CHUKWA-466. Fix failing test cases.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/chukwa/branches/chukwa-0.4@933366 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/java/org/apache/hadoop/chukwa/datacollection/writer/SocketTeeWriter.java b/src/java/org/apache/hadoop/chukwa/datacollection/writer/SocketTeeWriter.java
index 68bd66d..35695e5 100644
--- a/src/java/org/apache/hadoop/chukwa/datacollection/writer/SocketTeeWriter.java
+++ b/src/java/org/apache/hadoop/chukwa/datacollection/writer/SocketTeeWriter.java
@@ -153,6 +153,7 @@
             out.write(data);
           }
         }
+        out.flush();
       } catch(IOException e) {
         log.info("lost tee: "+ e.toString());
         synchronized(tees) {