HDFS-2520. Add protobuf service for InterDatanodeProtocol. Contributed by Suresh Srinivas.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1204709 13f79535-47bb-0310-9956-ffa450edef68

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -9,6 +9,8 @@ Trunk (unreleased changes)
 
     HDFS-2518. Add protobuf service for NamenodeProtocol. (suresh)
 
+    HDFS-2520. Add protobuf service for InterDatanodeProtocol. (suresh)
+
   IMPROVEMENTS
 
     HADOOP-7524 Change RPC to allow multiple protocols including multuple 

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/proto/InterDatanodeProtocolProtos.java

@@ -0,0 +1,2516 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: InterDatanodeProtocol.proto
+
+package org.apache.hadoop.hdfs.protocol.proto;
+
+public final class InterDatanodeProtocolProtos {
+  private InterDatanodeProtocolProtos() {}
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistry registry) {
+  }
+  public interface InitReplicaRecoveryRequestProtoOrBuilder
+      extends com.google.protobuf.MessageOrBuilder {
+    
+    // required .RecoveringBlockProto block = 1;
+    boolean hasBlock();
+    org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto getBlock();
+    org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProtoOrBuilder getBlockOrBuilder();
+  }
+  public static final class InitReplicaRecoveryRequestProto extends
+      com.google.protobuf.GeneratedMessage
+      implements InitReplicaRecoveryRequestProtoOrBuilder {
+    // Use InitReplicaRecoveryRequestProto.newBuilder() to construct.
+    private InitReplicaRecoveryRequestProto(Builder builder) {
+      super(builder);
+    }
+    private InitReplicaRecoveryRequestProto(boolean noInit) {}
+    
+    private static final InitReplicaRecoveryRequestProto defaultInstance;
+    public static InitReplicaRecoveryRequestProto getDefaultInstance() {
+      return defaultInstance;
+    }
+    
+    public InitReplicaRecoveryRequestProto getDefaultInstanceForType() {
+      return defaultInstance;
+    }
+    
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.internal_static_InitReplicaRecoveryRequestProto_descriptor;
+    }
+    
+    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.internal_static_InitReplicaRecoveryRequestProto_fieldAccessorTable;
+    }
+    
+    private int bitField0_;
+    // required .RecoveringBlockProto block = 1;
+    public static final int BLOCK_FIELD_NUMBER = 1;
+    private org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto block_;
+    public boolean hasBlock() {
+      return ((bitField0_ & 0x00000001) == 0x00000001);
+    }
+    public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto getBlock() {
+      return block_;
+    }
+    public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProtoOrBuilder getBlockOrBuilder() {
+      return block_;
+    }
+    
+    private void initFields() {
+      block_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto.getDefaultInstance();
+    }
+    private byte memoizedIsInitialized = -1;
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized != -1) return isInitialized == 1;
+      
+      if (!hasBlock()) {
+        memoizedIsInitialized = 0;
+        return false;
+      }
+      if (!getBlock().isInitialized()) {
+        memoizedIsInitialized = 0;
+        return false;
+      }
+      memoizedIsInitialized = 1;
+      return true;
+    }
+    
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      getSerializedSize();
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        output.writeMessage(1, block_);
+      }
+      getUnknownFields().writeTo(output);
+    }
+    
+    private int memoizedSerializedSize = -1;
+    public int getSerializedSize() {
+      int size = memoizedSerializedSize;
+      if (size != -1) return size;
+    
+      size = 0;
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(1, block_);
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSerializedSize = size;
+      return size;
+    }
+    
+    private static final long serialVersionUID = 0L;
+    @java.lang.Override
+    protected java.lang.Object writeReplace()
+        throws java.io.ObjectStreamException {
+      return super.writeReplace();
+    }
+    
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+       return true;
+      }
+      if (!(obj instanceof org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto)) {
+        return super.equals(obj);
+      }
+      org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto other = (org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto) obj;
+      
+      boolean result = true;
+      result = result && (hasBlock() == other.hasBlock());
+      if (hasBlock()) {
+        result = result && getBlock()
+            .equals(other.getBlock());
+      }
+      result = result &&
+          getUnknownFields().equals(other.getUnknownFields());
+      return result;
+    }
+    
+    @java.lang.Override
+    public int hashCode() {
+      int hash = 41;
+      hash = (19 * hash) + getDescriptorForType().hashCode();
+      if (hasBlock()) {
+        hash = (37 * hash) + BLOCK_FIELD_NUMBER;
+        hash = (53 * hash) + getBlock().hashCode();
+      }
+      hash = (29 * hash) + getUnknownFields().hashCode();
+      return hash;
+    }
+    
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data).buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data, extensionRegistry)
+               .buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data).buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data, extensionRegistry)
+               .buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input).buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input, extensionRegistry)
+               .buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      Builder builder = newBuilder();
+      if (builder.mergeDelimitedFrom(input)) {
+        return builder.buildParsed();
+      } else {
+        return null;
+      }
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      Builder builder = newBuilder();
+      if (builder.mergeDelimitedFrom(input, extensionRegistry)) {
+        return builder.buildParsed();
+      } else {
+        return null;
+      }
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input).buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input, extensionRegistry)
+               .buildParsed();
+    }
+    
+    public static Builder newBuilder() { return Builder.create(); }
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder(org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto prototype) {
+      return newBuilder().mergeFrom(prototype);
+    }
+    public Builder toBuilder() { return newBuilder(this); }
+    
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessage.Builder<Builder>
+       implements org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProtoOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.internal_static_InitReplicaRecoveryRequestProto_descriptor;
+      }
+      
+      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.internal_static_InitReplicaRecoveryRequestProto_fieldAccessorTable;
+      }
+      
+      // Construct using org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+      
+      private Builder(BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
+          getBlockFieldBuilder();
+        }
+      }
+      private static Builder create() {
+        return new Builder();
+      }
+      
+      public Builder clear() {
+        super.clear();
+        if (blockBuilder_ == null) {
+          block_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto.getDefaultInstance();
+        } else {
+          blockBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000001);
+        return this;
+      }
+      
+      public Builder clone() {
+        return create().mergeFrom(buildPartial());
+      }
+      
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto.getDescriptor();
+      }
+      
+      public org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto getDefaultInstanceForType() {
+        return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto.getDefaultInstance();
+      }
+      
+      public org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto build() {
+        org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+      
+      private org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto buildParsed()
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(
+            result).asInvalidProtocolBufferException();
+        }
+        return result;
+      }
+      
+      public org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto buildPartial() {
+        org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto result = new org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto(this);
+        int from_bitField0_ = bitField0_;
+        int to_bitField0_ = 0;
+        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
+          to_bitField0_ |= 0x00000001;
+        }
+        if (blockBuilder_ == null) {
+          result.block_ = block_;
+        } else {
+          result.block_ = blockBuilder_.build();
+        }
+        result.bitField0_ = to_bitField0_;
+        onBuilt();
+        return result;
+      }
+      
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto) {
+          return mergeFrom((org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+      
+      public Builder mergeFrom(org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto other) {
+        if (other == org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto.getDefaultInstance()) return this;
+        if (other.hasBlock()) {
+          mergeBlock(other.getBlock());
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        return this;
+      }
+      
+      public final boolean isInitialized() {
+        if (!hasBlock()) {
+          
+          return false;
+        }
+        if (!getBlock().isInitialized()) {
+          
+          return false;
+        }
+        return true;
+      }
+      
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder(
+            this.getUnknownFields());
+        while (true) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              this.setUnknownFields(unknownFields.build());
+              onChanged();
+              return this;
+            default: {
+              if (!parseUnknownField(input, unknownFields,
+                                     extensionRegistry, tag)) {
+                this.setUnknownFields(unknownFields.build());
+                onChanged();
+                return this;
+              }
+              break;
+            }
+            case 10: {
+              org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto.Builder subBuilder = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto.newBuilder();
+              if (hasBlock()) {
+                subBuilder.mergeFrom(getBlock());
+              }
+              input.readMessage(subBuilder, extensionRegistry);
+              setBlock(subBuilder.buildPartial());
+              break;
+            }
+          }
+        }
+      }
+      
+      private int bitField0_;
+      
+      // required .RecoveringBlockProto block = 1;
+      private org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto block_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto.getDefaultInstance();
+      private com.google.protobuf.SingleFieldBuilder<
+          org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto.Builder, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProtoOrBuilder> blockBuilder_;
+      public boolean hasBlock() {
+        return ((bitField0_ & 0x00000001) == 0x00000001);
+      }
+      public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto getBlock() {
+        if (blockBuilder_ == null) {
+          return block_;
+        } else {
+          return blockBuilder_.getMessage();
+        }
+      }
+      public Builder setBlock(org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto value) {
+        if (blockBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          block_ = value;
+          onChanged();
+        } else {
+          blockBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000001;
+        return this;
+      }
+      public Builder setBlock(
+          org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto.Builder builderForValue) {
+        if (blockBuilder_ == null) {
+          block_ = builderForValue.build();
+          onChanged();
+        } else {
+          blockBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000001;
+        return this;
+      }
+      public Builder mergeBlock(org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto value) {
+        if (blockBuilder_ == null) {
+          if (((bitField0_ & 0x00000001) == 0x00000001) &&
+              block_ != org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto.getDefaultInstance()) {
+            block_ =
+              org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto.newBuilder(block_).mergeFrom(value).buildPartial();
+          } else {
+            block_ = value;
+          }
+          onChanged();
+        } else {
+          blockBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000001;
+        return this;
+      }
+      public Builder clearBlock() {
+        if (blockBuilder_ == null) {
+          block_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto.getDefaultInstance();
+          onChanged();
+        } else {
+          blockBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000001);
+        return this;
+      }
+      public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto.Builder getBlockBuilder() {
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return getBlockFieldBuilder().getBuilder();
+      }
+      public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProtoOrBuilder getBlockOrBuilder() {
+        if (blockBuilder_ != null) {
+          return blockBuilder_.getMessageOrBuilder();
+        } else {
+          return block_;
+        }
+      }
+      private com.google.protobuf.SingleFieldBuilder<
+          org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto.Builder, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProtoOrBuilder> 
+          getBlockFieldBuilder() {
+        if (blockBuilder_ == null) {
+          blockBuilder_ = new com.google.protobuf.SingleFieldBuilder<
+              org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProto.Builder, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.RecoveringBlockProtoOrBuilder>(
+                  block_,
+                  getParentForChildren(),
+                  isClean());
+          block_ = null;
+        }
+        return blockBuilder_;
+      }
+      
+      // @@protoc_insertion_point(builder_scope:InitReplicaRecoveryRequestProto)
+    }
+    
+    static {
+      defaultInstance = new InitReplicaRecoveryRequestProto(true);
+      defaultInstance.initFields();
+    }
+    
+    // @@protoc_insertion_point(class_scope:InitReplicaRecoveryRequestProto)
+  }
+  
+  public interface InitReplicaRecoveryResponseProtoOrBuilder
+      extends com.google.protobuf.MessageOrBuilder {
+    
+    // required .ReplicaState state = 1;
+    boolean hasState();
+    org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ReplicaState getState();
+    
+    // required .BlockProto block = 2;
+    boolean hasBlock();
+    org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto getBlock();
+    org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProtoOrBuilder getBlockOrBuilder();
+  }
+  public static final class InitReplicaRecoveryResponseProto extends
+      com.google.protobuf.GeneratedMessage
+      implements InitReplicaRecoveryResponseProtoOrBuilder {
+    // Use InitReplicaRecoveryResponseProto.newBuilder() to construct.
+    private InitReplicaRecoveryResponseProto(Builder builder) {
+      super(builder);
+    }
+    private InitReplicaRecoveryResponseProto(boolean noInit) {}
+    
+    private static final InitReplicaRecoveryResponseProto defaultInstance;
+    public static InitReplicaRecoveryResponseProto getDefaultInstance() {
+      return defaultInstance;
+    }
+    
+    public InitReplicaRecoveryResponseProto getDefaultInstanceForType() {
+      return defaultInstance;
+    }
+    
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.internal_static_InitReplicaRecoveryResponseProto_descriptor;
+    }
+    
+    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.internal_static_InitReplicaRecoveryResponseProto_fieldAccessorTable;
+    }
+    
+    private int bitField0_;
+    // required .ReplicaState state = 1;
+    public static final int STATE_FIELD_NUMBER = 1;
+    private org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ReplicaState state_;
+    public boolean hasState() {
+      return ((bitField0_ & 0x00000001) == 0x00000001);
+    }
+    public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ReplicaState getState() {
+      return state_;
+    }
+    
+    // required .BlockProto block = 2;
+    public static final int BLOCK_FIELD_NUMBER = 2;
+    private org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto block_;
+    public boolean hasBlock() {
+      return ((bitField0_ & 0x00000002) == 0x00000002);
+    }
+    public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto getBlock() {
+      return block_;
+    }
+    public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProtoOrBuilder getBlockOrBuilder() {
+      return block_;
+    }
+    
+    private void initFields() {
+      state_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ReplicaState.FINALIZED;
+      block_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto.getDefaultInstance();
+    }
+    private byte memoizedIsInitialized = -1;
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized != -1) return isInitialized == 1;
+      
+      if (!hasState()) {
+        memoizedIsInitialized = 0;
+        return false;
+      }
+      if (!hasBlock()) {
+        memoizedIsInitialized = 0;
+        return false;
+      }
+      if (!getBlock().isInitialized()) {
+        memoizedIsInitialized = 0;
+        return false;
+      }
+      memoizedIsInitialized = 1;
+      return true;
+    }
+    
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      getSerializedSize();
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        output.writeEnum(1, state_.getNumber());
+      }
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+        output.writeMessage(2, block_);
+      }
+      getUnknownFields().writeTo(output);
+    }
+    
+    private int memoizedSerializedSize = -1;
+    public int getSerializedSize() {
+      int size = memoizedSerializedSize;
+      if (size != -1) return size;
+    
+      size = 0;
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeEnumSize(1, state_.getNumber());
+      }
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(2, block_);
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSerializedSize = size;
+      return size;
+    }
+    
+    private static final long serialVersionUID = 0L;
+    @java.lang.Override
+    protected java.lang.Object writeReplace()
+        throws java.io.ObjectStreamException {
+      return super.writeReplace();
+    }
+    
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+       return true;
+      }
+      if (!(obj instanceof org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto)) {
+        return super.equals(obj);
+      }
+      org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto other = (org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto) obj;
+      
+      boolean result = true;
+      result = result && (hasState() == other.hasState());
+      if (hasState()) {
+        result = result &&
+            (getState() == other.getState());
+      }
+      result = result && (hasBlock() == other.hasBlock());
+      if (hasBlock()) {
+        result = result && getBlock()
+            .equals(other.getBlock());
+      }
+      result = result &&
+          getUnknownFields().equals(other.getUnknownFields());
+      return result;
+    }
+    
+    @java.lang.Override
+    public int hashCode() {
+      int hash = 41;
+      hash = (19 * hash) + getDescriptorForType().hashCode();
+      if (hasState()) {
+        hash = (37 * hash) + STATE_FIELD_NUMBER;
+        hash = (53 * hash) + hashEnum(getState());
+      }
+      if (hasBlock()) {
+        hash = (37 * hash) + BLOCK_FIELD_NUMBER;
+        hash = (53 * hash) + getBlock().hashCode();
+      }
+      hash = (29 * hash) + getUnknownFields().hashCode();
+      return hash;
+    }
+    
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data).buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data, extensionRegistry)
+               .buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data).buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data, extensionRegistry)
+               .buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input).buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input, extensionRegistry)
+               .buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      Builder builder = newBuilder();
+      if (builder.mergeDelimitedFrom(input)) {
+        return builder.buildParsed();
+      } else {
+        return null;
+      }
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      Builder builder = newBuilder();
+      if (builder.mergeDelimitedFrom(input, extensionRegistry)) {
+        return builder.buildParsed();
+      } else {
+        return null;
+      }
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input).buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input, extensionRegistry)
+               .buildParsed();
+    }
+    
+    public static Builder newBuilder() { return Builder.create(); }
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder(org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto prototype) {
+      return newBuilder().mergeFrom(prototype);
+    }
+    public Builder toBuilder() { return newBuilder(this); }
+    
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessage.Builder<Builder>
+       implements org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProtoOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.internal_static_InitReplicaRecoveryResponseProto_descriptor;
+      }
+      
+      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.internal_static_InitReplicaRecoveryResponseProto_fieldAccessorTable;
+      }
+      
+      // Construct using org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+      
+      private Builder(BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
+          getBlockFieldBuilder();
+        }
+      }
+      private static Builder create() {
+        return new Builder();
+      }
+      
+      public Builder clear() {
+        super.clear();
+        state_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ReplicaState.FINALIZED;
+        bitField0_ = (bitField0_ & ~0x00000001);
+        if (blockBuilder_ == null) {
+          block_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto.getDefaultInstance();
+        } else {
+          blockBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000002);
+        return this;
+      }
+      
+      public Builder clone() {
+        return create().mergeFrom(buildPartial());
+      }
+      
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto.getDescriptor();
+      }
+      
+      public org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto getDefaultInstanceForType() {
+        return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto.getDefaultInstance();
+      }
+      
+      public org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto build() {
+        org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+      
+      private org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto buildParsed()
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(
+            result).asInvalidProtocolBufferException();
+        }
+        return result;
+      }
+      
+      public org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto buildPartial() {
+        org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto result = new org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto(this);
+        int from_bitField0_ = bitField0_;
+        int to_bitField0_ = 0;
+        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
+          to_bitField0_ |= 0x00000001;
+        }
+        result.state_ = state_;
+        if (((from_bitField0_ & 0x00000002) == 0x00000002)) {
+          to_bitField0_ |= 0x00000002;
+        }
+        if (blockBuilder_ == null) {
+          result.block_ = block_;
+        } else {
+          result.block_ = blockBuilder_.build();
+        }
+        result.bitField0_ = to_bitField0_;
+        onBuilt();
+        return result;
+      }
+      
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto) {
+          return mergeFrom((org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+      
+      public Builder mergeFrom(org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto other) {
+        if (other == org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto.getDefaultInstance()) return this;
+        if (other.hasState()) {
+          setState(other.getState());
+        }
+        if (other.hasBlock()) {
+          mergeBlock(other.getBlock());
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        return this;
+      }
+      
+      public final boolean isInitialized() {
+        if (!hasState()) {
+          
+          return false;
+        }
+        if (!hasBlock()) {
+          
+          return false;
+        }
+        if (!getBlock().isInitialized()) {
+          
+          return false;
+        }
+        return true;
+      }
+      
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder(
+            this.getUnknownFields());
+        while (true) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              this.setUnknownFields(unknownFields.build());
+              onChanged();
+              return this;
+            default: {
+              if (!parseUnknownField(input, unknownFields,
+                                     extensionRegistry, tag)) {
+                this.setUnknownFields(unknownFields.build());
+                onChanged();
+                return this;
+              }
+              break;
+            }
+            case 8: {
+              int rawValue = input.readEnum();
+              org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ReplicaState value = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ReplicaState.valueOf(rawValue);
+              if (value == null) {
+                unknownFields.mergeVarintField(1, rawValue);
+              } else {
+                bitField0_ |= 0x00000001;
+                state_ = value;
+              }
+              break;
+            }
+            case 18: {
+              org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto.Builder subBuilder = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto.newBuilder();
+              if (hasBlock()) {
+                subBuilder.mergeFrom(getBlock());
+              }
+              input.readMessage(subBuilder, extensionRegistry);
+              setBlock(subBuilder.buildPartial());
+              break;
+            }
+          }
+        }
+      }
+      
+      private int bitField0_;
+      
+      // required .ReplicaState state = 1;
+      private org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ReplicaState state_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ReplicaState.FINALIZED;
+      public boolean hasState() {
+        return ((bitField0_ & 0x00000001) == 0x00000001);
+      }
+      public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ReplicaState getState() {
+        return state_;
+      }
+      public Builder setState(org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ReplicaState value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        bitField0_ |= 0x00000001;
+        state_ = value;
+        onChanged();
+        return this;
+      }
+      public Builder clearState() {
+        bitField0_ = (bitField0_ & ~0x00000001);
+        state_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ReplicaState.FINALIZED;
+        onChanged();
+        return this;
+      }
+      
+      // required .BlockProto block = 2;
+      private org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto block_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto.getDefaultInstance();
+      private com.google.protobuf.SingleFieldBuilder<
+          org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto.Builder, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProtoOrBuilder> blockBuilder_;
+      public boolean hasBlock() {
+        return ((bitField0_ & 0x00000002) == 0x00000002);
+      }
+      public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto getBlock() {
+        if (blockBuilder_ == null) {
+          return block_;
+        } else {
+          return blockBuilder_.getMessage();
+        }
+      }
+      public Builder setBlock(org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto value) {
+        if (blockBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          block_ = value;
+          onChanged();
+        } else {
+          blockBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000002;
+        return this;
+      }
+      public Builder setBlock(
+          org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto.Builder builderForValue) {
+        if (blockBuilder_ == null) {
+          block_ = builderForValue.build();
+          onChanged();
+        } else {
+          blockBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000002;
+        return this;
+      }
+      public Builder mergeBlock(org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto value) {
+        if (blockBuilder_ == null) {
+          if (((bitField0_ & 0x00000002) == 0x00000002) &&
+              block_ != org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto.getDefaultInstance()) {
+            block_ =
+              org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto.newBuilder(block_).mergeFrom(value).buildPartial();
+          } else {
+            block_ = value;
+          }
+          onChanged();
+        } else {
+          blockBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000002;
+        return this;
+      }
+      public Builder clearBlock() {
+        if (blockBuilder_ == null) {
+          block_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto.getDefaultInstance();
+          onChanged();
+        } else {
+          blockBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000002);
+        return this;
+      }
+      public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto.Builder getBlockBuilder() {
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return getBlockFieldBuilder().getBuilder();
+      }
+      public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProtoOrBuilder getBlockOrBuilder() {
+        if (blockBuilder_ != null) {
+          return blockBuilder_.getMessageOrBuilder();
+        } else {
+          return block_;
+        }
+      }
+      private com.google.protobuf.SingleFieldBuilder<
+          org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto.Builder, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProtoOrBuilder> 
+          getBlockFieldBuilder() {
+        if (blockBuilder_ == null) {
+          blockBuilder_ = new com.google.protobuf.SingleFieldBuilder<
+              org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProto.Builder, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.BlockProtoOrBuilder>(
+                  block_,
+                  getParentForChildren(),
+                  isClean());
+          block_ = null;
+        }
+        return blockBuilder_;
+      }
+      
+      // @@protoc_insertion_point(builder_scope:InitReplicaRecoveryResponseProto)
+    }
+    
+    static {
+      defaultInstance = new InitReplicaRecoveryResponseProto(true);
+      defaultInstance.initFields();
+    }
+    
+    // @@protoc_insertion_point(class_scope:InitReplicaRecoveryResponseProto)
+  }
+  
+  public interface UpdateReplicaUnderRecoveryRequestProtoOrBuilder
+      extends com.google.protobuf.MessageOrBuilder {
+    
+    // required .ExtendedBlockProto block = 1;
+    boolean hasBlock();
+    org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto getBlock();
+    org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProtoOrBuilder getBlockOrBuilder();
+    
+    // required uint64 recoveryId = 2;
+    boolean hasRecoveryId();
+    long getRecoveryId();
+    
+    // required uint64 newLength = 3;
+    boolean hasNewLength();
+    long getNewLength();
+  }
+  public static final class UpdateReplicaUnderRecoveryRequestProto extends
+      com.google.protobuf.GeneratedMessage
+      implements UpdateReplicaUnderRecoveryRequestProtoOrBuilder {
+    // Use UpdateReplicaUnderRecoveryRequestProto.newBuilder() to construct.
+    private UpdateReplicaUnderRecoveryRequestProto(Builder builder) {
+      super(builder);
+    }
+    private UpdateReplicaUnderRecoveryRequestProto(boolean noInit) {}
+    
+    private static final UpdateReplicaUnderRecoveryRequestProto defaultInstance;
+    public static UpdateReplicaUnderRecoveryRequestProto getDefaultInstance() {
+      return defaultInstance;
+    }
+    
+    public UpdateReplicaUnderRecoveryRequestProto getDefaultInstanceForType() {
+      return defaultInstance;
+    }
+    
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.internal_static_UpdateReplicaUnderRecoveryRequestProto_descriptor;
+    }
+    
+    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.internal_static_UpdateReplicaUnderRecoveryRequestProto_fieldAccessorTable;
+    }
+    
+    private int bitField0_;
+    // required .ExtendedBlockProto block = 1;
+    public static final int BLOCK_FIELD_NUMBER = 1;
+    private org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto block_;
+    public boolean hasBlock() {
+      return ((bitField0_ & 0x00000001) == 0x00000001);
+    }
+    public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto getBlock() {
+      return block_;
+    }
+    public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProtoOrBuilder getBlockOrBuilder() {
+      return block_;
+    }
+    
+    // required uint64 recoveryId = 2;
+    public static final int RECOVERYID_FIELD_NUMBER = 2;
+    private long recoveryId_;
+    public boolean hasRecoveryId() {
+      return ((bitField0_ & 0x00000002) == 0x00000002);
+    }
+    public long getRecoveryId() {
+      return recoveryId_;
+    }
+    
+    // required uint64 newLength = 3;
+    public static final int NEWLENGTH_FIELD_NUMBER = 3;
+    private long newLength_;
+    public boolean hasNewLength() {
+      return ((bitField0_ & 0x00000004) == 0x00000004);
+    }
+    public long getNewLength() {
+      return newLength_;
+    }
+    
+    private void initFields() {
+      block_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.getDefaultInstance();
+      recoveryId_ = 0L;
+      newLength_ = 0L;
+    }
+    private byte memoizedIsInitialized = -1;
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized != -1) return isInitialized == 1;
+      
+      if (!hasBlock()) {
+        memoizedIsInitialized = 0;
+        return false;
+      }
+      if (!hasRecoveryId()) {
+        memoizedIsInitialized = 0;
+        return false;
+      }
+      if (!hasNewLength()) {
+        memoizedIsInitialized = 0;
+        return false;
+      }
+      if (!getBlock().isInitialized()) {
+        memoizedIsInitialized = 0;
+        return false;
+      }
+      memoizedIsInitialized = 1;
+      return true;
+    }
+    
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      getSerializedSize();
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        output.writeMessage(1, block_);
+      }
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+        output.writeUInt64(2, recoveryId_);
+      }
+      if (((bitField0_ & 0x00000004) == 0x00000004)) {
+        output.writeUInt64(3, newLength_);
+      }
+      getUnknownFields().writeTo(output);
+    }
+    
+    private int memoizedSerializedSize = -1;
+    public int getSerializedSize() {
+      int size = memoizedSerializedSize;
+      if (size != -1) return size;
+    
+      size = 0;
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(1, block_);
+      }
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeUInt64Size(2, recoveryId_);
+      }
+      if (((bitField0_ & 0x00000004) == 0x00000004)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeUInt64Size(3, newLength_);
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSerializedSize = size;
+      return size;
+    }
+    
+    private static final long serialVersionUID = 0L;
+    @java.lang.Override
+    protected java.lang.Object writeReplace()
+        throws java.io.ObjectStreamException {
+      return super.writeReplace();
+    }
+    
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+       return true;
+      }
+      if (!(obj instanceof org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto)) {
+        return super.equals(obj);
+      }
+      org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto other = (org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto) obj;
+      
+      boolean result = true;
+      result = result && (hasBlock() == other.hasBlock());
+      if (hasBlock()) {
+        result = result && getBlock()
+            .equals(other.getBlock());
+      }
+      result = result && (hasRecoveryId() == other.hasRecoveryId());
+      if (hasRecoveryId()) {
+        result = result && (getRecoveryId()
+            == other.getRecoveryId());
+      }
+      result = result && (hasNewLength() == other.hasNewLength());
+      if (hasNewLength()) {
+        result = result && (getNewLength()
+            == other.getNewLength());
+      }
+      result = result &&
+          getUnknownFields().equals(other.getUnknownFields());
+      return result;
+    }
+    
+    @java.lang.Override
+    public int hashCode() {
+      int hash = 41;
+      hash = (19 * hash) + getDescriptorForType().hashCode();
+      if (hasBlock()) {
+        hash = (37 * hash) + BLOCK_FIELD_NUMBER;
+        hash = (53 * hash) + getBlock().hashCode();
+      }
+      if (hasRecoveryId()) {
+        hash = (37 * hash) + RECOVERYID_FIELD_NUMBER;
+        hash = (53 * hash) + hashLong(getRecoveryId());
+      }
+      if (hasNewLength()) {
+        hash = (37 * hash) + NEWLENGTH_FIELD_NUMBER;
+        hash = (53 * hash) + hashLong(getNewLength());
+      }
+      hash = (29 * hash) + getUnknownFields().hashCode();
+      return hash;
+    }
+    
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data).buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data, extensionRegistry)
+               .buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data).buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data, extensionRegistry)
+               .buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input).buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input, extensionRegistry)
+               .buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      Builder builder = newBuilder();
+      if (builder.mergeDelimitedFrom(input)) {
+        return builder.buildParsed();
+      } else {
+        return null;
+      }
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      Builder builder = newBuilder();
+      if (builder.mergeDelimitedFrom(input, extensionRegistry)) {
+        return builder.buildParsed();
+      } else {
+        return null;
+      }
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input).buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input, extensionRegistry)
+               .buildParsed();
+    }
+    
+    public static Builder newBuilder() { return Builder.create(); }
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder(org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto prototype) {
+      return newBuilder().mergeFrom(prototype);
+    }
+    public Builder toBuilder() { return newBuilder(this); }
+    
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessage.Builder<Builder>
+       implements org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProtoOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.internal_static_UpdateReplicaUnderRecoveryRequestProto_descriptor;
+      }
+      
+      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.internal_static_UpdateReplicaUnderRecoveryRequestProto_fieldAccessorTable;
+      }
+      
+      // Construct using org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+      
+      private Builder(BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
+          getBlockFieldBuilder();
+        }
+      }
+      private static Builder create() {
+        return new Builder();
+      }
+      
+      public Builder clear() {
+        super.clear();
+        if (blockBuilder_ == null) {
+          block_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.getDefaultInstance();
+        } else {
+          blockBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000001);
+        recoveryId_ = 0L;
+        bitField0_ = (bitField0_ & ~0x00000002);
+        newLength_ = 0L;
+        bitField0_ = (bitField0_ & ~0x00000004);
+        return this;
+      }
+      
+      public Builder clone() {
+        return create().mergeFrom(buildPartial());
+      }
+      
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto.getDescriptor();
+      }
+      
+      public org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto getDefaultInstanceForType() {
+        return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto.getDefaultInstance();
+      }
+      
+      public org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto build() {
+        org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+      
+      private org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto buildParsed()
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(
+            result).asInvalidProtocolBufferException();
+        }
+        return result;
+      }
+      
+      public org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto buildPartial() {
+        org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto result = new org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto(this);
+        int from_bitField0_ = bitField0_;
+        int to_bitField0_ = 0;
+        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
+          to_bitField0_ |= 0x00000001;
+        }
+        if (blockBuilder_ == null) {
+          result.block_ = block_;
+        } else {
+          result.block_ = blockBuilder_.build();
+        }
+        if (((from_bitField0_ & 0x00000002) == 0x00000002)) {
+          to_bitField0_ |= 0x00000002;
+        }
+        result.recoveryId_ = recoveryId_;
+        if (((from_bitField0_ & 0x00000004) == 0x00000004)) {
+          to_bitField0_ |= 0x00000004;
+        }
+        result.newLength_ = newLength_;
+        result.bitField0_ = to_bitField0_;
+        onBuilt();
+        return result;
+      }
+      
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto) {
+          return mergeFrom((org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+      
+      public Builder mergeFrom(org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto other) {
+        if (other == org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto.getDefaultInstance()) return this;
+        if (other.hasBlock()) {
+          mergeBlock(other.getBlock());
+        }
+        if (other.hasRecoveryId()) {
+          setRecoveryId(other.getRecoveryId());
+        }
+        if (other.hasNewLength()) {
+          setNewLength(other.getNewLength());
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        return this;
+      }
+      
+      public final boolean isInitialized() {
+        if (!hasBlock()) {
+          
+          return false;
+        }
+        if (!hasRecoveryId()) {
+          
+          return false;
+        }
+        if (!hasNewLength()) {
+          
+          return false;
+        }
+        if (!getBlock().isInitialized()) {
+          
+          return false;
+        }
+        return true;
+      }
+      
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder(
+            this.getUnknownFields());
+        while (true) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              this.setUnknownFields(unknownFields.build());
+              onChanged();
+              return this;
+            default: {
+              if (!parseUnknownField(input, unknownFields,
+                                     extensionRegistry, tag)) {
+                this.setUnknownFields(unknownFields.build());
+                onChanged();
+                return this;
+              }
+              break;
+            }
+            case 10: {
+              org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.Builder subBuilder = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.newBuilder();
+              if (hasBlock()) {
+                subBuilder.mergeFrom(getBlock());
+              }
+              input.readMessage(subBuilder, extensionRegistry);
+              setBlock(subBuilder.buildPartial());
+              break;
+            }
+            case 16: {
+              bitField0_ |= 0x00000002;
+              recoveryId_ = input.readUInt64();
+              break;
+            }
+            case 24: {
+              bitField0_ |= 0x00000004;
+              newLength_ = input.readUInt64();
+              break;
+            }
+          }
+        }
+      }
+      
+      private int bitField0_;
+      
+      // required .ExtendedBlockProto block = 1;
+      private org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto block_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.getDefaultInstance();
+      private com.google.protobuf.SingleFieldBuilder<
+          org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.Builder, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProtoOrBuilder> blockBuilder_;
+      public boolean hasBlock() {
+        return ((bitField0_ & 0x00000001) == 0x00000001);
+      }
+      public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto getBlock() {
+        if (blockBuilder_ == null) {
+          return block_;
+        } else {
+          return blockBuilder_.getMessage();
+        }
+      }
+      public Builder setBlock(org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto value) {
+        if (blockBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          block_ = value;
+          onChanged();
+        } else {
+          blockBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000001;
+        return this;
+      }
+      public Builder setBlock(
+          org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.Builder builderForValue) {
+        if (blockBuilder_ == null) {
+          block_ = builderForValue.build();
+          onChanged();
+        } else {
+          blockBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000001;
+        return this;
+      }
+      public Builder mergeBlock(org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto value) {
+        if (blockBuilder_ == null) {
+          if (((bitField0_ & 0x00000001) == 0x00000001) &&
+              block_ != org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.getDefaultInstance()) {
+            block_ =
+              org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.newBuilder(block_).mergeFrom(value).buildPartial();
+          } else {
+            block_ = value;
+          }
+          onChanged();
+        } else {
+          blockBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000001;
+        return this;
+      }
+      public Builder clearBlock() {
+        if (blockBuilder_ == null) {
+          block_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.getDefaultInstance();
+          onChanged();
+        } else {
+          blockBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000001);
+        return this;
+      }
+      public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.Builder getBlockBuilder() {
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return getBlockFieldBuilder().getBuilder();
+      }
+      public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProtoOrBuilder getBlockOrBuilder() {
+        if (blockBuilder_ != null) {
+          return blockBuilder_.getMessageOrBuilder();
+        } else {
+          return block_;
+        }
+      }
+      private com.google.protobuf.SingleFieldBuilder<
+          org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.Builder, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProtoOrBuilder> 
+          getBlockFieldBuilder() {
+        if (blockBuilder_ == null) {
+          blockBuilder_ = new com.google.protobuf.SingleFieldBuilder<
+              org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.Builder, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProtoOrBuilder>(
+                  block_,
+                  getParentForChildren(),
+                  isClean());
+          block_ = null;
+        }
+        return blockBuilder_;
+      }
+      
+      // required uint64 recoveryId = 2;
+      private long recoveryId_ ;
+      public boolean hasRecoveryId() {
+        return ((bitField0_ & 0x00000002) == 0x00000002);
+      }
+      public long getRecoveryId() {
+        return recoveryId_;
+      }
+      public Builder setRecoveryId(long value) {
+        bitField0_ |= 0x00000002;
+        recoveryId_ = value;
+        onChanged();
+        return this;
+      }
+      public Builder clearRecoveryId() {
+        bitField0_ = (bitField0_ & ~0x00000002);
+        recoveryId_ = 0L;
+        onChanged();
+        return this;
+      }
+      
+      // required uint64 newLength = 3;
+      private long newLength_ ;
+      public boolean hasNewLength() {
+        return ((bitField0_ & 0x00000004) == 0x00000004);
+      }
+      public long getNewLength() {
+        return newLength_;
+      }
+      public Builder setNewLength(long value) {
+        bitField0_ |= 0x00000004;
+        newLength_ = value;
+        onChanged();
+        return this;
+      }
+      public Builder clearNewLength() {
+        bitField0_ = (bitField0_ & ~0x00000004);
+        newLength_ = 0L;
+        onChanged();
+        return this;
+      }
+      
+      // @@protoc_insertion_point(builder_scope:UpdateReplicaUnderRecoveryRequestProto)
+    }
+    
+    static {
+      defaultInstance = new UpdateReplicaUnderRecoveryRequestProto(true);
+      defaultInstance.initFields();
+    }
+    
+    // @@protoc_insertion_point(class_scope:UpdateReplicaUnderRecoveryRequestProto)
+  }
+  
+  public interface UpdateReplicaUnderRecoveryResponseProtoOrBuilder
+      extends com.google.protobuf.MessageOrBuilder {
+    
+    // required .ExtendedBlockProto block = 1;
+    boolean hasBlock();
+    org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto getBlock();
+    org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProtoOrBuilder getBlockOrBuilder();
+  }
+  public static final class UpdateReplicaUnderRecoveryResponseProto extends
+      com.google.protobuf.GeneratedMessage
+      implements UpdateReplicaUnderRecoveryResponseProtoOrBuilder {
+    // Use UpdateReplicaUnderRecoveryResponseProto.newBuilder() to construct.
+    private UpdateReplicaUnderRecoveryResponseProto(Builder builder) {
+      super(builder);
+    }
+    private UpdateReplicaUnderRecoveryResponseProto(boolean noInit) {}
+    
+    private static final UpdateReplicaUnderRecoveryResponseProto defaultInstance;
+    public static UpdateReplicaUnderRecoveryResponseProto getDefaultInstance() {
+      return defaultInstance;
+    }
+    
+    public UpdateReplicaUnderRecoveryResponseProto getDefaultInstanceForType() {
+      return defaultInstance;
+    }
+    
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.internal_static_UpdateReplicaUnderRecoveryResponseProto_descriptor;
+    }
+    
+    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.internal_static_UpdateReplicaUnderRecoveryResponseProto_fieldAccessorTable;
+    }
+    
+    private int bitField0_;
+    // required .ExtendedBlockProto block = 1;
+    public static final int BLOCK_FIELD_NUMBER = 1;
+    private org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto block_;
+    public boolean hasBlock() {
+      return ((bitField0_ & 0x00000001) == 0x00000001);
+    }
+    public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto getBlock() {
+      return block_;
+    }
+    public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProtoOrBuilder getBlockOrBuilder() {
+      return block_;
+    }
+    
+    private void initFields() {
+      block_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.getDefaultInstance();
+    }
+    private byte memoizedIsInitialized = -1;
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized != -1) return isInitialized == 1;
+      
+      if (!hasBlock()) {
+        memoizedIsInitialized = 0;
+        return false;
+      }
+      if (!getBlock().isInitialized()) {
+        memoizedIsInitialized = 0;
+        return false;
+      }
+      memoizedIsInitialized = 1;
+      return true;
+    }
+    
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      getSerializedSize();
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        output.writeMessage(1, block_);
+      }
+      getUnknownFields().writeTo(output);
+    }
+    
+    private int memoizedSerializedSize = -1;
+    public int getSerializedSize() {
+      int size = memoizedSerializedSize;
+      if (size != -1) return size;
+    
+      size = 0;
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(1, block_);
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSerializedSize = size;
+      return size;
+    }
+    
+    private static final long serialVersionUID = 0L;
+    @java.lang.Override
+    protected java.lang.Object writeReplace()
+        throws java.io.ObjectStreamException {
+      return super.writeReplace();
+    }
+    
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+       return true;
+      }
+      if (!(obj instanceof org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto)) {
+        return super.equals(obj);
+      }
+      org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto other = (org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto) obj;
+      
+      boolean result = true;
+      result = result && (hasBlock() == other.hasBlock());
+      if (hasBlock()) {
+        result = result && getBlock()
+            .equals(other.getBlock());
+      }
+      result = result &&
+          getUnknownFields().equals(other.getUnknownFields());
+      return result;
+    }
+    
+    @java.lang.Override
+    public int hashCode() {
+      int hash = 41;
+      hash = (19 * hash) + getDescriptorForType().hashCode();
+      if (hasBlock()) {
+        hash = (37 * hash) + BLOCK_FIELD_NUMBER;
+        hash = (53 * hash) + getBlock().hashCode();
+      }
+      hash = (29 * hash) + getUnknownFields().hashCode();
+      return hash;
+    }
+    
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data).buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data, extensionRegistry)
+               .buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data).buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data, extensionRegistry)
+               .buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input).buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input, extensionRegistry)
+               .buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      Builder builder = newBuilder();
+      if (builder.mergeDelimitedFrom(input)) {
+        return builder.buildParsed();
+      } else {
+        return null;
+      }
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      Builder builder = newBuilder();
+      if (builder.mergeDelimitedFrom(input, extensionRegistry)) {
+        return builder.buildParsed();
+      } else {
+        return null;
+      }
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input).buildParsed();
+    }
+    public static org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input, extensionRegistry)
+               .buildParsed();
+    }
+    
+    public static Builder newBuilder() { return Builder.create(); }
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder(org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto prototype) {
+      return newBuilder().mergeFrom(prototype);
+    }
+    public Builder toBuilder() { return newBuilder(this); }
+    
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessage.Builder<Builder>
+       implements org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProtoOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.internal_static_UpdateReplicaUnderRecoveryResponseProto_descriptor;
+      }
+      
+      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.internal_static_UpdateReplicaUnderRecoveryResponseProto_fieldAccessorTable;
+      }
+      
+      // Construct using org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+      
+      private Builder(BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
+          getBlockFieldBuilder();
+        }
+      }
+      private static Builder create() {
+        return new Builder();
+      }
+      
+      public Builder clear() {
+        super.clear();
+        if (blockBuilder_ == null) {
+          block_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.getDefaultInstance();
+        } else {
+          blockBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000001);
+        return this;
+      }
+      
+      public Builder clone() {
+        return create().mergeFrom(buildPartial());
+      }
+      
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto.getDescriptor();
+      }
+      
+      public org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto getDefaultInstanceForType() {
+        return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto.getDefaultInstance();
+      }
+      
+      public org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto build() {
+        org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+      
+      private org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto buildParsed()
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(
+            result).asInvalidProtocolBufferException();
+        }
+        return result;
+      }
+      
+      public org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto buildPartial() {
+        org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto result = new org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto(this);
+        int from_bitField0_ = bitField0_;
+        int to_bitField0_ = 0;
+        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
+          to_bitField0_ |= 0x00000001;
+        }
+        if (blockBuilder_ == null) {
+          result.block_ = block_;
+        } else {
+          result.block_ = blockBuilder_.build();
+        }
+        result.bitField0_ = to_bitField0_;
+        onBuilt();
+        return result;
+      }
+      
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto) {
+          return mergeFrom((org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+      
+      public Builder mergeFrom(org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto other) {
+        if (other == org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto.getDefaultInstance()) return this;
+        if (other.hasBlock()) {
+          mergeBlock(other.getBlock());
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        return this;
+      }
+      
+      public final boolean isInitialized() {
+        if (!hasBlock()) {
+          
+          return false;
+        }
+        if (!getBlock().isInitialized()) {
+          
+          return false;
+        }
+        return true;
+      }
+      
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder(
+            this.getUnknownFields());
+        while (true) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              this.setUnknownFields(unknownFields.build());
+              onChanged();
+              return this;
+            default: {
+              if (!parseUnknownField(input, unknownFields,
+                                     extensionRegistry, tag)) {
+                this.setUnknownFields(unknownFields.build());
+                onChanged();
+                return this;
+              }
+              break;
+            }
+            case 10: {
+              org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.Builder subBuilder = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.newBuilder();
+              if (hasBlock()) {
+                subBuilder.mergeFrom(getBlock());
+              }
+              input.readMessage(subBuilder, extensionRegistry);
+              setBlock(subBuilder.buildPartial());
+              break;
+            }
+          }
+        }
+      }
+      
+      private int bitField0_;
+      
+      // required .ExtendedBlockProto block = 1;
+      private org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto block_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.getDefaultInstance();
+      private com.google.protobuf.SingleFieldBuilder<
+          org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.Builder, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProtoOrBuilder> blockBuilder_;
+      public boolean hasBlock() {
+        return ((bitField0_ & 0x00000001) == 0x00000001);
+      }
+      public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto getBlock() {
+        if (blockBuilder_ == null) {
+          return block_;
+        } else {
+          return blockBuilder_.getMessage();
+        }
+      }
+      public Builder setBlock(org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto value) {
+        if (blockBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          block_ = value;
+          onChanged();
+        } else {
+          blockBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000001;
+        return this;
+      }
+      public Builder setBlock(
+          org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.Builder builderForValue) {
+        if (blockBuilder_ == null) {
+          block_ = builderForValue.build();
+          onChanged();
+        } else {
+          blockBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000001;
+        return this;
+      }
+      public Builder mergeBlock(org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto value) {
+        if (blockBuilder_ == null) {
+          if (((bitField0_ & 0x00000001) == 0x00000001) &&
+              block_ != org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.getDefaultInstance()) {
+            block_ =
+              org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.newBuilder(block_).mergeFrom(value).buildPartial();
+          } else {
+            block_ = value;
+          }
+          onChanged();
+        } else {
+          blockBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000001;
+        return this;
+      }
+      public Builder clearBlock() {
+        if (blockBuilder_ == null) {
+          block_ = org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.getDefaultInstance();
+          onChanged();
+        } else {
+          blockBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000001);
+        return this;
+      }
+      public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.Builder getBlockBuilder() {
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return getBlockFieldBuilder().getBuilder();
+      }
+      public org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProtoOrBuilder getBlockOrBuilder() {
+        if (blockBuilder_ != null) {
+          return blockBuilder_.getMessageOrBuilder();
+        } else {
+          return block_;
+        }
+      }
+      private com.google.protobuf.SingleFieldBuilder<
+          org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.Builder, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProtoOrBuilder> 
+          getBlockFieldBuilder() {
+        if (blockBuilder_ == null) {
+          blockBuilder_ = new com.google.protobuf.SingleFieldBuilder<
+              org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto.Builder, org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProtoOrBuilder>(
+                  block_,
+                  getParentForChildren(),
+                  isClean());
+          block_ = null;
+        }
+        return blockBuilder_;
+      }
+      
+      // @@protoc_insertion_point(builder_scope:UpdateReplicaUnderRecoveryResponseProto)
+    }
+    
+    static {
+      defaultInstance = new UpdateReplicaUnderRecoveryResponseProto(true);
+      defaultInstance.initFields();
+    }
+    
+    // @@protoc_insertion_point(class_scope:UpdateReplicaUnderRecoveryResponseProto)
+  }
+  
+  public static abstract class InterDatanodeProtocolService
+      implements com.google.protobuf.Service {
+    protected InterDatanodeProtocolService() {}
+    
+    public interface Interface {
+      public abstract void initReplicaRecovery(
+          com.google.protobuf.RpcController controller,
+          org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto request,
+          com.google.protobuf.RpcCallback<org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto> done);
+      
+      public abstract void updateReplicaUnderRecovery(
+          com.google.protobuf.RpcController controller,
+          org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto request,
+          com.google.protobuf.RpcCallback<org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto> done);
+      
+    }
+    
+    public static com.google.protobuf.Service newReflectiveService(
+        final Interface impl) {
+      return new InterDatanodeProtocolService() {
+        @java.lang.Override
+        public  void initReplicaRecovery(
+            com.google.protobuf.RpcController controller,
+            org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto request,
+            com.google.protobuf.RpcCallback<org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto> done) {
+          impl.initReplicaRecovery(controller, request, done);
+        }
+        
+        @java.lang.Override
+        public  void updateReplicaUnderRecovery(
+            com.google.protobuf.RpcController controller,
+            org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto request,
+            com.google.protobuf.RpcCallback<org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto> done) {
+          impl.updateReplicaUnderRecovery(controller, request, done);
+        }
+        
+      };
+    }
+    
+    public static com.google.protobuf.BlockingService
+        newReflectiveBlockingService(final BlockingInterface impl) {
+      return new com.google.protobuf.BlockingService() {
+        public final com.google.protobuf.Descriptors.ServiceDescriptor
+            getDescriptorForType() {
+          return getDescriptor();
+        }
+        
+        public final com.google.protobuf.Message callBlockingMethod(
+            com.google.protobuf.Descriptors.MethodDescriptor method,
+            com.google.protobuf.RpcController controller,
+            com.google.protobuf.Message request)
+            throws com.google.protobuf.ServiceException {
+          if (method.getService() != getDescriptor()) {
+            throw new java.lang.IllegalArgumentException(
+              "Service.callBlockingMethod() given method descriptor for " +
+              "wrong service type.");
+          }
+          switch(method.getIndex()) {
+            case 0:
+              return impl.initReplicaRecovery(controller, (org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto)request);
+            case 1:
+              return impl.updateReplicaUnderRecovery(controller, (org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto)request);
+            default:
+              throw new java.lang.AssertionError("Can't get here.");
+          }
+        }
+        
+        public final com.google.protobuf.Message
+            getRequestPrototype(
+            com.google.protobuf.Descriptors.MethodDescriptor method) {
+          if (method.getService() != getDescriptor()) {
+            throw new java.lang.IllegalArgumentException(
+              "Service.getRequestPrototype() given method " +
+              "descriptor for wrong service type.");
+          }
+          switch(method.getIndex()) {
+            case 0:
+              return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto.getDefaultInstance();
+            case 1:
+              return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto.getDefaultInstance();
+            default:
+              throw new java.lang.AssertionError("Can't get here.");
+          }
+        }
+        
+        public final com.google.protobuf.Message
+            getResponsePrototype(
+            com.google.protobuf.Descriptors.MethodDescriptor method) {
+          if (method.getService() != getDescriptor()) {
+            throw new java.lang.IllegalArgumentException(
+              "Service.getResponsePrototype() given method " +
+              "descriptor for wrong service type.");
+          }
+          switch(method.getIndex()) {
+            case 0:
+              return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto.getDefaultInstance();
+            case 1:
+              return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto.getDefaultInstance();
+            default:
+              throw new java.lang.AssertionError("Can't get here.");
+          }
+        }
+        
+      };
+    }
+    
+    public abstract void initReplicaRecovery(
+        com.google.protobuf.RpcController controller,
+        org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto request,
+        com.google.protobuf.RpcCallback<org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto> done);
+    
+    public abstract void updateReplicaUnderRecovery(
+        com.google.protobuf.RpcController controller,
+        org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto request,
+        com.google.protobuf.RpcCallback<org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto> done);
+    
+    public static final
+        com.google.protobuf.Descriptors.ServiceDescriptor
+        getDescriptor() {
+      return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.getDescriptor().getServices().get(0);
+    }
+    public final com.google.protobuf.Descriptors.ServiceDescriptor
+        getDescriptorForType() {
+      return getDescriptor();
+    }
+    
+    public final void callMethod(
+        com.google.protobuf.Descriptors.MethodDescriptor method,
+        com.google.protobuf.RpcController controller,
+        com.google.protobuf.Message request,
+        com.google.protobuf.RpcCallback<
+          com.google.protobuf.Message> done) {
+      if (method.getService() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException(
+          "Service.callMethod() given method descriptor for wrong " +
+          "service type.");
+      }
+      switch(method.getIndex()) {
+        case 0:
+          this.initReplicaRecovery(controller, (org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto)request,
+            com.google.protobuf.RpcUtil.<org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto>specializeCallback(
+              done));
+          return;
+        case 1:
+          this.updateReplicaUnderRecovery(controller, (org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto)request,
+            com.google.protobuf.RpcUtil.<org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto>specializeCallback(
+              done));
+          return;
+        default:
+          throw new java.lang.AssertionError("Can't get here.");
+      }
+    }
+    
+    public final com.google.protobuf.Message
+        getRequestPrototype(
+        com.google.protobuf.Descriptors.MethodDescriptor method) {
+      if (method.getService() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException(
+          "Service.getRequestPrototype() given method " +
+          "descriptor for wrong service type.");
+      }
+      switch(method.getIndex()) {
+        case 0:
+          return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto.getDefaultInstance();
+        case 1:
+          return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto.getDefaultInstance();
+        default:
+          throw new java.lang.AssertionError("Can't get here.");
+      }
+    }
+    
+    public final com.google.protobuf.Message
+        getResponsePrototype(
+        com.google.protobuf.Descriptors.MethodDescriptor method) {
+      if (method.getService() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException(
+          "Service.getResponsePrototype() given method " +
+          "descriptor for wrong service type.");
+      }
+      switch(method.getIndex()) {
+        case 0:
+          return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto.getDefaultInstance();
+        case 1:
+          return org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto.getDefaultInstance();
+        default:
+          throw new java.lang.AssertionError("Can't get here.");
+      }
+    }
+    
+    public static Stub newStub(
+        com.google.protobuf.RpcChannel channel) {
+      return new Stub(channel);
+    }
+    
+    public static final class Stub extends org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InterDatanodeProtocolService implements Interface {
+      private Stub(com.google.protobuf.RpcChannel channel) {
+        this.channel = channel;
+      }
+      
+      private final com.google.protobuf.RpcChannel channel;
+      
+      public com.google.protobuf.RpcChannel getChannel() {
+        return channel;
+      }
+      
+      public  void initReplicaRecovery(
+          com.google.protobuf.RpcController controller,
+          org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto request,
+          com.google.protobuf.RpcCallback<org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto> done) {
+        channel.callMethod(
+          getDescriptor().getMethods().get(0),
+          controller,
+          request,
+          org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto.getDefaultInstance(),
+          com.google.protobuf.RpcUtil.generalizeCallback(
+            done,
+            org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto.class,
+            org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto.getDefaultInstance()));
+      }
+      
+      public  void updateReplicaUnderRecovery(
+          com.google.protobuf.RpcController controller,
+          org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto request,
+          com.google.protobuf.RpcCallback<org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto> done) {
+        channel.callMethod(
+          getDescriptor().getMethods().get(1),
+          controller,
+          request,
+          org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto.getDefaultInstance(),
+          com.google.protobuf.RpcUtil.generalizeCallback(
+            done,
+            org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto.class,
+            org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto.getDefaultInstance()));
+      }
+    }
+    
+    public static BlockingInterface newBlockingStub(
+        com.google.protobuf.BlockingRpcChannel channel) {
+      return new BlockingStub(channel);
+    }
+    
+    public interface BlockingInterface {
+      public org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto initReplicaRecovery(
+          com.google.protobuf.RpcController controller,
+          org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto request)
+          throws com.google.protobuf.ServiceException;
+      
+      public org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto updateReplicaUnderRecovery(
+          com.google.protobuf.RpcController controller,
+          org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto request)
+          throws com.google.protobuf.ServiceException;
+    }
+    
+    private static final class BlockingStub implements BlockingInterface {
+      private BlockingStub(com.google.protobuf.BlockingRpcChannel channel) {
+        this.channel = channel;
+      }
+      
+      private final com.google.protobuf.BlockingRpcChannel channel;
+      
+      public org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto initReplicaRecovery(
+          com.google.protobuf.RpcController controller,
+          org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto request)
+          throws com.google.protobuf.ServiceException {
+        return (org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto) channel.callBlockingMethod(
+          getDescriptor().getMethods().get(0),
+          controller,
+          request,
+          org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto.getDefaultInstance());
+      }
+      
+      
+      public org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto updateReplicaUnderRecovery(
+          com.google.protobuf.RpcController controller,
+          org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto request)
+          throws com.google.protobuf.ServiceException {
+        return (org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto) channel.callBlockingMethod(
+          getDescriptor().getMethods().get(1),
+          controller,
+          request,
+          org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto.getDefaultInstance());
+      }
+      
+    }
+  }
+  
+  private static com.google.protobuf.Descriptors.Descriptor
+    internal_static_InitReplicaRecoveryRequestProto_descriptor;
+  private static
+    com.google.protobuf.GeneratedMessage.FieldAccessorTable
+      internal_static_InitReplicaRecoveryRequestProto_fieldAccessorTable;
+  private static com.google.protobuf.Descriptors.Descriptor
+    internal_static_InitReplicaRecoveryResponseProto_descriptor;
+  private static
+    com.google.protobuf.GeneratedMessage.FieldAccessorTable
+      internal_static_InitReplicaRecoveryResponseProto_fieldAccessorTable;
+  private static com.google.protobuf.Descriptors.Descriptor
+    internal_static_UpdateReplicaUnderRecoveryRequestProto_descriptor;
+  private static
+    com.google.protobuf.GeneratedMessage.FieldAccessorTable
+      internal_static_UpdateReplicaUnderRecoveryRequestProto_fieldAccessorTable;
+  private static com.google.protobuf.Descriptors.Descriptor
+    internal_static_UpdateReplicaUnderRecoveryResponseProto_descriptor;
+  private static
+    com.google.protobuf.GeneratedMessage.FieldAccessorTable
+      internal_static_UpdateReplicaUnderRecoveryResponseProto_fieldAccessorTable;
+  
+  public static com.google.protobuf.Descriptors.FileDescriptor
+      getDescriptor() {
+    return descriptor;
+  }
+  private static com.google.protobuf.Descriptors.FileDescriptor
+      descriptor;
+  static {
+    java.lang.String[] descriptorData = {
+      "\n\033InterDatanodeProtocol.proto\032\nhdfs.prot" +
+      "o\"G\n\037InitReplicaRecoveryRequestProto\022$\n\005" +
+      "block\030\001 \002(\0132\025.RecoveringBlockProto\"\\\n In" +
+      "itReplicaRecoveryResponseProto\022\034\n\005state\030" +
+      "\001 \002(\0162\r.ReplicaState\022\032\n\005block\030\002 \002(\0132\013.Bl" +
+      "ockProto\"s\n&UpdateReplicaUnderRecoveryRe" +
+      "questProto\022\"\n\005block\030\001 \002(\0132\023.ExtendedBloc" +
+      "kProto\022\022\n\nrecoveryId\030\002 \002(\004\022\021\n\tnewLength\030" +
+      "\003 \002(\004\"M\n\'UpdateReplicaUnderRecoveryRespo" +
+      "nseProto\022\"\n\005block\030\001 \002(\0132\023.ExtendedBlockP",
+      "roto2\353\001\n\034InterDatanodeProtocolService\022Z\n" +
+      "\023initReplicaRecovery\022 .InitReplicaRecove" +
+      "ryRequestProto\032!.InitReplicaRecoveryResp" +
+      "onseProto\022o\n\032updateReplicaUnderRecovery\022" +
+      "\'.UpdateReplicaUnderRecoveryRequestProto" +
+      "\032(.UpdateReplicaUnderRecoveryResponsePro" +
+      "toBJ\n%org.apache.hadoop.hdfs.protocol.pr" +
+      "otoB\033InterDatanodeProtocolProtos\210\001\001\240\001\001"
+    };
+    com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
+      new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
+        public com.google.protobuf.ExtensionRegistry assignDescriptors(
+            com.google.protobuf.Descriptors.FileDescriptor root) {
+          descriptor = root;
+          internal_static_InitReplicaRecoveryRequestProto_descriptor =
+            getDescriptor().getMessageTypes().get(0);
+          internal_static_InitReplicaRecoveryRequestProto_fieldAccessorTable = new
+            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
+              internal_static_InitReplicaRecoveryRequestProto_descriptor,
+              new java.lang.String[] { "Block", },
+              org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto.class,
+              org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryRequestProto.Builder.class);
+          internal_static_InitReplicaRecoveryResponseProto_descriptor =
+            getDescriptor().getMessageTypes().get(1);
+          internal_static_InitReplicaRecoveryResponseProto_fieldAccessorTable = new
+            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
+              internal_static_InitReplicaRecoveryResponseProto_descriptor,
+              new java.lang.String[] { "State", "Block", },
+              org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto.class,
+              org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.InitReplicaRecoveryResponseProto.Builder.class);
+          internal_static_UpdateReplicaUnderRecoveryRequestProto_descriptor =
+            getDescriptor().getMessageTypes().get(2);
+          internal_static_UpdateReplicaUnderRecoveryRequestProto_fieldAccessorTable = new
+            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
+              internal_static_UpdateReplicaUnderRecoveryRequestProto_descriptor,
+              new java.lang.String[] { "Block", "RecoveryId", "NewLength", },
+              org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto.class,
+              org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryRequestProto.Builder.class);
+          internal_static_UpdateReplicaUnderRecoveryResponseProto_descriptor =
+            getDescriptor().getMessageTypes().get(3);
+          internal_static_UpdateReplicaUnderRecoveryResponseProto_fieldAccessorTable = new
+            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
+              internal_static_UpdateReplicaUnderRecoveryResponseProto_descriptor,
+              new java.lang.String[] { "Block", },
+              org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto.class,
+              org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos.UpdateReplicaUnderRecoveryResponseProto.Builder.class);
+          return null;
+        }
+      };
+    com.google.protobuf.Descriptors.FileDescriptor
+      .internalBuildGeneratedFileFrom(descriptorData,
+        new com.google.protobuf.Descriptors.FileDescriptor[] {
+          org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.getDescriptor(),
+        }, assigner);
+  }
+  
+  // @@protoc_insertion_point(outer_class_scope)
+}

hadoop-hdfs-project/hadoop-hdfs/src/proto/InterDatanodeProtocol.proto

@@ -0,0 +1,78 @@
+/**
+ * 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.
+ */
+
+// This file contains protocol buffers that are used throughout HDFS -- i.e.
+// by the client, server, and data transfer protocols.
+
+option java_package = "org.apache.hadoop.hdfs.protocol.proto";
+option java_outer_classname = "InterDatanodeProtocolProtos";
+option java_generic_services = true;
+option java_generate_equals_and_hash = true;
+
+import "hdfs.proto";
+
+/**
+ * Block with location information and new generation stamp
+ * to be used for recovery.
+ */
+message InitReplicaRecoveryRequestProto {
+  required RecoveringBlockProto block = 1;
+}
+
+/**
+ * Repica recovery information
+ */
+message InitReplicaRecoveryResponseProto {
+  required ReplicaState state = 1; // State fo the replica
+  required BlockProto block = 2;   // block information
+}
+
+/**
+ * Update replica with new generation stamp and length
+ */
+message UpdateReplicaUnderRecoveryRequestProto {
+  required ExtendedBlockProto block = 1; // Block identifier
+  required uint64 recoveryId = 2;        // New genstamp of the replica
+  required uint64 newLength = 3;         // New length of the replica
+}
+
+/**
+ * Response returns updated block information
+ */
+message UpdateReplicaUnderRecoveryResponseProto {
+  required ExtendedBlockProto block = 1; // Updated block information
+}
+
+/**
+ * Protocol used between datanodes for block recovery.
+ *
+ * See the request and response for details of rpc call.
+ */
+service InterDatanodeProtocolService {
+  /**
+   * Initialize recovery of a replica
+   */
+  rpc initReplicaRecovery(InitReplicaRecoveryRequestProto)
+      returns(InitReplicaRecoveryResponseProto);
+
+  /**
+   * Update a replica with new generation stamp and length
+   */
+  rpc updateReplicaUnderRecovery(UpdateReplicaUnderRecoveryRequestProto)
+      returns(UpdateReplicaUnderRecoveryResponseProto);
+}