From cb5a1edd1cfebec389110a192aa0e5359abeff0e Mon Sep 17 00:00:00 2001
From: Kihwal Lee <kihwal@apache.org>
Date: Tue, 17 May 2016 15:11:40 -0500
Subject: [PATCH] HDFS-10417. Improve error message from
 checkBlockLocalPathAccess. Contributed by Tianyin Xu.

(cherry picked from commit 0942954e8ab6bef636c2648d0d5a0227a50f799c)
---
 .../java/org/apache/hadoop/hdfs/server/datanode/DataNode.java  | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java
index f9a047b3533..93536fdc7b2 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java
@@ -1690,7 +1690,8 @@ private void checkBlockLocalPathAccess() throws IOException {
       throw new AccessControlException(
           "Can't continue with getBlockLocalPathInfo() "
               + "authorization. The user " + currentUser
-              + " is not allowed to call getBlockLocalPathInfo");
+              + " is not configured in "
+              + DFSConfigKeys.DFS_BLOCK_LOCAL_PATH_ACCESS_USER_KEY);
     }
   }