Author: jing9
Date: Mon Jan 13 18:37:56 2014
New Revision: 1557803

URL: http://svn.apache.org/r1557803
Log:
HDFS-5710. FSDirectory#getFullPathName should check inodes against null. 
Contributed by Uma Maheswara Rao G.

Modified:
    hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
    
hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java

Modified: hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
URL: 
http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt?rev=1557803&r1=1557802&r2=1557803&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt (original)
+++ hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt Mon Jan 13 
18:37:56 2014
@@ -746,6 +746,9 @@ Release 2.4.0 - UNRELEASED
 
     HDFS-5747. Fix NPEs in BlockManager. (Arpit Agarwal)
 
+    HDFS-5710. FSDirectory#getFullPathName should check inodes against null.
+    (Uma Maheswara Rao G via jing9)
+
   BREAKDOWN OF HDFS-2832 SUBTASKS AND RELATED JIRAS
 
     HDFS-4985. Add storage type to the protocol and expose it in block report

Modified: 
hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
URL: 
http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java?rev=1557803&r1=1557802&r2=1557803&view=diff
==============================================================================
--- 
hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
 (original)
+++ 
hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
 Mon Jan 13 18:37:56 2014
@@ -1842,7 +1842,8 @@ public class FSDirectory implements Clos
   /** Return the full path name of the specified inode */
   static String getFullPathName(INode inode) {
     INode[] inodes = getFullPathINodes(inode);
-    return getFullPathName(inodes, inodes.length - 1);
+    // inodes can be null only when its called without holding lock
+    return inodes == null ? "" : getFullPathName(inodes, inodes.length - 1);
   }
   
   /**


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