From 803828b996f38f63ee1a38572dbcdae6bd713da3 Mon Sep 17 00:00:00 2001
From: Siddharth Seth <sseth@apache.org>
Date: Wed, 3 Oct 2012 21:24:55 +0000
Subject: [PATCH] MAPREDUCE-4123. Remove the 'mapred groups' command, which is
 no longer supported. (Contributed by Devaraj K)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1393775 13f79535-47bb-0310-9956-ffa450edef68
---
 hadoop-mapreduce-project/CHANGES.txt | 3 +++
 hadoop-mapreduce-project/bin/mapred  | 7 ++-----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/hadoop-mapreduce-project/CHANGES.txt b/hadoop-mapreduce-project/CHANGES.txt
index 2125505bb5..2a7e543e74 100644
--- a/hadoop-mapreduce-project/CHANGES.txt
+++ b/hadoop-mapreduce-project/CHANGES.txt
@@ -142,6 +142,9 @@ Release 2.0.3-alpha - Unreleased
 
   INCOMPATIBLE CHANGES
 
+    MAPREDUCE-4123. Remove the 'mapred groups' command, which is no longer
+    supported. (Devaraj K via sseth)
+
   NEW FEATURES
 
   IMPROVEMENTS
diff --git a/hadoop-mapreduce-project/bin/mapred b/hadoop-mapreduce-project/bin/mapred
index 930885cdf1..c446414485 100755
--- a/hadoop-mapreduce-project/bin/mapred
+++ b/hadoop-mapreduce-project/bin/mapred
@@ -35,7 +35,6 @@ function print_usage(){
   echo "  queue                get information regarding JobQueues"
   echo "  classpath            prints the class path needed for running"
   echo "                       mapreduce subcommands"
-  echo "  groups               get the groups which users belong to"
   echo "  historyserver        run job history servers as a standalone daemon"
   echo "  distcp <srcurl> <desturl> copy file or directories recursively"
   echo "  archive -archiveName NAME -p <parent path> <src>* <dest> create a hadoop archive"
@@ -63,9 +62,6 @@ elif [ "$COMMAND" = "sampler" ] ; then
   HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
 elif [ "$COMMAND" = "classpath" ] ; then
   echo -n 
-elif [ "$COMMAND" = "groups" ] ; then
-  CLASS=org.apache.hadoop.mapred.tools.GetGroups
-  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
 elif [ "$COMMAND" = "historyserver" ] ; then
   CLASS=org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer
   HADOOP_OPTS="$HADOOP_OPTS -Dmapred.jobsummary.logger=${HADOOP_JHS_LOGGER:-INFO,console} $HADOOP_JOB_HISTORYSERVER_OPTS"
@@ -74,7 +70,8 @@ elif [ "$COMMAND" = "historyserver" ] ; then
   fi
 elif [ "$COMMAND" = "mradmin" ] \
     || [ "$COMMAND" = "jobtracker" ] \
-    || [ "$COMMAND" = "tasktracker" ] ; then
+    || [ "$COMMAND" = "tasktracker" ] \
+    || [ "$COMMAND" = "groups" ] ; then
   echo "Sorry, the $COMMAND command is no longer supported."
   echo "You may find similar functionality with the \"yarn\" shell command."
   print_usage