diff --git a/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSUtilClient.java b/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSUtilClient.java
index 7c71c64ec3..1a1819dfa2 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSUtilClient.java
+++ b/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSUtilClient.java
@@ -733,13 +733,13 @@ public static boolean isLocalAddress(InetSocketAddress targetAddr)
     InetAddress addr = targetAddr.getAddress();
     Boolean cached = localAddrMap.get(addr.getHostAddress());
     if (cached != null) {
-      LOG.trace("Address {} is {} local", targetAddr, (cached ? "" : "not"));
+      LOG.trace("Address {} is{} local", targetAddr, (cached ? "" : " not"));
       return cached;
     }
 
     boolean local = NetUtils.isLocalAddress(addr);
 
-    LOG.trace("Address {} is {} local", targetAddr, (local ? "" : "not"));
+    LOG.trace("Address {} is{} local", targetAddr, (local ? "" : " not"));
     localAddrMap.put(addr.getHostAddress(), local);
     return local;
   }