HBASE-6659 Port HBASE-6508 Filter out edits at log split time

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1381684 13f79535-47bb-0310-9956-ffa450edef68

hbase-server/src/main/java/org/apache/hadoop/hbase/RegionLoad.java

@@ -153,4 +153,12 @@ public class RegionLoad {
   public long getCurrentCompactedKVs() {
     return regionLoadPB.getCurrentCompactedKVs();
   }
+
+  /**
+   * This does not really belong inside RegionLoad but its being done in the name of expediency.
+   * @return the completed sequence Id for the region
+   */
+  public long getCompleteSequenceId() {
+    return regionLoadPB.getCompleteSequenceId();
+  }
 }

hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java

@@ -30,8 +30,11 @@ import java.util.Comparator;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Map.Entry;
 import java.util.Set;
+import java.util.SortedMap;
 import java.util.concurrent.Callable;
+import java.util.concurrent.ConcurrentSkipListMap;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.Executors;
 import java.util.concurrent.Future;
@@ -58,6 +61,7 @@ import org.apache.hadoop.hbase.MasterMonitorProtocol;
 import org.apache.hadoop.hbase.MasterNotRunningException;
 import org.apache.hadoop.hbase.NotAllMetaRegionsOnlineException;
 import org.apache.hadoop.hbase.PleaseHoldException;
+import org.apache.hadoop.hbase.RegionLoad;
 import org.apache.hadoop.hbase.RegionServerStatusProtocol;
 import org.apache.hadoop.hbase.Server;
 import org.apache.hadoop.hbase.ServerLoad;
@@ -150,6 +154,8 @@ import org.apache.hadoop.hbase.protobuf.generated.MasterMonitorProtos.GetTableDe
 import org.apache.hadoop.hbase.protobuf.generated.MasterMonitorProtos.GetTableDescriptorsResponse;
 import org.apache.hadoop.hbase.protobuf.generated.MasterProtos.IsMasterRunningRequest;
 import org.apache.hadoop.hbase.protobuf.generated.MasterProtos.IsMasterRunningResponse;
+import org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest;
+import org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse;
 import org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.RegionServerReportRequest;
 import org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.RegionServerReportResponse;
 import org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.RegionServerStartupRequest;
@@ -1149,9 +1155,17 @@ Server {
     return resp;
   }
 
+  @Override
+  public GetLastFlushedSequenceIdResponse getLastFlushedSequenceId(RpcController controller,
+      GetLastFlushedSequenceIdRequest request) throws ServiceException {
+    byte[] regionName = request.getRegionName().toByteArray();
+    long seqId = serverManager.getLastFlushedSequenceId(regionName);
+    return ResponseConverter.buildGetLastFlushedSequenceIdResponse(seqId);
+  }
+
   @Override
   public RegionServerReportResponse regionServerReport(
-      RpcController controller,RegionServerReportRequest request) throws ServiceException {
+      RpcController controller, RegionServerReportRequest request) throws ServiceException {
     try {
       HBaseProtos.ServerLoad sl = request.getLoad();
       this.serverManager.regionServerReport(ProtobufUtil.toServerName(request.getServer()), new ServerLoad(sl));
@@ -1746,12 +1760,14 @@ Server {
   }
 
   @Override
-  public GetClusterStatusResponse getClusterStatus(RpcController controller, GetClusterStatusRequest req)
+  public GetClusterStatusResponse getClusterStatus(RpcController controller,
+      GetClusterStatusRequest req)
   throws ServiceException {
     GetClusterStatusResponse.Builder response = GetClusterStatusResponse.newBuilder();
     response.setClusterStatus(getClusterStatus().convert());
     return response.build();
   }
+
   /**
    * @return cluster status
    */
@@ -1770,7 +1786,8 @@ Server {
     for (String s: backupMasterStrings) {
       try {
         byte [] bytes =
-            ZKUtil.getData(this.zooKeeper, ZKUtil.joinZNode(this.zooKeeper.backupMasterAddressesZNode, s));
+            ZKUtil.getData(this.zooKeeper, ZKUtil.joinZNode(
+                this.zooKeeper.backupMasterAddressesZNode, s));
         if (bytes != null) {
           ServerName sn;
           try {

hbase-server/src/main/java/org/apache/hadoop/hbase/master/ServerManager.java

@@ -28,7 +28,10 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.SortedMap;
+import java.util.Map.Entry;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentSkipListMap;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
@@ -37,14 +40,10 @@ import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hbase.ClockOutOfSyncException;
 import org.apache.hadoop.hbase.HRegionInfo;
 import org.apache.hadoop.hbase.HServerAddress;
-import org.apache.hadoop.hbase.protobuf.ProtobufUtil;
-import org.apache.hadoop.hbase.protobuf.RequestConverter;
-import org.apache.hadoop.hbase.protobuf.ResponseConverter;
-import org.apache.hadoop.hbase.protobuf.generated.AdminProtos.OpenRegionRequest;
-import org.apache.hadoop.hbase.protobuf.generated.AdminProtos.OpenRegionResponse;
-import org.apache.hadoop.hbase.ServerLoad;
 import org.apache.hadoop.hbase.PleaseHoldException;
+import org.apache.hadoop.hbase.RegionLoad;
 import org.apache.hadoop.hbase.Server;
+import org.apache.hadoop.hbase.ServerLoad;
 import org.apache.hadoop.hbase.ServerName;
 import org.apache.hadoop.hbase.YouAreDeadException;
 import org.apache.hadoop.hbase.ZooKeeperConnectionException;
@@ -55,8 +54,16 @@ import org.apache.hadoop.hbase.client.RetriesExhaustedException;
 import org.apache.hadoop.hbase.master.handler.MetaServerShutdownHandler;
 import org.apache.hadoop.hbase.master.handler.ServerShutdownHandler;
 import org.apache.hadoop.hbase.monitoring.MonitoredTask;
+import org.apache.hadoop.hbase.protobuf.ProtobufUtil;
+import org.apache.hadoop.hbase.protobuf.RequestConverter;
+import org.apache.hadoop.hbase.protobuf.ResponseConverter;
+import org.apache.hadoop.hbase.protobuf.generated.AdminProtos.OpenRegionRequest;
+import org.apache.hadoop.hbase.protobuf.generated.AdminProtos.OpenRegionResponse;
+import org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse;
 import org.apache.hadoop.hbase.regionserver.RegionOpeningState;
+import org.apache.hadoop.hbase.util.Bytes;
 
+import com.google.protobuf.RpcController;
 import com.google.protobuf.ServiceException;
 
 /**
@@ -79,6 +86,9 @@ public class ServerManager {
   // Set if we are to shutdown the cluster.
   private volatile boolean clusterShutdown = false;
 
+  private final SortedMap<byte[], Long> flushedSequenceIdByRegion =
+    new ConcurrentSkipListMap<byte[], Long>(Bytes.BYTES_COMPARATOR);
+
   /** Map of registered servers to their current load */
   private final Map<ServerName, ServerLoad> onlineServers =
     new ConcurrentHashMap<ServerName, ServerLoad>();
@@ -163,6 +173,33 @@ public class ServerManager {
     return sn;
   }
 
+  /**
+   * Updates last flushed sequence Ids for the regions on server sn
+   * @param sn
+   * @param hsl
+   */
+  private void updateLastFlushedSequenceIds(ServerName sn, ServerLoad hsl) {
+    Map<byte[], RegionLoad> regionsLoad = hsl.getRegionsLoad();
+    for (Entry<byte[], RegionLoad> entry : regionsLoad.entrySet()) {
+      Long existingValue = flushedSequenceIdByRegion.get(entry.getKey());
+      long l = entry.getValue().getCompleteSequenceId();
+      if (existingValue != null) {
+        if (l != -1 && l < existingValue) {
+          if (LOG.isDebugEnabled()) {
+            LOG.debug("RegionServer " + sn +
+                " indicates a last flushed sequence id (" + entry.getValue() +
+                ") that is less than the previous last flushed sequence id (" +
+                existingValue + ") for region " +
+                Bytes.toString(entry.getKey()) + " Ignoring.");
+          }
+          continue; // Don't let smaller sequence ids override greater
+          // sequence ids.
+        }
+      }
+      flushedSequenceIdByRegion.put(entry.getKey(), l);
+    }
+  }
+
   void regionServerReport(ServerName sn, ServerLoad sl)
   throws YouAreDeadException, PleaseHoldException {
     checkIsDead(sn, "REPORT");
@@ -178,6 +215,7 @@ public class ServerManager {
     } else {
       this.onlineServers.put(sn, sl);
     }
+    updateLastFlushedSequenceIds(sn, sl);
   }
 
   /**
@@ -271,6 +309,14 @@ public class ServerManager {
     this.serverConnections.remove(serverName);
   }
 
+  public long getLastFlushedSequenceId(byte[] regionName) {
+    long seqId = -1;
+    if (flushedSequenceIdByRegion.containsKey(regionName)) {
+      seqId = flushedSequenceIdByRegion.get(regionName);
+    }
+    return seqId;
+  }
+
   /**
    * @param serverName
    * @return ServerLoad if serverName is known else null

hbase-server/src/main/java/org/apache/hadoop/hbase/protobuf/RequestConverter.java

@@ -101,6 +101,7 @@ import org.apache.hadoop.hbase.protobuf.generated.MasterAdminProtos.BalanceReque
 import org.apache.hadoop.hbase.protobuf.generated.MasterProtos.IsMasterRunningRequest;
 import org.apache.hadoop.hbase.protobuf.generated.MasterAdminProtos.SetBalancerRunningRequest;
 import org.apache.hadoop.hbase.protobuf.generated.MasterMonitorProtos.GetClusterStatusRequest;
+import org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest;
 import org.apache.hadoop.hbase.regionserver.wal.HLog;
 import org.apache.hadoop.hbase.regionserver.wal.HLogKey;
 import org.apache.hadoop.hbase.regionserver.wal.WALEdit;
@@ -1138,4 +1139,15 @@ public final class RequestConverter {
   public static IsCatalogJanitorEnabledRequest buildIsCatalogJanitorEnabledRequest() {
     return IsCatalogJanitorEnabledRequest.newBuilder().build();
   }
+
+  /**
+   * Creates a request for querying the master the last flushed sequence Id for a region
+   * @param regionName
+   * @return A {@link GetLastFlushedSequenceIdRequest}
+   */
+  public static GetLastFlushedSequenceIdRequest buildGetLastFlushedSequenceIdRequest(
+      byte[] regionName) {
+    return GetLastFlushedSequenceIdRequest.newBuilder().setRegionName(
+        ByteString.copyFrom(regionName)).build();
+  }
 }

hbase-server/src/main/java/org/apache/hadoop/hbase/protobuf/ResponseConverter.java

@@ -38,6 +38,7 @@ import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.NameBytesPair;
 import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.RegionInfo;
 import org.apache.hadoop.hbase.protobuf.generated.MasterAdminProtos.CatalogScanResponse;
 import org.apache.hadoop.hbase.protobuf.generated.MasterAdminProtos.EnableCatalogJanitorResponse;
+import org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse;
 import org.apache.hadoop.hbase.regionserver.RegionOpeningState;
 import org.apache.hadoop.util.StringUtils;
 
@@ -238,4 +239,14 @@ public final class ResponseConverter {
   }
 
 // End utilities for Admin
+
+  /**
+   * Creates a response for the last flushed sequence Id request
+   * @return A GetLastFlushedSequenceIdResponse
+   */
+  public static GetLastFlushedSequenceIdResponse buildGetLastFlushedSequenceIdResponse(
+      long seqId) {
+    return GetLastFlushedSequenceIdResponse.newBuilder().setLastFlushedSequenceId(seqId).build();
+  }
+
 }

hbase-server/src/main/java/org/apache/hadoop/hbase/protobuf/generated/HBaseProtos.java

@@ -4049,6 +4049,10 @@ public final class HBaseProtos {
         getCoprocessorsOrBuilderList();
     org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.CoprocessorOrBuilder getCoprocessorsOrBuilder(
         int index);
+    
+    // optional uint64 completeSequenceId = 16;
+    boolean hasCompleteSequenceId();
+    long getCompleteSequenceId();
   }
   public static final class RegionLoad extends
       com.google.protobuf.GeneratedMessage
@@ -4243,6 +4247,16 @@ public final class HBaseProtos {
       return coprocessors_.get(index);
     }
     
+    // optional uint64 completeSequenceId = 16;
+    public static final int COMPLETESEQUENCEID_FIELD_NUMBER = 16;
+    private long completeSequenceId_;
+    public boolean hasCompleteSequenceId() {
+      return ((bitField0_ & 0x00004000) == 0x00004000);
+    }
+    public long getCompleteSequenceId() {
+      return completeSequenceId_;
+    }
+    
     private void initFields() {
       regionSpecifier_ = org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.RegionSpecifier.getDefaultInstance();
       stores_ = 0;
@@ -4259,6 +4273,7 @@ public final class HBaseProtos {
       totalStaticIndexSizeKB_ = 0;
       totalStaticBloomSizeKB_ = 0;
       coprocessors_ = java.util.Collections.emptyList();
+      completeSequenceId_ = 0L;
     }
     private byte memoizedIsInitialized = -1;
     public final boolean isInitialized() {
@@ -4331,6 +4346,9 @@ public final class HBaseProtos {
       for (int i = 0; i < coprocessors_.size(); i++) {
         output.writeMessage(15, coprocessors_.get(i));
       }
+      if (((bitField0_ & 0x00004000) == 0x00004000)) {
+        output.writeUInt64(16, completeSequenceId_);
+      }
       getUnknownFields().writeTo(output);
     }
     
@@ -4400,6 +4418,10 @@ public final class HBaseProtos {
         size += com.google.protobuf.CodedOutputStream
           .computeMessageSize(15, coprocessors_.get(i));
       }
+      if (((bitField0_ & 0x00004000) == 0x00004000)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeUInt64Size(16, completeSequenceId_);
+      }
       size += getUnknownFields().getSerializedSize();
       memoizedSerializedSize = size;
       return size;
@@ -4495,6 +4517,11 @@ public final class HBaseProtos {
       }
       result = result && getCoprocessorsList()
           .equals(other.getCoprocessorsList());
+      result = result && (hasCompleteSequenceId() == other.hasCompleteSequenceId());
+      if (hasCompleteSequenceId()) {
+        result = result && (getCompleteSequenceId()
+            == other.getCompleteSequenceId());
+      }
       result = result &&
           getUnknownFields().equals(other.getUnknownFields());
       return result;
@@ -4564,6 +4591,10 @@ public final class HBaseProtos {
         hash = (37 * hash) + COPROCESSORS_FIELD_NUMBER;
         hash = (53 * hash) + getCoprocessorsList().hashCode();
       }
+      if (hasCompleteSequenceId()) {
+        hash = (37 * hash) + COMPLETESEQUENCEID_FIELD_NUMBER;
+        hash = (53 * hash) + hashLong(getCompleteSequenceId());
+      }
       hash = (29 * hash) + getUnknownFields().hashCode();
       return hash;
     }
@@ -4720,6 +4751,8 @@ public final class HBaseProtos {
         } else {
           coprocessorsBuilder_.clear();
         }
+        completeSequenceId_ = 0L;
+        bitField0_ = (bitField0_ & ~0x00008000);
         return this;
       }
       
@@ -4827,6 +4860,10 @@ public final class HBaseProtos {
         } else {
           result.coprocessors_ = coprocessorsBuilder_.build();
         }
+        if (((from_bitField0_ & 0x00008000) == 0x00008000)) {
+          to_bitField0_ |= 0x00004000;
+        }
+        result.completeSequenceId_ = completeSequenceId_;
         result.bitField0_ = to_bitField0_;
         onBuilt();
         return result;
@@ -4911,6 +4948,9 @@ public final class HBaseProtos {
             }
           }
         }
+        if (other.hasCompleteSequenceId()) {
+          setCompleteSequenceId(other.getCompleteSequenceId());
+        }
         this.mergeUnknownFields(other.getUnknownFields());
         return this;
       }
@@ -5036,6 +5076,11 @@ public final class HBaseProtos {
               addCoprocessors(subBuilder.buildPartial());
               break;
             }
+            case 128: {
+              bitField0_ |= 0x00008000;
+              completeSequenceId_ = input.readUInt64();
+              break;
+            }
           }
         }
       }
@@ -5591,6 +5636,27 @@ public final class HBaseProtos {
         return coprocessorsBuilder_;
       }
       
+      // optional uint64 completeSequenceId = 16;
+      private long completeSequenceId_ ;
+      public boolean hasCompleteSequenceId() {
+        return ((bitField0_ & 0x00008000) == 0x00008000);
+      }
+      public long getCompleteSequenceId() {
+        return completeSequenceId_;
+      }
+      public Builder setCompleteSequenceId(long value) {
+        bitField0_ |= 0x00008000;
+        completeSequenceId_ = value;
+        onChanged();
+        return this;
+      }
+      public Builder clearCompleteSequenceId() {
+        bitField0_ = (bitField0_ & ~0x00008000);
+        completeSequenceId_ = 0L;
+        onChanged();
+        return this;
+      }
+      
       // @@protoc_insertion_point(builder_scope:RegionLoad)
     }
     
@@ -11091,7 +11157,7 @@ public final class HBaseProtos {
       "\0222\n\004type\030\001 \002(\0162$.RegionSpecifier.RegionS" +
       "pecifierType\022\r\n\005value\030\002 \002(\014\"?\n\023RegionSpe" +
       "cifierType\022\017\n\013REGION_NAME\020\001\022\027\n\023ENCODED_R" +
-      "EGION_NAME\020\002\"\270\003\n\nRegionLoad\022)\n\017regionSpe" +
+      "EGION_NAME\020\002\"\324\003\n\nRegionLoad\022)\n\017regionSpe" +
       "cifier\030\001 \002(\0132\020.RegionSpecifier\022\016\n\006stores" +
       "\030\002 \001(\r\022\022\n\nstorefiles\030\003 \001(\r\022\037\n\027storeUncom" +
       "pressedSizeMB\030\004 \001(\r\022\027\n\017storefileSizeMB\030\005" +
@@ -11102,31 +11168,31 @@ public final class HBaseProtos {
       "dKVs\030\013 \001(\004\022\027\n\017rootIndexSizeKB\030\014 \001(\r\022\036\n\026t" +
       "otalStaticIndexSizeKB\030\r \001(\r\022\036\n\026totalStat" +
       "icBloomSizeKB\030\016 \001(\r\022\"\n\014coprocessors\030\017 \003(" +
-      "\0132\014.Coprocessor\"\342\001\n\nServerLoad\022\030\n\020number" +
+      "\0132\014.Coprocessor\022\032\n\022completeSequenceId\030\020 " +
-      "OfRequests\030\001 \001(\r\022\035\n\025totalNumberOfRequest" +
+      "\001(\004\"\342\001\n\nServerLoad\022\030\n\020numberOfRequests\030\001" +
-      "s\030\002 \001(\r\022\022\n\nusedHeapMB\030\003 \001(\r\022\021\n\tmaxHeapMB" +
+      " \001(\r\022\035\n\025totalNumberOfRequests\030\002 \001(\r\022\022\n\nu" +
-      "\030\004 \001(\r\022 \n\013regionLoads\030\005 \003(\0132\013.RegionLoad" +
+      "sedHeapMB\030\003 \001(\r\022\021\n\tmaxHeapMB\030\004 \001(\r\022 \n\013re" +
-      "\022\"\n\014coprocessors\030\006 \003(\0132\014.Coprocessor\022\027\n\017",
+      "gionLoads\030\005 \003(\0132\013.RegionLoad\022\"\n\014coproces",
-      "reportStartTime\030\007 \001(\004\022\025\n\rreportEndTime\030\010" +
+      "sors\030\006 \003(\0132\014.Coprocessor\022\027\n\017reportStartT" +
-      " \001(\004\"%\n\tTimeRange\022\014\n\004from\030\001 \001(\004\022\n\n\002to\030\002 " +
+      "ime\030\007 \001(\004\022\025\n\rreportEndTime\030\010 \001(\004\"%\n\tTime" +
-      "\001(\004\"0\n\006Filter\022\014\n\004name\030\001 \002(\t\022\030\n\020serialize" +
+      "Range\022\014\n\004from\030\001 \001(\004\022\n\n\002to\030\002 \001(\004\"0\n\006Filte" +
-      "dFilter\030\002 \001(\014\"w\n\010KeyValue\022\013\n\003row\030\001 \002(\014\022\016" +
+      "r\022\014\n\004name\030\001 \002(\t\022\030\n\020serializedFilter\030\002 \001(" +
-      "\n\006family\030\002 \002(\014\022\021\n\tqualifier\030\003 \002(\014\022\021\n\ttim" +
+      "\014\"w\n\010KeyValue\022\013\n\003row\030\001 \002(\014\022\016\n\006family\030\002 \002" +
-      "estamp\030\004 \001(\004\022\031\n\007keyType\030\005 \001(\0162\010.KeyType\022" +
+      "(\014\022\021\n\tqualifier\030\003 \002(\014\022\021\n\ttimestamp\030\004 \001(\004" +
-      "\r\n\005value\030\006 \001(\014\"?\n\nServerName\022\020\n\010hostName" +
+      "\022\031\n\007keyType\030\005 \001(\0162\010.KeyType\022\r\n\005value\030\006 \001" +
-      "\030\001 \002(\t\022\014\n\004port\030\002 \001(\r\022\021\n\tstartCode\030\003 \001(\004\"" +
+      "(\014\"?\n\nServerName\022\020\n\010hostName\030\001 \002(\t\022\014\n\004po" +
-      "\033\n\013Coprocessor\022\014\n\004name\030\001 \002(\t\"-\n\016NameStri" +
+      "rt\030\002 \001(\r\022\021\n\tstartCode\030\003 \001(\004\"\033\n\013Coprocess" +
-      "ngPair\022\014\n\004name\030\001 \002(\t\022\r\n\005value\030\002 \002(\t\",\n\rN",
+      "or\022\014\n\004name\030\001 \002(\t\"-\n\016NameStringPair\022\014\n\004na",
-      "ameBytesPair\022\014\n\004name\030\001 \002(\t\022\r\n\005value\030\002 \001(" +
+      "me\030\001 \002(\t\022\r\n\005value\030\002 \002(\t\",\n\rNameBytesPair" +
-      "\014\"/\n\016BytesBytesPair\022\r\n\005first\030\001 \002(\014\022\016\n\006se" +
+      "\022\014\n\004name\030\001 \002(\t\022\r\n\005value\030\002 \001(\014\"/\n\016BytesBy" +
-      "cond\030\002 \002(\014*r\n\013CompareType\022\010\n\004LESS\020\000\022\021\n\rL" +
+      "tesPair\022\r\n\005first\030\001 \002(\014\022\016\n\006second\030\002 \002(\014*r" +
-      "ESS_OR_EQUAL\020\001\022\t\n\005EQUAL\020\002\022\r\n\tNOT_EQUAL\020\003" +
+      "\n\013CompareType\022\010\n\004LESS\020\000\022\021\n\rLESS_OR_EQUAL" +
-      "\022\024\n\020GREATER_OR_EQUAL\020\004\022\013\n\007GREATER\020\005\022\t\n\005N" +
+      "\020\001\022\t\n\005EQUAL\020\002\022\r\n\tNOT_EQUAL\020\003\022\024\n\020GREATER_" +
-      "O_OP\020\006*_\n\007KeyType\022\013\n\007MINIMUM\020\000\022\007\n\003PUT\020\004\022" +
+      "OR_EQUAL\020\004\022\013\n\007GREATER\020\005\022\t\n\005NO_OP\020\006*_\n\007Ke" +
-      "\n\n\006DELETE\020\010\022\021\n\rDELETE_COLUMN\020\014\022\021\n\rDELETE" +
+      "yType\022\013\n\007MINIMUM\020\000\022\007\n\003PUT\020\004\022\n\n\006DELETE\020\010\022" +
-      "_FAMILY\020\016\022\014\n\007MAXIMUM\020\377\001B>\n*org.apache.ha" +
+      "\021\n\rDELETE_COLUMN\020\014\022\021\n\rDELETE_FAMILY\020\016\022\014\n" +
-      "doop.hbase.protobuf.generatedB\013HBaseProt" +
+      "\007MAXIMUM\020\377\001B>\n*org.apache.hadoop.hbase.p" +
-      "osH\001\240\001\001"
+      "rotobuf.generatedB\013HBaseProtosH\001\240\001\001"
     };
     com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
       new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
@@ -11186,7 +11252,7 @@ public final class HBaseProtos {
           internal_static_RegionLoad_fieldAccessorTable = new
             com.google.protobuf.GeneratedMessage.FieldAccessorTable(
               internal_static_RegionLoad_descriptor,
-              new java.lang.String[] { "RegionSpecifier", "Stores", "Storefiles", "StoreUncompressedSizeMB", "StorefileSizeMB", "MemstoreSizeMB", "StorefileIndexSizeMB", "ReadRequestsCount", "WriteRequestsCount", "TotalCompactingKVs", "CurrentCompactedKVs", "RootIndexSizeKB", "TotalStaticIndexSizeKB", "TotalStaticBloomSizeKB", "Coprocessors", },
+              new java.lang.String[] { "RegionSpecifier", "Stores", "Storefiles", "StoreUncompressedSizeMB", "StorefileSizeMB", "MemstoreSizeMB", "StorefileIndexSizeMB", "ReadRequestsCount", "WriteRequestsCount", "TotalCompactingKVs", "CurrentCompactedKVs", "RootIndexSizeKB", "TotalStaticIndexSizeKB", "TotalStaticBloomSizeKB", "Coprocessors", "CompleteSequenceId", },
               org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.RegionLoad.class,
               org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.RegionLoad.Builder.class);
           internal_static_ServerLoad_descriptor =

hbase-server/src/main/java/org/apache/hadoop/hbase/protobuf/generated/RegionServerStatusProtos.java

@@ -2949,6 +2949,767 @@ public final class RegionServerStatusProtos {
     // @@protoc_insertion_point(class_scope:ReportRSFatalErrorResponse)
   }
   
+  public interface GetLastFlushedSequenceIdRequestOrBuilder
+      extends com.google.protobuf.MessageOrBuilder {
+    
+    // required bytes regionName = 1;
+    boolean hasRegionName();
+    com.google.protobuf.ByteString getRegionName();
+  }
+  public static final class GetLastFlushedSequenceIdRequest extends
+      com.google.protobuf.GeneratedMessage
+      implements GetLastFlushedSequenceIdRequestOrBuilder {
+    // Use GetLastFlushedSequenceIdRequest.newBuilder() to construct.
+    private GetLastFlushedSequenceIdRequest(Builder builder) {
+      super(builder);
+    }
+    private GetLastFlushedSequenceIdRequest(boolean noInit) {}
+    
+    private static final GetLastFlushedSequenceIdRequest defaultInstance;
+    public static GetLastFlushedSequenceIdRequest getDefaultInstance() {
+      return defaultInstance;
+    }
+    
+    public GetLastFlushedSequenceIdRequest getDefaultInstanceForType() {
+      return defaultInstance;
+    }
+    
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.internal_static_GetLastFlushedSequenceIdRequest_descriptor;
+    }
+    
+    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.internal_static_GetLastFlushedSequenceIdRequest_fieldAccessorTable;
+    }
+    
+    private int bitField0_;
+    // required bytes regionName = 1;
+    public static final int REGIONNAME_FIELD_NUMBER = 1;
+    private com.google.protobuf.ByteString regionName_;
+    public boolean hasRegionName() {
+      return ((bitField0_ & 0x00000001) == 0x00000001);
+    }
+    public com.google.protobuf.ByteString getRegionName() {
+      return regionName_;
+    }
+    
+    private void initFields() {
+      regionName_ = com.google.protobuf.ByteString.EMPTY;
+    }
+    private byte memoizedIsInitialized = -1;
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized != -1) return isInitialized == 1;
+      
+      if (!hasRegionName()) {
+        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.writeBytes(1, regionName_);
+      }
+      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
+          .computeBytesSize(1, regionName_);
+      }
+      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.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest)) {
+        return super.equals(obj);
+      }
+      org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest other = (org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest) obj;
+      
+      boolean result = true;
+      result = result && (hasRegionName() == other.hasRegionName());
+      if (hasRegionName()) {
+        result = result && getRegionName()
+            .equals(other.getRegionName());
+      }
+      result = result &&
+          getUnknownFields().equals(other.getUnknownFields());
+      return result;
+    }
+    
+    @java.lang.Override
+    public int hashCode() {
+      int hash = 41;
+      hash = (19 * hash) + getDescriptorForType().hashCode();
+      if (hasRegionName()) {
+        hash = (37 * hash) + REGIONNAME_FIELD_NUMBER;
+        hash = (53 * hash) + getRegionName().hashCode();
+      }
+      hash = (29 * hash) + getUnknownFields().hashCode();
+      return hash;
+    }
+    
+    public static org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data).buildParsed();
+    }
+    public static org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest 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.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data).buildParsed();
+    }
+    public static org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data, extensionRegistry)
+               .buildParsed();
+    }
+    public static org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input).buildParsed();
+    }
+    public static org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest 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.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest 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.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest 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.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input).buildParsed();
+    }
+    public static org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest 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.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest 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.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequestOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.internal_static_GetLastFlushedSequenceIdRequest_descriptor;
+      }
+      
+      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.internal_static_GetLastFlushedSequenceIdRequest_fieldAccessorTable;
+      }
+      
+      // Construct using org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+      
+      private Builder(BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
+        }
+      }
+      private static Builder create() {
+        return new Builder();
+      }
+      
+      public Builder clear() {
+        super.clear();
+        regionName_ = com.google.protobuf.ByteString.EMPTY;
+        bitField0_ = (bitField0_ & ~0x00000001);
+        return this;
+      }
+      
+      public Builder clone() {
+        return create().mergeFrom(buildPartial());
+      }
+      
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest.getDescriptor();
+      }
+      
+      public org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest getDefaultInstanceForType() {
+        return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest.getDefaultInstance();
+      }
+      
+      public org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest build() {
+        org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+      
+      private org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest buildParsed()
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(
+            result).asInvalidProtocolBufferException();
+        }
+        return result;
+      }
+      
+      public org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest buildPartial() {
+        org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest result = new org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest(this);
+        int from_bitField0_ = bitField0_;
+        int to_bitField0_ = 0;
+        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
+          to_bitField0_ |= 0x00000001;
+        }
+        result.regionName_ = regionName_;
+        result.bitField0_ = to_bitField0_;
+        onBuilt();
+        return result;
+      }
+      
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest) {
+          return mergeFrom((org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+      
+      public Builder mergeFrom(org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest other) {
+        if (other == org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest.getDefaultInstance()) return this;
+        if (other.hasRegionName()) {
+          setRegionName(other.getRegionName());
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        return this;
+      }
+      
+      public final boolean isInitialized() {
+        if (!hasRegionName()) {
+          
+          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: {
+              bitField0_ |= 0x00000001;
+              regionName_ = input.readBytes();
+              break;
+            }
+          }
+        }
+      }
+      
+      private int bitField0_;
+      
+      // required bytes regionName = 1;
+      private com.google.protobuf.ByteString regionName_ = com.google.protobuf.ByteString.EMPTY;
+      public boolean hasRegionName() {
+        return ((bitField0_ & 0x00000001) == 0x00000001);
+      }
+      public com.google.protobuf.ByteString getRegionName() {
+        return regionName_;
+      }
+      public Builder setRegionName(com.google.protobuf.ByteString value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  bitField0_ |= 0x00000001;
+        regionName_ = value;
+        onChanged();
+        return this;
+      }
+      public Builder clearRegionName() {
+        bitField0_ = (bitField0_ & ~0x00000001);
+        regionName_ = getDefaultInstance().getRegionName();
+        onChanged();
+        return this;
+      }
+      
+      // @@protoc_insertion_point(builder_scope:GetLastFlushedSequenceIdRequest)
+    }
+    
+    static {
+      defaultInstance = new GetLastFlushedSequenceIdRequest(true);
+      defaultInstance.initFields();
+    }
+    
+    // @@protoc_insertion_point(class_scope:GetLastFlushedSequenceIdRequest)
+  }
+  
+  public interface GetLastFlushedSequenceIdResponseOrBuilder
+      extends com.google.protobuf.MessageOrBuilder {
+    
+    // required uint64 lastFlushedSequenceId = 1;
+    boolean hasLastFlushedSequenceId();
+    long getLastFlushedSequenceId();
+  }
+  public static final class GetLastFlushedSequenceIdResponse extends
+      com.google.protobuf.GeneratedMessage
+      implements GetLastFlushedSequenceIdResponseOrBuilder {
+    // Use GetLastFlushedSequenceIdResponse.newBuilder() to construct.
+    private GetLastFlushedSequenceIdResponse(Builder builder) {
+      super(builder);
+    }
+    private GetLastFlushedSequenceIdResponse(boolean noInit) {}
+    
+    private static final GetLastFlushedSequenceIdResponse defaultInstance;
+    public static GetLastFlushedSequenceIdResponse getDefaultInstance() {
+      return defaultInstance;
+    }
+    
+    public GetLastFlushedSequenceIdResponse getDefaultInstanceForType() {
+      return defaultInstance;
+    }
+    
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.internal_static_GetLastFlushedSequenceIdResponse_descriptor;
+    }
+    
+    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.internal_static_GetLastFlushedSequenceIdResponse_fieldAccessorTable;
+    }
+    
+    private int bitField0_;
+    // required uint64 lastFlushedSequenceId = 1;
+    public static final int LASTFLUSHEDSEQUENCEID_FIELD_NUMBER = 1;
+    private long lastFlushedSequenceId_;
+    public boolean hasLastFlushedSequenceId() {
+      return ((bitField0_ & 0x00000001) == 0x00000001);
+    }
+    public long getLastFlushedSequenceId() {
+      return lastFlushedSequenceId_;
+    }
+    
+    private void initFields() {
+      lastFlushedSequenceId_ = 0L;
+    }
+    private byte memoizedIsInitialized = -1;
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized != -1) return isInitialized == 1;
+      
+      if (!hasLastFlushedSequenceId()) {
+        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.writeUInt64(1, lastFlushedSequenceId_);
+      }
+      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
+          .computeUInt64Size(1, lastFlushedSequenceId_);
+      }
+      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.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse)) {
+        return super.equals(obj);
+      }
+      org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse other = (org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse) obj;
+      
+      boolean result = true;
+      result = result && (hasLastFlushedSequenceId() == other.hasLastFlushedSequenceId());
+      if (hasLastFlushedSequenceId()) {
+        result = result && (getLastFlushedSequenceId()
+            == other.getLastFlushedSequenceId());
+      }
+      result = result &&
+          getUnknownFields().equals(other.getUnknownFields());
+      return result;
+    }
+    
+    @java.lang.Override
+    public int hashCode() {
+      int hash = 41;
+      hash = (19 * hash) + getDescriptorForType().hashCode();
+      if (hasLastFlushedSequenceId()) {
+        hash = (37 * hash) + LASTFLUSHEDSEQUENCEID_FIELD_NUMBER;
+        hash = (53 * hash) + hashLong(getLastFlushedSequenceId());
+      }
+      hash = (29 * hash) + getUnknownFields().hashCode();
+      return hash;
+    }
+    
+    public static org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data).buildParsed();
+    }
+    public static org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse 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.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data).buildParsed();
+    }
+    public static org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data, extensionRegistry)
+               .buildParsed();
+    }
+    public static org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input).buildParsed();
+    }
+    public static org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse 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.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse 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.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse 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.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return newBuilder().mergeFrom(input).buildParsed();
+    }
+    public static org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse 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.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse 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.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponseOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.internal_static_GetLastFlushedSequenceIdResponse_descriptor;
+      }
+      
+      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.internal_static_GetLastFlushedSequenceIdResponse_fieldAccessorTable;
+      }
+      
+      // Construct using org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+      
+      private Builder(BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
+        }
+      }
+      private static Builder create() {
+        return new Builder();
+      }
+      
+      public Builder clear() {
+        super.clear();
+        lastFlushedSequenceId_ = 0L;
+        bitField0_ = (bitField0_ & ~0x00000001);
+        return this;
+      }
+      
+      public Builder clone() {
+        return create().mergeFrom(buildPartial());
+      }
+      
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse.getDescriptor();
+      }
+      
+      public org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse getDefaultInstanceForType() {
+        return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse.getDefaultInstance();
+      }
+      
+      public org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse build() {
+        org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+      
+      private org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse buildParsed()
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(
+            result).asInvalidProtocolBufferException();
+        }
+        return result;
+      }
+      
+      public org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse buildPartial() {
+        org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse result = new org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse(this);
+        int from_bitField0_ = bitField0_;
+        int to_bitField0_ = 0;
+        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
+          to_bitField0_ |= 0x00000001;
+        }
+        result.lastFlushedSequenceId_ = lastFlushedSequenceId_;
+        result.bitField0_ = to_bitField0_;
+        onBuilt();
+        return result;
+      }
+      
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse) {
+          return mergeFrom((org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+      
+      public Builder mergeFrom(org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse other) {
+        if (other == org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse.getDefaultInstance()) return this;
+        if (other.hasLastFlushedSequenceId()) {
+          setLastFlushedSequenceId(other.getLastFlushedSequenceId());
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        return this;
+      }
+      
+      public final boolean isInitialized() {
+        if (!hasLastFlushedSequenceId()) {
+          
+          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: {
+              bitField0_ |= 0x00000001;
+              lastFlushedSequenceId_ = input.readUInt64();
+              break;
+            }
+          }
+        }
+      }
+      
+      private int bitField0_;
+      
+      // required uint64 lastFlushedSequenceId = 1;
+      private long lastFlushedSequenceId_ ;
+      public boolean hasLastFlushedSequenceId() {
+        return ((bitField0_ & 0x00000001) == 0x00000001);
+      }
+      public long getLastFlushedSequenceId() {
+        return lastFlushedSequenceId_;
+      }
+      public Builder setLastFlushedSequenceId(long value) {
+        bitField0_ |= 0x00000001;
+        lastFlushedSequenceId_ = value;
+        onChanged();
+        return this;
+      }
+      public Builder clearLastFlushedSequenceId() {
+        bitField0_ = (bitField0_ & ~0x00000001);
+        lastFlushedSequenceId_ = 0L;
+        onChanged();
+        return this;
+      }
+      
+      // @@protoc_insertion_point(builder_scope:GetLastFlushedSequenceIdResponse)
+    }
+    
+    static {
+      defaultInstance = new GetLastFlushedSequenceIdResponse(true);
+      defaultInstance.initFields();
+    }
+    
+    // @@protoc_insertion_point(class_scope:GetLastFlushedSequenceIdResponse)
+  }
+  
   public static abstract class RegionServerStatusService
       implements com.google.protobuf.Service {
     protected RegionServerStatusService() {}
@@ -2969,6 +3730,11 @@ public final class RegionServerStatusProtos {
           org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.ReportRSFatalErrorRequest request,
           com.google.protobuf.RpcCallback<org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.ReportRSFatalErrorResponse> done);
       
+      public abstract void getLastFlushedSequenceId(
+          com.google.protobuf.RpcController controller,
+          org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest request,
+          com.google.protobuf.RpcCallback<org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse> done);
+      
     }
     
     public static com.google.protobuf.Service newReflectiveService(
@@ -2998,6 +3764,14 @@ public final class RegionServerStatusProtos {
           impl.reportRSFatalError(controller, request, done);
         }
         
+        @java.lang.Override
+        public  void getLastFlushedSequenceId(
+            com.google.protobuf.RpcController controller,
+            org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest request,
+            com.google.protobuf.RpcCallback<org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse> done) {
+          impl.getLastFlushedSequenceId(controller, request, done);
+        }
+        
       };
     }
     
@@ -3026,6 +3800,8 @@ public final class RegionServerStatusProtos {
               return impl.regionServerReport(controller, (org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.RegionServerReportRequest)request);
             case 2:
               return impl.reportRSFatalError(controller, (org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.ReportRSFatalErrorRequest)request);
+            case 3:
+              return impl.getLastFlushedSequenceId(controller, (org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest)request);
             default:
               throw new java.lang.AssertionError("Can't get here.");
           }
@@ -3046,6 +3822,8 @@ public final class RegionServerStatusProtos {
               return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.RegionServerReportRequest.getDefaultInstance();
             case 2:
               return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.ReportRSFatalErrorRequest.getDefaultInstance();
+            case 3:
+              return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest.getDefaultInstance();
             default:
               throw new java.lang.AssertionError("Can't get here.");
           }
@@ -3066,6 +3844,8 @@ public final class RegionServerStatusProtos {
               return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.RegionServerReportResponse.getDefaultInstance();
             case 2:
               return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.ReportRSFatalErrorResponse.getDefaultInstance();
+            case 3:
+              return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse.getDefaultInstance();
             default:
               throw new java.lang.AssertionError("Can't get here.");
           }
@@ -3089,6 +3869,11 @@ public final class RegionServerStatusProtos {
         org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.ReportRSFatalErrorRequest request,
         com.google.protobuf.RpcCallback<org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.ReportRSFatalErrorResponse> done);
     
+    public abstract void getLastFlushedSequenceId(
+        com.google.protobuf.RpcController controller,
+        org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest request,
+        com.google.protobuf.RpcCallback<org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse> done);
+    
     public static final
         com.google.protobuf.Descriptors.ServiceDescriptor
         getDescriptor() {
@@ -3126,6 +3911,11 @@ public final class RegionServerStatusProtos {
             com.google.protobuf.RpcUtil.<org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.ReportRSFatalErrorResponse>specializeCallback(
               done));
           return;
+        case 3:
+          this.getLastFlushedSequenceId(controller, (org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest)request,
+            com.google.protobuf.RpcUtil.<org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse>specializeCallback(
+              done));
+          return;
         default:
           throw new java.lang.AssertionError("Can't get here.");
       }
@@ -3146,6 +3936,8 @@ public final class RegionServerStatusProtos {
           return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.RegionServerReportRequest.getDefaultInstance();
         case 2:
           return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.ReportRSFatalErrorRequest.getDefaultInstance();
+        case 3:
+          return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest.getDefaultInstance();
         default:
           throw new java.lang.AssertionError("Can't get here.");
       }
@@ -3166,6 +3958,8 @@ public final class RegionServerStatusProtos {
           return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.RegionServerReportResponse.getDefaultInstance();
         case 2:
           return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.ReportRSFatalErrorResponse.getDefaultInstance();
+        case 3:
+          return org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse.getDefaultInstance();
         default:
           throw new java.lang.AssertionError("Can't get here.");
       }
@@ -3231,6 +4025,21 @@ public final class RegionServerStatusProtos {
             org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.ReportRSFatalErrorResponse.class,
             org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.ReportRSFatalErrorResponse.getDefaultInstance()));
       }
+      
+      public  void getLastFlushedSequenceId(
+          com.google.protobuf.RpcController controller,
+          org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest request,
+          com.google.protobuf.RpcCallback<org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse> done) {
+        channel.callMethod(
+          getDescriptor().getMethods().get(3),
+          controller,
+          request,
+          org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse.getDefaultInstance(),
+          com.google.protobuf.RpcUtil.generalizeCallback(
+            done,
+            org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse.class,
+            org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse.getDefaultInstance()));
+      }
     }
     
     public static BlockingInterface newBlockingStub(
@@ -3253,6 +4062,11 @@ public final class RegionServerStatusProtos {
           com.google.protobuf.RpcController controller,
           org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.ReportRSFatalErrorRequest request)
           throws com.google.protobuf.ServiceException;
+      
+      public org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse getLastFlushedSequenceId(
+          com.google.protobuf.RpcController controller,
+          org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest request)
+          throws com.google.protobuf.ServiceException;
     }
     
     private static final class BlockingStub implements BlockingInterface {
@@ -3297,6 +4111,18 @@ public final class RegionServerStatusProtos {
           org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.ReportRSFatalErrorResponse.getDefaultInstance());
       }
       
+      
+      public org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse getLastFlushedSequenceId(
+          com.google.protobuf.RpcController controller,
+          org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest request)
+          throws com.google.protobuf.ServiceException {
+        return (org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse) channel.callBlockingMethod(
+          getDescriptor().getMethods().get(3),
+          controller,
+          request,
+          org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse.getDefaultInstance());
+      }
+      
     }
   }
   
@@ -3330,6 +4156,16 @@ public final class RegionServerStatusProtos {
   private static
     com.google.protobuf.GeneratedMessage.FieldAccessorTable
       internal_static_ReportRSFatalErrorResponse_fieldAccessorTable;
+  private static com.google.protobuf.Descriptors.Descriptor
+    internal_static_GetLastFlushedSequenceIdRequest_descriptor;
+  private static
+    com.google.protobuf.GeneratedMessage.FieldAccessorTable
+      internal_static_GetLastFlushedSequenceIdRequest_fieldAccessorTable;
+  private static com.google.protobuf.Descriptors.Descriptor
+    internal_static_GetLastFlushedSequenceIdResponse_descriptor;
+  private static
+    com.google.protobuf.GeneratedMessage.FieldAccessorTable
+      internal_static_GetLastFlushedSequenceIdResponse_fieldAccessorTable;
   
   public static com.google.protobuf.Descriptors.FileDescriptor
       getDescriptor() {
@@ -3349,16 +4185,21 @@ public final class RegionServerStatusProtos {
       "rverLoad\"\034\n\032RegionServerReportResponse\"N" +
       "\n\031ReportRSFatalErrorRequest\022\033\n\006server\030\001 " +
       "\002(\0132\013.ServerName\022\024\n\014errorMessage\030\002 \002(\t\"\034",
-      "\n\032ReportRSFatalErrorResponse2\213\002\n\031RegionS" +
+      "\n\032ReportRSFatalErrorResponse\"5\n\037GetLastF" +
-      "erverStatusService\022P\n\023regionServerStartu" +
+      "lushedSequenceIdRequest\022\022\n\nregionName\030\001 " +
-      "p\022\033.RegionServerStartupRequest\032\034.RegionS" +
+      "\002(\014\"A\n GetLastFlushedSequenceIdResponse\022" +
-      "erverStartupResponse\022M\n\022regionServerRepo" +
+      "\035\n\025lastFlushedSequenceId\030\001 \002(\0042\354\002\n\031Regio" +
-      "rt\022\032.RegionServerReportRequest\032\033.RegionS" +
+      "nServerStatusService\022P\n\023regionServerStar" +
-      "erverReportResponse\022M\n\022reportRSFatalErro" +
+      "tup\022\033.RegionServerStartupRequest\032\034.Regio" +
-      "r\022\032.ReportRSFatalErrorRequest\032\033.ReportRS" +
+      "nServerStartupResponse\022M\n\022regionServerRe" +
-      "FatalErrorResponseBN\n*org.apache.hadoop." +
+      "port\022\032.RegionServerReportRequest\032\033.Regio" +
-      "hbase.protobuf.generatedB\030RegionServerSt" +
+      "nServerReportResponse\022M\n\022reportRSFatalEr" +
-      "atusProtosH\001\210\001\001\240\001\001"
+      "ror\022\032.ReportRSFatalErrorRequest\032\033.Report",
+      "RSFatalErrorResponse\022_\n\030getLastFlushedSe" +
+      "quenceId\022 .GetLastFlushedSequenceIdReque" +
+      "st\032!.GetLastFlushedSequenceIdResponseBN\n" +
+      "*org.apache.hadoop.hbase.protobuf.genera" +
+      "tedB\030RegionServerStatusProtosH\001\210\001\001\240\001\001"
     };
     com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
       new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
@@ -3413,6 +4254,22 @@ public final class RegionServerStatusProtos {
               new java.lang.String[] { },
               org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.ReportRSFatalErrorResponse.class,
               org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.ReportRSFatalErrorResponse.Builder.class);
+          internal_static_GetLastFlushedSequenceIdRequest_descriptor =
+            getDescriptor().getMessageTypes().get(6);
+          internal_static_GetLastFlushedSequenceIdRequest_fieldAccessorTable = new
+            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
+              internal_static_GetLastFlushedSequenceIdRequest_descriptor,
+              new java.lang.String[] { "RegionName", },
+              org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest.class,
+              org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest.Builder.class);
+          internal_static_GetLastFlushedSequenceIdResponse_descriptor =
+            getDescriptor().getMessageTypes().get(7);
+          internal_static_GetLastFlushedSequenceIdResponse_fieldAccessorTable = new
+            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
+              internal_static_GetLastFlushedSequenceIdResponse_descriptor,
+              new java.lang.String[] { "LastFlushedSequenceId", },
+              org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse.class,
+              org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdResponse.Builder.class);
           return null;
         }
       };

hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java

@@ -79,6 +79,7 @@ import org.apache.hadoop.hbase.HConstants;
 import org.apache.hadoop.hbase.HConstants.OperationStatusCode;
 import org.apache.hadoop.hbase.HDFSBlocksDistribution;
 import org.apache.hadoop.hbase.HRegionInfo;
+import org.apache.hadoop.hbase.HServerInfo;
 import org.apache.hadoop.hbase.HTableDescriptor;
 import org.apache.hadoop.hbase.KeyValue;
 import org.apache.hadoop.hbase.NotServingRegionException;
@@ -190,6 +191,8 @@ public class HRegion implements HeapSize { // , Writable{
    */
   final AtomicBoolean closing = new AtomicBoolean(false);
 
+  protected long completeSequenceId = -1L;
+
   //////////////////////////////////////////////////////////////////////////////
   // Members
   //////////////////////////////////////////////////////////////////////////////
@@ -1478,7 +1481,6 @@ public class HRegion implements HeapSize { // , Writable{
     // again so its value will represent the size of the updates received
     // during the flush
     long sequenceId = -1L;
-    long completeSequenceId = -1L;
     MultiVersionConsistencyControl.WriteEntry w = null;
 
     // We have to take a write lock during snapshot, or else a write could
@@ -1489,6 +1491,7 @@ public class HRegion implements HeapSize { // , Writable{
     long flushsize = this.memstoreSize.get();
     status.setStatus("Preparing to flush by snapshotting stores");
     List<StoreFlusher> storeFlushers = new ArrayList<StoreFlusher>(stores.size());
+    long completeSeqId = -1L;
     try {
       // Record the mvcc for all transactions in progress.
       w = mvcc.beginMemstoreInsert();
@@ -1496,10 +1499,9 @@ public class HRegion implements HeapSize { // , Writable{
 
       sequenceId = (wal == null)? myseqid:
         wal.startCacheFlush(this.regionInfo.getEncodedNameAsBytes());
-      completeSequenceId = this.getCompleteCacheFlushSequenceId(sequenceId);
+      completeSeqId = this.getCompleteCacheFlushSequenceId(sequenceId);
-
       for (Store s : stores.values()) {
-        storeFlushers.add(s.getStoreFlusher(completeSequenceId));
+        storeFlushers.add(s.getStoreFlusher(completeSeqId));
       }
 
       // prepare flush (take a snapshot)
@@ -1577,10 +1579,15 @@ public class HRegion implements HeapSize { // , Writable{
     //     log-sequence-ids can be safely ignored.
     if (wal != null) {
       wal.completeCacheFlush(this.regionInfo.getEncodedNameAsBytes(),
-        regionInfo.getTableName(), completeSequenceId,
+        regionInfo.getTableName(), completeSeqId,
         this.getRegionInfo().isMetaRegion());
     }
 
+    // Update the last flushed sequence id for region
+    if (this.rsServices != null) {
+      completeSequenceId = completeSeqId;
+    }
+
     // C. Finally notify anyone waiting on memstore to clear:
     // e.g. checkResources().
     synchronized (this) {
@@ -5010,7 +5017,7 @@ public class HRegion implements HeapSize { // , Writable{
       ClassSize.OBJECT +
       ClassSize.ARRAY +
       36 * ClassSize.REFERENCE + Bytes.SIZEOF_INT +
-      (6 * Bytes.SIZEOF_LONG) +
+      (7 * Bytes.SIZEOF_LONG) +
       Bytes.SIZEOF_BOOLEAN);
 
   public static final long DEEP_OVERHEAD = FIXED_OVERHEAD +

hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java

@@ -49,6 +49,7 @@ import java.util.concurrent.ConcurrentMap;
 import java.util.concurrent.ConcurrentSkipListMap;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicReference;
 import java.util.concurrent.locks.ReentrantReadWriteLock;
 
 import javax.management.ObjectName;
@@ -114,6 +115,7 @@ import org.apache.hadoop.hbase.ipc.ProtocolSignature;
 import org.apache.hadoop.hbase.ipc.RpcServer;
 import org.apache.hadoop.hbase.ipc.ServerNotRunningYetException;
 import org.apache.hadoop.hbase.protobuf.ProtobufUtil;
+import org.apache.hadoop.hbase.protobuf.RequestConverter;
 import org.apache.hadoop.hbase.protobuf.ResponseConverter;
 import org.apache.hadoop.hbase.protobuf.generated.AdminProtos.CloseRegionRequest;
 import org.apache.hadoop.hbase.protobuf.generated.AdminProtos.CloseRegionResponse;
@@ -214,6 +216,7 @@ import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos;
 import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.Coprocessor;
 import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.RegionLoad;
 import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.NameStringPair;
+import org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest;
 import org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.RegionServerReportRequest;
 import org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.ReportRSFatalErrorRequest;
 import org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.RegionServerStartupRequest;
@@ -232,7 +235,7 @@ import com.google.protobuf.RpcController;
 @InterfaceAudience.Private
 @SuppressWarnings("deprecation")
 public class  HRegionServer implements ClientProtocol,
-    AdminProtocol, Runnable, RegionServerServices, HBaseRPCErrorHandler {
+    AdminProtocol, Runnable, RegionServerServices, HBaseRPCErrorHandler, LastSequenceId {
 
   public static final Log LOG = LogFactory.getLog(HRegionServer.class);
 
@@ -1248,7 +1251,8 @@ public class  HRegionServer implements ClientProtocol,
       .setReadRequestsCount((int) r.readRequestsCount.get())
       .setWriteRequestsCount((int) r.writeRequestsCount.get())
       .setTotalCompactingKVs(totalCompactingKVs)
-      .setCurrentCompactedKVs(currentCompactedKVs);
+      .setCurrentCompactedKVs(currentCompactedKVs)
+      .setCompleteSequenceId(r.completeSequenceId);
     Set<String> coprocessors = r.getCoprocessorHost().getCoprocessors();
     for (String coprocessor : coprocessors) {
       regionLoad.addCoprocessors(
@@ -1622,7 +1626,7 @@ public class  HRegionServer implements ClientProtocol,
 
     // Create the log splitting worker and start it
     this.splitLogWorker = new SplitLogWorker(this.zooKeeper,
-        this.getConfiguration(), this.getServerName());
+        this.getConfiguration(), this.getServerName(), this);
     splitLogWorker.start();
   }
 
@@ -1969,6 +1973,22 @@ public class  HRegionServer implements ClientProtocol,
     return result;
   }
 
+  @Override
+  public long getLastSequenceId(byte[] region) {
+    Long lastFlushedSequenceId = -1l;
+    try {
+      GetLastFlushedSequenceIdRequest req =
+        RequestConverter.buildGetLastFlushedSequenceIdRequest(region);
+      lastFlushedSequenceId = hbaseMaster.getLastFlushedSequenceId(null, req)
+      .getLastFlushedSequenceId();
+    } catch (ServiceException e) {
+      lastFlushedSequenceId = -1l;
+      LOG.warn("Unable to connect to the master to check " +
+          "the last flushed sequence id", e);
+    }
+    return lastFlushedSequenceId;
+  }
+
   /**
    * Closes all regions.  Called on our way out.
    * Assumes that its not possible for new regions to be added to onlineRegions

hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/LastSequenceId.java

@@ -0,0 +1,33 @@
+/**
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.hbase.regionserver;
+
+import org.apache.hadoop.classification.InterfaceAudience;
+
+/**
+ * Last flushed sequence Ids for the regions on region server
+ */
+@InterfaceAudience.Private
+public interface LastSequenceId {
+  /**
+   * @param regionname
+   * @return Last flushed sequence Id for regionname
+   */
+  public long getLastSequenceId(byte[] regionname);
+}

hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/SplitLogWorker.java

@@ -30,9 +30,11 @@ import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.hbase.DeserializationException;
+import org.apache.hadoop.hbase.RegionServerStatusProtocol;
 import org.apache.hadoop.hbase.ServerName;
 import org.apache.hadoop.hbase.SplitLogCounters;
 import org.apache.hadoop.hbase.SplitLogTask;
+import org.apache.hadoop.hbase.master.SplitLogManager;
 import org.apache.hadoop.hbase.regionserver.wal.HLogSplitter;
 import org.apache.hadoop.hbase.util.CancelableProgressable;
 import org.apache.hadoop.hbase.util.FSUtils;
@@ -90,7 +92,7 @@ public class SplitLogWorker extends ZooKeeperListener implements Runnable {
   }
 
   public SplitLogWorker(ZooKeeperWatcher watcher, final Configuration conf,
-      final ServerName serverName) {
+      final ServerName serverName, final LastSequenceId sequenceIdChecker) {
     this(watcher, conf, serverName, new TaskExecutor () {
       @Override
       public Status exec(String filename, CancelableProgressable p) {
@@ -108,7 +110,7 @@ public class SplitLogWorker extends ZooKeeperListener implements Runnable {
         // encountered a bad non-retry-able persistent error.
         try {
           if (HLogSplitter.splitLogFile(rootdir,
-              fs.getFileStatus(new Path(filename)), fs, conf, p) == false) {
+              fs.getFileStatus(new Path(filename)), fs, conf, p, sequenceIdChecker) == false) {
             return Status.PREEMPTED;
           }
         } catch (InterruptedIOException iioe) {

hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogSplitter.java

@@ -56,7 +56,9 @@ import org.apache.hadoop.hbase.io.HeapSize;
 import org.apache.hadoop.hbase.master.SplitLogManager;
 import org.apache.hadoop.hbase.monitoring.MonitoredTask;
 import org.apache.hadoop.hbase.monitoring.TaskMonitor;
+import org.apache.hadoop.hbase.protobuf.RequestConverter;
 import org.apache.hadoop.hbase.regionserver.HRegion;
+import org.apache.hadoop.hbase.regionserver.LastSequenceId;
 import org.apache.hadoop.hbase.regionserver.wal.HLog.Entry;
 import org.apache.hadoop.hbase.regionserver.wal.HLog.Reader;
 import org.apache.hadoop.hbase.regionserver.wal.HLog.Writer;
@@ -120,6 +122,8 @@ public class HLogSplitter {
   // Used in distributed log splitting
   private DistributedLogSplittingHelper distributedLogSplittingHelper = null;
 
+  // For checking the latest flushed sequence id
+  protected final LastSequenceId sequenceIdChecker;
 
   /**
    * Create a new HLogSplitter using the given {@link Configuration} and the
@@ -147,8 +151,9 @@ public class HLogSplitter {
           Path.class, // rootDir
           Path.class, // srcDir
           Path.class, // oldLogDir
-          FileSystem.class); // fs
+          FileSystem.class, // fs
-      return constructor.newInstance(conf, rootDir, srcDir, oldLogDir, fs);
+          LastSequenceId.class);
+      return constructor.newInstance(conf, rootDir, srcDir, oldLogDir, fs, null);
     } catch (IllegalArgumentException e) {
       throw new RuntimeException(e);
     } catch (InstantiationException e) {
@@ -165,12 +170,13 @@ public class HLogSplitter {
   }
 
   public HLogSplitter(Configuration conf, Path rootDir, Path srcDir,
-      Path oldLogDir, FileSystem fs) {
+      Path oldLogDir, FileSystem fs, LastSequenceId idChecker) {
     this.conf = conf;
     this.rootDir = rootDir;
     this.srcDir = srcDir;
     this.oldLogDir = oldLogDir;
     this.fs = fs;
+    this.sequenceIdChecker = idChecker;
 
     entryBuffers = new EntryBuffers(
         conf.getInt("hbase.regionserver.hlog.splitlog.buffersize",
@@ -344,6 +350,29 @@ public class HLogSplitter {
     return ret;
   }
 
+  /**
+   * Splits a HLog file into region's recovered-edits directory
+   * <p>
+   * If the log file has N regions then N recovered.edits files will be
+   * produced.
+   * <p>
+   * @param rootDir
+   * @param logfile
+   * @param fs
+   * @param conf
+   * @param reporter
+   * @param idChecker
+   * @return false if it is interrupted by the progress-able.
+   * @throws IOException
+   */
+  static public boolean splitLogFile(Path rootDir, FileStatus logfile,
+      FileSystem fs, Configuration conf, CancelableProgressable reporter,
+      LastSequenceId idChecker)
+      throws IOException {
+    HLogSplitter s = new HLogSplitter(conf, rootDir, null, null /* oldLogDir */, fs, idChecker);
+    return s.splitLogFile(logfile, reporter);
+  }
+
   /**
    * Splits a HLog file into region's recovered-edits directory
    * <p>
@@ -361,8 +390,7 @@ public class HLogSplitter {
   static public boolean splitLogFile(Path rootDir, FileStatus logfile,
       FileSystem fs, Configuration conf, CancelableProgressable reporter)
       throws IOException {
-    HLogSplitter s = new HLogSplitter(conf, rootDir, null, null /* oldLogDir */, fs);
+    return HLogSplitter.splitLogFile(rootDir, logfile, fs, conf, reporter, null);
-    return s.splitLogFile(logfile, reporter);
   }
 
   public boolean splitLogFile(FileStatus logfile,
@@ -402,17 +430,34 @@ public class HLogSplitter {
     outputSink.startWriterThreads();
     // Report progress every so many edits and/or files opened (opening a file
     // takes a bit of time).
-    int editsCount = 0;
+    Map<byte[], Long> lastFlushedSequenceIds =
+      new TreeMap<byte[], Long>(Bytes.BYTES_COMPARATOR);
     Entry entry;
+    int editsCount = 0;
+    int editsSkipped = 0;
     try {
       while ((entry = getNextLogLine(in,logPath, skipErrors)) != null) {
+        byte[] region = entry.getKey().getEncodedRegionName();
+        Long lastFlushedSequenceId = -1l;
+        if (sequenceIdChecker != null) {
+          lastFlushedSequenceId = lastFlushedSequenceIds.get(region);
+          if (lastFlushedSequenceId == null) {
+              lastFlushedSequenceId = sequenceIdChecker.getLastSequenceId(region);
+              lastFlushedSequenceIds.put(region, lastFlushedSequenceId);
+          }
+        }
+        if (lastFlushedSequenceId >= entry.getKey().getLogSeqNum()) {
+          editsSkipped++;
+          continue;
+        }
         entryBuffers.appendEntry(entry);
         editsCount++;
         // If sufficient edits have passed, check if we should report progress.
         if (editsCount % interval == 0
             || (outputSink.logWriters.size() - numOpenedFilesLastCheck) > numOpenedFilesBeforeReporting) {
           numOpenedFilesLastCheck = outputSink.logWriters.size();
-          String countsStr = "edits=" + editsCount;
+          String countsStr = (editsCount - editsSkipped) +
+            " edits, skipped " + editsSkipped + " edits.";
           status.setStatus("Split " + countsStr);
           if (!reportProgressIfIsDistributedLogSplitting()) {
             return false;

hbase-server/src/main/protobuf/RegionServerStatus.proto

@@ -67,6 +67,16 @@ message ReportRSFatalErrorRequest {
 message ReportRSFatalErrorResponse {
 }
 
+message GetLastFlushedSequenceIdRequest {
+  /** region name */
+  required bytes regionName = 1;
+}
+
+message GetLastFlushedSequenceIdResponse {
+  /** the last HLog sequence id flushed from MemStore to HFile for the region */
+  required uint64 lastFlushedSequenceId = 1;
+}
+
 service RegionServerStatusService {
   /** Called when a region server first starts. */
   rpc regionServerStartup(RegionServerStartupRequest)
@@ -82,4 +92,10 @@ service RegionServerStatusService {
    */
   rpc reportRSFatalError(ReportRSFatalErrorRequest)
     returns(ReportRSFatalErrorResponse);
+
+  /** Called to get the sequence id of the last MemStore entry flushed to an
+   * HFile for a specified region. Used by the region server to speed up
+   * log splitting. */
+  rpc getLastFlushedSequenceId(GetLastFlushedSequenceIdRequest)
+    returns(GetLastFlushedSequenceIdResponse);
 }

hbase-server/src/main/protobuf/hbase.proto

@@ -132,6 +132,9 @@ message RegionLoad {
 
   /** Region-level coprocessors. */
   repeated Coprocessor coprocessors = 15;
+
+  /** the most recent sequence Id from cache flush */
+  optional uint64 completeSequenceId = 16;
 }
 
 /* Server-level protobufs */

hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestHLogFiltering.java

@@ -0,0 +1,157 @@
+/**
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.hbase.regionserver.wal;
+
+import static junit.framework.Assert.assertEquals;
+
+import java.io.IOException;
+import java.util.List;
+import java.util.Random;
+import java.util.SortedMap;
+import java.util.TreeMap;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.MediumTests;
+import org.apache.hadoop.hbase.client.Delete;
+import org.apache.hadoop.hbase.client.HTable;
+import org.apache.hadoop.hbase.client.Put;
+import org.apache.hadoop.hbase.master.HMaster;
+import org.apache.hadoop.hbase.protobuf.RequestConverter;
+import org.apache.hadoop.hbase.protobuf.generated.AdminProtos.FlushRegionRequest;
+import org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.GetLastFlushedSequenceIdRequest;
+import org.apache.hadoop.hbase.regionserver.HRegion;
+import org.apache.hadoop.hbase.regionserver.HRegionServer;
+import org.apache.hadoop.hbase.util.Bytes;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+import com.google.common.collect.Lists;
+import com.google.protobuf.ServiceException;
+
+@Category(MediumTests.class)
+public class TestHLogFiltering {
+  private static final Log LOG = LogFactory.getLog(TestHLogFiltering.class);
+
+  private static final int NUM_MASTERS = 1;
+  private static final int NUM_RS = 4;
+
+  private static final byte[] TABLE_NAME = Bytes.toBytes("TestHLogFiltering");
+  private static final byte[] CF1 = Bytes.toBytes("MyCF1");
+  private static final byte[] CF2 = Bytes.toBytes("MyCF2");
+  private static final byte[][] FAMILIES = { CF1, CF2 };
+
+  private HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
+
+  @Before
+  public void setUp() throws Exception {
+    TEST_UTIL.startMiniCluster(NUM_MASTERS, NUM_RS);
+    fillTable();
+  }
+
+  @After
+  public void tearDown() throws Exception {
+    TEST_UTIL.shutdownMiniCluster();
+  }
+
+  private void fillTable() throws IOException, InterruptedException {
+    HTable table = TEST_UTIL.createTable(TABLE_NAME, FAMILIES, 3,
+        Bytes.toBytes("row0"), Bytes.toBytes("row99"), NUM_RS);
+    Random rand = new Random(19387129L);
+    for (int iStoreFile = 0; iStoreFile < 4; ++iStoreFile) {
+      for (int iRow = 0; iRow < 100; ++iRow) {
+        final byte[] row = Bytes.toBytes("row" + iRow);
+        Put put = new Put(row);
+        Delete del = new Delete(row);
+        for (int iCol = 0; iCol < 10; ++iCol) {
+          final byte[] cf = rand.nextBoolean() ? CF1 : CF2;
+          final long ts = rand.nextInt();
+          final byte[] qual = Bytes.toBytes("col" + iCol);
+          if (rand.nextBoolean()) {
+            final byte[] value = Bytes.toBytes("value_for_row_" + iRow +
+                "_cf_" + Bytes.toStringBinary(cf) + "_col_" + iCol + "_ts_" +
+                ts + "_random_" + rand.nextLong());
+            put.add(cf, qual, ts, value);
+          } else if (rand.nextDouble() < 0.8) {
+            del.deleteColumn(cf, qual, ts);
+          } else {
+            del.deleteColumns(cf, qual, ts);
+          }
+        }
+        table.put(put);
+        table.delete(del);
+        table.flushCommits();
+      }
+    }
+    TEST_UTIL.waitUntilAllRegionsAssigned(NUM_RS);
+  }
+
+  @Test
+  public void testFlushedSequenceIdsSentToHMaster()
+  throws IOException, InterruptedException, ServiceException {
+    SortedMap<byte[], Long> allFlushedSequenceIds =
+        new TreeMap<byte[], Long>(Bytes.BYTES_COMPARATOR);
+    for (int i = 0; i < NUM_RS; ++i) {
+      flushAllRegions(i);
+    }
+    Thread.sleep(10000);
+    HMaster master = TEST_UTIL.getMiniHBaseCluster().getMaster();
+    for (int i = 0; i < NUM_RS; ++i) {
+      for (byte[] regionName : getRegionsByServer(i)) {
+        if (allFlushedSequenceIds.containsKey(regionName)) {
+          GetLastFlushedSequenceIdRequest req =
+            RequestConverter.buildGetLastFlushedSequenceIdRequest(regionName);
+
+          assertEquals((long)allFlushedSequenceIds.get(regionName),
+              master.getLastFlushedSequenceId(null, req).getLastFlushedSequenceId());
+        }
+      }
+    }
+  }
+
+  private List<byte[]> getRegionsByServer(int rsId) throws IOException {
+    List<byte[]> regionNames = Lists.newArrayList();
+    HRegionServer hrs = getRegionServer(rsId);
+    for (HRegion r : hrs.getOnlineRegions(TABLE_NAME)) {
+      regionNames.add(r.getRegionName());
+    }
+    return regionNames;
+  }
+
+  private HRegionServer getRegionServer(int rsId) {
+    return TEST_UTIL.getMiniHBaseCluster().getRegionServer(rsId);
+  }
+
+  private void flushAllRegions(int rsId)
+  throws ServiceException, IOException {
+    HRegionServer hrs = getRegionServer(rsId);
+    for (byte[] regionName : getRegionsByServer(rsId)) {
+      FlushRegionRequest request =
+        RequestConverter.buildFlushRegionRequest(regionName);
+      hrs.flushRegion(null, request);
+    }
+  }
+
+  @org.junit.Rule
+  public org.apache.hadoop.hbase.ResourceCheckerJUnitRule cu =
+    new org.apache.hadoop.hbase.ResourceCheckerJUnitRule();
+}

hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestHLogSplit.java

@@ -665,13 +665,12 @@ public class TestHLogSplit {
     fs.initialize(fs.getUri(), conf);
     // Set up a splitter that will throw an IOE on the output side
     HLogSplitter logSplitter = new HLogSplitter(
-        conf, hbaseDir, hlogDir, oldLogDir, fs) {
+        conf, hbaseDir, hlogDir, oldLogDir, fs, null) {
       protected HLog.Writer createWriter(FileSystem fs, Path logfile, Configuration conf)
       throws IOException {
         HLog.Writer mockWriter = Mockito.mock(HLog.Writer.class);
         Mockito.doThrow(new IOException("Injected")).when(mockWriter).append(Mockito.<HLog.Entry>any());
         return mockWriter;
-
       }
     };
     try {
@@ -698,7 +697,7 @@ public class TestHLogSplit {
         when(spiedFs).append(Mockito.<Path>any());
 
     HLogSplitter logSplitter = new HLogSplitter(
-        conf, hbaseDir, hlogDir, oldLogDir, spiedFs);
+        conf, hbaseDir, hlogDir, oldLogDir, spiedFs, null);
 
     try {
       logSplitter.splitLog();
@@ -756,7 +755,7 @@ public class TestHLogSplit {
 
     // Create a splitter that reads and writes the data without touching disk
     HLogSplitter logSplitter = new HLogSplitter(
-        localConf, hbaseDir, hlogDir, oldLogDir, fs) {
+        localConf, hbaseDir, hlogDir, oldLogDir, fs, null) {
 
       /* Produce a mock writer that doesn't write anywhere */
       protected HLog.Writer createWriter(FileSystem fs, Path logfile, Configuration conf)
@@ -1015,7 +1014,7 @@ public class TestHLogSplit {
     generateHLogs(1, 10, -1);
     FileStatus logfile = fs.listStatus(hlogDir)[0];
     fs.initialize(fs.getUri(), conf);
-    HLogSplitter.splitLogFile(hbaseDir, logfile, fs, conf, reporter);
+    HLogSplitter.splitLogFile(hbaseDir, logfile, fs, conf, reporter, null);
     HLogSplitter.finishSplitLogFile(hbaseDir, oldLogDir, logfile.getPath()
         .toString(), conf);
 
@@ -1122,7 +1121,7 @@ public class TestHLogSplit {
     generateHLogs(-1);
 
     HLogSplitter logSplitter = new HLogSplitter(
-        conf, hbaseDir, hlogDir, oldLogDir, fs) {
+        conf, hbaseDir, hlogDir, oldLogDir, fs, null) {
       protected HLog.Writer createWriter(FileSystem fs, Path logfile, Configuration conf)
       throws IOException {
         HLog.Writer writer = HLog.createWriter(fs, logfile, conf);