diff --git a/CHANGES.txt b/CHANGES.txt
index f0ea538a5a..0af1a137ec 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -71,6 +71,8 @@ Trunk (unreleased changes)
     HADOOP-6254. Slow reads cause s3n to fail with SocketTimeoutException.
     (Andrew Hitchcock via tomwhite)
 
+    HADOOP-6428. HttpServer sleeps with negative values. (cos)
+
 Release 0.21.0 - Unreleased
 
   INCOMPATIBLE CHANGES
diff --git a/src/java/org/apache/hadoop/http/HttpServer.java b/src/java/org/apache/hadoop/http/HttpServer.java
index 39dc350515..0257141b8e 100644
--- a/src/java/org/apache/hadoop/http/HttpServer.java
+++ b/src/java/org/apache/hadoop/http/HttpServer.java
@@ -474,14 +474,13 @@ public void start() throws IOException {
           port = listener.getLocalPort();
           if (port < 0) {
             LOG.warn("Bounds port is " + port + " after webserver start");
-            Random r = new Random(1000);
             for (int i = 0; i < MAX_RETRIES/2; i++) {
               try {
                 webServer.stop();
               } catch (Exception e) {
                 LOG.warn("Can't stop  web-server", e);
               }
-              Thread.sleep(r.nextInt());
+              Thread.sleep(1000);
               
               listener.setPort(oriPort == 0 ? 0 : (oriPort += 1));
               listener.open();