diff --git a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
index 0ea165a9ac2..0a2e67a346a 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
+++ b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
@@ -398,6 +398,8 @@ Release 2.0.3-alpha - Unreleased
 
     HDFS-4068. DatanodeID and DatanodeInfo member should be private. (eli)
 
+    HDFS-4073. Two minor improvements to FSDirectory.  (Jing Zhao via szetszwo)
+
   OPTIMIZATIONS
 
   BUG FIXES
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
index d339e017bf2..c732b133aab 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
@@ -290,13 +290,18 @@ public class FSDirectory implements Closeable {
     try {
       newNode = addNode(path, newNode, UNKNOWN_DISK_SPACE);
     } catch (IOException e) {
+      if(NameNode.stateChangeLog.isDebugEnabled()) {
+        NameNode.stateChangeLog.debug(
+            "DIR* FSDirectory.unprotectedAddFile: exception when add " + path
+                + " to the file system", e);
+      }
       return null;
     }
     return newNode;
   }
 
   INodeDirectory addToParent(byte[] src, INodeDirectory parentINode,
-      INode newNode, boolean propagateModTime) throws UnresolvedLinkException {
+      INode newNode, boolean propagateModTime) {
     // NOTE: This does not update space counts for parents
     INodeDirectory newParent = null;
     writeLock();