YARN-7795. Fix jenkins issues of YARN-6592 branch. (Sunil G via asuresh)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/protocolrecords/AllocateRequest.java

@@ -229,8 +229,8 @@ public abstract class AllocateRequest {
   /**
    * Set the list of Scheduling requests to inform the
    * <code>ResourceManager</code> about the application's resource requirements
-   * (potentially including allocation tags & placement constraints).
+   * (potentially including allocation tags and placement constraints).
-   * @param schedulingRequests list of <code>SchedulingRequest</code> to update
+   * @param schedulingRequests list of {@link SchedulingRequest} to update
    *          the <code>ResourceManager</code> about the application's resource
    *          requirements.
    */

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/resource/PlacementConstraint.java

@@ -341,6 +341,9 @@ public class PlacementConstraint {
    * {@link TargetOperator} used.
    */
   public static class TargetConstraint extends AbstractConstraint {
+    /**
+     * TargetOperator enum helps to specify type.
+     */
     enum TargetOperator {
       IN, NOT_IN
     }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/resource/PlacementConstraints.java

@@ -20,12 +20,9 @@ package org.apache.hadoop.yarn.api.resource;
 
 import java.util.concurrent.TimeUnit;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.classification.InterfaceAudience.Public;
 import org.apache.hadoop.classification.InterfaceStability.Unstable;
-import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.api.resource.PlacementConstraint.AbstractConstraint;
 import org.apache.hadoop.yarn.api.resource.PlacementConstraint.And;
 import org.apache.hadoop.yarn.api.resource.PlacementConstraint.DelayedOr;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/api/records/impl/pb/ResourceSizingPBImpl.java

@@ -26,6 +26,9 @@ import org.apache.hadoop.yarn.proto.YarnProtos.ResourceProto;
 import org.apache.hadoop.yarn.proto.YarnProtos.ResourceSizingProto;
 import org.apache.hadoop.yarn.proto.YarnProtos.ResourceSizingProtoOrBuilder;
 
+/**
+ * Proto Implementation for {@link ResourceSizing} interface.
+ */
 @Private
 @Unstable
 public class ResourceSizingPBImpl extends ResourceSizing {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/api/records/impl/pb/SchedulingRequestPBImpl.java

@@ -37,6 +37,9 @@ import org.apache.hadoop.yarn.proto.YarnProtos.ResourceSizingProto;
 import org.apache.hadoop.yarn.proto.YarnProtos.SchedulingRequestProto;
 import org.apache.hadoop.yarn.proto.YarnProtos.SchedulingRequestProtoOrBuilder;
 
+/**
+ * Proto implementation for {@link SchedulingRequest} interface.
+ */
 @Private
 @Unstable
 public class SchedulingRequestPBImpl extends SchedulingRequest {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/AbstractYarnScheduler.java

@@ -53,7 +53,6 @@ import org.apache.hadoop.yarn.api.records.Priority;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.api.records.ResourceOption;
 import org.apache.hadoop.yarn.api.records.ResourceRequest;
-import org.apache.hadoop.yarn.api.records.ResourceSizing;
 import org.apache.hadoop.yarn.api.records.SchedulingRequest;
 import org.apache.hadoop.yarn.api.records.UpdateContainerError;
 import org.apache.hadoop.yarn.api.records.UpdateContainerRequest;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/AppSchedulingInfo.java

@@ -51,7 +51,6 @@ import org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.Applicatio
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.ContainerRequest;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.PendingAsk;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.placement.AppPlacementAllocator;
-import org.apache.hadoop.yarn.server.resourcemanager.scheduler.placement.LocalityAppPlacementAllocator;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.placement.PendingAskUpdateResult;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.placement.SingleConstraintAppPlacementAllocator;
 import org.apache.hadoop.yarn.server.scheduler.SchedulerRequestKey;
@@ -739,7 +738,7 @@ public class AppSchedulingInfo {
 
   /**
    * Pre-check node to see if it satisfy the given schedulerKey and
-   * scheduler mode
+   * scheduler mode.
    *
    * @param schedulerKey schedulerKey
    * @param schedulerNode schedulerNode

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerNode.java

@@ -471,8 +471,12 @@ public abstract class SchedulerNode {
 
   @Override
   public boolean equals(Object o) {
-    if (this == o) return true;
+    if (this == o) {
-    if (!(o instanceof SchedulerNode)) return false;
+      return true;
+    }
+    if (!(o instanceof SchedulerNode)) {
+      return false;
+    }
 
     SchedulerNode that = (SchedulerNode) o;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CapacityScheduler.java

@@ -63,7 +63,6 @@ import org.apache.hadoop.yarn.api.records.ResourceRequest;
 import org.apache.hadoop.yarn.api.records.ResourceSizing;
 import org.apache.hadoop.yarn.api.records.SchedulingRequest;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
-import org.apache.hadoop.yarn.exceptions.InvalidResourceRequestException;
 import org.apache.hadoop.yarn.exceptions.SchedulerInvalidResoureRequestException;
 import org.apache.hadoop.yarn.exceptions.YarnException;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
@@ -1062,7 +1061,7 @@ public class CapacityScheduler extends
   }
 
   /**
-   * Normalize a list of SchedulingRequest
+   * Normalize a list of SchedulingRequest.
    *
    * @param asks scheduling request
    */

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/AllocationTagsManager.java

@@ -66,7 +66,7 @@ public class AllocationTagsManager {
   private TypeToCountedTags<String> globalRackMapping = new TypeToCountedTags();
 
   /**
-   * Generic store mapping type <T> to counted tags.
+   * Generic store mapping type T to counted tags.
    * Currently used both for NodeId to Tag, Count and Rack to Tag, Count
    */
   @VisibleForTesting
@@ -467,7 +467,8 @@ public class AllocationTagsManager {
    *                      specified, all tags (of the node/app) will be
    *                      considered.
    * @param op            operator. Such as Long::max, Long::sum, etc. Required.
-   *                      This parameter only take effect when #values >= 2.
+   *                      This parameter only take effect when #values greater
+   *                      than 2.
    * @return cardinality of specified query on the node.
    * @throws InvalidAllocationTagsQueryException when illegal query
    *                                            parameter specified
@@ -515,7 +516,8 @@ public class AllocationTagsManager {
    *                      specified, all tags (of the rack/app) will be
    *                      considered.
    * @param op            operator. Such as Long::max, Long::sum, etc. Required.
-   *                      This parameter only take effect when #values >= 2.
+   *                      This parameter only take effect when #values
+   *                      greater than 2.
    * @return cardinality of specified query on the rack.
    * @throws InvalidAllocationTagsQueryException when illegal query
    *                                            parameter specified

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/PlacementConstraintsUtil.java

@@ -179,7 +179,7 @@ public final class PlacementConstraintsUtil {
    * first validates the constraint specified in the request; if not specified,
    * then it validates application level constraint if exists; otherwise, it
    * validates the global constraint if exists.
-   * <p/>
+   *
    * This method only checks whether a scheduling request can be placed
    * on a node with respect to the certain placement constraint. It gives no
    * guarantee that asked allocations can be eventually allocated because

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/placement/AppPlacementAllocator.java

@@ -57,7 +57,7 @@ public abstract class AppPlacementAllocator<N extends SchedulerNode> {
   protected RMContext rmContext;
 
   /**
-   * Get iterator of preferred node depends on requirement and/or availability
+   * Get iterator of preferred node depends on requirement and/or availability.
    * @param candidateNodeSet input CandidateNodeSet
    * @return iterator of preferred node
    */
@@ -180,7 +180,7 @@ public abstract class AppPlacementAllocator<N extends SchedulerNode> {
   public abstract void showRequests();
 
   /**
-   * Initialize this allocator, this will be called by Factory automatically
+   * Initialize this allocator, this will be called by Factory automatically.
    *
    * @param appSchedulingInfo appSchedulingInfo
    * @param schedulerRequestKey schedulerRequestKey

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/placement/SingleConstraintAppPlacementAllocator.java

@@ -23,7 +23,6 @@ import org.apache.commons.collections.IteratorUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.util.StringUtils;
-import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.api.records.ExecutionType;
 import org.apache.hadoop.yarn.api.records.ResourceRequest;
 import org.apache.hadoop.yarn.api.records.ResourceSizing;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestCapacityScheduler.java

@@ -37,7 +37,6 @@ import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.Set;
 import java.util.concurrent.BrokenBarrierException;
 import java.util.concurrent.CyclicBarrier;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestCapacitySchedulerSchedulingRequestUpdate.java

@@ -26,7 +26,6 @@ import org.apache.hadoop.yarn.api.records.Priority;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.api.records.ResourceRequest;
 import org.apache.hadoop.yarn.api.records.ResourceSizing;
-import org.apache.hadoop.yarn.api.resource.PlacementConstraints;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.server.resourcemanager.MockAM;
 import org.apache.hadoop.yarn.server.resourcemanager.MockNM;
@@ -41,6 +40,9 @@ import org.junit.Test;
 
 import java.util.Arrays;
 
+/**
+ * Test class for verifying Scheduling requests in CS.
+ */
 public class TestCapacitySchedulerSchedulingRequestUpdate
     extends CapacitySchedulerTestBase {
   @Test

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestSchedulingRequestContainerAllocation.java

@@ -20,27 +20,19 @@ package org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity;
 
 import com.google.common.collect.ImmutableSet;
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
 import org.apache.hadoop.yarn.api.records.Priority;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.api.records.ResourceSizing;
-import org.apache.hadoop.yarn.api.resource.PlacementConstraints;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.server.resourcemanager.MockAM;
 import org.apache.hadoop.yarn.server.resourcemanager.MockNM;
 import org.apache.hadoop.yarn.server.resourcemanager.MockRM;
-import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
 import org.apache.hadoop.yarn.server.resourcemanager.nodelabels.NullRMNodeLabelsManager;
 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.rmapp.attempt.RMAppAttemptState;
-import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer;
 import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNode;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;
-import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerAppReport;
-import org.apache.hadoop.yarn.server.resourcemanager.scheduler.YarnScheduler;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.fica.FiCaSchedulerApp;
-import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.AppAttemptRemovedSchedulerEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.NodeUpdateSchedulerEvent;
 import org.junit.Assert;
 import org.junit.Before;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestSchedulingRequestContainerAllocationAsync.java

@@ -23,7 +23,6 @@ import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.yarn.api.records.Priority;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.api.records.ResourceSizing;
-import org.apache.hadoop.yarn.api.resource.PlacementConstraints;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.server.resourcemanager.MockAM;
 import org.apache.hadoop.yarn.server.resourcemanager.MockNM;