diff --git a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
index 7ac1ec93e5..9ab43c29f9 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
+++ b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
@@ -190,6 +190,8 @@ Release 0.23.1 - UNRELEASED
     HDFS-2588. hdfs jsp pages missing DOCTYPE. (Dave Vronay via mattf)
 
     HDFS-2590. Fix the missing links in the WebHDFS forrest doc.  (szetszwo)
+
+    HDFS-2596. TestDirectoryScanner doesn't test parallel scans. (eli)
     
 Release 0.23.0 - 2011-11-01 
 
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDirectoryScanner.java b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDirectoryScanner.java
index 85eb8fe4a7..7410d42679 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDirectoryScanner.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDirectoryScanner.java
@@ -218,7 +218,7 @@ private void scan(long totalBlocks, int diffsize, long missingMetaFile, long mis
 
   public void testDirectoryScanner() throws Exception {
     // Run the test with and without parallel scanning
-    for (int parallelism = 1; parallelism < 2; parallelism++) {
+    for (int parallelism = 1; parallelism < 3; parallelism++) {
       runTest(parallelism);
     }
   }