From 84b7010a305791c69d519d37fc0292c013e1a873 Mon Sep 17 00:00:00 2001
From: Gary Helmling <garyh@apache.org>
Date: Thu, 14 Jul 2016 14:15:19 -0700
Subject: [PATCH] HBASE-16231 Support client keytab login for integration tests

---
 .../apache/hadoop/hbase/IntegrationTestBase.java  | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/hbase-it/src/test/java/org/apache/hadoop/hbase/IntegrationTestBase.java b/hbase-it/src/test/java/org/apache/hadoop/hbase/IntegrationTestBase.java
index 39295241e6c..d3433c75184 100644
--- a/hbase-it/src/test/java/org/apache/hadoop/hbase/IntegrationTestBase.java
+++ b/hbase-it/src/test/java/org/apache/hadoop/hbase/IntegrationTestBase.java
@@ -117,6 +117,17 @@ public abstract class IntegrationTestBase extends AbstractHBaseTool {
 
   @Override
   protected int doWork() throws Exception {
+    ChoreService choreService = null;
+
+    // Launches chore for refreshing kerberos credentials if security is enabled.
+    // Please see http://hbase.apache.org/book.html#_running_canary_in_a_kerberos_enabled_cluster
+    // for more details.
+    final ScheduledChore authChore = AuthUtil.getAuthChore(conf);
+    if (authChore != null) {
+      choreService = new ChoreService("INTEGRATION_TEST");
+      choreService.scheduleChore(authChore);
+    }
+
     setUp();
     int result = -1;
     try {
@@ -125,6 +136,10 @@ public abstract class IntegrationTestBase extends AbstractHBaseTool {
       cleanUp();
     }
 
+    if (choreService != null) {
+      choreService.shutdown();
+    }
+
     return result;
   }