HDFS-4841. FsShell commands using secure webhfds fail ClientFinalizer shutdown hook. (rkanter via tucu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2.1-beta@1501010 13f79535-47bb-0310-9956-ffa450edef68

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileSystem.java

@@ -2397,7 +2397,8 @@ public abstract class FileSystem extends Configured implements Closeable {
         }
         
         // now insert the new file system into the map
-        if (map.isEmpty() ) {
+        if (map.isEmpty()
+                && !ShutdownHookManager.get().isShutdownInProgress()) {
           ShutdownHookManager.get().addShutdownHook(clientFinalizer, SHUTDOWN_HOOK_PRIORITY);
         }
         fs.key = key;

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -931,6 +931,9 @@ Release 2.1.0-beta - 2013-07-02
     HDFS-4875. Add a test for testing snapshot file length. 
     (Arpit Agarwal via jing9)
 
+    HDFS-4841. FsShell commands using secure webhfds fail ClientFinalizer 
+    shutdown hook. (rkanter via tucu)
+
 Release 2.0.5-alpha - 06/06/2013
 
   INCOMPATIBLE CHANGES