YARN-4704. TestResourceManager#testResourceAllocation() fails when using FairScheduler. (Yufei Gu via kasha)

(cherry picked from commit 9dafaaaf0de68ce7f5e495ea4b8e0ce036dc35a2)

hadoop-yarn-project/CHANGES.txt

@@ -181,6 +181,9 @@ Release 2.9.0 - UNRELEASED
     YARN-4731. container-executor should not follow symlinks in
     recursive_unlink_children (Colin Patrick McCabe via jlowe)
 
+    YARN-4704. TestResourceManager#testResourceAllocation() fails when using 
+    FairScheduler. (Yufei Gu via kasha)
+
 Release 2.8.0 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestResourceManager.java

@@ -39,6 +39,7 @@ import org.apache.hadoop.yarn.exceptions.YarnException;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptState;
 import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNode;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.AppAttemptRemovedSchedulerEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.NodeAddedSchedulerEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.NodeUpdateSchedulerEvent;
@@ -57,6 +58,8 @@ public class TestResourceManager {
   @Before
   public void setUp() throws Exception {
     Configuration conf = new YarnConfiguration();
+    conf.set(YarnConfiguration.RM_SCHEDULER,
+        CapacityScheduler.class.getCanonicalName());
     UserGroupInformation.setConfiguration(conf);
     resourceManager = new ResourceManager();
     resourceManager.init(conf);
@@ -261,6 +264,8 @@ public class TestResourceManager {
         }
       };
       Configuration conf = new YarnConfiguration();
+      conf.set(YarnConfiguration.RM_SCHEDULER,
+        CapacityScheduler.class.getCanonicalName());
       conf.set(filterInitializerConfKey, filterInitializer);
       conf.set("hadoop.security.authentication", "kerberos");
       conf.set("hadoop.http.authentication.type", "kerberos");
@@ -295,6 +300,8 @@ public class TestResourceManager {
     for (String filterInitializer : simpleFilterInitializers) {
       resourceManager = new ResourceManager();
       Configuration conf = new YarnConfiguration();
+      conf.set(YarnConfiguration.RM_SCHEDULER,
+        CapacityScheduler.class.getCanonicalName());
       conf.set(filterInitializerConfKey, filterInitializer);
       try {
         UserGroupInformation.setConfiguration(conf);