HADOOP-3440. Fixes DistributedCache to not create symlinks for paths which don't have fragments even when createSymLink is true. Contributed by Abhijit Bagri.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/core/trunk@664097 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -504,6 +504,10 @@ Trunk (unreleased changes)
     HADOOP-3503. Fix a race condition when client and namenode start simultaneous
     recovery of the same block.  (dhruba & Tsz Wo (Nicholas), SZE)
 
+    HADOOP-3440. Fixes DistributedCache to not create symlinks for paths which
+    don't have fragments even when createSymLink is true. 
+    (Abhijit Bagri via ddas) 
+
 Release 0.17.0 - 2008-05-18
 
   INCOMPATIBLE CHANGES

src/java/org/apache/hadoop/filecache/DistributedCache.java

@@ -297,6 +297,9 @@ public class DistributedCache {
                                     Path currentWorkDir) 
   throws IOException {
     boolean doSymlink = getSymlink(conf);
+    if(cache.getFragment() == null) {
+    	doSymlink = false;
+    }
     FileSystem fs = getFileSystem(cache, conf);
     String link = currentWorkDir.toString() + Path.SEPARATOR + cache.getFragment();
     File flink = new File(link);