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Posted to commits@hbase.apache.org by st...@apache.org on 2017/05/25 06:32:26 UTC

[22/27] hbase git commit: Revert "HBASE-14614 Procedure v2 - Core Assignment Manager (Matteo Bertozzi)" Revert a mistaken commit!!!

http://git-wip-us.apache.org/repos/asf/hbase/blob/a3c5a744/hbase-protocol-shaded/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/generated/MasterProtos.java
----------------------------------------------------------------------
diff --git a/hbase-protocol-shaded/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/generated/MasterProtos.java b/hbase-protocol-shaded/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/generated/MasterProtos.java
index 5ea2044..798932e 100644
--- a/hbase-protocol-shaded/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/generated/MasterProtos.java
+++ b/hbase-protocol-shaded/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/generated/MasterProtos.java
@@ -842,7 +842,7 @@ public final class MasterProtos {
        * <code>required .hbase.pb.TableName table_name = 1;</code>
        */
       private org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
-          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.TableName, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.TableName.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.TableNameOrBuilder> 
+          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.TableName, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.TableName.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.TableNameOrBuilder>
           getTableNameFieldBuilder() {
         if (tableNameBuilder_ == null) {
           tableNameBuilder_ = new org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
@@ -960,7 +960,7 @@ public final class MasterProtos {
        * <code>required .hbase.pb.ColumnFamilySchema column_families = 2;</code>
        */
       private org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
-          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ColumnFamilySchema, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ColumnFamilySchema.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ColumnFamilySchemaOrBuilder> 
+          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ColumnFamilySchema, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ColumnFamilySchema.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ColumnFamilySchemaOrBuilder>
           getColumnFamiliesFieldBuilder() {
         if (columnFamiliesBuilder_ == null) {
           columnFamiliesBuilder_ = new org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
@@ -2257,7 +2257,7 @@ public final class MasterProtos {
        * <code>required .hbase.pb.TableName table_name = 1;</code>
        */
       private org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
-          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.TableName, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.TableName.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.TableNameOrBuilder> 
+          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.TableName, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.TableName.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.TableNameOrBuilder>
           getTableNameFieldBuilder() {
         if (tableNameBuilder_ == null) {
           tableNameBuilder_ = new org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
@@ -3622,7 +3622,7 @@ public final class MasterProtos {
        * <code>required .hbase.pb.TableName table_name = 1;</code>
        */
       private org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
-          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.TableName, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.TableName.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.TableNameOrBuilder> 
+          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.TableName, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.TableName.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.TableNameOrBuilder>
           getTableNameFieldBuilder() {
         if (tableNameBuilder_ == null) {
           tableNameBuilder_ = new org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
@@ -3740,7 +3740,7 @@ public final class MasterProtos {
        * <code>required .hbase.pb.ColumnFamilySchema column_families = 2;</code>
        */
       private org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
-          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ColumnFamilySchema, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ColumnFamilySchema.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ColumnFamilySchemaOrBuilder> 
+          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ColumnFamilySchema, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ColumnFamilySchema.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ColumnFamilySchemaOrBuilder>
           getColumnFamiliesFieldBuilder() {
         if (columnFamiliesBuilder_ == null) {
           columnFamiliesBuilder_ = new org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
@@ -4955,7 +4955,7 @@ public final class MasterProtos {
        * <code>required .hbase.pb.RegionSpecifier region = 1;</code>
        */
       private org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
-          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder> 
+          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder>
           getRegionFieldBuilder() {
         if (regionBuilder_ == null) {
           regionBuilder_ = new org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
@@ -5073,7 +5073,7 @@ public final class MasterProtos {
        * <code>optional .hbase.pb.ServerName dest_server_name = 2;</code>
        */
       private org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
-          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ServerName, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ServerName.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ServerNameOrBuilder> 
+          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ServerName, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ServerName.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ServerNameOrBuilder>
           getDestServerNameFieldBuilder() {
         if (destServerNameBuilder_ == null) {
           destServerNameBuilder_ = new org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
@@ -5507,35 +5507,33 @@ public final class MasterProtos {
 
   }
 
-  public interface DispatchMergingRegionsRequestOrBuilder extends
-      // @@protoc_insertion_point(interface_extends:hbase.pb.DispatchMergingRegionsRequest)
+  public interface MergeTableRegionsRequestOrBuilder extends
+      // @@protoc_insertion_point(interface_extends:hbase.pb.MergeTableRegionsRequest)
       org.apache.hadoop.hbase.shaded.com.google.protobuf.MessageOrBuilder {
 
     /**
-     * <code>required .hbase.pb.RegionSpecifier region_a = 1;</code>
-     */
-    boolean hasRegionA();
-    /**
-     * <code>required .hbase.pb.RegionSpecifier region_a = 1;</code>
+     * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
      */
-    org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier getRegionA();
+    java.util.List<org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier>
+        getRegionList();
     /**
-     * <code>required .hbase.pb.RegionSpecifier region_a = 1;</code>
+     * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
      */
-    org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder getRegionAOrBuilder();
-
+    org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier getRegion(int index);
     /**
-     * <code>required .hbase.pb.RegionSpecifier region_b = 2;</code>
+     * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
      */
-    boolean hasRegionB();
+    int getRegionCount();
     /**
-     * <code>required .hbase.pb.RegionSpecifier region_b = 2;</code>
+     * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
      */
-    org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier getRegionB();
+    java.util.List<? extends org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder>
+        getRegionOrBuilderList();
     /**
-     * <code>required .hbase.pb.RegionSpecifier region_b = 2;</code>
+     * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
      */
-    org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder getRegionBOrBuilder();
+    org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder getRegionOrBuilder(
+        int index);
 
     /**
      * <code>optional bool forcible = 3 [default = false];</code>
@@ -5567,20 +5565,21 @@ public final class MasterProtos {
   /**
    * <pre>
    **
-   * Dispatch merging the specified regions.
+   * Merging the specified regions in a table.
    * </pre>
    *
-   * Protobuf type {@code hbase.pb.DispatchMergingRegionsRequest}
+   * Protobuf type {@code hbase.pb.MergeTableRegionsRequest}
    */
-  public  static final class DispatchMergingRegionsRequest extends
+  public  static final class MergeTableRegionsRequest extends
       org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3 implements
-      // @@protoc_insertion_point(message_implements:hbase.pb.DispatchMergingRegionsRequest)
-      DispatchMergingRegionsRequestOrBuilder {
-    // Use DispatchMergingRegionsRequest.newBuilder() to construct.
-    private DispatchMergingRegionsRequest(org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      // @@protoc_insertion_point(message_implements:hbase.pb.MergeTableRegionsRequest)
+      MergeTableRegionsRequestOrBuilder {
+    // Use MergeTableRegionsRequest.newBuilder() to construct.
+    private MergeTableRegionsRequest(org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
       super(builder);
     }
-    private DispatchMergingRegionsRequest() {
+    private MergeTableRegionsRequest() {
+      region_ = java.util.Collections.emptyList();
       forcible_ = false;
       nonceGroup_ = 0L;
       nonce_ = 0L;
@@ -5591,7 +5590,7 @@ public final class MasterProtos {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private DispatchMergingRegionsRequest(
+    private MergeTableRegionsRequest(
         org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream input,
         org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException {
@@ -5615,43 +5614,26 @@ public final class MasterProtos {
               break;
             }
             case 10: {
-              org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder subBuilder = null;
-              if (((bitField0_ & 0x00000001) == 0x00000001)) {
-                subBuilder = regionA_.toBuilder();
-              }
-              regionA_ = input.readMessage(org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.PARSER, extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(regionA_);
-                regionA_ = subBuilder.buildPartial();
-              }
-              bitField0_ |= 0x00000001;
-              break;
-            }
-            case 18: {
-              org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder subBuilder = null;
-              if (((bitField0_ & 0x00000002) == 0x00000002)) {
-                subBuilder = regionB_.toBuilder();
-              }
-              regionB_ = input.readMessage(org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.PARSER, extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(regionB_);
-                regionB_ = subBuilder.buildPartial();
+              if (!((mutable_bitField0_ & 0x00000001) == 0x00000001)) {
+                region_ = new java.util.ArrayList<org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier>();
+                mutable_bitField0_ |= 0x00000001;
               }
-              bitField0_ |= 0x00000002;
+              region_.add(
+                  input.readMessage(org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.PARSER, extensionRegistry));
               break;
             }
             case 24: {
-              bitField0_ |= 0x00000004;
+              bitField0_ |= 0x00000001;
               forcible_ = input.readBool();
               break;
             }
             case 32: {
-              bitField0_ |= 0x00000008;
+              bitField0_ |= 0x00000002;
               nonceGroup_ = input.readUInt64();
               break;
             }
             case 40: {
-              bitField0_ |= 0x00000010;
+              bitField0_ |= 0x00000004;
               nonce_ = input.readUInt64();
               break;
             }
@@ -5663,63 +5645,59 @@ public final class MasterProtos {
         throw new org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException(
             e).setUnfinishedMessage(this);
       } finally {
+        if (((mutable_bitField0_ & 0x00000001) == 0x00000001)) {
+          region_ = java.util.Collections.unmodifiableList(region_);
+        }
         this.unknownFields = unknownFields.build();
         makeExtensionsImmutable();
       }
     }
     public static final org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
-      return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_DispatchMergingRegionsRequest_descriptor;
+      return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_MergeTableRegionsRequest_descriptor;
     }
 
     protected org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
         internalGetFieldAccessorTable() {
-      return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_DispatchMergingRegionsRequest_fieldAccessorTable
+      return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_MergeTableRegionsRequest_fieldAccessorTable
           .ensureFieldAccessorsInitialized(
-              org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest.class, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest.Builder.class);
+              org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest.class, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest.Builder.class);
     }
 
     private int bitField0_;
-    public static final int REGION_A_FIELD_NUMBER = 1;
-    private org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier regionA_;
-    /**
-     * <code>required .hbase.pb.RegionSpecifier region_a = 1;</code>
-     */
-    public boolean hasRegionA() {
-      return ((bitField0_ & 0x00000001) == 0x00000001);
-    }
+    public static final int REGION_FIELD_NUMBER = 1;
+    private java.util.List<org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier> region_;
     /**
-     * <code>required .hbase.pb.RegionSpecifier region_a = 1;</code>
+     * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
      */
-    public org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier getRegionA() {
-      return regionA_ == null ? org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.getDefaultInstance() : regionA_;
+    public java.util.List<org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier> getRegionList() {
+      return region_;
     }
     /**
-     * <code>required .hbase.pb.RegionSpecifier region_a = 1;</code>
+     * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
      */
-    public org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder getRegionAOrBuilder() {
-      return regionA_ == null ? org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.getDefaultInstance() : regionA_;
+    public java.util.List<? extends org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder>
+        getRegionOrBuilderList() {
+      return region_;
     }
-
-    public static final int REGION_B_FIELD_NUMBER = 2;
-    private org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier regionB_;
     /**
-     * <code>required .hbase.pb.RegionSpecifier region_b = 2;</code>
+     * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
      */
-    public boolean hasRegionB() {
-      return ((bitField0_ & 0x00000002) == 0x00000002);
+    public int getRegionCount() {
+      return region_.size();
     }
     /**
-     * <code>required .hbase.pb.RegionSpecifier region_b = 2;</code>
+     * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
      */
-    public org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier getRegionB() {
-      return regionB_ == null ? org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.getDefaultInstance() : regionB_;
+    public org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier getRegion(int index) {
+      return region_.get(index);
     }
     /**
-     * <code>required .hbase.pb.RegionSpecifier region_b = 2;</code>
+     * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
      */
-    public org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder getRegionBOrBuilder() {
-      return regionB_ == null ? org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.getDefaultInstance() : regionB_;
+    public org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder getRegionOrBuilder(
+        int index) {
+      return region_.get(index);
     }
 
     public static final int FORCIBLE_FIELD_NUMBER = 3;
@@ -5728,7 +5706,7 @@ public final class MasterProtos {
      * <code>optional bool forcible = 3 [default = false];</code>
      */
     public boolean hasForcible() {
-      return ((bitField0_ & 0x00000004) == 0x00000004);
+      return ((bitField0_ & 0x00000001) == 0x00000001);
     }
     /**
      * <code>optional bool forcible = 3 [default = false];</code>
@@ -5743,7 +5721,7 @@ public final class MasterProtos {
      * <code>optional uint64 nonce_group = 4 [default = 0];</code>
      */
     public boolean hasNonceGroup() {
-      return ((bitField0_ & 0x00000008) == 0x00000008);
+      return ((bitField0_ & 0x00000002) == 0x00000002);
     }
     /**
      * <code>optional uint64 nonce_group = 4 [default = 0];</code>
@@ -5758,7 +5736,7 @@ public final class MasterProtos {
      * <code>optional uint64 nonce = 5 [default = 0];</code>
      */
     public boolean hasNonce() {
-      return ((bitField0_ & 0x00000010) == 0x00000010);
+      return ((bitField0_ & 0x00000004) == 0x00000004);
     }
     /**
      * <code>optional uint64 nonce = 5 [default = 0];</code>
@@ -5773,21 +5751,11 @@ public final class MasterProtos {
       if (isInitialized == 1) return true;
       if (isInitialized == 0) return false;
 
-      if (!hasRegionA()) {
-        memoizedIsInitialized = 0;
-        return false;
-      }
-      if (!hasRegionB()) {
-        memoizedIsInitialized = 0;
-        return false;
-      }
-      if (!getRegionA().isInitialized()) {
-        memoizedIsInitialized = 0;
-        return false;
-      }
-      if (!getRegionB().isInitialized()) {
-        memoizedIsInitialized = 0;
-        return false;
+      for (int i = 0; i < getRegionCount(); i++) {
+        if (!getRegion(i).isInitialized()) {
+          memoizedIsInitialized = 0;
+          return false;
+        }
       }
       memoizedIsInitialized = 1;
       return true;
@@ -5795,19 +5763,16 @@ public final class MasterProtos {
 
     public void writeTo(org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
-      if (((bitField0_ & 0x00000001) == 0x00000001)) {
-        output.writeMessage(1, getRegionA());
-      }
-      if (((bitField0_ & 0x00000002) == 0x00000002)) {
-        output.writeMessage(2, getRegionB());
+      for (int i = 0; i < region_.size(); i++) {
+        output.writeMessage(1, region_.get(i));
       }
-      if (((bitField0_ & 0x00000004) == 0x00000004)) {
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
         output.writeBool(3, forcible_);
       }
-      if (((bitField0_ & 0x00000008) == 0x00000008)) {
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
         output.writeUInt64(4, nonceGroup_);
       }
-      if (((bitField0_ & 0x00000010) == 0x00000010)) {
+      if (((bitField0_ & 0x00000004) == 0x00000004)) {
         output.writeUInt64(5, nonce_);
       }
       unknownFields.writeTo(output);
@@ -5818,23 +5783,19 @@ public final class MasterProtos {
       if (size != -1) return size;
 
       size = 0;
-      if (((bitField0_ & 0x00000001) == 0x00000001)) {
-        size += org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedOutputStream
-          .computeMessageSize(1, getRegionA());
-      }
-      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+      for (int i = 0; i < region_.size(); i++) {
         size += org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedOutputStream
-          .computeMessageSize(2, getRegionB());
+          .computeMessageSize(1, region_.get(i));
       }
-      if (((bitField0_ & 0x00000004) == 0x00000004)) {
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
         size += org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedOutputStream
           .computeBoolSize(3, forcible_);
       }
-      if (((bitField0_ & 0x00000008) == 0x00000008)) {
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
         size += org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedOutputStream
           .computeUInt64Size(4, nonceGroup_);
       }
-      if (((bitField0_ & 0x00000010) == 0x00000010)) {
+      if (((bitField0_ & 0x00000004) == 0x00000004)) {
         size += org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedOutputStream
           .computeUInt64Size(5, nonce_);
       }
@@ -5849,22 +5810,14 @@ public final class MasterProtos {
       if (obj == this) {
        return true;
       }
-      if (!(obj instanceof org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest)) {
+      if (!(obj instanceof org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest)) {
         return super.equals(obj);
       }
-      org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest other = (org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest) obj;
+      org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest other = (org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest) obj;
 
       boolean result = true;
-      result = result && (hasRegionA() == other.hasRegionA());
-      if (hasRegionA()) {
-        result = result && getRegionA()
-            .equals(other.getRegionA());
-      }
-      result = result && (hasRegionB() == other.hasRegionB());
-      if (hasRegionB()) {
-        result = result && getRegionB()
-            .equals(other.getRegionB());
-      }
+      result = result && getRegionList()
+          .equals(other.getRegionList());
       result = result && (hasForcible() == other.hasForcible());
       if (hasForcible()) {
         result = result && (getForcible()
@@ -5891,13 +5844,9 @@ public final class MasterProtos {
       }
       int hash = 41;
       hash = (19 * hash) + getDescriptor().hashCode();
-      if (hasRegionA()) {
-        hash = (37 * hash) + REGION_A_FIELD_NUMBER;
-        hash = (53 * hash) + getRegionA().hashCode();
-      }
-      if (hasRegionB()) {
-        hash = (37 * hash) + REGION_B_FIELD_NUMBER;
-        hash = (53 * hash) + getRegionB().hashCode();
+      if (getRegionCount() > 0) {
+        hash = (37 * hash) + REGION_FIELD_NUMBER;
+        hash = (53 * hash) + getRegionList().hashCode();
       }
       if (hasForcible()) {
         hash = (37 * hash) + FORCIBLE_FIELD_NUMBER;
@@ -5919,58 +5868,58 @@ public final class MasterProtos {
       return hash;
     }
 
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest parseFrom(
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest parseFrom(
         org.apache.hadoop.hbase.shaded.com.google.protobuf.ByteString data)
         throws org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest parseFrom(
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest parseFrom(
         org.apache.hadoop.hbase.shaded.com.google.protobuf.ByteString data,
         org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest parseFrom(byte[] data)
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest parseFrom(byte[] data)
         throws org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest parseFrom(
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest parseFrom(
         byte[] data,
         org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest parseFrom(java.io.InputStream input)
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest parseFrom(java.io.InputStream input)
         throws java.io.IOException {
       return org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
           .parseWithIOException(PARSER, input);
     }
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest parseFrom(
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest parseFrom(
         java.io.InputStream input,
         org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
       return org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
           .parseWithIOException(PARSER, input, extensionRegistry);
     }
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest parseDelimitedFrom(java.io.InputStream input)
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest parseDelimitedFrom(java.io.InputStream input)
         throws java.io.IOException {
       return org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
           .parseDelimitedWithIOException(PARSER, input);
     }
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest parseDelimitedFrom(
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest parseDelimitedFrom(
         java.io.InputStream input,
         org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
       return org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
           .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
     }
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest parseFrom(
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest parseFrom(
         org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream input)
         throws java.io.IOException {
       return org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
           .parseWithIOException(PARSER, input);
     }
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest parseFrom(
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest parseFrom(
         org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream input,
         org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
@@ -5982,7 +5931,7 @@ public final class MasterProtos {
     public static Builder newBuilder() {
       return DEFAULT_INSTANCE.toBuilder();
     }
-    public static Builder newBuilder(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest prototype) {
+    public static Builder newBuilder(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest prototype) {
       return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
     }
     public Builder toBuilder() {
@@ -5999,28 +5948,28 @@ public final class MasterProtos {
     /**
      * <pre>
      **
-     * Dispatch merging the specified regions.
+     * Merging the specified regions in a table.
      * </pre>
      *
-     * Protobuf type {@code hbase.pb.DispatchMergingRegionsRequest}
+     * Protobuf type {@code hbase.pb.MergeTableRegionsRequest}
      */
     public static final class Builder extends
         org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
-        // @@protoc_insertion_point(builder_implements:hbase.pb.DispatchMergingRegionsRequest)
-        org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequestOrBuilder {
+        // @@protoc_insertion_point(builder_implements:hbase.pb.MergeTableRegionsRequest)
+        org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequestOrBuilder {
       public static final org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.Descriptor
           getDescriptor() {
-        return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_DispatchMergingRegionsRequest_descriptor;
+        return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_MergeTableRegionsRequest_descriptor;
       }
 
       protected org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
           internalGetFieldAccessorTable() {
-        return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_DispatchMergingRegionsRequest_fieldAccessorTable
+        return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_MergeTableRegionsRequest_fieldAccessorTable
             .ensureFieldAccessorsInitialized(
-                org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest.class, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest.Builder.class);
+                org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest.class, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest.Builder.class);
       }
 
-      // Construct using org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest.newBuilder()
+      // Construct using org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest.newBuilder()
       private Builder() {
         maybeForceBuilderInitialization();
       }
@@ -6033,80 +5982,66 @@ public final class MasterProtos {
       private void maybeForceBuilderInitialization() {
         if (org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
                 .alwaysUseFieldBuilders) {
-          getRegionAFieldBuilder();
-          getRegionBFieldBuilder();
+          getRegionFieldBuilder();
         }
       }
       public Builder clear() {
         super.clear();
-        if (regionABuilder_ == null) {
-          regionA_ = null;
-        } else {
-          regionABuilder_.clear();
-        }
-        bitField0_ = (bitField0_ & ~0x00000001);
-        if (regionBBuilder_ == null) {
-          regionB_ = null;
+        if (regionBuilder_ == null) {
+          region_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000001);
         } else {
-          regionBBuilder_.clear();
+          regionBuilder_.clear();
         }
-        bitField0_ = (bitField0_ & ~0x00000002);
         forcible_ = false;
-        bitField0_ = (bitField0_ & ~0x00000004);
+        bitField0_ = (bitField0_ & ~0x00000002);
         nonceGroup_ = 0L;
-        bitField0_ = (bitField0_ & ~0x00000008);
+        bitField0_ = (bitField0_ & ~0x00000004);
         nonce_ = 0L;
-        bitField0_ = (bitField0_ & ~0x00000010);
+        bitField0_ = (bitField0_ & ~0x00000008);
         return this;
       }
 
       public org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.Descriptor
           getDescriptorForType() {
-        return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_DispatchMergingRegionsRequest_descriptor;
+        return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_MergeTableRegionsRequest_descriptor;
       }
 
-      public org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest getDefaultInstanceForType() {
-        return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest.getDefaultInstance();
+      public org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest getDefaultInstanceForType() {
+        return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest.getDefaultInstance();
       }
 
-      public org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest build() {
-        org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest result = buildPartial();
+      public org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest build() {
+        org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest result = buildPartial();
         if (!result.isInitialized()) {
           throw newUninitializedMessageException(result);
         }
         return result;
       }
 
-      public org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest buildPartial() {
-        org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest result = new org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest(this);
+      public org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest buildPartial() {
+        org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest result = new org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest(this);
         int from_bitField0_ = bitField0_;
         int to_bitField0_ = 0;
-        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
-          to_bitField0_ |= 0x00000001;
-        }
-        if (regionABuilder_ == null) {
-          result.regionA_ = regionA_;
+        if (regionBuilder_ == null) {
+          if (((bitField0_ & 0x00000001) == 0x00000001)) {
+            region_ = java.util.Collections.unmodifiableList(region_);
+            bitField0_ = (bitField0_ & ~0x00000001);
+          }
+          result.region_ = region_;
         } else {
-          result.regionA_ = regionABuilder_.build();
+          result.region_ = regionBuilder_.build();
         }
         if (((from_bitField0_ & 0x00000002) == 0x00000002)) {
-          to_bitField0_ |= 0x00000002;
-        }
-        if (regionBBuilder_ == null) {
-          result.regionB_ = regionB_;
-        } else {
-          result.regionB_ = regionBBuilder_.build();
-        }
-        if (((from_bitField0_ & 0x00000004) == 0x00000004)) {
-          to_bitField0_ |= 0x00000004;
+          to_bitField0_ |= 0x00000001;
         }
         result.forcible_ = forcible_;
-        if (((from_bitField0_ & 0x00000008) == 0x00000008)) {
-          to_bitField0_ |= 0x00000008;
+        if (((from_bitField0_ & 0x00000004) == 0x00000004)) {
+          to_bitField0_ |= 0x00000002;
         }
         result.nonceGroup_ = nonceGroup_;
-        if (((from_bitField0_ & 0x00000010) == 0x00000010)) {
-          to_bitField0_ |= 0x00000010;
+        if (((from_bitField0_ & 0x00000008) == 0x00000008)) {
+          to_bitField0_ |= 0x00000004;
         }
         result.nonce_ = nonce_;
         result.bitField0_ = to_bitField0_;
@@ -6141,21 +6076,41 @@ public final class MasterProtos {
         return (Builder) super.addRepeatedField(field, value);
       }
       public Builder mergeFrom(org.apache.hadoop.hbase.shaded.com.google.protobuf.Message other) {
-        if (other instanceof org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest) {
-          return mergeFrom((org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest)other);
+        if (other instanceof org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest) {
+          return mergeFrom((org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest)other);
         } else {
           super.mergeFrom(other);
           return this;
         }
       }
 
-      public Builder mergeFrom(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest other) {
-        if (other == org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest.getDefaultInstance()) return this;
-        if (other.hasRegionA()) {
-          mergeRegionA(other.getRegionA());
-        }
-        if (other.hasRegionB()) {
-          mergeRegionB(other.getRegionB());
+      public Builder mergeFrom(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest other) {
+        if (other == org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest.getDefaultInstance()) return this;
+        if (regionBuilder_ == null) {
+          if (!other.region_.isEmpty()) {
+            if (region_.isEmpty()) {
+              region_ = other.region_;
+              bitField0_ = (bitField0_ & ~0x00000001);
+            } else {
+              ensureRegionIsMutable();
+              region_.addAll(other.region_);
+            }
+            onChanged();
+          }
+        } else {
+          if (!other.region_.isEmpty()) {
+            if (regionBuilder_.isEmpty()) {
+              regionBuilder_.dispose();
+              regionBuilder_ = null;
+              region_ = other.region_;
+              bitField0_ = (bitField0_ & ~0x00000001);
+              regionBuilder_ =
+                org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
+                   getRegionFieldBuilder() : null;
+            } else {
+              regionBuilder_.addAllMessages(other.region_);
+            }
+          }
         }
         if (other.hasForcible()) {
           setForcible(other.getForcible());
@@ -6172,17 +6127,10 @@ public final class MasterProtos {
       }
 
       public final boolean isInitialized() {
-        if (!hasRegionA()) {
-          return false;
-        }
-        if (!hasRegionB()) {
-          return false;
-        }
-        if (!getRegionA().isInitialized()) {
-          return false;
-        }
-        if (!getRegionB().isInitialized()) {
-          return false;
+        for (int i = 0; i < getRegionCount(); i++) {
+          if (!getRegion(i).isInitialized()) {
+            return false;
+          }
         }
         return true;
       }
@@ -6191,11 +6139,11 @@ public final class MasterProtos {
           org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream input,
           org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest parsedMessage = null;
+        org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest parsedMessage = null;
         try {
           parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest) e.getUnfinishedMessage();
+          parsedMessage = (org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
           if (parsedMessage != null) {
@@ -6206,240 +6154,244 @@ public final class MasterProtos {
       }
       private int bitField0_;
 
-      private org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier regionA_ = null;
-      private org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
-          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder> regionABuilder_;
+      private java.util.List<org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier> region_ =
+        java.util.Collections.emptyList();
+      private void ensureRegionIsMutable() {
+        if (!((bitField0_ & 0x00000001) == 0x00000001)) {
+          region_ = new java.util.ArrayList<org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier>(region_);
+          bitField0_ |= 0x00000001;
+         }
+      }
+
+      private org.apache.hadoop.hbase.shaded.com.google.protobuf.RepeatedFieldBuilderV3<
+          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder> regionBuilder_;
+
       /**
-       * <code>required .hbase.pb.RegionSpecifier region_a = 1;</code>
+       * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
        */
-      public boolean hasRegionA() {
-        return ((bitField0_ & 0x00000001) == 0x00000001);
+      public java.util.List<org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier> getRegionList() {
+        if (regionBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(region_);
+        } else {
+          return regionBuilder_.getMessageList();
+        }
+      }
+      /**
+       * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
+       */
+      public int getRegionCount() {
+        if (regionBuilder_ == null) {
+          return region_.size();
+        } else {
+          return regionBuilder_.getCount();
+        }
       }
       /**
-       * <code>required .hbase.pb.RegionSpecifier region_a = 1;</code>
+       * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
        */
-      public org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier getRegionA() {
-        if (regionABuilder_ == null) {
-          return regionA_ == null ? org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.getDefaultInstance() : regionA_;
+      public org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier getRegion(int index) {
+        if (regionBuilder_ == null) {
+          return region_.get(index);
         } else {
-          return regionABuilder_.getMessage();
+          return regionBuilder_.getMessage(index);
         }
       }
       /**
-       * <code>required .hbase.pb.RegionSpecifier region_a = 1;</code>
+       * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
        */
-      public Builder setRegionA(org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier value) {
-        if (regionABuilder_ == null) {
+      public Builder setRegion(
+          int index, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier value) {
+        if (regionBuilder_ == null) {
           if (value == null) {
             throw new NullPointerException();
           }
-          regionA_ = value;
+          ensureRegionIsMutable();
+          region_.set(index, value);
           onChanged();
         } else {
-          regionABuilder_.setMessage(value);
+          regionBuilder_.setMessage(index, value);
         }
-        bitField0_ |= 0x00000001;
         return this;
       }
       /**
-       * <code>required .hbase.pb.RegionSpecifier region_a = 1;</code>
+       * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
        */
-      public Builder setRegionA(
-          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder builderForValue) {
-        if (regionABuilder_ == null) {
-          regionA_ = builderForValue.build();
+      public Builder setRegion(
+          int index, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder builderForValue) {
+        if (regionBuilder_ == null) {
+          ensureRegionIsMutable();
+          region_.set(index, builderForValue.build());
           onChanged();
         } else {
-          regionABuilder_.setMessage(builderForValue.build());
+          regionBuilder_.setMessage(index, builderForValue.build());
         }
-        bitField0_ |= 0x00000001;
         return this;
       }
       /**
-       * <code>required .hbase.pb.RegionSpecifier region_a = 1;</code>
+       * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
        */
-      public Builder mergeRegionA(org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier value) {
-        if (regionABuilder_ == null) {
-          if (((bitField0_ & 0x00000001) == 0x00000001) &&
-              regionA_ != null &&
-              regionA_ != org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.getDefaultInstance()) {
-            regionA_ =
-              org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.newBuilder(regionA_).mergeFrom(value).buildPartial();
-          } else {
-            regionA_ = value;
+      public Builder addRegion(org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier value) {
+        if (regionBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
           }
+          ensureRegionIsMutable();
+          region_.add(value);
           onChanged();
         } else {
-          regionABuilder_.mergeFrom(value);
+          regionBuilder_.addMessage(value);
         }
-        bitField0_ |= 0x00000001;
         return this;
       }
       /**
-       * <code>required .hbase.pb.RegionSpecifier region_a = 1;</code>
+       * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
        */
-      public Builder clearRegionA() {
-        if (regionABuilder_ == null) {
-          regionA_ = null;
+      public Builder addRegion(
+          int index, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier value) {
+        if (regionBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureRegionIsMutable();
+          region_.add(index, value);
           onChanged();
         } else {
-          regionABuilder_.clear();
+          regionBuilder_.addMessage(index, value);
         }
-        bitField0_ = (bitField0_ & ~0x00000001);
         return this;
       }
       /**
-       * <code>required .hbase.pb.RegionSpecifier region_a = 1;</code>
-       */
-      public org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder getRegionABuilder() {
-        bitField0_ |= 0x00000001;
-        onChanged();
-        return getRegionAFieldBuilder().getBuilder();
-      }
-      /**
-       * <code>required .hbase.pb.RegionSpecifier region_a = 1;</code>
+       * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
        */
-      public org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder getRegionAOrBuilder() {
-        if (regionABuilder_ != null) {
-          return regionABuilder_.getMessageOrBuilder();
+      public Builder addRegion(
+          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder builderForValue) {
+        if (regionBuilder_ == null) {
+          ensureRegionIsMutable();
+          region_.add(builderForValue.build());
+          onChanged();
         } else {
-          return regionA_ == null ?
-              org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.getDefaultInstance() : regionA_;
+          regionBuilder_.addMessage(builderForValue.build());
         }
+        return this;
       }
       /**
-       * <code>required .hbase.pb.RegionSpecifier region_a = 1;</code>
+       * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
        */
-      private org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
-          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder> 
-          getRegionAFieldBuilder() {
-        if (regionABuilder_ == null) {
-          regionABuilder_ = new org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
-              org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder>(
-                  getRegionA(),
-                  getParentForChildren(),
-                  isClean());
-          regionA_ = null;
+      public Builder addRegion(
+          int index, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder builderForValue) {
+        if (regionBuilder_ == null) {
+          ensureRegionIsMutable();
+          region_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          regionBuilder_.addMessage(index, builderForValue.build());
         }
-        return regionABuilder_;
-      }
-
-      private org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier regionB_ = null;
-      private org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
-          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder> regionBBuilder_;
-      /**
-       * <code>required .hbase.pb.RegionSpecifier region_b = 2;</code>
-       */
-      public boolean hasRegionB() {
-        return ((bitField0_ & 0x00000002) == 0x00000002);
+        return this;
       }
       /**
-       * <code>required .hbase.pb.RegionSpecifier region_b = 2;</code>
+       * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
        */
-      public org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier getRegionB() {
-        if (regionBBuilder_ == null) {
-          return regionB_ == null ? org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.getDefaultInstance() : regionB_;
+      public Builder addAllRegion(
+          java.lang.Iterable<? extends org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier> values) {
+        if (regionBuilder_ == null) {
+          ensureRegionIsMutable();
+          org.apache.hadoop.hbase.shaded.com.google.protobuf.AbstractMessageLite.Builder.addAll(
+              values, region_);
+          onChanged();
         } else {
-          return regionBBuilder_.getMessage();
+          regionBuilder_.addAllMessages(values);
         }
+        return this;
       }
       /**
-       * <code>required .hbase.pb.RegionSpecifier region_b = 2;</code>
+       * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
        */
-      public Builder setRegionB(org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier value) {
-        if (regionBBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          regionB_ = value;
+      public Builder clearRegion() {
+        if (regionBuilder_ == null) {
+          region_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000001);
           onChanged();
         } else {
-          regionBBuilder_.setMessage(value);
+          regionBuilder_.clear();
         }
-        bitField0_ |= 0x00000002;
         return this;
       }
       /**
-       * <code>required .hbase.pb.RegionSpecifier region_b = 2;</code>
+       * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
        */
-      public Builder setRegionB(
-          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder builderForValue) {
-        if (regionBBuilder_ == null) {
-          regionB_ = builderForValue.build();
+      public Builder removeRegion(int index) {
+        if (regionBuilder_ == null) {
+          ensureRegionIsMutable();
+          region_.remove(index);
           onChanged();
         } else {
-          regionBBuilder_.setMessage(builderForValue.build());
+          regionBuilder_.remove(index);
         }
-        bitField0_ |= 0x00000002;
         return this;
       }
       /**
-       * <code>required .hbase.pb.RegionSpecifier region_b = 2;</code>
+       * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
        */
-      public Builder mergeRegionB(org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier value) {
-        if (regionBBuilder_ == null) {
-          if (((bitField0_ & 0x00000002) == 0x00000002) &&
-              regionB_ != null &&
-              regionB_ != org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.getDefaultInstance()) {
-            regionB_ =
-              org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.newBuilder(regionB_).mergeFrom(value).buildPartial();
-          } else {
-            regionB_ = value;
-          }
-          onChanged();
-        } else {
-          regionBBuilder_.mergeFrom(value);
+      public org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder getRegionBuilder(
+          int index) {
+        return getRegionFieldBuilder().getBuilder(index);
+      }
+      /**
+       * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
+       */
+      public org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder getRegionOrBuilder(
+          int index) {
+        if (regionBuilder_ == null) {
+          return region_.get(index);  } else {
+          return regionBuilder_.getMessageOrBuilder(index);
         }
-        bitField0_ |= 0x00000002;
-        return this;
       }
       /**
-       * <code>required .hbase.pb.RegionSpecifier region_b = 2;</code>
+       * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
        */
-      public Builder clearRegionB() {
-        if (regionBBuilder_ == null) {
-          regionB_ = null;
-          onChanged();
+      public java.util.List<? extends org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder>
+           getRegionOrBuilderList() {
+        if (regionBuilder_ != null) {
+          return regionBuilder_.getMessageOrBuilderList();
         } else {
-          regionBBuilder_.clear();
+          return java.util.Collections.unmodifiableList(region_);
         }
-        bitField0_ = (bitField0_ & ~0x00000002);
-        return this;
       }
       /**
-       * <code>required .hbase.pb.RegionSpecifier region_b = 2;</code>
+       * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
        */
-      public org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder getRegionBBuilder() {
-        bitField0_ |= 0x00000002;
-        onChanged();
-        return getRegionBFieldBuilder().getBuilder();
+      public org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder addRegionBuilder() {
+        return getRegionFieldBuilder().addBuilder(
+            org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.getDefaultInstance());
       }
       /**
-       * <code>required .hbase.pb.RegionSpecifier region_b = 2;</code>
+       * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
        */
-      public org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder getRegionBOrBuilder() {
-        if (regionBBuilder_ != null) {
-          return regionBBuilder_.getMessageOrBuilder();
-        } else {
-          return regionB_ == null ?
-              org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.getDefaultInstance() : regionB_;
-        }
+      public org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder addRegionBuilder(
+          int index) {
+        return getRegionFieldBuilder().addBuilder(
+            index, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.getDefaultInstance());
       }
       /**
-       * <code>required .hbase.pb.RegionSpecifier region_b = 2;</code>
+       * <code>repeated .hbase.pb.RegionSpecifier region = 1;</code>
        */
-      private org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
-          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder> 
-          getRegionBFieldBuilder() {
-        if (regionBBuilder_ == null) {
-          regionBBuilder_ = new org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
+      public java.util.List<org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder>
+           getRegionBuilderList() {
+        return getRegionFieldBuilder().getBuilderList();
+      }
+      private org.apache.hadoop.hbase.shaded.com.google.protobuf.RepeatedFieldBuilderV3<
+          org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder>
+          getRegionFieldBuilder() {
+        if (regionBuilder_ == null) {
+          regionBuilder_ = new org.apache.hadoop.hbase.shaded.com.google.protobuf.RepeatedFieldBuilderV3<
               org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.Builder, org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifierOrBuilder>(
-                  getRegionB(),
+                  region_,
+                  ((bitField0_ & 0x00000001) == 0x00000001),
                   getParentForChildren(),
                   isClean());
-          regionB_ = null;
+          region_ = null;
         }
-        return regionBBuilder_;
+        return regionBuilder_;
       }
 
       private boolean forcible_ ;
@@ -6447,7 +6399,7 @@ public final class MasterProtos {
        * <code>optional bool forcible = 3 [default = false];</code>
        */
       public boolean hasForcible() {
-        return ((bitField0_ & 0x00000004) == 0x00000004);
+        return ((bitField0_ & 0x00000002) == 0x00000002);
       }
       /**
        * <code>optional bool forcible = 3 [default = false];</code>
@@ -6459,7 +6411,7 @@ public final class MasterProtos {
        * <code>optional bool forcible = 3 [default = false];</code>
        */
       public Builder setForcible(boolean value) {
-        bitField0_ |= 0x00000004;
+        bitField0_ |= 0x00000002;
         forcible_ = value;
         onChanged();
         return this;
@@ -6468,7 +6420,7 @@ public final class MasterProtos {
        * <code>optional bool forcible = 3 [default = false];</code>
        */
       public Builder clearForcible() {
-        bitField0_ = (bitField0_ & ~0x00000004);
+        bitField0_ = (bitField0_ & ~0x00000002);
         forcible_ = false;
         onChanged();
         return this;
@@ -6479,7 +6431,7 @@ public final class MasterProtos {
        * <code>optional uint64 nonce_group = 4 [default = 0];</code>
        */
       public boolean hasNonceGroup() {
-        return ((bitField0_ & 0x00000008) == 0x00000008);
+        return ((bitField0_ & 0x00000004) == 0x00000004);
       }
       /**
        * <code>optional uint64 nonce_group = 4 [default = 0];</code>
@@ -6491,7 +6443,7 @@ public final class MasterProtos {
        * <code>optional uint64 nonce_group = 4 [default = 0];</code>
        */
       public Builder setNonceGroup(long value) {
-        bitField0_ |= 0x00000008;
+        bitField0_ |= 0x00000004;
         nonceGroup_ = value;
         onChanged();
         return this;
@@ -6500,7 +6452,7 @@ public final class MasterProtos {
        * <code>optional uint64 nonce_group = 4 [default = 0];</code>
        */
       public Builder clearNonceGroup() {
-        bitField0_ = (bitField0_ & ~0x00000008);
+        bitField0_ = (bitField0_ & ~0x00000004);
         nonceGroup_ = 0L;
         onChanged();
         return this;
@@ -6511,7 +6463,7 @@ public final class MasterProtos {
        * <code>optional uint64 nonce = 5 [default = 0];</code>
        */
       public boolean hasNonce() {
-        return ((bitField0_ & 0x00000010) == 0x00000010);
+        return ((bitField0_ & 0x00000008) == 0x00000008);
       }
       /**
        * <code>optional uint64 nonce = 5 [default = 0];</code>
@@ -6523,7 +6475,7 @@ public final class MasterProtos {
        * <code>optional uint64 nonce = 5 [default = 0];</code>
        */
       public Builder setNonce(long value) {
-        bitField0_ |= 0x00000010;
+        bitField0_ |= 0x00000008;
         nonce_ = value;
         onChanged();
         return this;
@@ -6532,7 +6484,7 @@ public final class MasterProtos {
        * <code>optional uint64 nonce = 5 [default = 0];</code>
        */
       public Builder clearNonce() {
-        bitField0_ = (bitField0_ & ~0x00000010);
+        bitField0_ = (bitField0_ & ~0x00000008);
         nonce_ = 0L;
         onChanged();
         return this;
@@ -6548,46 +6500,46 @@ public final class MasterProtos {
       }
 
 
-      // @@protoc_insertion_point(builder_scope:hbase.pb.DispatchMergingRegionsRequest)
+      // @@protoc_insertion_point(builder_scope:hbase.pb.MergeTableRegionsRequest)
     }
 
-    // @@protoc_insertion_point(class_scope:hbase.pb.DispatchMergingRegionsRequest)
-    private static final org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest DEFAULT_INSTANCE;
+    // @@protoc_insertion_point(class_scope:hbase.pb.MergeTableRegionsRequest)
+    private static final org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest DEFAULT_INSTANCE;
     static {
-      DEFAULT_INSTANCE = new org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest();
+      DEFAULT_INSTANCE = new org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest();
     }
 
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest getDefaultInstance() {
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest getDefaultInstance() {
       return DEFAULT_INSTANCE;
     }
 
-    @java.lang.Deprecated public static final org.apache.hadoop.hbase.shaded.com.google.protobuf.Parser<DispatchMergingRegionsRequest>
-        PARSER = new org.apache.hadoop.hbase.shaded.com.google.protobuf.AbstractParser<DispatchMergingRegionsRequest>() {
-      public DispatchMergingRegionsRequest parsePartialFrom(
+    @java.lang.Deprecated public static final org.apache.hadoop.hbase.shaded.com.google.protobuf.Parser<MergeTableRegionsRequest>
+        PARSER = new org.apache.hadoop.hbase.shaded.com.google.protobuf.AbstractParser<MergeTableRegionsRequest>() {
+      public MergeTableRegionsRequest parsePartialFrom(
           org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream input,
           org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException {
-          return new DispatchMergingRegionsRequest(input, extensionRegistry);
+          return new MergeTableRegionsRequest(input, extensionRegistry);
       }
     };
 
-    public static org.apache.hadoop.hbase.shaded.com.google.protobuf.Parser<DispatchMergingRegionsRequest> parser() {
+    public static org.apache.hadoop.hbase.shaded.com.google.protobuf.Parser<MergeTableRegionsRequest> parser() {
       return PARSER;
     }
 
     @java.lang.Override
-    public org.apache.hadoop.hbase.shaded.com.google.protobuf.Parser<DispatchMergingRegionsRequest> getParserForType() {
+    public org.apache.hadoop.hbase.shaded.com.google.protobuf.Parser<MergeTableRegionsRequest> getParserForType() {
       return PARSER;
     }
 
-    public org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsRequest getDefaultInstanceForType() {
+    public org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsRequest getDefaultInstanceForType() {
       return DEFAULT_INSTANCE;
     }
 
   }
 
-  public interface DispatchMergingRegionsResponseOrBuilder extends
-      // @@protoc_insertion_point(interface_extends:hbase.pb.DispatchMergingRegionsResponse)
+  public interface MergeTableRegionsResponseOrBuilder extends
+      // @@protoc_insertion_point(interface_extends:hbase.pb.MergeTableRegionsResponse)
       org.apache.hadoop.hbase.shaded.com.google.protobuf.MessageOrBuilder {
 
     /**
@@ -6600,17 +6552,17 @@ public final class MasterProtos {
     long getProcId();
   }
   /**
-   * Protobuf type {@code hbase.pb.DispatchMergingRegionsResponse}
+   * Protobuf type {@code hbase.pb.MergeTableRegionsResponse}
    */
-  public  static final class DispatchMergingRegionsResponse extends
+  public  static final class MergeTableRegionsResponse extends
       org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3 implements
-      // @@protoc_insertion_point(message_implements:hbase.pb.DispatchMergingRegionsResponse)
-      DispatchMergingRegionsResponseOrBuilder {
-    // Use DispatchMergingRegionsResponse.newBuilder() to construct.
-    private DispatchMergingRegionsResponse(org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      // @@protoc_insertion_point(message_implements:hbase.pb.MergeTableRegionsResponse)
+      MergeTableRegionsResponseOrBuilder {
+    // Use MergeTableRegionsResponse.newBuilder() to construct.
+    private MergeTableRegionsResponse(org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
       super(builder);
     }
-    private DispatchMergingRegionsResponse() {
+    private MergeTableRegionsResponse() {
       procId_ = 0L;
     }
 
@@ -6619,7 +6571,7 @@ public final class MasterProtos {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private DispatchMergingRegionsResponse(
+    private MergeTableRegionsResponse(
         org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream input,
         org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException {
@@ -6661,14 +6613,14 @@ public final class MasterProtos {
     }
     public static final org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
-      return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_DispatchMergingRegionsResponse_descriptor;
+      return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_MergeTableRegionsResponse_descriptor;
     }
 
     protected org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
         internalGetFieldAccessorTable() {
-      return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_DispatchMergingRegionsResponse_fieldAccessorTable
+      return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_MergeTableRegionsResponse_fieldAccessorTable
           .ensureFieldAccessorsInitialized(
-              org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse.class, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse.Builder.class);
+              org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse.class, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse.Builder.class);
     }
 
     private int bitField0_;
@@ -6725,10 +6677,10 @@ public final class MasterProtos {
       if (obj == this) {
        return true;
       }
-      if (!(obj instanceof org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse)) {
+      if (!(obj instanceof org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse)) {
         return super.equals(obj);
       }
-      org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse other = (org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse) obj;
+      org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse other = (org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse) obj;
 
       boolean result = true;
       result = result && (hasProcId() == other.hasProcId());
@@ -6757,58 +6709,58 @@ public final class MasterProtos {
       return hash;
     }
 
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse parseFrom(
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse parseFrom(
         org.apache.hadoop.hbase.shaded.com.google.protobuf.ByteString data)
         throws org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse parseFrom(
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse parseFrom(
         org.apache.hadoop.hbase.shaded.com.google.protobuf.ByteString data,
         org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse parseFrom(byte[] data)
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse parseFrom(byte[] data)
         throws org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse parseFrom(
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse parseFrom(
         byte[] data,
         org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse parseFrom(java.io.InputStream input)
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse parseFrom(java.io.InputStream input)
         throws java.io.IOException {
       return org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
           .parseWithIOException(PARSER, input);
     }
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse parseFrom(
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse parseFrom(
         java.io.InputStream input,
         org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
       return org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
           .parseWithIOException(PARSER, input, extensionRegistry);
     }
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse parseDelimitedFrom(java.io.InputStream input)
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse parseDelimitedFrom(java.io.InputStream input)
         throws java.io.IOException {
       return org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
           .parseDelimitedWithIOException(PARSER, input);
     }
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse parseDelimitedFrom(
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse parseDelimitedFrom(
         java.io.InputStream input,
         org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
       return org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
           .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
     }
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse parseFrom(
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse parseFrom(
         org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream input)
         throws java.io.IOException {
       return org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
           .parseWithIOException(PARSER, input);
     }
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse parseFrom(
+    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse parseFrom(
         org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream input,
         org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
@@ -6820,7 +6772,7 @@ public final class MasterProtos {
     public static Builder newBuilder() {
       return DEFAULT_INSTANCE.toBuilder();
     }
-    public static Builder newBuilder(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse prototype) {
+    public static Builder newBuilder(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse prototype) {
       return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
     }
     public Builder toBuilder() {
@@ -6835,25 +6787,25 @@ public final class MasterProtos {
       return builder;
     }
     /**
-     * Protobuf type {@code hbase.pb.DispatchMergingRegionsResponse}
+     * Protobuf type {@code hbase.pb.MergeTableRegionsResponse}
      */
     public static final class Builder extends
         org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
-        // @@protoc_insertion_point(builder_implements:hbase.pb.DispatchMergingRegionsResponse)
-        org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponseOrBuilder {
+        // @@protoc_insertion_point(builder_implements:hbase.pb.MergeTableRegionsResponse)
+        org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponseOrBuilder {
       public static final org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.Descriptor
           getDescriptor() {
-        return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_DispatchMergingRegionsResponse_descriptor;
+        return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_MergeTableRegionsResponse_descriptor;
       }
 
       protected org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
           internalGetFieldAccessorTable() {
-        return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_DispatchMergingRegionsResponse_fieldAccessorTable
+        return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_MergeTableRegionsResponse_fieldAccessorTable
             .ensureFieldAccessorsInitialized(
-                org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse.class, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse.Builder.class);
+                org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse.class, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse.Builder.class);
       }
 
-      // Construct using org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse.newBuilder()
+      // Construct using org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse.newBuilder()
       private Builder() {
         maybeForceBuilderInitialization();
       }
@@ -6877,23 +6829,23 @@ public final class MasterProtos {
 
       public org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.Descriptor
           getDescriptorForType() {
-        return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_DispatchMergingRegionsResponse_descriptor;
+        return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.internal_static_hbase_pb_MergeTableRegionsResponse_descriptor;
       }
 
-      public org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse getDefaultInstanceForType() {
-        return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse.getDefaultInstance();
+      public org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse getDefaultInstanceForType() {
+        return org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse.getDefaultInstance();
       }
 
-      public org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse build() {
-        org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse result = buildPartial();
+      public org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse build() {
+        org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse result = buildPartial();
         if (!result.isInitialized()) {
           throw newUninitializedMessageException(result);
         }
         return result;
       }
 
-      public org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse buildPartial() {
-        org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse result = new org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse(this);
+      public org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse buildPartial() {
+        org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse result = new org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.MergeTableRegionsResponse(this);
         int from_bitField0_ = bitField0_;
         int to_bitField0_ = 0;
         if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
@@ -6932,2515 +6884,19 @@ public final class MasterProtos {
         return (Builder) super.addRepeatedField(field, value);
       }
       public Builder mergeFrom(org.apache.hadoop.hbase.shaded.com.google.protobuf.Message other) {
-        if (other instanceof org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse) {
-          return mergeFrom((org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse)other);
-        } else {
-          super.mergeFrom(other);
-          return this;
-        }
-      }
-
-      public Builder mergeFrom(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse other) {
-        if (other == org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse.getDefaultInstance()) return this;
-        if (other.hasProcId()) {
-          setProcId(other.getProcId());
-        }
-        this.mergeUnknownFields(other.unknownFields);
-        onChanged();
-        return this;
-      }
-
-      public final boolean isInitialized() {
-        return true;
-      }
-
-      public Builder mergeFrom(
-          org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream input,
-          org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws java.io.IOException {
-        org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse parsedMessage = null;
-        try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
-        } catch (org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse) e.getUnfinishedMessage();
-          throw e.unwrapIOException();
-        } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
-        return this;
-      }
-      private int bitField0_;
-
-      private long procId_ ;
-      /**
-       * <code>optional uint64 proc_id = 1;</code>
-       */
-      public boolean hasProcId() {
-        return ((bitField0_ & 0x00000001) == 0x00000001);
-      }
-      /**
-       * <code>optional uint64 proc_id = 1;</code>
-       */
-      public long getProcId() {
-        return procId_;
-      }
-      /**
-       * <code>optional uint64 proc_id = 1;</code>
-       */
-      public Builder setProcId(long value) {
-        bitField0_ |= 0x00000001;
-        procId_ = value;
-        onChanged();
-        return this;
-      }
-      /**
-       * <code>optional uint64 proc_id = 1;</code>
-       */
-      public Builder clearProcId() {
-        bitField0_ = (bitField0_ & ~0x00000001);
-        procId_ = 0L;
-        onChanged();
-        return this;
-      }
-      public final Builder setUnknownFields(
-          final org.apache.hadoop.hbase.shaded.com.google.protobuf.UnknownFieldSet unknownFields) {
-        return super.setUnknownFields(unknownFields);
-      }
-
-      public final Builder mergeUnknownFields(
-          final org.apache.hadoop.hbase.shaded.com.google.protobuf.UnknownFieldSet unknownFields) {
-        return super.mergeUnknownFields(unknownFields);
-      }
-
-
-      // @@protoc_insertion_point(builder_scope:hbase.pb.DispatchMergingRegionsResponse)
-    }
-
-    // @@protoc_insertion_point(class_scope:hbase.pb.DispatchMergingRegionsResponse)
-    private static final org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse DEFAULT_INSTANCE;
-    static {
-      DEFAULT_INSTANCE = new org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse();
-    }
-
-    public static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.DispatchMergingRegionsResponse getDefaultInstance() {
-      return DEFAULT_INSTANCE;
-    }
-
-    @java.lang.Deprecated public static final org.apache.hadoop.hbase.shaded.com.google.protobuf.Parser<DispatchMergingRegionsResponse>
-        PARSER = new org.apache.hadoop.hbase.shaded.com.google.protobuf.AbstractParser<DispatchMergingRegionsResponse>() {
-      public DispatchMergingRegionsResponse parsePartialFrom(
-          org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream input,
-          org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException {
-          return new DispatchMergingRegionsResponse(input, extensionRegistry);
-      }
-    };
-
-    public static org.apache.hadoop.hbase.shaded.com.google.protobuf.Parser<Dispatc

<TRUNCATED>