HADOOP-12294. Remove the support of the deprecated dfs.umask. Contributed by Chang Li.

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -35,6 +35,9 @@ Trunk (Unreleased)
     HADOOP-10787 Rename/remove non-HADOOP_*, etc from the shell scripts.
     (aw via vvasudev)
 
+    HADOOP-12294. Remove the support of the deprecated dfs.umask.
+    (Chang Li vha wheat9)
+
   NEW FEATURES
 
     HADOOP-6590. Add a username check for hadoop sub-commands (John Smith via

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

@@ -258,22 +258,8 @@ public static FsPermission getUMask(Configuration conf) {
         String error = "Unable to parse configuration " + UMASK_LABEL
             + " with value " + confUmask + " as " + type + " umask.";
         LOG.warn(error);
-        
-        // If oldUmask is not set, then throw the exception
-        if (oldUmask == Integer.MIN_VALUE) {
-          throw new IllegalArgumentException(error);
-        }
-      }
-        
-      if(oldUmask != Integer.MIN_VALUE) { // Property was set with old key
-        if (umask != oldUmask) {
-          LOG.warn(DEPRECATED_UMASK_LABEL
-              + " configuration key is deprecated. " + "Convert to "
-              + UMASK_LABEL + ", using octal or symbolic umask "
-              + "specifications.");
-          // Old and new umask values do not match - Use old umask
-          umask = oldUmask;
-        }
+
+        throw new IllegalArgumentException(error);
       }
     }