Merge -r 611902:611903 from trunk to 0.15 branch to resolve HADOOP-2516.

git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/branches/branch-0.15@611905 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -147,6 +147,13 @@ Release 0.15.0 - 2007-11-2
     and codec, independent of the final output's compression
     parameters.  (Arun C Murthy via cutting)
 
+    HADOOP-1819.  Jobtracker cleanups, including binding ports before
+    clearing state directories, so that inadvertently starting a
+    second jobtracker doesn't trash one that's already running. Removed
+    method JobTracker.getTracker() because the static variable, which
+    stored the value caused initialization problems.
+    (omalley via cutting)
+
   NEW FEATURES
 
     HADOOP-89.  A client can access file data even before the creator
@@ -530,11 +537,6 @@ Release 0.15.0 - 2007-11-2
     HADOOP-1718.  Add ant targets for measuring code coverage with clover.
     (simonwillnauer via nigel)
 
-    HADOOP-1819.  Jobtracker cleanups, including binding ports before
-    clearing state directories, so that inadvertently starting a
-    second jobtracker doesn't trash one that's already running.
-    (omalley via cutting)
-
     HADOOP-1592.  Log error messages to the client console when tasks
     fail.  (Amar Kamat via cutting)