From cad1436570698eab01d9de73c00e176eba065091 Mon Sep 17 00:00:00 2001
From: Jason Lowe <jlowe@apache.org>
Date: Wed, 10 Feb 2016 21:53:08 +0000
Subject: [PATCH] HADOOP-12792.
 TestUserGroupInformation#testGetServerSideGroups fails in chroot. Contributed
 by Eric Badger (cherry picked from commit
 6f03959e4dc0bc11030fd7e30a025447a4d6948a)

---
 hadoop-common-project/hadoop-common/CHANGES.txt                | 3 +++
 .../org/apache/hadoop/security/TestUserGroupInformation.java   | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/hadoop-common-project/hadoop-common/CHANGES.txt b/hadoop-common-project/hadoop-common/CHANGES.txt
index 3fb94af9ff8..fd17be6fb2c 100644
--- a/hadoop-common-project/hadoop-common/CHANGES.txt
+++ b/hadoop-common-project/hadoop-common/CHANGES.txt
@@ -1038,6 +1038,9 @@ Release 2.7.3 - UNRELEASED
     HADOOP-12772. NetworkTopologyWithNodeGroup.getNodeGroup() can loop
     infinitely for invalid 'loc' values (Kuhu Shukla via kihwal)
 
+    HADOOP-12792. TestUserGroupInformation#testGetServerSideGroups fails in
+    chroot (Eric Badger via jlowe)
+
 Release 2.7.2 - 2016-01-25
 
   INCOMPATIBLE CHANGES
diff --git a/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/security/TestUserGroupInformation.java b/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/security/TestUserGroupInformation.java
index 1d47d0c9323..5cfa29a34ee 100644
--- a/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/security/TestUserGroupInformation.java
+++ b/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/security/TestUserGroupInformation.java
@@ -218,7 +218,7 @@ public class TestUserGroupInformation {
     // get the groups
     pp = Runtime.getRuntime().exec(Shell.WINDOWS ?
       Shell.getWinUtilsPath() + " groups -F"
-      : "id -Gn");
+      : "id -Gn " + userName);
     br = new BufferedReader(new InputStreamReader(pp.getInputStream()));
     String line = br.readLine();