From ccc43621aba4f1fc9ca880e294a66862493805b0 Mon Sep 17 00:00:00 2001
From: luhuachao <luhuachao@cmss.chinamobile.com>
Date: Tue, 15 Jan 2019 13:15:18 +0000
Subject: [PATCH] HADOOP-16019. ZKDelegationTokenSecretManager won't log
 exception message occured in function setJaasConfiguration.

Contributed by luhuachao.
---
 .../token/delegation/ZKDelegationTokenSecretManager.java        | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/ZKDelegationTokenSecretManager.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/ZKDelegationTokenSecretManager.java
index 88bd29bd73..dca9e2f915 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/ZKDelegationTokenSecretManager.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/ZKDelegationTokenSecretManager.java
@@ -204,7 +204,7 @@ public ZKDelegationTokenSecretManager(Configuration conf) {
                 .retryPolicy(
                     new RetryNTimes(numRetries, sessionT / numRetries));
       } catch (Exception ex) {
-        throw new RuntimeException("Could not Load ZK acls or auth");
+        throw new RuntimeException("Could not Load ZK acls or auth: " + ex, ex);
       }
       zkClient = builder.ensembleProvider(new FixedEnsembleProvider(connString))
           .build();