, 1.0f);
-    }
-  }
-
   static String getQueueMapping(String parentQueue, String leafQueue) {
     return parentQueue + DOT + leafQueue;
   }

http://git-wip-us.apache.org/repos/asf/hadoop/blob/890d3d06/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestCapacitySchedulerAutoCreatedQueuePreemption.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/TestCapacitySchedulerAutoCreatedQueuePreemption.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/TestCapacitySchedulerAutoCreatedQueuePreemption.java
new file mode 100644
index 0000000..a025f1e
--- /dev/null
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestCapacitySchedulerAutoCreatedQueuePreemption.java
@@ -0,0 +1,202 @@
+/**
+ * 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
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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.scheduler.capacity;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.apache.hadoop.yarn.server.resourcemanager.scheduler
+    .capacity.TestCapacitySchedulerAutoCreatedQueueBase.C;
+import static org.apache.hadoop.yarn.server.resourcemanager.scheduler
+    .capacity.TestCapacitySchedulerAutoCreatedQueueBase.D;
+import static org.apache.hadoop.yarn.server.resourcemanager.scheduler
+    .capacity.TestCapacitySchedulerAutoCreatedQueueBase.E;
+import static org.apache.hadoop.yarn.server.resourcemanager.scheduler
+    .capacity.TestCapacitySchedulerAutoCreatedQueueBase.USER0;
+import static org.apache.hadoop.yarn.server.resourcemanager.scheduler
+    .capacity.TestCapacitySchedulerAutoCreatedQueueBase.USER1;
+import static org.apache.hadoop.yarn.server.resourcemanager.scheduler
+    .capacity.TestCapacitySchedulerAutoCreatedQueueBase.USER2;
+import static org.apache.hadoop.yarn.server.resourcemanager.scheduler
+    .capacity.TestCapacitySchedulerAutoCreatedQueueBase.USER3;
+
+/**
+ * Tests various preemption cases on auto-created leaf queues. All
+ * auto-created leaf queues will end up having same priority since they are set
+ * from template. Priority on ManagedParent Queues can be set however and
+ * priority based premption cases are based on that.
+ */
+public class TestCapacitySchedulerAutoCreatedQueuePreemption
+    extends TestCapacitySchedulerSurgicalPreemption {
+
+  @Override
+  @Before
+  public void setUp() throws Exception {
+    super.setUp();
+  }
+
+  public static CapacitySchedulerConfiguration
+      setupQueueConfigurationForSimpleSurgicalPreemption(
+      CapacitySchedulerConfiguration conf) {
+
+    //set up auto created queue configs
+    TestCapacitySchedulerAutoCreatedQueueBase.setupQueueMappings(conf, "c",
+        true, new int[] { 1, 2 });
+    //setup new queues with one of them auto enabled
+    // Define top-level queues
+    // Set childQueue for root
+    conf.setQueues(CapacitySchedulerConfiguration.ROOT, new String[] { "c" });
+    conf.setCapacity(C, 100f);
+
+    conf.setUserLimitFactor(C, 1.0f);
+    conf.setAutoCreateChildQueueEnabled(C, true);
+
+    //Setup leaf queue template configs
+    conf.setAutoCreatedLeafQueueConfigCapacity(C, 30.0f);
+    conf.setAutoCreatedLeafQueueConfigMaxCapacity(C, 100.0f);
+    conf.setAutoCreatedLeafQueueConfigUserLimit(C, 100);
+    conf.setAutoCreatedLeafQueueConfigUserLimitFactor(C, 3.0f);
+
+    return conf;
+  }
+
+  protected CapacitySchedulerConfiguration
+      setupQueueConfigurationForPriorityBasedPreemption(
+      CapacitySchedulerConfiguration conf) {
+
+    //set up auto created queue configs
+    TestCapacitySchedulerAutoCreatedQueueBase.setupQueueMappings(conf, "c",
+        true, new int[] { 1, 2 });
+
+    TestCapacitySchedulerAutoCreatedQueueBase.setupQueueMappings(conf, "d",
+        true, new int[] { 3, 4 });
+
+    TestCapacitySchedulerAutoCreatedQueueBase.setupQueueMappings(conf, "e",
+        true, new int[] { 0 });
+    //setup new queues with one of them auto enabled
+    // Define top-level queues
+    // Set childQueue for root
+    conf.setQueues(CapacitySchedulerConfiguration.ROOT,
+        new String[] { "c", "d", "e" });
+    conf.setCapacity(C, 45f);
+    conf.setCapacity(D, 45f);
+    conf.setCapacity(E, 10f);
+
+    conf.setUserLimitFactor(E, 3.0f);
+    conf.setUserLimitFactor(C, 3.0f);
+    conf.setUserLimitFactor(D, 3.0f);
+    conf.setAutoCreateChildQueueEnabled(C, true);
+    conf.setAutoCreateChildQueueEnabled(D, true);
+    conf.setAutoCreateChildQueueEnabled(E, true);
+
+    //Setup leaf queue template configs
+    conf.setAutoCreatedLeafQueueConfigCapacity(C, 100f);
+    conf.setAutoCreatedLeafQueueConfigMaxCapacity(C, 100.0f);
+    conf.setAutoCreatedLeafQueueConfigUserLimit(C, 100);
+    conf.setAutoCreatedLeafQueueConfigUserLimitFactor(C, 3.0f);
+
+    conf.setAutoCreatedLeafQueueConfigCapacity(D, 100.0f);
+    conf.setAutoCreatedLeafQueueConfigMaxCapacity(D, 100.0f);
+    conf.setAutoCreatedLeafQueueConfigUserLimit(D, 100);
+    conf.setAutoCreatedLeafQueueConfigUserLimitFactor(D, 3.0f);
+
+    conf.setAutoCreatedLeafQueueConfigCapacity(E, 100.0f);
+    conf.setAutoCreatedLeafQueueConfigMaxCapacity(E, 100.0f);
+    conf.setAutoCreatedLeafQueueConfigUserLimit(E, 100);
+    conf.setAutoCreatedLeafQueueConfigUserLimitFactor(E, 3.0f);
+
+    conf.setQueuePriority(CapacitySchedulerConfiguration.ROOT + ".c", 1);
+    conf.setQueuePriority(CapacitySchedulerConfiguration.ROOT + ".d", 2);
+
+    return conf;
+  }
+
+  @Test(timeout = 60000)
+  public void testSimpleSurgicalPreemptionOnAutoCreatedLeafQueues()
+      throws Exception {
+    /**
+     * Test case: Submit two application (app1/app2) to different queues, queue
+     * structure:
+     *
+     * <pre>
+     *                    C
+     *            /       |     \
+     *           USER1   USER2   USER3
+     *          30      30        30
+     * </pre>
+     *
+     * 1) Two nodes (n1/n2) in the cluster, each of them has 20G.
+     *
+     * 2) app1 submit to queue-USER1 first, it asked 32 * 1G containers
+     * We will allocate 16 on n1 and 16 on n2.
+     *
+     * 3) app2 submit to queue-USER2, ask for one 1G container (for AM)
+     *
+     * 4) app2 asks for another 6G container, it will be reserved on n1
+     *
+     * Now: we have:
+     * n1: 17 from app1, 1 from app2, and 1 reserved from app2
+     * n2: 16 from app1.
+     *
+     * After preemption, we should expect:
+     * Preempt 4 containers from app1 on n1.
+     */
+    setupQueueConfigurationForSimpleSurgicalPreemption(conf);
+    testSimpleSurgicalPreemption(USER1, USER2, USER1, USER2);
+  }
+
+  @Test(timeout = 600000)
+  public void
+      testPreemptionFromHighestPriorityManagedParentQueueAndOldestContainer()
+      throws Exception {
+    /**
+     * Test case: Submit two application (app1/app2) to different queues, queue
+     * structure:
+     *
+     * <pre>
+     *             Root
+     *            /  |  \
+     *           c   d   e
+     *          45  45  10
+     * </pre>
+     *
+     * Priority of queue_c = 1
+     * Priority of queue_d = 2
+     *
+     * 1) 5 nodes (n0-n4) in the cluster, each of them has 4G.
+     *
+     * 2) app1 submit to queue-e first (AM=1G), it asked 4 * 1G containers
+     *    We will allocate 1 container on each of n0-n4. AM on n4.
+     *
+     * 3) app2 submit to queue-c, AM container=0.5G, allocated on n0
+     *    Ask for 2 * 3.5G containers. (Reserved on n0/n1)
+     *
+     * 4) app2 submit to queue-d, AM container=0.5G, allocated on n2
+     *    Ask for 2 * 3.5G containers. (Reserved on n2/n3)
+     *
+     * First we will preempt container on n2 since it is the oldest container of
+     * Highest priority queue (d)
+     */
+
+    // Total preemption = 1G per round, which is 5% of cluster resource (20G)
+    setupQueueConfigurationForPriorityBasedPreemption(conf);
+    testPriorityPreemptionFromHighestPriorityQueueAndOldestContainer(
+        new String[] { USER1, USER3, USER0 },
+        new String[] { USER1, USER3, USER0 });
+  }
+}

http://git-wip-us.apache.org/repos/asf/hadoop/blob/890d3d06/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestCapacitySchedulerSurgicalPreemption.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/TestCapacitySchedulerSurgicalPreemption.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/TestCapacitySchedulerSurgicalPreemption.java
index 8a7e03f..c20e091 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/TestCapacitySchedulerSurgicalPreemption.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/TestCapacitySchedulerSurgicalPreemption.java
@@ -29,6 +29,9 @@ import org.apache.hadoop.yarn.server.resourcemanager.MockRM;
 import org.apache.hadoop.yarn.server.resourcemanager.monitor.SchedulingMonitor;
 import org.apache.hadoop.yarn.server.resourcemanager.monitor.SchedulingMonitorManager;
 import org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.ProportionalCapacityPreemptionPolicy;
+
+import org.apache.hadoop.yarn.server.resourcemanager.nodelabels
+    .RMNodeLabelsManager;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
 import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer;
 import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNode;
@@ -86,8 +89,19 @@ public class TestCapacitySchedulerSurgicalPreemption
      * After preemption, we should expect:
      * Preempt 4 containers from app1 on n1.
      */
-    MockRM rm1 = new MockRM(conf);
-    rm1.getRMContext().setNodeLabelManager(mgr);
+    testSimpleSurgicalPreemption("a", "c", "user", "user");
+  }
+
+  protected void testSimpleSurgicalPreemption(String queue1, String queue2,
+      String user1, String user2)
+      throws Exception {
+
+    MockRM rm1 = new MockRM(conf) {
+      protected RMNodeLabelsManager createNodeLabelManager() {
+        return mgr;
+      }
+    };
+
     rm1.start();
 
     MockNM nm1 = rm1.registerNode("h1:1234", 20 * GB);
@@ -97,7 +111,7 @@ public class TestCapacitySchedulerSurgicalPreemption
     RMNode rmNode2 = rm1.getRMContext().getRMNodes().get(nm2.getNodeId());
 
     // launch an app to queue, AM container should be launched in nm1
-    RMApp app1 = rm1.submitApp(1 * GB, "app", "user", null, "a");
+    RMApp app1 = rm1.submitApp(1 * GB, "app", user1, null, queue1);
     MockAM am1 = MockRM.launchAndRegisterAM(app1, rm1, nm1);
 
     am1.allocate("*", 1 * GB, 32, new ArrayList<ContainerId>());
@@ -120,7 +134,7 @@ public class TestCapacitySchedulerSurgicalPreemption
 
 
     // Submit app2 to queue-c and asks for a 1G container for AM
-    RMApp app2 = rm1.submitApp(1 * GB, "app", "user", null, "c");
+    RMApp app2 = rm1.submitApp(1 * GB, "app", user2, null, queue2);
     MockAM am2 = MockRM.launchAndRegisterAM(app2, rm1, nm1);
 
     // NM1/NM2 has available resource = 2G/4G
@@ -632,6 +646,21 @@ public class TestCapacitySchedulerSurgicalPreemption
      * Highest priority queue (b)
      */
 
+    // A/B has higher priority
+    conf.setQueuePriority(CapacitySchedulerConfiguration.ROOT + ".a" , 1);
+    conf.setQueuePriority(CapacitySchedulerConfiguration.ROOT + ".b", 2);
+    conf.setCapacity(CapacitySchedulerConfiguration.ROOT + ".a", 45f);
+    conf.setCapacity(CapacitySchedulerConfiguration.ROOT + ".b", 45f);
+    conf.setCapacity(CapacitySchedulerConfiguration.ROOT + ".c", 10f);
+
+    testPriorityPreemptionFromHighestPriorityQueueAndOldestContainer(new
+        String[] {"a", "b", "c"}, new String[] {"user", "user", "user"});
+
+  }
+
+  protected void
+  testPriorityPreemptionFromHighestPriorityQueueAndOldestContainer(String[]
+      queues, String[] users) throws Exception {
     // Total preemption = 1G per round, which is 5% of cluster resource (20G)
     conf.setFloat(CapacitySchedulerConfiguration.TOTAL_PREEMPTION_PER_ROUND,
         0.05f);
@@ -641,15 +670,11 @@ public class TestCapacitySchedulerSurgicalPreemption
     conf.setQueueOrderingPolicy(CapacitySchedulerConfiguration.ROOT,
         CapacitySchedulerConfiguration.QUEUE_PRIORITY_UTILIZATION_ORDERING_POLICY);
 
-    // A/B has higher priority
-    conf.setQueuePriority(CapacitySchedulerConfiguration.ROOT + ".a", 1);
-    conf.setQueuePriority(CapacitySchedulerConfiguration.ROOT + ".b", 2);
-    conf.setCapacity(CapacitySchedulerConfiguration.ROOT + ".a", 45f);
-    conf.setCapacity(CapacitySchedulerConfiguration.ROOT + ".b", 45f);
-    conf.setCapacity(CapacitySchedulerConfiguration.ROOT + ".c", 10f);
-
-    MockRM rm1 = new MockRM(conf);
-    rm1.getRMContext().setNodeLabelManager(mgr);
+    MockRM rm1 = new MockRM(conf) {
+      protected RMNodeLabelsManager createNodeLabelManager() {
+        return mgr;
+      }
+    };
     rm1.start();
 
     MockNM[] mockNMs = new MockNM[5];
@@ -665,7 +690,7 @@ public class TestCapacitySchedulerSurgicalPreemption
     }
 
     // launch an app to queue, AM container should be launched in nm1
-    RMApp app1 = rm1.submitApp(1 * GB, "app", "user", null, "c");
+    RMApp app1 = rm1.submitApp(1 * GB, "app", users[2], null, queues[2]);
     MockAM am1 = MockRM.launchAndRegisterAM(app1, rm1, mockNMs[4]);
 
     am1.allocate("*", 1 * GB, 4, new ArrayList<>());
@@ -685,7 +710,7 @@ public class TestCapacitySchedulerSurgicalPreemption
     }
 
     // Submit app2 to queue-a and asks for a 0.5G container for AM (on n0)
-    RMApp app2 = rm1.submitApp(512, "app", "user", null, "a");
+    RMApp app2 = rm1.submitApp(512, "app", users[0], null, queues[0]);
     MockAM am2 = MockRM.launchAndRegisterAM(app2, rm1, mockNMs[0]);
     FiCaSchedulerApp schedulerApp2 = cs.getApplicationAttempt(
         ApplicationAttemptId.newInstance(app2.getApplicationId(), 1));
@@ -703,11 +728,11 @@ public class TestCapacitySchedulerSurgicalPreemption
       Assert.assertNotNull("Should reserve on nm-" + i,
           cs.getNode(rmNodes[i].getNodeID()).getReservedContainer());
       Assert.assertEquals(cs.getNode(rmNodes[i].getNodeID())
-          .getReservedContainer().getQueueName(), "a");
+          .getReservedContainer().getQueueName(), queues[0]);
     }
 
     // Submit app3 to queue-b and asks for a 0.5G container for AM (on n2)
-    RMApp app3 = rm1.submitApp(512, "app", "user", null, "b");
+    RMApp app3 = rm1.submitApp(512, "app", users[1], null, queues[1]);
     MockAM am3 = MockRM.launchAndRegisterAM(app3, rm1, mockNMs[2]);
     FiCaSchedulerApp schedulerApp3 = cs.getApplicationAttempt(
         ApplicationAttemptId.newInstance(app3.getApplicationId(), 1));
@@ -725,7 +750,7 @@ public class TestCapacitySchedulerSurgicalPreemption
       Assert.assertNotNull("Should reserve on nm-" + i,
           cs.getNode(rmNodes[i].getNodeID()).getReservedContainer());
       Assert.assertEquals(cs.getNode(rmNodes[i].getNodeID())
-          .getReservedContainer().getQueueName(), "b");
+          .getReservedContainer().getQueueName(), queues[1]);
     }
 
     // Sleep the timeout interval, we should be able to see 1 container selected
@@ -831,6 +856,7 @@ public class TestCapacitySchedulerSurgicalPreemption
     rm1.close();
   }
 
+
   @Test(timeout = 60000)
   public void testPreemptionForFragmentatedCluster() throws Exception {
     // Set additional_balance_queue_based_on_reserved_res to true to get


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