HDFS-2200. Change FSNamesystem.LOG to package private.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1151344 13f79535-47bb-0310-9956-ffa450edef68

hdfs/CHANGES.txt

@@ -607,6 +607,8 @@ Trunk (unreleased changes)
     HDFS-2191.  Move datanodeMap from FSNamesystem to DatanodeManager.
     (szetszwo)
 
+    HDFS-2200.  Change FSNamesystem.LOG to package private.  (szetszwo)
+
   OPTIMIZATIONS
 
     HDFS-1458. Improve checkpoint performance by avoiding unnecessary image

hdfs/src/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java

@@ -212,12 +212,12 @@ public class BlockManager {
     this.replicationRecheckInterval = 
       conf.getInt(DFSConfigKeys.DFS_NAMENODE_REPLICATION_INTERVAL_KEY, 
                   DFSConfigKeys.DFS_NAMENODE_REPLICATION_INTERVAL_DEFAULT) * 1000L;
-    FSNamesystem.LOG.info("defaultReplication = " + defaultReplication);
-    FSNamesystem.LOG.info("maxReplication = " + maxReplication);
-    FSNamesystem.LOG.info("minReplication = " + minReplication);
-    FSNamesystem.LOG.info("maxReplicationStreams = " + maxReplicationStreams);
-    FSNamesystem.LOG.info("shouldCheckForEnoughRacks = " + shouldCheckForEnoughRacks);
-    FSNamesystem.LOG.info("replicationRecheckInterval = " + replicationRecheckInterval);
+    LOG.info("defaultReplication = " + defaultReplication);
+    LOG.info("maxReplication     = " + maxReplication);
+    LOG.info("minReplication     = " + minReplication);
+    LOG.info("maxReplicationStreams      = " + maxReplicationStreams);
+    LOG.info("shouldCheckForEnoughRacks  = " + shouldCheckForEnoughRacks);
+    LOG.info("replicationRecheckInterval = " + replicationRecheckInterval);
   }
 
   public void activate(Configuration conf) {
@@ -344,9 +344,7 @@ public class BlockManager {
         namesystem.dir.updateSpaceConsumed(path, 0, -diff
             * fileINode.getReplication());
       } catch (IOException e) {
-        FSNamesystem.LOG
-            .warn("Unexpected exception while updating disk space : "
-                + e.getMessage());
+        LOG.warn("Unexpected exception while updating disk space.", e);
       }
     }
   }
@@ -517,7 +515,7 @@ public class BlockManager {
     final int numCorruptNodes = countNodes(blk).corruptReplicas();
     final int numCorruptReplicas = corruptReplicas.numCorruptReplicas(blk);
     if (numCorruptNodes != numCorruptReplicas) {
-      FSNamesystem.LOG.warn("Inconsistent number of corrupt replicas for "
+      LOG.warn("Inconsistent number of corrupt replicas for "
           + blk + " blockMap has " + numCorruptNodes
           + " but corrupt replicas map has " + numCorruptReplicas);
     }
@@ -915,7 +913,7 @@ public class BlockManager {
           Block block = neededReplicationsIterator.next();
           int priority = neededReplicationsIterator.getPriority();
           if (priority < 0 || priority >= blocksToReplicate.size()) {
-            FSNamesystem.LOG.warn("Unexpected replication priority: "
+            LOG.warn("Unexpected replication priority: "
                 + priority + " " + block);
           } else {
             blocksToReplicate.get(priority).add(block);
@@ -1384,8 +1382,8 @@ public class BlockManager {
       Collection<BlockInfo> toCorrupt,
       Collection<StatefulBlockInfo> toUC) {
     
-    if(FSNamesystem.LOG.isDebugEnabled()) {
-      FSNamesystem.LOG.debug("Reported block " + block
+    if(LOG.isDebugEnabled()) {
+      LOG.debug("Reported block " + block
           + " on " + dn.getName() + " size " + block.getNumBytes()
           + " replicaState = " + reportedState);
     }
@@ -1401,8 +1399,8 @@ public class BlockManager {
     BlockUCState ucState = storedBlock.getBlockUCState();
     
     // Block is on the NN
-    if(FSNamesystem.LOG.isDebugEnabled()) {
-      FSNamesystem.LOG.debug("In memory blockUCState = " + ucState);
+    if(LOG.isDebugEnabled()) {
+      LOG.debug("In memory blockUCState = " + ucState);
     }
 
     // Ignore replicas already scheduled to be removed from the DN
@@ -1457,7 +1455,7 @@ public class BlockManager {
     case RUR:       // should not be reported
     case TEMPORARY: // should not be reported
     default:
-      FSNamesystem.LOG.warn("Unexpected replica state " + reportedState
+      LOG.warn("Unexpected replica state " + reportedState
           + " for block: " + storedBlock + 
           " on " + dn.getName() + " size " + storedBlock.getNumBytes());
       return true;
@@ -1625,7 +1623,7 @@ public class BlockManager {
     int corruptReplicasCount = corruptReplicas.numCorruptReplicas(storedBlock);
     int numCorruptNodes = num.corruptReplicas();
     if (numCorruptNodes != corruptReplicasCount) {
-      FSNamesystem.LOG.warn("Inconsistent number of corrupt replicas for " +
+      LOG.warn("Inconsistent number of corrupt replicas for " +
           storedBlock + "blockMap has " + numCorruptNodes + 
           " but corrupt replicas map has " + corruptReplicasCount);
     }
@@ -1708,10 +1706,10 @@ public class BlockManager {
     } finally {
       namesystem.writeUnlock();
     }
-    FSNamesystem.LOG.info("Total number of blocks = " + blocksMap.size());
-    FSNamesystem.LOG.info("Number of invalid blocks = " + nrInvalid);
-    FSNamesystem.LOG.info("Number of under-replicated blocks = " + nrUnderReplicated);
-    FSNamesystem.LOG.info("Number of  over-replicated blocks = " + nrOverReplicated);
+    LOG.info("Total number of blocks            = " + blocksMap.size());
+    LOG.info("Number of invalid blocks          = " + nrInvalid);
+    LOG.info("Number of under-replicated blocks = " + nrUnderReplicated);
+    LOG.info("Number of  over-replicated blocks = " + nrOverReplicated);
   }
 
   /**
@@ -1955,7 +1953,7 @@ public class BlockManager {
       nodeList.append(node.name);
       nodeList.append(" ");
     }
-    FSNamesystem.LOG.info("Block: " + block + ", Expected Replicas: "
+    LOG.info("Block: " + block + ", Expected Replicas: "
         + curExpectedReplicas + ", live replicas: " + curReplicas
         + ", corrupt replicas: " + num.corruptReplicas()
         + ", decommissioned replicas: " + num.decommissionedReplicas()

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

@@ -22,6 +22,8 @@ import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hdfs.protocol.Block;
@@ -38,7 +40,8 @@ import org.apache.hadoop.util.ReflectionUtils;
  */
 @InterfaceAudience.Private
 public abstract class BlockPlacementPolicy {
-    
+  static final Log LOG = LogFactory.getLog(BlockPlacementPolicy.class);
+
   @InterfaceAudience.Private
   public static class NotEnoughReplicasException extends Exception {
     private static final long serialVersionUID = 1L;

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

@@ -212,7 +212,7 @@ public class BlockPlacementPolicyDefault extends BlockPlacementPolicy {
       chooseRandom(numOfReplicas, NodeBase.ROOT, excludedNodes, 
                    blocksize, maxNodesPerRack, results);
     } catch (NotEnoughReplicasException e) {
-      FSNamesystem.LOG.warn("Not able to place enough replicas, still in need of "
+      LOG.warn("Not able to place enough replicas, still in need of "
                + numOfReplicas + " to reach " + totalReplicasExpected + "\n"
                + e.getMessage());
     }
@@ -343,7 +343,7 @@ public class BlockPlacementPolicyDefault extends BlockPlacementPolicy {
     int numOfAvailableNodes =
       clusterMap.countNumOfAvailableNodes(nodes, excludedNodes.keySet());
     StringBuilder builder = null;
-    if (FSNamesystem.LOG.isDebugEnabled()) {
+    if (LOG.isDebugEnabled()) {
       builder = threadLocalBuilder.get();
       builder.setLength(0);
       builder.append("[");
@@ -366,7 +366,7 @@ public class BlockPlacementPolicyDefault extends BlockPlacementPolicy {
     }
 
     String detail = enableDebugLogging;
-    if (FSNamesystem.LOG.isDebugEnabled()) {
+    if (LOG.isDebugEnabled()) {
       if (badTarget && builder != null) {
         detail = builder.append("]").toString();
         builder.setLength(0);
@@ -388,7 +388,7 @@ public class BlockPlacementPolicyDefault extends BlockPlacementPolicy {
     int numOfAvailableNodes =
       clusterMap.countNumOfAvailableNodes(nodes, excludedNodes.keySet());
     StringBuilder builder = null;
-    if (FSNamesystem.LOG.isDebugEnabled()) {
+    if (LOG.isDebugEnabled()) {
       builder = threadLocalBuilder.get();
       builder.setLength(0);
       builder.append("[");
@@ -412,7 +412,7 @@ public class BlockPlacementPolicyDefault extends BlockPlacementPolicy {
       
     if (numOfReplicas>0) {
       String detail = enableDebugLogging;
-      if (FSNamesystem.LOG.isDebugEnabled()) {
+      if (LOG.isDebugEnabled()) {
         if (badTarget && builder != null) {
           detail = builder.append("]").toString();
           builder.setLength(0);
@@ -439,7 +439,7 @@ public class BlockPlacementPolicyDefault extends BlockPlacementPolicy {
                                List<DatanodeDescriptor> results) {
     // check if the node is (being) decommissed
     if (node.isDecommissionInProgress() || node.isDecommissioned()) {
-      if(FSNamesystem.LOG.isDebugEnabled()) {
+      if(LOG.isDebugEnabled()) {
         threadLocalBuilder.get().append(node.toString()).append(": ")
           .append("Node ").append(NodeBase.getPath(node))
           .append(" is not chosen because the node is (being) decommissioned ");
@@ -451,7 +451,7 @@ public class BlockPlacementPolicyDefault extends BlockPlacementPolicy {
                      (node.getBlocksScheduled() * blockSize); 
     // check the remaining capacity of the target machine
     if (blockSize* FSConstants.MIN_BLOCKS_FOR_WRITE>remaining) {
-      if(FSNamesystem.LOG.isDebugEnabled()) {
+      if(LOG.isDebugEnabled()) {
         threadLocalBuilder.get().append(node.toString()).append(": ")
           .append("Node ").append(NodeBase.getPath(node))
           .append(" is not chosen because the node does not have enough space ");
@@ -467,7 +467,7 @@ public class BlockPlacementPolicyDefault extends BlockPlacementPolicy {
         avgLoad = (double)stats.getTotalLoad()/size;
       }
       if (node.getXceiverCount() > (2.0 * avgLoad)) {
-        if(FSNamesystem.LOG.isDebugEnabled()) {
+        if(LOG.isDebugEnabled()) {
           threadLocalBuilder.get().append(node.toString()).append(": ")
             .append("Node ").append(NodeBase.getPath(node))
             .append(" is not chosen because the node is too busy ");
@@ -487,7 +487,7 @@ public class BlockPlacementPolicyDefault extends BlockPlacementPolicy {
       }
     }
     if (counter>maxTargetPerLoc) {
-      if(FSNamesystem.LOG.isDebugEnabled()) {
+      if(LOG.isDebugEnabled()) {
         threadLocalBuilder.get().append(node.toString()).append(": ")
           .append("Node ").append(NodeBase.getPath(node))
           .append(" is not chosen because the rack has too many chosen nodes ");

hdfs/src/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeDescriptor.java

@@ -19,16 +19,22 @@ package org.apache.hadoop.hdfs.server.blockmanagement;
 
 import java.io.DataInput;
 import java.io.IOException;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+import java.util.Set;
+import java.util.TreeSet;
 
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.classification.InterfaceStability;
+import org.apache.hadoop.hdfs.DeprecatedUTF8;
 import org.apache.hadoop.hdfs.protocol.Block;
 import org.apache.hadoop.hdfs.protocol.DatanodeID;
 import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
-import org.apache.hadoop.hdfs.server.namenode.FSNamesystem;
 import org.apache.hadoop.io.Text;
-import org.apache.hadoop.hdfs.DeprecatedUTF8;
 import org.apache.hadoop.io.WritableUtils;
 
 /**************************************************
@@ -326,7 +332,7 @@ public class DatanodeDescriptor extends DatanodeInfo {
   void addBlockToBeRecovered(BlockInfoUnderConstruction block) {
     if(recoverBlocks.contains(block)) {
       // this prevents adding the same block twice to the recovery queue
-      FSNamesystem.LOG.info("Block " + block +
+      BlockManager.LOG.info("Block " + block +
                             " is already in the recovery queue.");
       return;
     }

hdfs/src/java/org/apache/hadoop/hdfs/server/blockmanagement/PendingReplicationBlocks.java

@@ -17,14 +17,18 @@
  */
 package org.apache.hadoop.hdfs.server.blockmanagement;
 
-import org.apache.hadoop.hdfs.protocol.Block;
-import org.apache.hadoop.hdfs.server.namenode.FSNamesystem;
-
 import static org.apache.hadoop.hdfs.server.common.Util.now;
-import org.apache.hadoop.util.*;
-import java.io.*;
-import java.util.*;
+
+import java.io.PrintWriter;
 import java.sql.Time;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+
+import org.apache.commons.logging.Log;
+import org.apache.hadoop.hdfs.protocol.Block;
+import org.apache.hadoop.util.Daemon;
 
 /***************************************************
  * PendingReplicationBlocks does the bookkeeping of all
@@ -38,6 +42,8 @@ import java.sql.Time;
  *
  ***************************************************/
 class PendingReplicationBlocks {
+  private static final Log LOG = BlockManager.LOG;
+
   private Map<Block, PendingBlockInfo> pendingReplications;
   private ArrayList<Block> timedOutItems;
   Daemon timerThread = null;
@@ -87,9 +93,8 @@ class PendingReplicationBlocks {
     synchronized (pendingReplications) {
       PendingBlockInfo found = pendingReplications.get(block);
       if (found != null) {
-        if(FSNamesystem.LOG.isDebugEnabled()) {
-          FSNamesystem.LOG.debug("Removing pending replication for block" +
-              block);
+        if(LOG.isDebugEnabled()) {
+          LOG.debug("Removing pending replication for " + block);
         }
         found.decrementReplicas();
         if (found.getNumReplicas() <= 0) {
@@ -186,9 +191,8 @@ class PendingReplicationBlocks {
           pendingReplicationCheck();
           Thread.sleep(period);
         } catch (InterruptedException ie) {
-          if(FSNamesystem.LOG.isDebugEnabled()) {
-            FSNamesystem.LOG.debug(
-                "PendingReplicationMonitor thread received exception. " + ie);
+          if(LOG.isDebugEnabled()) {
+            LOG.debug("PendingReplicationMonitor thread is interrupted.", ie);
           }
         }
       }
@@ -202,8 +206,8 @@ class PendingReplicationBlocks {
         Iterator<Map.Entry<Block, PendingBlockInfo>> iter =
                                     pendingReplications.entrySet().iterator();
         long now = now();
-        if(FSNamesystem.LOG.isDebugEnabled()) {
-          FSNamesystem.LOG.debug("PendingReplicationMonitor checking Q");
+        if(LOG.isDebugEnabled()) {
+          LOG.debug("PendingReplicationMonitor checking Q");
         }
         while (iter.hasNext()) {
           Map.Entry<Block, PendingBlockInfo> entry = iter.next();
@@ -213,8 +217,7 @@ class PendingReplicationBlocks {
             synchronized (timedOutItems) {
               timedOutItems.add(block);
             }
-            FSNamesystem.LOG.warn(
-                "PendingReplicationMonitor timed out block " + block);
+            LOG.warn("PendingReplicationMonitor timed out " + block);
             iter.remove();
           }
         }

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

@@ -162,7 +162,7 @@ import org.mortbay.util.ajax.JSON;
 @Metrics(context="dfs")
 public class FSNamesystem implements FSConstants, FSNamesystemMBean,
     FSClusterStats, NameNodeMXBean {
-  public static final Log LOG = LogFactory.getLog(FSNamesystem.class);
+  static final Log LOG = LogFactory.getLog(FSNamesystem.class);
 
   private static final ThreadLocal<StringBuilder> auditBuffer =
     new ThreadLocal<StringBuilder>() {

hdfs/src/test/aop/org/apache/hadoop/hdfs/TestFiPipelines.java

@@ -236,7 +236,7 @@ public class TestFiPipelines {
 
   private static void initLoggers() {
     ((Log4JLogger) NameNode.stateChangeLog).getLogger().setLevel(Level.ALL);
-    ((Log4JLogger) FSNamesystem.LOG).getLogger().setLevel(Level.ALL);
+    ((Log4JLogger) LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL);
     ((Log4JLogger) DataNode.LOG).getLogger().setLevel(Level.ALL);
     ((Log4JLogger) TestFiPipelines.LOG).getLogger().setLevel(Level.ALL);
     ((Log4JLogger) DFSClient.LOG).getLogger().setLevel(Level.ALL);

hdfs/src/test/hdfs/org/apache/hadoop/hdfs/TestDatanodeDeath.java

@@ -21,6 +21,7 @@ import java.io.IOException;
 
 import junit.framework.TestCase;
 
+import org.apache.commons.logging.LogFactory;
 import org.apache.commons.logging.impl.Log4JLogger;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.BlockLocation;
@@ -44,7 +45,7 @@ public class TestDatanodeDeath extends TestCase {
   {
     ((Log4JLogger)NameNode.stateChangeLog).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)LeaseManager.LOG).getLogger().setLevel(Level.ALL);
-    ((Log4JLogger)FSNamesystem.LOG).getLogger().setLevel(Level.ALL);
+    ((Log4JLogger)LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)DataNode.LOG).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)DFSClient.LOG).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)InterDatanodeProtocol.LOG).getLogger().setLevel(Level.ALL);

hdfs/src/test/hdfs/org/apache/hadoop/hdfs/TestFileAppend2.java

@@ -37,6 +37,7 @@ import org.apache.hadoop.io.IOUtils;
 import org.apache.hadoop.security.AccessControlException;
 import org.apache.hadoop.security.UserGroupInformation;
 
+import org.apache.commons.logging.LogFactory;
 import org.apache.commons.logging.impl.Log4JLogger;
 import org.apache.log4j.Level;
 
@@ -49,7 +50,7 @@ public class TestFileAppend2 extends TestCase {
   {
     ((Log4JLogger)NameNode.stateChangeLog).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)LeaseManager.LOG).getLogger().setLevel(Level.ALL);
-    ((Log4JLogger)FSNamesystem.LOG).getLogger().setLevel(Level.ALL);
+    ((Log4JLogger)LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)DataNode.LOG).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)DFSClient.LOG).getLogger().setLevel(Level.ALL);
   }

hdfs/src/test/hdfs/org/apache/hadoop/hdfs/TestFileAppend3.java

@@ -24,6 +24,7 @@ import junit.extensions.TestSetup;
 import junit.framework.Test;
 import junit.framework.TestSuite;
 
+import org.apache.commons.logging.LogFactory;
 import org.apache.commons.logging.impl.Log4JLogger;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FSDataOutputStream;
@@ -46,7 +47,7 @@ public class TestFileAppend3 extends junit.framework.TestCase {
   {
     ((Log4JLogger)NameNode.stateChangeLog).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)LeaseManager.LOG).getLogger().setLevel(Level.ALL);
-    ((Log4JLogger)FSNamesystem.LOG).getLogger().setLevel(Level.ALL);
+    ((Log4JLogger)LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)DataNode.LOG).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)DFSClient.LOG).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)InterDatanodeProtocol.LOG).getLogger().setLevel(Level.ALL);

hdfs/src/test/hdfs/org/apache/hadoop/hdfs/TestFileAppend4.java

@@ -70,7 +70,7 @@ public class TestFileAppend4 {
   {
     ((Log4JLogger)NameNode.stateChangeLog).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)LeaseManager.LOG).getLogger().setLevel(Level.ALL);
-    ((Log4JLogger)FSNamesystem.LOG).getLogger().setLevel(Level.ALL);
+    ((Log4JLogger)LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)DataNode.LOG).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)DFSClient.LOG).getLogger().setLevel(Level.ALL);
   }

hdfs/src/test/hdfs/org/apache/hadoop/hdfs/TestFileConcurrentReader.java

@@ -17,6 +17,7 @@
  */
 package org.apache.hadoop.hdfs;
 
+import org.apache.commons.logging.LogFactory;
 import org.apache.commons.logging.impl.Log4JLogger;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.BlockLocation;
@@ -54,7 +55,7 @@ public class TestFileConcurrentReader extends junit.framework.TestCase {
 
   {
     ((Log4JLogger) LeaseManager.LOG).getLogger().setLevel(Level.ALL);
-    ((Log4JLogger) FSNamesystem.LOG).getLogger().setLevel(Level.ALL);
+    ((Log4JLogger)LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL);
     ((Log4JLogger) DFSClient.LOG).getLogger().setLevel(Level.ALL);
   }
 

hdfs/src/test/hdfs/org/apache/hadoop/hdfs/TestFileCorruption.java

@@ -27,6 +27,7 @@ import java.util.ArrayList;
 import junit.framework.TestCase;
 
 import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
 import org.apache.commons.logging.impl.Log4JLogger;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.ChecksumException;
@@ -48,7 +49,7 @@ import org.apache.log4j.Level;
 public class TestFileCorruption extends TestCase {
   {
     ((Log4JLogger)NameNode.stateChangeLog).getLogger().setLevel(Level.ALL);
-    ((Log4JLogger)FSNamesystem.LOG).getLogger().setLevel(Level.ALL);
+    ((Log4JLogger)LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)DFSClient.LOG).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)DataNode.LOG).getLogger().setLevel(Level.ALL);
   }

hdfs/src/test/hdfs/org/apache/hadoop/hdfs/TestFileCreation.java

@@ -25,6 +25,7 @@ import java.io.IOException;
 import java.net.InetSocketAddress;
 import java.util.EnumSet;
 
+import org.apache.commons.logging.LogFactory;
 import org.apache.commons.logging.impl.Log4JLogger;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.CreateFlag;
@@ -59,7 +60,7 @@ public class TestFileCreation extends junit.framework.TestCase {
   {
     //((Log4JLogger)DataNode.LOG).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)LeaseManager.LOG).getLogger().setLevel(Level.ALL);
-    ((Log4JLogger)FSNamesystem.LOG).getLogger().setLevel(Level.ALL);
+    ((Log4JLogger)LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)DFSClient.LOG).getLogger().setLevel(Level.ALL);
   }
 

hdfs/src/test/hdfs/org/apache/hadoop/hdfs/TestFileCreationClient.java

@@ -17,6 +17,7 @@
  */
 package org.apache.hadoop.hdfs;
 
+import org.apache.commons.logging.LogFactory;
 import org.apache.commons.logging.impl.Log4JLogger;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FSDataInputStream;
@@ -40,7 +41,7 @@ public class TestFileCreationClient extends junit.framework.TestCase {
   {
     ((Log4JLogger)DataNode.LOG).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)LeaseManager.LOG).getLogger().setLevel(Level.ALL);
-    ((Log4JLogger)FSNamesystem.LOG).getLogger().setLevel(Level.ALL);
+    ((Log4JLogger)LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)InterDatanodeProtocol.LOG).getLogger().setLevel(Level.ALL);
   }
 

hdfs/src/test/hdfs/org/apache/hadoop/hdfs/TestFileCreationDelete.java

@@ -19,6 +19,7 @@ package org.apache.hadoop.hdfs;
 
 import java.io.IOException;
 
+import org.apache.commons.logging.LogFactory;
 import org.apache.commons.logging.impl.Log4JLogger;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FSDataOutputStream;
@@ -33,7 +34,7 @@ public class TestFileCreationDelete extends junit.framework.TestCase {
   {
     ((Log4JLogger)NameNode.stateChangeLog).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)LeaseManager.LOG).getLogger().setLevel(Level.ALL);
-    ((Log4JLogger)FSNamesystem.LOG).getLogger().setLevel(Level.ALL);
+    ((Log4JLogger)LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL);
   }
 
   public void testFileCreationDeleteParent() throws IOException {

hdfs/src/test/hdfs/org/apache/hadoop/hdfs/TestFileCreationEmpty.java

@@ -21,7 +21,7 @@ import java.util.ConcurrentModificationException;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.Path;
-import org.apache.hadoop.hdfs.server.namenode.FSNamesystem;
+import org.apache.hadoop.hdfs.server.namenode.LeaseManager;
 
 /**
  * Test empty file creation.
@@ -40,7 +40,7 @@ public class TestFileCreationEmpty extends junit.framework.TestCase {
     Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
       public void uncaughtException(Thread t, Throwable e) {
         if (e instanceof ConcurrentModificationException) {
-          FSNamesystem.LOG.error("t=" + t, e);
+          LeaseManager.LOG.error("t=" + t, e);
           isConcurrentModificationException = true;
         }
       }

hdfs/src/test/hdfs/org/apache/hadoop/hdfs/TestFileStatus.java

@@ -26,6 +26,7 @@ import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.util.Random;
 
+import org.apache.commons.logging.LogFactory;
 import org.apache.commons.logging.impl.Log4JLogger;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FSDataOutputStream;
@@ -51,7 +52,7 @@ import org.junit.Test;
  */
 public class TestFileStatus {
   {
-    ((Log4JLogger)FSNamesystem.LOG).getLogger().setLevel(Level.ALL);
+    ((Log4JLogger)LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)FileSystem.LOG).getLogger().setLevel(Level.ALL);
   }
 

hdfs/src/test/hdfs/org/apache/hadoop/hdfs/TestLeaseRecovery2.java

@@ -57,7 +57,7 @@ public class TestLeaseRecovery2 {
   {
     ((Log4JLogger)DataNode.LOG).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)LeaseManager.LOG).getLogger().setLevel(Level.ALL);
-    ((Log4JLogger)FSNamesystem.LOG).getLogger().setLevel(Level.ALL);
+    ((Log4JLogger)LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL);
   }
 
   static final private long BLOCK_SIZE = 1024;

hdfs/src/test/hdfs/org/apache/hadoop/hdfs/TestMultiThreadedHflush.java

@@ -24,6 +24,7 @@ import java.util.ArrayList;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.atomic.AtomicReference;
 
+import org.apache.commons.logging.LogFactory;
 import org.apache.commons.logging.impl.Log4JLogger;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileSystem;
@@ -53,7 +54,7 @@ public class TestMultiThreadedHflush {
   {
     ((Log4JLogger)NameNode.stateChangeLog).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)LeaseManager.LOG).getLogger().setLevel(Level.ALL);
-    ((Log4JLogger)FSNamesystem.LOG).getLogger().setLevel(Level.ALL);
+    ((Log4JLogger)LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)DataNode.LOG).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)DFSClient.LOG).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)InterDatanodeProtocol.LOG).getLogger().setLevel(Level.ALL);

hdfs/src/test/hdfs/org/apache/hadoop/hdfs/TestPipelines.java

@@ -160,7 +160,7 @@ public class TestPipelines {
 
   private static void initLoggers() {
     ((Log4JLogger) NameNode.stateChangeLog).getLogger().setLevel(Level.ALL);
-    ((Log4JLogger) FSNamesystem.LOG).getLogger().setLevel(Level.ALL);
+    ((Log4JLogger)LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL);
     ((Log4JLogger) DataNode.LOG).getLogger().setLevel(Level.ALL);
     ((Log4JLogger) DFSClient.LOG).getLogger().setLevel(Level.ALL);
   }

hdfs/src/test/hdfs/org/apache/hadoop/hdfs/TestReadWhileWriting.java

@@ -21,6 +21,7 @@ import java.io.IOException;
 import java.io.OutputStream;
 import java.security.PrivilegedExceptionAction;
 
+import org.apache.commons.logging.LogFactory;
 import org.apache.commons.logging.impl.Log4JLogger;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FSDataOutputStream;
@@ -38,7 +39,7 @@ import org.junit.Test;
 /** Test reading from hdfs while a file is being written. */
 public class TestReadWhileWriting {
   {
-    ((Log4JLogger)FSNamesystem.LOG).getLogger().setLevel(Level.ALL);
+    ((Log4JLogger)LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)DFSClient.LOG).getLogger().setLevel(Level.ALL);
   }
 

hdfs/src/test/hdfs/org/apache/hadoop/hdfs/TestRenameWhileOpen.java

@@ -19,6 +19,7 @@ package org.apache.hadoop.hdfs;
 
 import java.io.IOException;
 
+import org.apache.commons.logging.LogFactory;
 import org.apache.commons.logging.impl.Log4JLogger;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FSDataOutputStream;
@@ -33,7 +34,7 @@ public class TestRenameWhileOpen extends junit.framework.TestCase {
   {
     ((Log4JLogger)NameNode.stateChangeLog).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)LeaseManager.LOG).getLogger().setLevel(Level.ALL);
-    ((Log4JLogger)FSNamesystem.LOG).getLogger().setLevel(Level.ALL);
+    ((Log4JLogger)LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL);
   }
 
   //TODO: un-comment checkFullFile once the lease recovery is done

hdfs/src/test/hdfs/org/apache/hadoop/hdfs/server/balancer/TestBalancerWithMultipleNameNodes.java

@@ -25,6 +25,7 @@ import java.util.List;
 import java.util.Random;
 
 import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
 import org.apache.commons.logging.impl.Log4JLogger;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileSystem;
@@ -56,7 +57,7 @@ public class TestBalancerWithMultipleNameNodes {
     ((Log4JLogger)LOG).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)NameNode.stateChangeLog).getLogger().setLevel(Level.OFF);
     ((Log4JLogger)LeaseManager.LOG).getLogger().setLevel(Level.OFF);
-    ((Log4JLogger)FSNamesystem.LOG).getLogger().setLevel(Level.OFF);
+    ((Log4JLogger)LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.OFF);
 //    ((Log4JLogger)DataNode.LOG).getLogger().setLevel(Level.OFF);
   }
 

hdfs/src/test/hdfs/org/apache/hadoop/hdfs/server/datanode/TestBlockReport.java

@@ -667,7 +667,7 @@ public class TestBlockReport {
 
   private static void initLoggers() {
     ((Log4JLogger) NameNode.stateChangeLog).getLogger().setLevel(Level.ALL);
-    ((Log4JLogger) FSNamesystem.LOG).getLogger().setLevel(Level.ALL);
+    ((Log4JLogger) LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL);
     ((Log4JLogger) DataNode.LOG).getLogger().setLevel(Level.ALL);
     ((Log4JLogger) TestBlockReport.LOG).getLogger().setLevel(Level.ALL);
   }

hdfs/src/test/unit/org/apache/hadoop/hdfs/server/datanode/TestBlockRecovery.java

@@ -84,7 +84,7 @@ public class TestBlockRecovery {
     new NamespaceInfo(1,CLUSTER_ID, POOL_ID, 2, 3);
 
   static {
-    ((Log4JLogger)FSNamesystem.LOG).getLogger().setLevel(Level.ALL);
+    ((Log4JLogger)LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL);
     ((Log4JLogger)LOG).getLogger().setLevel(Level.ALL);
   }