HBASE-3265 Regionservers waiting for ROOT while Master waiting for RegionServers

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1040323 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -39,7 +39,6 @@ import java.util.Random;
 import java.util.Set;
 import java.util.SortedMap;
 import java.util.TreeMap;
-import java.util.TreeSet;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.LinkedBlockingQueue;
 import java.util.concurrent.TimeUnit;
@@ -47,8 +46,6 @@ import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.locks.ReentrantReadWriteLock;
 
-import com.google.common.base.Function;
-import com.google.common.collect.Lists;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
@@ -74,14 +71,11 @@ import org.apache.hadoop.hbase.Stoppable;
 import org.apache.hadoop.hbase.UnknownRowLockException;
 import org.apache.hadoop.hbase.UnknownScannerException;
 import org.apache.hadoop.hbase.YouAreDeadException;
-import org.apache.hadoop.hbase.HConstants.OperationStatusCode;
 import org.apache.hadoop.hbase.catalog.CatalogTracker;
 import org.apache.hadoop.hbase.catalog.MetaEditor;
 import org.apache.hadoop.hbase.catalog.RootLocationEditor;
 import org.apache.hadoop.hbase.client.Action;
 import org.apache.hadoop.hbase.client.Delete;
-import org.apache.hadoop.hbase.client.coprocessor.Exec;
-import org.apache.hadoop.hbase.client.coprocessor.ExecResult;
 import org.apache.hadoop.hbase.client.Get;
 import org.apache.hadoop.hbase.client.HConnection;
 import org.apache.hadoop.hbase.client.HConnectionManager;
@@ -94,10 +88,19 @@ import org.apache.hadoop.hbase.client.Put;
 import org.apache.hadoop.hbase.client.Result;
 import org.apache.hadoop.hbase.client.Row;
 import org.apache.hadoop.hbase.client.Scan;
+import org.apache.hadoop.hbase.client.coprocessor.Exec;
+import org.apache.hadoop.hbase.client.coprocessor.ExecResult;
 import org.apache.hadoop.hbase.executor.ExecutorService;
 import org.apache.hadoop.hbase.executor.ExecutorService.ExecutorType;
 import org.apache.hadoop.hbase.io.hfile.LruBlockCache;
-import org.apache.hadoop.hbase.ipc.*;
+import org.apache.hadoop.hbase.ipc.CoprocessorProtocol;
+import org.apache.hadoop.hbase.ipc.HBaseRPC;
+import org.apache.hadoop.hbase.ipc.HBaseRPCErrorHandler;
+import org.apache.hadoop.hbase.ipc.HBaseRPCProtocolVersion;
+import org.apache.hadoop.hbase.ipc.HMasterRegionInterface;
+import org.apache.hadoop.hbase.ipc.HRegionInterface;
+import org.apache.hadoop.hbase.ipc.Invocation;
+import org.apache.hadoop.hbase.ipc.RpcServer;
 import org.apache.hadoop.hbase.regionserver.Leases.LeaseStillHeldException;
 import org.apache.hadoop.hbase.regionserver.handler.CloseMetaHandler;
 import org.apache.hadoop.hbase.regionserver.handler.CloseRegionHandler;
@@ -125,9 +128,11 @@ import org.apache.hadoop.io.MapWritable;
 import org.apache.hadoop.io.Writable;
 import org.apache.hadoop.ipc.RemoteException;
 import org.apache.hadoop.net.DNS;
-import org.apache.hadoop.util.StringUtils;
 import org.apache.zookeeper.KeeperException;
 
+import com.google.common.base.Function;
+import com.google.common.collect.Lists;
+
 /**
  * HRegionServer makes a set of HRegions available to clients. It checks in with
  * the HMaster. There are many HRegionServers in a single HBase deployment.
@@ -548,8 +553,6 @@ public class HRegionServer implements HRegionInterface, HBaseRPCErrorHandler,
             this.stopping = true;
           }
         }
-        // Try to get the root region location from zookeeper.
-        this.catalogTracker.waitForRoot();
         long now = System.currentTimeMillis();
         // Drop into the send loop if msgInterval has elapsed or if something
         // to send. If we fail talking to the master, then we'll sleep below