From 8e63fa98eabac55bdb2254306584ad1e759c79eb Mon Sep 17 00:00:00 2001
From: Andrew Wang <wang@apache.org>
Date: Mon, 5 Dec 2016 18:13:53 -0800
Subject: [PATCH] HDFS-10581. Hide redundant table on NameNode WebUI when no
 nodes are decomissioning. Contributed by Weiwei Yang.

---
 .../hadoop-hdfs/src/main/webapps/hdfs/dfshealth.html          | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/hdfs/dfshealth.html b/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/hdfs/dfshealth.html
index b0db3a1dc1..13569fec63 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/hdfs/dfshealth.html
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/hdfs/dfshealth.html
@@ -352,6 +352,7 @@
 
 <div class="page-header"><h1><small>Decommissioning</small></h1></div>
 <small>
+{?DecomNodes}
 <table class="table">
   <thead>
     <tr>
@@ -370,6 +371,9 @@
   </tr>
   {/DecomNodes}
 </table>
+{:else}
+No nodes are decommissioning
+{/DecomNodes}
 </small>
 </script>