YARN-3345. Add non-exclusive node label API. Contributed by Wangda Tan

hadoop-yarn-project/CHANGES.txt

@@ -54,6 +54,8 @@ Release 2.8.0 - UNRELEASED
 
   NEW FEATURES
 
+    YARN-3345. Add non-exclusive node label API. (Wangda Tan via jianhe)
+
   IMPROVEMENTS
 
     YARN-3243. CapacityScheduler should pass headroom from parent to children

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/NodeLabel.java

@@ -0,0 +1,55 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.api.records;
+
+import org.apache.hadoop.classification.InterfaceAudience.Public;
+import org.apache.hadoop.classification.InterfaceStability.Stable;
+import org.apache.hadoop.classification.InterfaceStability.Unstable;
+import org.apache.hadoop.yarn.util.Records;
+
+@Public
+@Unstable
+public abstract class NodeLabel {
+  @Public
+  @Unstable
+  public static NodeLabel newInstance(String nodeLabel,
+      boolean isExclusive) {
+    NodeLabel request =
+        Records.newRecord(NodeLabel.class);
+    request.setNodeLabel(nodeLabel);
+    request.setIsExclusive(isExclusive);
+    return request;
+  }
+  
+  @Public
+  @Stable
+  public abstract String getNodeLabel();
+  
+  @Public
+  @Unstable
+  public abstract void setNodeLabel(String nodeLabel);
+  
+  @Public
+  @Stable
+  public abstract boolean getIsExclusive();
+  
+  @Public
+  @Unstable
+  public abstract void setIsExclusive(boolean isExclusive);
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/server/api/ResourceManagerAdministrationProtocol.java

@@ -48,6 +48,8 @@ import org.apache.hadoop.yarn.server.api.protocolrecords.RemoveFromClusterNodeLa
 import org.apache.hadoop.yarn.server.api.protocolrecords.RemoveFromClusterNodeLabelsResponse;
 import org.apache.hadoop.yarn.server.api.protocolrecords.ReplaceLabelsOnNodeRequest;
 import org.apache.hadoop.yarn.server.api.protocolrecords.ReplaceLabelsOnNodeResponse;
+import org.apache.hadoop.yarn.server.api.protocolrecords.UpdateNodeLabelsRequest;
+import org.apache.hadoop.yarn.server.api.protocolrecords.UpdateNodeLabelsResponse;
 import org.apache.hadoop.yarn.server.api.protocolrecords.UpdateNodeResourceRequest;
 import org.apache.hadoop.yarn.server.api.protocolrecords.UpdateNodeResourceResponse;
 
@@ -120,8 +122,8 @@ public interface ResourceManagerAdministrationProtocol extends GetUserMappingsPr
   @Public
   @Evolving
   @Idempotent
-  public AddToClusterNodeLabelsResponse addToClusterNodeLabels(AddToClusterNodeLabelsRequest request)
+  public AddToClusterNodeLabelsResponse addToClusterNodeLabels(
-      throws YarnException, IOException;
+      AddToClusterNodeLabelsRequest request) throws YarnException, IOException;
    
   @Public
   @Evolving
@@ -134,4 +136,10 @@ public interface ResourceManagerAdministrationProtocol extends GetUserMappingsPr
   @Idempotent
   public ReplaceLabelsOnNodeResponse replaceLabelsOnNode(
       ReplaceLabelsOnNodeRequest request) throws YarnException, IOException;
+  
+  @Public
+  @Evolving
+  @Idempotent
+  public UpdateNodeLabelsResponse updateNodeLabels(
+      UpdateNodeLabelsRequest request) throws YarnException, IOException;
 }

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

@@ -0,0 +1,49 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.api.protocolrecords;
+
+import java.util.List;
+
+import org.apache.hadoop.classification.InterfaceAudience.Public;
+import org.apache.hadoop.classification.InterfaceStability.Unstable;
+import org.apache.hadoop.yarn.api.records.NodeLabel;
+import org.apache.hadoop.yarn.util.Records;
+
+@Public
+@Unstable
+public abstract class UpdateNodeLabelsRequest {
+  @Public
+  @Unstable
+  public static UpdateNodeLabelsRequest newInstance(
+      List<NodeLabel> NodeLabels) {
+    UpdateNodeLabelsRequest request =
+      Records.newRecord(UpdateNodeLabelsRequest.class);
+    request.setNodeLabels(NodeLabels);
+    return request;
+  }
+
+  @Public
+  @Unstable
+  public abstract void setNodeLabels(
+      List<NodeLabel> NodeLabels);
+  
+  @Public
+  @Unstable
+  public abstract List<NodeLabel> getNodeLabels();
+}

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

@@ -0,0 +1,37 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.api.protocolrecords;
+
+import org.apache.hadoop.classification.InterfaceAudience.Private;
+import org.apache.hadoop.classification.InterfaceAudience.Public;
+import org.apache.hadoop.classification.InterfaceStability.Unstable;
+import org.apache.hadoop.yarn.util.Records;
+
+@Public
+@Unstable
+public class UpdateNodeLabelsResponse {
+  
+  @Private
+  @Unstable
+  public static UpdateNodeLabelsResponse newInstance() {
+    UpdateNodeLabelsResponse response =
+        Records.newRecord(UpdateNodeLabelsResponse.class);
+    return response;  
+  }
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/proto/server/resourcemanager_administration_protocol.proto

@@ -42,4 +42,5 @@ service ResourceManagerAdministrationProtocolService {
   rpc addToClusterNodeLabels(AddToClusterNodeLabelsRequestProto) returns (AddToClusterNodeLabelsResponseProto);
   rpc removeFromClusterNodeLabels(RemoveFromClusterNodeLabelsRequestProto) returns (RemoveFromClusterNodeLabelsResponseProto);
   rpc replaceLabelsOnNodes(ReplaceLabelsOnNodeRequestProto) returns (ReplaceLabelsOnNodeResponseProto);
+  rpc updateNodeLabels(UpdateNodeLabelsRequestProto) returns (UpdateNodeLabelsResponseProto);
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/proto/server/yarn_server_resourcemanager_service_protos.proto

@@ -97,6 +97,14 @@ message ReplaceLabelsOnNodeResponseProto {
   
 }
 
+message UpdateNodeLabelsRequestProto {
+  repeated NodeLabelProto nodeLabels = 1;
+}
+
+
+message UpdateNodeLabelsResponseProto {
+}
+
 //////////////////////////////////////////////////////////////////
 ///////////// RM Failover related records ////////////////////////
 //////////////////////////////////////////////////////////////////

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/proto/yarn_protos.proto

@@ -244,6 +244,11 @@ message LabelsToNodeIdsProto {
   repeated NodeIdProto nodeId = 2;
 }
 
+message NodeLabelProto {
+  optional string nodeLabel = 1;
+  optional bool isExclusive = 2 [default = true]; 
+}
+
 ////////////////////////////////////////////////////////////////////////
 ////// From AM_RM_Protocol /////////////////////////////////////////////
 ////////////////////////////////////////////////////////////////////////

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

@@ -0,0 +1,106 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.yarn.api.records.impl.pb;
+
+import org.apache.hadoop.yarn.api.records.NodeLabel;
+import org.apache.hadoop.yarn.proto.YarnProtos.NodeLabelProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.NodeLabelProtoOrBuilder;
+
+public class NodeLabelPBImpl extends NodeLabel {
+  NodeLabelProto proto = 
+      NodeLabelProto.getDefaultInstance();
+  NodeLabelProto.Builder builder = null;
+  boolean viaProto = false;
+  
+  public NodeLabelPBImpl() {
+    builder = NodeLabelProto.newBuilder();
+  }
+
+  public NodeLabelPBImpl(NodeLabelProto proto) {
+    this.proto = proto;
+    viaProto = true;
+  }
+  
+  public NodeLabelProto getProto() {
+    mergeLocalToProto();
+    proto = viaProto ? proto : builder.build();
+    viaProto = true;
+    return proto;
+  }
+  
+  private void mergeLocalToProto() {
+    if (viaProto) 
+      maybeInitBuilder();
+    proto = builder.build();
+    viaProto = true;
+  }
+  
+  @Override
+  public boolean equals(Object other) {
+    if (other == null)
+      return false;
+    if (other.getClass().isAssignableFrom(this.getClass())) {
+      return this.getProto().equals(this.getClass().cast(other).getProto());
+    }
+    return false;
+  }
+  
+  private void maybeInitBuilder() {
+    if (viaProto || builder == null) {
+      builder = NodeLabelProto.newBuilder(proto);
+    }
+    viaProto = false;
+  }
+
+  @Override
+  public int hashCode() {
+    return getProto().hashCode();
+  }
+
+  @Override
+  public String getNodeLabel() {
+    NodeLabelProtoOrBuilder p = viaProto ? proto : builder;
+    if (!p.hasNodeLabel()) {
+      return null;
+    }
+    return (p.getNodeLabel());
+  }
+
+  @Override
+  public void setNodeLabel(String nodeLabel) {
+    maybeInitBuilder();
+    if (nodeLabel == null) {
+      builder.clearNodeLabel();
+      return;
+    }
+    builder.setNodeLabel(nodeLabel);
+  }
+
+  @Override
+  public boolean getIsExclusive() {
+    NodeLabelProtoOrBuilder p = viaProto ? proto : builder;
+    return p.getIsExclusive();
+  }
+
+  @Override
+  public void setIsExclusive(boolean isExclusive) {
+    maybeInitBuilder();
+    builder.setIsExclusive(isExclusive);
+  }
+
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/nodelabels/CommonNodeLabelsManager.java

@@ -24,6 +24,7 @@ import java.util.Collections;
 import java.util.EnumSet;
 import java.util.HashMap;
 import java.util.HashSet;
+import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Set;
@@ -40,16 +41,19 @@ import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.records.NodeId;
+import org.apache.hadoop.yarn.api.records.NodeLabel;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.event.AsyncDispatcher;
 import org.apache.hadoop.yarn.event.Dispatcher;
 import org.apache.hadoop.yarn.event.EventHandler;
+import org.apache.hadoop.yarn.exceptions.YarnException;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
 import org.apache.hadoop.yarn.nodelabels.event.NodeLabelsStoreEvent;
 import org.apache.hadoop.yarn.nodelabels.event.NodeLabelsStoreEventType;
 import org.apache.hadoop.yarn.nodelabels.event.RemoveClusterNodeLabels;
 import org.apache.hadoop.yarn.nodelabels.event.StoreNewClusterNodeLabels;
+import org.apache.hadoop.yarn.nodelabels.event.StoreUpdateNodeLabelsEvent;
 import org.apache.hadoop.yarn.nodelabels.event.UpdateNodeToLabelsMappingsEvent;
 import org.apache.hadoop.yarn.util.resource.Resources;
 
@@ -83,8 +87,8 @@ public class CommonNodeLabelsManager extends AbstractService {
 
   protected Dispatcher dispatcher;
 
-  protected ConcurrentMap<String, NodeLabel> labelCollections =
+  protected ConcurrentMap<String, RMNodeLabel> labelCollections =
-      new ConcurrentHashMap<String, NodeLabel>();
+      new ConcurrentHashMap<String, RMNodeLabel>();
   protected ConcurrentMap<String, Host> nodeCollections =
       new ConcurrentHashMap<String, Host>();
 
@@ -181,6 +185,13 @@ public class CommonNodeLabelsManager extends AbstractService {
         store.updateNodeToLabelsMappings(updateNodeToLabelsMappingsEvent
             .getNodeToLabels());
         break;
+      case UPDATE_NODE_LABELS:
+        StoreUpdateNodeLabelsEvent
+          storeSetNodeLabelsEventEvent =
+            (StoreUpdateNodeLabelsEvent) event;
+        store.updateNodeLabels(storeSetNodeLabelsEventEvent
+            .getUpdatedNodeLabels());
+        break;
       }
     } catch (IOException e) {
       LOG.error("Failed to store label modification to storage");
@@ -214,7 +225,7 @@ public class CommonNodeLabelsManager extends AbstractService {
       initNodeLabelStore(conf);
     }
     
-    labelCollections.put(NO_LABEL, new NodeLabel(NO_LABEL));
+    labelCollections.put(NO_LABEL, new RMNodeLabel(NO_LABEL));
   }
 
   protected void initNodeLabelStore(Configuration conf) throws Exception {
@@ -288,7 +299,7 @@ public class CommonNodeLabelsManager extends AbstractService {
     for (String label : labels) {
       // shouldn't overwrite it to avoid changing the Label.resource
       if (this.labelCollections.get(label) == null) {
-        this.labelCollections.put(label, new NodeLabel(label));
+        this.labelCollections.put(label, new RMNodeLabel(label));
         newLabels.add(label);
       }
     }
@@ -746,7 +757,7 @@ public class CommonNodeLabelsManager extends AbstractService {
         if(label.equals(NO_LABEL)) {
           continue;
         }
-        NodeLabel nodeLabelInfo = labelCollections.get(label);
+        RMNodeLabel nodeLabelInfo = labelCollections.get(label);
         if(nodeLabelInfo != null) {
           Set<NodeId> nodeIds = nodeLabelInfo.getAssociatedNodeIds();
           if (!nodeIds.isEmpty()) {
@@ -777,6 +788,60 @@ public class CommonNodeLabelsManager extends AbstractService {
       readLock.unlock();
     }
   }
+  
+  private void checkUpdateNodeLabels(
+      List<NodeLabel> updatedNodeLabels) throws YarnException {
+    // pre-check
+    for (NodeLabel label : updatedNodeLabels) {
+      if (!labelCollections.containsKey(label.getNodeLabel())) {
+        String message =
+          String.format(
+            "Trying to update a non-existing node-label=%s",
+            label.getNodeLabel());
+        LOG.error(message);
+        throw new YarnException(message);
+      }
+    }
+  }
+
+  @SuppressWarnings("unchecked")
+  public void updateNodeLabels(
+      List<NodeLabel> updatedNodeLabels) throws YarnException {
+    try {
+      writeLock.lock();
+      checkUpdateNodeLabels(updatedNodeLabels);
+
+      for (NodeLabel label : updatedNodeLabels) {
+        RMNodeLabel rmLabel = labelCollections.get(label.getNodeLabel());
+        rmLabel.setIsExclusive(label.getIsExclusive());
+      }
+
+      if (null != dispatcher && !updatedNodeLabels.isEmpty()) {
+        dispatcher.getEventHandler().handle(
+          new StoreUpdateNodeLabelsEvent(updatedNodeLabels));
+      }
+    } finally {
+      writeLock.unlock();
+    }
+  }
+
+  public boolean isExclusiveNodeLabel(String nodeLabel) throws IOException {
+    try {
+      readLock.lock();
+      RMNodeLabel label = labelCollections.get(nodeLabel);
+      if (label == null) {
+        String message =
+          "Getting is-exclusive-node-label, node-label = " + nodeLabel
+            + ", is not existed.";
+        LOG.error(message);
+        throw new IOException(message);
+      }
+      return label.getIsExclusive();
+    } finally {
+      readLock.unlock();
+    }
+  }
+  
 
   private void checkAndThrowLabelName(String label) throws IOException {
     if (label == null || label.isEmpty() || label.length() > MAX_LABEL_LENGTH) {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/nodelabels/FileSystemNodeLabelsStore.java

@@ -21,6 +21,7 @@ package org.apache.hadoop.yarn.nodelabels;
 import java.io.EOFException;
 import java.io.IOException;
 import java.util.Collection;
+import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
@@ -34,16 +35,21 @@ import org.apache.hadoop.fs.LocalFileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.yarn.api.records.NodeId;
+import org.apache.hadoop.yarn.api.records.NodeLabel;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
+import org.apache.hadoop.yarn.exceptions.YarnException;
 import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.AddToClusterNodeLabelsRequestProto;
 import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RemoveFromClusterNodeLabelsRequestProto;
 import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.ReplaceLabelsOnNodeRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.UpdateNodeLabelsRequestProto;
 import org.apache.hadoop.yarn.server.api.protocolrecords.AddToClusterNodeLabelsRequest;
 import org.apache.hadoop.yarn.server.api.protocolrecords.RemoveFromClusterNodeLabelsRequest;
 import org.apache.hadoop.yarn.server.api.protocolrecords.ReplaceLabelsOnNodeRequest;
+import org.apache.hadoop.yarn.server.api.protocolrecords.UpdateNodeLabelsRequest;
 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.AddToClusterNodeLabelsRequestPBImpl;
 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RemoveFromClusterNodeLabelsRequestPBImpl;
 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.ReplaceLabelsOnNodeRequestPBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.UpdateNodeLabelsRequestPBImpl;
 
 import com.google.common.collect.Sets;
 
@@ -60,7 +66,7 @@ public class FileSystemNodeLabelsStore extends NodeLabelsStore {
   protected static final String EDITLOG_FILENAME = "nodelabel.editlog";
   
   protected enum SerializedLogType {
-    ADD_LABELS, NODE_TO_LABELS, REMOVE_LABELS
+    ADD_LABELS, NODE_TO_LABELS, REMOVE_LABELS, UPDATE_NODE_LABELS
   }
 
   Path fsWorkingPath;
@@ -150,9 +156,19 @@ public class FileSystemNodeLabelsStore extends NodeLabelsStore {
         .newHashSet(labels.iterator()))).getProto().writeDelimitedTo(editlogOs);
     ensureCloseEditlogFile();
   }
+  
+  @Override
+  public void updateNodeLabels(List<NodeLabel> updatedNodeLabels)
+      throws IOException {
+    ensureAppendEditlogFile();
+    editlogOs.writeInt(SerializedLogType.UPDATE_NODE_LABELS.ordinal());
+    ((UpdateNodeLabelsRequestPBImpl) UpdateNodeLabelsRequest
+        .newInstance(updatedNodeLabels)).getProto().writeDelimitedTo(editlogOs);
+    ensureCloseEditlogFile();
+  }
 
   @Override
-  public void recover() throws IOException {
+  public void recover() throws YarnException, IOException {
     /*
      * Steps of recover
      * 1) Read from last mirror (from mirror or mirror.old)
@@ -221,6 +237,14 @@ public class FileSystemNodeLabelsStore extends NodeLabelsStore {
             mgr.replaceLabelsOnNode(map);
             break;
           }
+          case UPDATE_NODE_LABELS: {
+            List<NodeLabel> attributes =
+                new UpdateNodeLabelsRequestPBImpl(
+                    UpdateNodeLabelsRequestProto.parseDelimitedFrom(is))
+                    .getNodeLabels();
+            mgr.updateNodeLabels(attributes);
+            break;
+          }
           }
         } catch (EOFException e) {
           // EOF hit, break

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/nodelabels/NodeLabelsStore.java

@@ -21,11 +21,14 @@ package org.apache.hadoop.yarn.nodelabels;
 import java.io.Closeable;
 import java.io.IOException;
 import java.util.Collection;
+import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.yarn.api.records.NodeId;
+import org.apache.hadoop.yarn.api.records.NodeLabel;
+import org.apache.hadoop.yarn.exceptions.YarnException;
 
 public abstract class NodeLabelsStore implements Closeable {
   protected final CommonNodeLabelsManager mgr;
@@ -52,10 +55,16 @@ public abstract class NodeLabelsStore implements Closeable {
   public abstract void removeClusterNodeLabels(Collection<String> labels)
       throws IOException;
   
+  /**
+   * Update node labels
+   */
+  public abstract void updateNodeLabels(
+      List<NodeLabel> updatedNodeLabels) throws IOException;
+  
   /**
    * Recover labels and node to labels mappings from store
    */
-  public abstract void recover() throws IOException;
+  public abstract void recover() throws IOException, YarnException;
   
   public void init(Configuration conf) throws Exception {}
   

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/nodelabels/RMNodeLabel.java

@@ -25,17 +25,18 @@ import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.util.resource.Resources;
 
-public class NodeLabel implements Comparable<NodeLabel> {
+public class RMNodeLabel implements Comparable<RMNodeLabel> {
   private Resource resource;
   private int numActiveNMs;
   private String labelName;
   private Set<NodeId> nodeIds;
+  private boolean exclusive = true;
 
-  public NodeLabel(String labelName) {
+  public RMNodeLabel(String labelName) {
     this(labelName, Resource.newInstance(0, 0), 0);
   }
   
-  protected NodeLabel(String labelName, Resource res, int activeNMs) {
+  protected RMNodeLabel(String labelName, Resource res, int activeNMs) {
     this.labelName = labelName;
     this.resource = res;
     this.numActiveNMs = activeNMs;
@@ -76,12 +77,20 @@ public class NodeLabel implements Comparable<NodeLabel> {
     return labelName;
   }
   
-  public NodeLabel getCopy() {
+  public void setIsExclusive(boolean exclusive) {
-    return new NodeLabel(labelName, resource, numActiveNMs);
+    this.exclusive = exclusive;
+  }
+  
+  public boolean getIsExclusive() {
+    return this.exclusive;
+  }
+  
+  public RMNodeLabel getCopy() {
+    return new RMNodeLabel(labelName, resource, numActiveNMs);
   }
   
   @Override
-  public int compareTo(NodeLabel o) {
+  public int compareTo(RMNodeLabel o) {
     // We should always put empty label entry first after sorting
     if (labelName.isEmpty() != o.getLabelName().isEmpty()) {
       if (labelName.isEmpty()) {
@@ -95,8 +104,8 @@ public class NodeLabel implements Comparable<NodeLabel> {
   
   @Override
   public boolean equals(Object obj) {
-    if (obj instanceof NodeLabel) {
+    if (obj instanceof RMNodeLabel) {
-      NodeLabel other = (NodeLabel) obj;
+      RMNodeLabel other = (RMNodeLabel) obj;
       return Resources.equals(resource, other.getResource())
           && StringUtils.equals(labelName, other.getLabelName())
           && (other.getNumActiveNMs() == numActiveNMs); 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/nodelabels/event/NodeLabelsStoreEventType.java

@@ -21,5 +21,6 @@ package org.apache.hadoop.yarn.nodelabels.event;
 public enum NodeLabelsStoreEventType {
   REMOVE_LABELS,
   ADD_LABELS,
-  STORE_NODE_TO_LABELS
+  STORE_NODE_TO_LABELS,
+  UPDATE_NODE_LABELS
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/nodelabels/event/StoreUpdateNodeLabelsEvent.java

@@ -0,0 +1,36 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.nodelabels.event;
+
+import java.util.List;
+
+import org.apache.hadoop.yarn.api.records.NodeLabel;
+
+public class StoreUpdateNodeLabelsEvent extends NodeLabelsStoreEvent {
+  private List<NodeLabel> updatedNodeLabels;
+
+  public StoreUpdateNodeLabelsEvent(List<NodeLabel> updateNodeLabels) {
+    super(NodeLabelsStoreEventType.UPDATE_NODE_LABELS);
+    this.updatedNodeLabels = updateNodeLabels;
+  }
+
+  public List<NodeLabel> getUpdatedNodeLabels() {
+    return updatedNodeLabels;
+  }
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/server/api/impl/pb/client/ResourceManagerAdministrationProtocolPBClientImpl.java

@@ -40,6 +40,7 @@ import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.Refre
 import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RefreshUserToGroupsMappingsRequestProto;
 import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RemoveFromClusterNodeLabelsRequestProto;
 import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.ReplaceLabelsOnNodeRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.UpdateNodeLabelsRequestProto;
 import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.UpdateNodeResourceRequestProto;
 import org.apache.hadoop.yarn.server.api.ResourceManagerAdministrationProtocol;
 import org.apache.hadoop.yarn.server.api.ResourceManagerAdministrationProtocolPB;
@@ -61,6 +62,8 @@ import org.apache.hadoop.yarn.server.api.protocolrecords.RemoveFromClusterNodeLa
 import org.apache.hadoop.yarn.server.api.protocolrecords.RemoveFromClusterNodeLabelsResponse;
 import org.apache.hadoop.yarn.server.api.protocolrecords.ReplaceLabelsOnNodeRequest;
 import org.apache.hadoop.yarn.server.api.protocolrecords.ReplaceLabelsOnNodeResponse;
+import org.apache.hadoop.yarn.server.api.protocolrecords.UpdateNodeLabelsRequest;
+import org.apache.hadoop.yarn.server.api.protocolrecords.UpdateNodeLabelsResponse;
 import org.apache.hadoop.yarn.server.api.protocolrecords.UpdateNodeResourceRequest;
 import org.apache.hadoop.yarn.server.api.protocolrecords.UpdateNodeResourceResponse;
 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.AddToClusterNodeLabelsRequestPBImpl;
@@ -81,6 +84,8 @@ import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RemoveFromClust
 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RemoveFromClusterNodeLabelsResponsePBImpl;
 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.ReplaceLabelsOnNodeRequestPBImpl;
 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.ReplaceLabelsOnNodeResponsePBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.UpdateNodeLabelsRequestPBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.UpdateNodeLabelsResponsePBImpl;
 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.UpdateNodeResourceRequestPBImpl;
 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.UpdateNodeResourceResponsePBImpl;
 
@@ -263,4 +268,18 @@ public class ResourceManagerAdministrationProtocolPBClientImpl implements Resour
       return null;
     }
   }
+
+  @Override
+  public UpdateNodeLabelsResponse updateNodeLabels(
+      UpdateNodeLabelsRequest request) throws YarnException, IOException {
+    UpdateNodeLabelsRequestProto requestProto =
+        ((UpdateNodeLabelsRequestPBImpl) request).getProto();
+    try {
+      return new UpdateNodeLabelsResponsePBImpl(
+          proxy.updateNodeLabels(null, requestProto));
+    } catch (ServiceException e) {
+      RPCUtil.unwrapAndThrowException(e);
+      return null;
+    }
+  }
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/server/api/impl/pb/service/ResourceManagerAdministrationProtocolPBServiceImpl.java

@@ -42,6 +42,8 @@ import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.Remov
 import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RemoveFromClusterNodeLabelsResponseProto;
 import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.ReplaceLabelsOnNodeRequestProto;
 import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.ReplaceLabelsOnNodeResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.UpdateNodeLabelsRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.UpdateNodeLabelsResponseProto;
 import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.UpdateNodeResourceRequestProto;
 import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.UpdateNodeResourceResponseProto;
 import org.apache.hadoop.yarn.server.api.ResourceManagerAdministrationProtocol;
@@ -55,6 +57,8 @@ import org.apache.hadoop.yarn.server.api.protocolrecords.RefreshSuperUserGroupsC
 import org.apache.hadoop.yarn.server.api.protocolrecords.RefreshUserToGroupsMappingsResponse;
 import org.apache.hadoop.yarn.server.api.protocolrecords.RemoveFromClusterNodeLabelsResponse;
 import org.apache.hadoop.yarn.server.api.protocolrecords.ReplaceLabelsOnNodeResponse;
+import org.apache.hadoop.yarn.server.api.protocolrecords.UpdateNodeLabelsRequest;
+import org.apache.hadoop.yarn.server.api.protocolrecords.UpdateNodeLabelsResponse;
 import org.apache.hadoop.yarn.server.api.protocolrecords.UpdateNodeResourceResponse;
 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.AddToClusterNodeLabelsRequestPBImpl;
 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.AddToClusterNodeLabelsResponsePBImpl;
@@ -74,6 +78,8 @@ import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RemoveFromClust
 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RemoveFromClusterNodeLabelsResponsePBImpl;
 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.ReplaceLabelsOnNodeRequestPBImpl;
 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.ReplaceLabelsOnNodeResponsePBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.UpdateNodeLabelsRequestPBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.UpdateNodeLabelsResponsePBImpl;
 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.UpdateNodeResourceRequestPBImpl;
 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.UpdateNodeResourceResponsePBImpl;
 
@@ -268,4 +274,21 @@ public class ResourceManagerAdministrationProtocolPBServiceImpl implements Resou
       throw new ServiceException(e);
     }
   }
+
+  @Override
+  public UpdateNodeLabelsResponseProto updateNodeLabels(
+      RpcController controller, UpdateNodeLabelsRequestProto proto)
+      throws ServiceException {
+    UpdateNodeLabelsRequest request =
+        new UpdateNodeLabelsRequestPBImpl(proto);
+    try {
+      UpdateNodeLabelsResponse response =
+          real.updateNodeLabels(request);
+      return ((UpdateNodeLabelsResponsePBImpl) response).getProto();
+    } catch (YarnException e) {
+      throw new ServiceException(e);
+    } catch (IOException e) {
+      throw new ServiceException(e);
+    }
+  }
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/server/api/protocolrecords/impl/pb/UpdateNodeLabelsRequestPBImpl.java

@@ -0,0 +1,145 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.hadoop.yarn.api.records.NodeLabel;
+import org.apache.hadoop.yarn.api.records.impl.pb.NodeLabelPBImpl;
+import org.apache.hadoop.yarn.proto.YarnProtos.NodeLabelProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.UpdateNodeLabelsRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.UpdateNodeLabelsRequestProtoOrBuilder;
+import org.apache.hadoop.yarn.server.api.protocolrecords.UpdateNodeLabelsRequest;
+
+public class UpdateNodeLabelsRequestPBImpl extends
+    UpdateNodeLabelsRequest {
+  UpdateNodeLabelsRequestProto proto =
+      UpdateNodeLabelsRequestProto.getDefaultInstance();
+  UpdateNodeLabelsRequestProto.Builder builder = null;
+  private List<NodeLabel> updatedNodeLabels;
+  boolean viaProto = false;
+
+  public UpdateNodeLabelsRequestPBImpl() {
+    builder = UpdateNodeLabelsRequestProto.newBuilder();
+  }
+
+  public UpdateNodeLabelsRequestPBImpl(
+      UpdateNodeLabelsRequestProto proto) {
+    this.proto = proto;
+    viaProto = true;
+  }
+
+  public UpdateNodeLabelsRequestProto getProto() {
+    mergeLocalToProto();
+    proto = viaProto ? proto : builder.build();
+    viaProto = true;
+    return proto;
+  }
+
+  private void mergeLocalToProto() {
+    if (viaProto)
+      maybeInitBuilder();
+    mergeLocalToBuilder();
+    proto = builder.build();
+    viaProto = true;
+  }
+
+  private void mergeLocalToBuilder() {
+    if (this.updatedNodeLabels != null) {
+      addNodeLabelsToProto();
+    }
+  }
+
+  private void addNodeLabelsToProto() {
+    maybeInitBuilder();
+    builder.clearNodeLabels();
+    List<NodeLabelProto> protoList =
+        new ArrayList<NodeLabelProto>();
+    for (NodeLabel r : this.updatedNodeLabels) {
+      protoList.add(convertToProtoFormat(r));
+    }
+    builder.addAllNodeLabels(protoList);
+  }
+
+  @Override
+  public boolean equals(Object other) {
+    if (other == null)
+      return false;
+    if (other.getClass().isAssignableFrom(this.getClass())) {
+      return this.getProto().equals(this.getClass().cast(other).getProto());
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    assert false : "hashCode not designed";
+    return 0;
+  }
+
+  private void maybeInitBuilder() {
+    if (viaProto || builder == null) {
+      builder = UpdateNodeLabelsRequestProto.newBuilder(proto);
+    }
+    viaProto = false;
+  }
+
+  @Override
+  public void setNodeLabels(List<NodeLabel> updatedNodeLabels) {
+    maybeInitBuilder();
+    if (updatedNodeLabels == null) {
+      builder.clearNodeLabels();
+    }
+    this.updatedNodeLabels = updatedNodeLabels;
+  }
+
+  private void initLocalNodeLabels() {
+    UpdateNodeLabelsRequestProtoOrBuilder p = viaProto ? proto : builder;
+    List<NodeLabelProto> attributesProtoList =
+        p.getNodeLabelsList();
+    this.updatedNodeLabels = new ArrayList<NodeLabel>();
+    for (NodeLabelProto r : attributesProtoList) {
+      this.updatedNodeLabels.add(convertFromProtoFormat(r));
+    }
+  }
+
+  @Override
+  public List<NodeLabel> getNodeLabels() {
+    if (this.updatedNodeLabels != null) {
+      return this.updatedNodeLabels;
+    }
+    initLocalNodeLabels();
+    return this.updatedNodeLabels;
+  }
+
+  private NodeLabel
+      convertFromProtoFormat(NodeLabelProto p) {
+    return new NodeLabelPBImpl(p);
+  }
+
+  private NodeLabelProto convertToProtoFormat(NodeLabel t) {
+    return ((NodeLabelPBImpl) t).getProto();
+  }
+
+  @Override
+  public String toString() {
+    return getProto().toString();
+  }
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/server/api/protocolrecords/impl/pb/UpdateNodeLabelsResponsePBImpl.java

@@ -0,0 +1,67 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb;
+
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.UpdateNodeLabelsResponseProto;
+import org.apache.hadoop.yarn.server.api.protocolrecords.UpdateNodeLabelsResponse;
+
+public class UpdateNodeLabelsResponsePBImpl extends
+    UpdateNodeLabelsResponse {
+  UpdateNodeLabelsResponseProto proto =
+      UpdateNodeLabelsResponseProto.getDefaultInstance();
+  UpdateNodeLabelsResponseProto.Builder builder = null;
+  boolean viaProto = false;
+
+  public UpdateNodeLabelsResponsePBImpl() {
+    builder = UpdateNodeLabelsResponseProto.newBuilder();
+  }
+
+  public UpdateNodeLabelsResponsePBImpl(
+      UpdateNodeLabelsResponseProto proto) {
+    this.proto = proto;
+    viaProto = true;
+  }
+
+  public UpdateNodeLabelsResponseProto getProto() {
+    proto = viaProto ? proto : builder.build();
+    viaProto = true;
+    return proto;
+  }
+
+  @Override
+  public int hashCode() {
+    return getProto().hashCode();
+  }
+
+  @Override
+  public boolean equals(Object other) {
+    if (other == null)
+      return false;
+    if (other.getClass().isAssignableFrom(this.getClass())) {
+      return this.getProto().equals(this.getClass().cast(other).getProto());
+    }
+    return false;
+  }
+
+  @Override
+  public String toString() {
+    return getProto().toString().replaceAll("\\n", ", ")
+        .replaceAll("\\s+", " ");
+  }
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/api/TestPBImplRecords.java

@@ -36,15 +36,280 @@ import java.util.Set;
 import org.apache.commons.lang.math.LongRange;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-import org.apache.hadoop.security.proto.SecurityProtos.*;
+import org.apache.hadoop.security.proto.SecurityProtos.CancelDelegationTokenRequestProto;
-import org.apache.hadoop.yarn.api.protocolrecords.*;
+import org.apache.hadoop.security.proto.SecurityProtos.CancelDelegationTokenResponseProto;
-import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.*;
+import org.apache.hadoop.security.proto.SecurityProtos.GetDelegationTokenRequestProto;
-import org.apache.hadoop.yarn.api.records.*;
+import org.apache.hadoop.security.proto.SecurityProtos.GetDelegationTokenResponseProto;
-import org.apache.hadoop.yarn.api.records.impl.pb.*;
+import org.apache.hadoop.security.proto.SecurityProtos.RenewDelegationTokenRequestProto;
-import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.*;
+import org.apache.hadoop.security.proto.SecurityProtos.RenewDelegationTokenResponseProto;
-import org.apache.hadoop.yarn.proto.YarnProtos.*;
+import org.apache.hadoop.security.proto.SecurityProtos.TokenProto;
-import org.apache.hadoop.yarn.proto.YarnServiceProtos.*;
+import org.apache.hadoop.yarn.api.protocolrecords.StartContainerRequest;
-import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.*;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.AllocateRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.AllocateResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.CancelDelegationTokenRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.CancelDelegationTokenResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.FinishApplicationMasterRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.FinishApplicationMasterResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetApplicationAttemptReportRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetApplicationAttemptReportResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetApplicationAttemptsRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetApplicationAttemptsResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetApplicationReportRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetApplicationReportResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetApplicationsRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetApplicationsResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetClusterMetricsRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetClusterMetricsResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetClusterNodeLabelsRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetClusterNodeLabelsResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetClusterNodesRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetClusterNodesResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetContainerReportRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetContainerReportResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetContainerStatusesRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetContainerStatusesResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetContainersRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetContainersResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetDelegationTokenRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetDelegationTokenResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetLabelsToNodesRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetLabelsToNodesResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetNewApplicationRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetNewApplicationResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetNodesToLabelsRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetNodesToLabelsResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetQueueInfoRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetQueueInfoResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetQueueUserAclsInfoRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetQueueUserAclsInfoResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.KillApplicationRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.KillApplicationResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.MoveApplicationAcrossQueuesRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.MoveApplicationAcrossQueuesResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.RegisterApplicationMasterRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.RegisterApplicationMasterResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.RenewDelegationTokenRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.RenewDelegationTokenResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.ReservationDeleteRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.ReservationDeleteResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.ReservationSubmissionRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.ReservationSubmissionResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.ReservationUpdateRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.ReservationUpdateResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.StartContainerRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.StartContainersRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.StartContainersResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.StopContainersRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.StopContainersResponsePBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.SubmitApplicationRequestPBImpl;
+import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.SubmitApplicationResponsePBImpl;
+import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
+import org.apache.hadoop.yarn.api.records.ApplicationAttemptReport;
+import org.apache.hadoop.yarn.api.records.ApplicationId;
+import org.apache.hadoop.yarn.api.records.ApplicationReport;
+import org.apache.hadoop.yarn.api.records.ApplicationResourceUsageReport;
+import org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext;
+import org.apache.hadoop.yarn.api.records.Container;
+import org.apache.hadoop.yarn.api.records.ContainerId;
+import org.apache.hadoop.yarn.api.records.ContainerLaunchContext;
+import org.apache.hadoop.yarn.api.records.ContainerReport;
+import org.apache.hadoop.yarn.api.records.ContainerResourceDecrease;
+import org.apache.hadoop.yarn.api.records.ContainerResourceIncrease;
+import org.apache.hadoop.yarn.api.records.ContainerResourceIncreaseRequest;
+import org.apache.hadoop.yarn.api.records.ContainerStatus;
+import org.apache.hadoop.yarn.api.records.LocalResource;
+import org.apache.hadoop.yarn.api.records.LogAggregationContext;
+import org.apache.hadoop.yarn.api.records.NMToken;
+import org.apache.hadoop.yarn.api.records.NodeId;
+import org.apache.hadoop.yarn.api.records.NodeLabel;
+import org.apache.hadoop.yarn.api.records.NodeReport;
+import org.apache.hadoop.yarn.api.records.PreemptionContainer;
+import org.apache.hadoop.yarn.api.records.PreemptionContract;
+import org.apache.hadoop.yarn.api.records.PreemptionMessage;
+import org.apache.hadoop.yarn.api.records.PreemptionResourceRequest;
+import org.apache.hadoop.yarn.api.records.Priority;
+import org.apache.hadoop.yarn.api.records.QueueInfo;
+import org.apache.hadoop.yarn.api.records.QueueState;
+import org.apache.hadoop.yarn.api.records.QueueUserACLInfo;
+import org.apache.hadoop.yarn.api.records.ReservationDefinition;
+import org.apache.hadoop.yarn.api.records.ReservationId;
+import org.apache.hadoop.yarn.api.records.ReservationRequest;
+import org.apache.hadoop.yarn.api.records.ReservationRequests;
+import org.apache.hadoop.yarn.api.records.Resource;
+import org.apache.hadoop.yarn.api.records.ResourceBlacklistRequest;
+import org.apache.hadoop.yarn.api.records.ResourceOption;
+import org.apache.hadoop.yarn.api.records.ResourceRequest;
+import org.apache.hadoop.yarn.api.records.SerializedException;
+import org.apache.hadoop.yarn.api.records.StrictPreemptionContract;
+import org.apache.hadoop.yarn.api.records.Token;
+import org.apache.hadoop.yarn.api.records.URL;
+import org.apache.hadoop.yarn.api.records.YarnClusterMetrics;
+import org.apache.hadoop.yarn.api.records.impl.pb.ApplicationAttemptIdPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.ApplicationAttemptReportPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.ApplicationIdPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.ApplicationReportPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.ApplicationResourceUsageReportPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.ApplicationSubmissionContextPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.ContainerIdPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.ContainerLaunchContextPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.ContainerPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.ContainerReportPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.ContainerResourceDecreasePBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.ContainerResourceIncreasePBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.ContainerResourceIncreaseRequestPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.ContainerStatusPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.LocalResourcePBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.NMTokenPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.NodeIdPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.NodeLabelPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.NodeReportPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.PreemptionContainerPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.PreemptionContractPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.PreemptionMessagePBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.PreemptionResourceRequestPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.PriorityPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.QueueInfoPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.QueueUserACLInfoPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.ResourceBlacklistRequestPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.ResourceOptionPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.ResourcePBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.ResourceRequestPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.SerializedExceptionPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.StrictPreemptionContractPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.TokenPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.URLPBImpl;
+import org.apache.hadoop.yarn.api.records.impl.pb.YarnClusterMetricsPBImpl;
+import org.apache.hadoop.yarn.proto.YarnProtos.ApplicationAttemptIdProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.ApplicationAttemptReportProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.ApplicationIdProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.ApplicationReportProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.ApplicationResourceUsageReportProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.ApplicationSubmissionContextProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.ContainerIdProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.ContainerLaunchContextProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.ContainerProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.ContainerReportProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.ContainerResourceDecreaseProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.ContainerResourceIncreaseProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.ContainerResourceIncreaseRequestProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.ContainerStatusProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.LocalResourceProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.NodeIdProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.NodeLabelProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.NodeReportProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.PreemptionContainerProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.PreemptionContractProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.PreemptionMessageProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.PreemptionResourceRequestProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.PriorityProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.QueueInfoProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.QueueUserACLInfoProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.ResourceBlacklistRequestProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.ResourceOptionProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.ResourceProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.ResourceRequestProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.SerializedExceptionProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.StrictPreemptionContractProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.URLProto;
+import org.apache.hadoop.yarn.proto.YarnProtos.YarnClusterMetricsProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.AddToClusterNodeLabelsRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.AddToClusterNodeLabelsResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RefreshAdminAclsRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RefreshAdminAclsResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RefreshNodesRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RefreshNodesResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RefreshQueuesRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RefreshQueuesResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RefreshServiceAclsRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RefreshServiceAclsResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RefreshSuperUserGroupsConfigurationRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RefreshSuperUserGroupsConfigurationResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RefreshUserToGroupsMappingsRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RefreshUserToGroupsMappingsResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RemoveFromClusterNodeLabelsRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RemoveFromClusterNodeLabelsResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.ReplaceLabelsOnNodeRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.ReplaceLabelsOnNodeResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.UpdateNodeLabelsRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.UpdateNodeLabelsResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.UpdateNodeResourceRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.UpdateNodeResourceResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.AllocateRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.AllocateResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.FinishApplicationMasterRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.FinishApplicationMasterResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetApplicationAttemptReportRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetApplicationAttemptReportResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetApplicationAttemptsRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetApplicationAttemptsResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetApplicationReportRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetApplicationReportResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetApplicationsRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetApplicationsResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetClusterMetricsRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetClusterMetricsResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetClusterNodeLabelsRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetClusterNodeLabelsResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetClusterNodesRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetClusterNodesResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetContainerReportRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetContainerReportResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetContainerStatusesRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetContainerStatusesResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetContainersRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetContainersResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetLabelsToNodesRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetLabelsToNodesResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetNewApplicationRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetNewApplicationResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetNodesToLabelsRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetNodesToLabelsResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetQueueInfoRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetQueueInfoResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetQueueUserAclsInfoRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetQueueUserAclsInfoResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.KillApplicationRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.KillApplicationResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.MoveApplicationAcrossQueuesRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.MoveApplicationAcrossQueuesResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.NMTokenProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.RegisterApplicationMasterRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.RegisterApplicationMasterResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.ReservationDeleteRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.ReservationDeleteResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.ReservationSubmissionRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.ReservationSubmissionResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.ReservationUpdateRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.ReservationUpdateResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.StartContainerRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.StartContainersRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.StartContainersResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.StopContainersRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.StopContainersResponseProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.SubmitApplicationRequestProto;
+import org.apache.hadoop.yarn.proto.YarnServiceProtos.SubmitApplicationResponseProto;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.AddToClusterNodeLabelsRequestPBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.AddToClusterNodeLabelsResponsePBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RefreshAdminAclsRequestPBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RefreshAdminAclsResponsePBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RefreshNodesRequestPBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RefreshNodesResponsePBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RefreshQueuesRequestPBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RefreshQueuesResponsePBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RefreshServiceAclsRequestPBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RefreshServiceAclsResponsePBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RefreshSuperUserGroupsConfigurationRequestPBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RefreshSuperUserGroupsConfigurationResponsePBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RefreshUserToGroupsMappingsRequestPBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RefreshUserToGroupsMappingsResponsePBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RemoveFromClusterNodeLabelsRequestPBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RemoveFromClusterNodeLabelsResponsePBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.ReplaceLabelsOnNodeRequestPBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.ReplaceLabelsOnNodeResponsePBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.UpdateNodeLabelsRequestPBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.UpdateNodeLabelsResponsePBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.UpdateNodeResourceRequestPBImpl;
+import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.UpdateNodeResourceResponsePBImpl;
 import org.apache.hadoop.yarn.util.resource.Resources;
 import org.junit.Assert;
 import org.junit.BeforeClass;
@@ -212,6 +477,7 @@ public class TestPBImplRecords {
     generateByNewInstance(StrictPreemptionContract.class);
     generateByNewInstance(PreemptionMessage.class);
     generateByNewInstance(StartContainerRequest.class);
+    generateByNewInstance(NodeLabel.class);
     // genByNewInstance does not apply to QueueInfo, cause
     // it is recursive(has sub queues)
     typeValueCache.put(QueueInfo.class, QueueInfo.newInstance("root", 1.0f,
@@ -1015,4 +1281,22 @@ public class TestPBImplRecords {
     validatePBImplRecord(GetLabelsToNodesResponsePBImpl.class,
         GetLabelsToNodesResponseProto.class);
   }
+  
+  @Test
+  public void testNodeLabelAttributesPBImpl() throws Exception {
+    validatePBImplRecord(NodeLabelPBImpl.class,
+        NodeLabelProto.class);
+  }
+  
+  @Test
+  public void testUpdateNodeLabelsRequestPBImpl() throws Exception {
+    validatePBImplRecord(UpdateNodeLabelsRequestPBImpl.class,
+        UpdateNodeLabelsRequestProto.class);
+  }
+  
+  @Test
+  public void testUpdateNodeLabelsResponsePBImpl() throws Exception {
+    validatePBImplRecord(UpdateNodeLabelsResponsePBImpl.class,
+        UpdateNodeLabelsResponseProto.class);
+  }
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/nodelabels/DummyCommonNodeLabelsManager.java

@@ -20,17 +20,20 @@ package org.apache.hadoop.yarn.nodelabels;
 
 import java.io.IOException;
 import java.util.Collection;
+import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.yarn.api.records.NodeId;
+import org.apache.hadoop.yarn.api.records.NodeLabel;
 import org.apache.hadoop.yarn.event.InlineDispatcher;
 
 public class DummyCommonNodeLabelsManager extends CommonNodeLabelsManager {
   Map<NodeId, Set<String>> lastNodeToLabels = null;
   Collection<String> lastAddedlabels = null;
   Collection<String> lastRemovedlabels = null;
+  List<NodeLabel> lastUpdatedNodeLabels = null;
 
   @Override
   public void initNodeLabelStore(Configuration conf) {
@@ -57,6 +60,12 @@ public class DummyCommonNodeLabelsManager extends CommonNodeLabelsManager {
         lastAddedlabels = label;
       }
 
+      @Override
+      public void updateNodeLabels(List<NodeLabel> updatedNodeLabels)
+        throws IOException {
+        lastUpdatedNodeLabels = updatedNodeLabels;
+      }
+
       @Override
       public void close() throws IOException {
         // do nothing 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/nodelabels/TestCommonNodeLabelsManager.java

@@ -29,7 +29,9 @@ import java.util.Set;
 import org.apache.commons.lang.StringUtils;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.yarn.api.records.NodeId;
+import org.apache.hadoop.yarn.api.records.NodeLabel;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
+import org.apache.hadoop.yarn.exceptions.YarnException;
 import org.junit.After;
 import org.junit.Assert;
 import org.junit.Before;
@@ -536,4 +538,30 @@ public class TestCommonNodeLabelsManager extends NodeLabelTestBase {
     Assert.assertTrue("Should failed when #labels > 1 on a host after add",
         failed);
   }
+
+  @Test (timeout = 5000)
+  public void testUpdateNodeLabels() throws Exception {
+    boolean failed = false;
+
+    // should fail: label isn't exist
+    try {
+      mgr.updateNodeLabels(Arrays.asList(NodeLabel.newInstance(
+        "p1", false)));
+    } catch (YarnException e) {
+      failed = true;
+    }
+    Assert.assertTrue("Should fail since the node label doesn't exist", failed);
+
+    mgr.addToCluserNodeLabels(toSet("p1", "p2", "p3"));
+
+    mgr.updateNodeLabels(Arrays.asList(
+        NodeLabel.newInstance("p1", false), NodeLabel.newInstance("p2", true)));
+    Assert.assertEquals("p1", mgr.lastUpdatedNodeLabels.get(0).getNodeLabel());
+    Assert.assertFalse(mgr.lastUpdatedNodeLabels.get(0).getIsExclusive());
+    Assert.assertTrue(mgr.lastUpdatedNodeLabels.get(1).getIsExclusive());
+
+    // Check exclusive for p1/p2
+    Assert.assertFalse(mgr.isExclusiveNodeLabel("p1"));
+    Assert.assertTrue(mgr.isExclusiveNodeLabel("p2"));
+  }
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/nodelabels/TestFileSystemNodeLabelsStore.java

@@ -24,6 +24,7 @@ import java.util.Arrays;
 import java.util.Map;
 
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.yarn.api.records.NodeLabel;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.event.InlineDispatcher;
 import org.junit.After;
@@ -188,7 +189,7 @@ public class TestFileSystemNodeLabelsStore extends NodeLabelTestBase {
   }
   
   @SuppressWarnings({ "unchecked", "rawtypes" })
-  @Test//(timeout = 10000)
+  @Test (timeout = 10000)
   public void testSerilizationAfterRecovery() throws Exception {
     mgr.addToCluserNodeLabels(toSet("p1", "p2", "p3"));
     mgr.addToCluserNodeLabels(toSet("p4"));
@@ -218,6 +219,14 @@ public class TestFileSystemNodeLabelsStore extends NodeLabelTestBase {
      * p4: n4 
      * p6: n6, n7
      */
+
+    mgr.updateNodeLabels(Arrays.asList(NodeLabel.newInstance("p2", false)));
+    mgr.updateNodeLabels(Arrays.asList(NodeLabel.newInstance("p6", false)));
+
+    /*
+     * Set p2/p6 to be exclusive
+     */
+
     // shutdown mgr and start a new mgr
     mgr.stop();
 
@@ -239,6 +248,10 @@ public class TestFileSystemNodeLabelsStore extends NodeLabelTestBase {
         "p4", toSet(toNodeId("n4")),
         "p2", toSet(toNodeId("n2"))));
 
+    Assert.assertFalse(mgr.isExclusiveNodeLabel("p2"));
+    Assert.assertTrue(mgr.isExclusiveNodeLabel("p4"));
+    Assert.assertFalse(mgr.isExclusiveNodeLabel("p6"));
+
     /*
      * Add label p7,p8 then shutdown
      */

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

@@ -77,6 +77,8 @@ import org.apache.hadoop.yarn.server.api.protocolrecords.RemoveFromClusterNodeLa
 import org.apache.hadoop.yarn.server.api.protocolrecords.RemoveFromClusterNodeLabelsResponse;
 import org.apache.hadoop.yarn.server.api.protocolrecords.ReplaceLabelsOnNodeRequest;
 import org.apache.hadoop.yarn.server.api.protocolrecords.ReplaceLabelsOnNodeResponse;
+import org.apache.hadoop.yarn.server.api.protocolrecords.UpdateNodeLabelsRequest;
+import org.apache.hadoop.yarn.server.api.protocolrecords.UpdateNodeLabelsResponse;
 import org.apache.hadoop.yarn.server.api.protocolrecords.UpdateNodeResourceRequest;
 import org.apache.hadoop.yarn.server.api.protocolrecords.UpdateNodeResourceResponse;
 import org.apache.hadoop.yarn.server.resourcemanager.reservation.ReservationSystem;
@@ -663,6 +665,28 @@ public class AdminService extends CompositeService implements
       throw logAndWrapException(ioe, user.getShortUserName(), argName, msg);
     }
   }
+  
+  @Override
+  public UpdateNodeLabelsResponse updateNodeLabels(
+      UpdateNodeLabelsRequest request) throws YarnException, IOException {
+    String argName = "updateNodeLabels";
+    final String msg = "update node labels";
+    UserGroupInformation user = checkAcls(argName);
+
+    checkRMStatus(user.getShortUserName(), argName, msg);
+
+    UpdateNodeLabelsResponse response = UpdateNodeLabelsResponse.newInstance();
+    
+    try {
+      rmContext.getNodeLabelManager().updateNodeLabels(
+          request.getNodeLabels());
+      RMAuditLogger
+      .logSuccess(user.getShortUserName(), argName, "AdminService");
+      return response;
+    } catch (YarnException ioe) {
+      throw logAndWrapException(ioe, user.getShortUserName(), argName, msg);
+    }
+  }
 
   private void checkRMStatus(String user, String argName, String msg)
       throws StandbyException {
@@ -673,11 +697,11 @@ public class AdminService extends CompositeService implements
     }
   }
 
-  private YarnException logAndWrapException(IOException ioe, String user,
+  private YarnException logAndWrapException(Exception exception, String user,
       String argName, String msg) throws YarnException {
-    LOG.info("Exception " + msg, ioe);
+    LOG.info("Exception " + msg, exception);
     RMAuditLogger.logFailure(user, argName, "", 
         "AdminService", "Exception " + msg);
-    return RPCUtil.getRemoteException(ioe);
+    return RPCUtil.getRemoteException(exception);
   }
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/nodelabels/RMNodeLabelsManager.java

@@ -36,7 +36,7 @@ import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.nodelabels.CommonNodeLabelsManager;
-import org.apache.hadoop.yarn.nodelabels.NodeLabel;
+import org.apache.hadoop.yarn.nodelabels.RMNodeLabel;
 import org.apache.hadoop.yarn.security.YarnAuthorizationProvider;
 import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.NodeLabelsUpdateSchedulerEvent;
@@ -45,7 +45,6 @@ import org.apache.hadoop.yarn.util.resource.Resources;
 import com.google.common.collect.ImmutableSet;
 
 public class RMNodeLabelsManager extends CommonNodeLabelsManager {
-  
   protected static class Queue {
     protected Set<String> acccessibleNodeLabels;
     protected Resource resource;
@@ -156,7 +155,7 @@ public class RMNodeLabelsManager extends CommonNodeLabelsManager {
       throws IOException {
     try {
       writeLock.lock();
-      
+
       // get nodesCollection before edition
       Map<String, Host> before = cloneNodeMap(replaceLabelsToNode.keySet());
 
@@ -171,7 +170,6 @@ public class RMNodeLabelsManager extends CommonNodeLabelsManager {
       writeLock.unlock();
     }
   }
-  
 
   /*
    * Following methods are used for setting if a node is up and running, and it
@@ -201,7 +199,7 @@ public class RMNodeLabelsManager extends CommonNodeLabelsManager {
       Set<String> labelsForNode = getLabelsByNode(nodeId);
       if (labelsForNode != null) {
         for (String label : labelsForNode) {
-          NodeLabel labelInfo = labelCollections.get(label);
+          RMNodeLabel labelInfo = labelCollections.get(label);
           if(labelInfo != null) {
             labelInfo.addNodeId(nodeId);
           }
@@ -383,7 +381,7 @@ public class RMNodeLabelsManager extends CommonNodeLabelsManager {
         // no label in the past
         if (oldLabels.isEmpty()) {
           // update labels
-          NodeLabel label = labelCollections.get(NO_LABEL);
+          RMNodeLabel label = labelCollections.get(NO_LABEL);
           label.removeNode(oldNM.resource);
 
           // update queues, all queue can access this node
@@ -393,7 +391,7 @@ public class RMNodeLabelsManager extends CommonNodeLabelsManager {
         } else {
           // update labels
           for (String labelName : oldLabels) {
-            NodeLabel label = labelCollections.get(labelName);
+            RMNodeLabel label = labelCollections.get(labelName);
             if (null == label) {
               continue;
             }
@@ -418,7 +416,7 @@ public class RMNodeLabelsManager extends CommonNodeLabelsManager {
         // no label in the past
         if (newLabels.isEmpty()) {
           // update labels
-          NodeLabel label = labelCollections.get(NO_LABEL);
+          RMNodeLabel label = labelCollections.get(NO_LABEL);
           label.addNode(newNM.resource);
 
           // update queues, all queue can access this node
@@ -428,7 +426,7 @@ public class RMNodeLabelsManager extends CommonNodeLabelsManager {
         } else {
           // update labels
           for (String labelName : newLabels) {
-            NodeLabel label = labelCollections.get(labelName);
+            RMNodeLabel label = labelCollections.get(labelName);
             label.addNode(newNM.resource);
           }
 
@@ -499,13 +497,13 @@ public class RMNodeLabelsManager extends CommonNodeLabelsManager {
     this.rmContext = rmContext;
   }
 
-  public List<NodeLabel> pullRMNodeLabelsInfo() {
+  public List<RMNodeLabel> pullRMNodeLabelsInfo() {
     try {
       readLock.lock();
-      List<NodeLabel> infos = new ArrayList<NodeLabel>();
+      List<RMNodeLabel> infos = new ArrayList<RMNodeLabel>();
 
-      for (Entry<String, NodeLabel> entry : labelCollections.entrySet()) {
+      for (Entry<String, RMNodeLabel> entry : labelCollections.entrySet()) {
-        NodeLabel label = entry.getValue();
+        RMNodeLabel label = entry.getValue();
         infos.add(label.getCopy());
       }
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/NodeLabelsPage.java

@@ -20,7 +20,7 @@ package org.apache.hadoop.yarn.server.resourcemanager.webapp;
 
 import static org.apache.hadoop.yarn.webapp.view.JQueryUI.DATATABLES_ID;
 
-import org.apache.hadoop.yarn.nodelabels.NodeLabel;
+import org.apache.hadoop.yarn.nodelabels.RMNodeLabel;
 import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
 import org.apache.hadoop.yarn.server.resourcemanager.nodelabels.RMNodeLabelsManager;
 import org.apache.hadoop.yarn.webapp.SubView;
@@ -55,7 +55,7 @@ public class NodeLabelsPage extends RmView {
           tbody();
   
       RMNodeLabelsManager nlm = rm.getRMContext().getNodeLabelManager();
-      for (NodeLabel info : nlm.pullRMNodeLabelsInfo()) {
+      for (RMNodeLabel info : nlm.pullRMNodeLabelsInfo()) {
         TR<TBODY<TABLE<Hamlet>>> row =
             tbody.tr().td(
                 info.getLabelName().isEmpty() ? "<NO_LABEL>" : info

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

@@ -20,11 +20,13 @@ package org.apache.hadoop.yarn.server.resourcemanager.nodelabels;
 
 import java.io.IOException;
 import java.util.Collection;
+import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.yarn.api.records.NodeId;
+import org.apache.hadoop.yarn.api.records.NodeLabel;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.nodelabels.NodeLabelsStore;
 
@@ -63,6 +65,12 @@ public class NullRMNodeLabelsManager extends RMNodeLabelsManager {
       public void close() throws IOException {
         // do nothing
       }
+
+      @Override
+      public void updateNodeLabels(List<NodeLabel> updatedNodeLabels)
+          throws IOException {
+        // do nothing
+      }
     };
   }
 

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

@@ -29,7 +29,7 @@ import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.nodelabels.CommonNodeLabelsManager;
-import org.apache.hadoop.yarn.nodelabels.NodeLabel;
+import org.apache.hadoop.yarn.nodelabels.RMNodeLabel;
 import org.apache.hadoop.yarn.nodelabels.NodeLabelTestBase;
 import org.apache.hadoop.yarn.util.resource.Resources;
 import org.junit.After;
@@ -476,8 +476,8 @@ public class TestRMNodeLabelsManager extends NodeLabelTestBase {
     
   }
   
-  private void checkNodeLabelInfo(List<NodeLabel> infos, String labelName, int activeNMs, int memory) {
+  private void checkNodeLabelInfo(List<RMNodeLabel> infos, String labelName, int activeNMs, int memory) {
-    for (NodeLabel info : infos) {
+    for (RMNodeLabel info : infos) {
       if (info.getLabelName().equals(labelName)) {
         Assert.assertEquals(activeNMs, info.getNumActiveNMs());
         Assert.assertEquals(memory, info.getResource().getMemory());
@@ -499,7 +499,7 @@ public class TestRMNodeLabelsManager extends NodeLabelTestBase {
         toNodeId("n2"), toSet("x"), toNodeId("n3"), toSet("y")));
     
     // x, y, z and ""
-    List<NodeLabel> infos = mgr.pullRMNodeLabelsInfo();
+    List<RMNodeLabel> infos = mgr.pullRMNodeLabelsInfo();
     Assert.assertEquals(4, infos.size());
     checkNodeLabelInfo(infos, RMNodeLabelsManager.NO_LABEL, 2, 20);
     checkNodeLabelInfo(infos, "x", 2, 20);