HDFS-629. Remove ReplicationTargetChooser.java and fix

import warnings generated by Eclipse. (dhruba)



git-svn-id: https://svn.apache.org/repos/asf/hadoop/hdfs/trunk@816988 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -12,6 +12,10 @@ Trunk (unreleased changes)
 
   BUG FIXES
 
+    HDFS-629. Remove ReplicationTargetChooser.java along with fixing 
+    import warnings generated by Eclipse. (dhruba)
+
+
 Release 0.21.0 - Unreleased
 
   INCOMPATIBLE CHANGES

src/java/org/apache/hadoop/hdfs/server/namenode/BlockPlacementPolicy.java

@@ -19,10 +19,8 @@ package org.apache.hadoop.hdfs.server.namenode;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hdfs.protocol.Block;
-import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
 import org.apache.hadoop.hdfs.protocol.LocatedBlock;
 import org.apache.hadoop.net.NetworkTopology;
-import org.apache.hadoop.net.Node; 
 import org.apache.hadoop.util.ReflectionUtils;
 import java.util.*;
 

src/java/org/apache/hadoop/hdfs/server/namenode/BlockPlacementPolicyDefault.java

@@ -23,7 +23,6 @@ import org.apache.hadoop.hdfs.protocol.Block;
 import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
 import org.apache.hadoop.hdfs.protocol.FSConstants;
 import org.apache.hadoop.hdfs.protocol.LocatedBlock;
-import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
 import org.apache.hadoop.net.NetworkTopology;
 import org.apache.hadoop.net.Node;
 import org.apache.hadoop.net.NodeBase;

src/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java

@@ -2414,7 +2414,6 @@ public class FSNamesystem implements FSConstants, FSNamesystemMBean, FSClusterSt
     boolean firstOne = true;
     while (nonExcess.size() - replication > 0) {
       DatanodeInfo cur = null;
-      long minSpace = Long.MAX_VALUE;
 
       // check if we can del delNodeHint
       if (firstOne && delNodeHint !=null && nonExcess.contains(delNodeHint) &&