diff --git a/src/java/overview.html b/src/java/overview.html
index 1933cb45fe3..f520e0f79ab 100644
--- a/src/java/overview.html
+++ b/src/java/overview.html
@@ -97,6 +97,7 @@
         In the meantime the NameNode can still send DFSClients to the dead DataNode as host for
         a replicated block. DFSClient can get stuck on trying to get block from a
         dead node. This patch allows DFSClients pass NameNode lists of known dead DataNodes.
+        Recommended, particularly if your cluster is small.
       </li>
     </ul>
   </li>