From caf07897a732ea549c618d7804ef6852203851dd Mon Sep 17 00:00:00 2001
From: Arun Murthy <acmurthy@apache.org>
Date: Fri, 28 Oct 2011 01:56:57 +0000
Subject: [PATCH] MAPREDUCE-2736. Resurrecting bin/mapred and
 bin/mapred-config.sh.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1190128 13f79535-47bb-0310-9956-ffa450edef68
---
 hadoop-mapreduce-project/bin/mapred           | 119 ++++++++++++++++++
 hadoop-mapreduce-project/bin/mapred-config.sh |  38 ++++++
 hadoop-mapreduce-project/bin/start-mapred.sh  |  34 +++++
 hadoop-mapreduce-project/bin/stop-mapred.sh   |  31 +++++
 4 files changed, 222 insertions(+)
 create mode 100755 hadoop-mapreduce-project/bin/mapred
 create mode 100644 hadoop-mapreduce-project/bin/mapred-config.sh
 create mode 100755 hadoop-mapreduce-project/bin/start-mapred.sh
 create mode 100755 hadoop-mapreduce-project/bin/stop-mapred.sh

diff --git a/hadoop-mapreduce-project/bin/mapred b/hadoop-mapreduce-project/bin/mapred
new file mode 100755
index 0000000000..ba7298021f
--- /dev/null
+++ b/hadoop-mapreduce-project/bin/mapred
@@ -0,0 +1,119 @@
+#!/usr/bin/env bash
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+bin=`which $0`
+bin=`dirname ${bin}`
+bin=`cd "$bin"; pwd`
+
+if [ -e $bin/../libexec/mapred-config.sh ]; then
+  . $bin/../libexec/mapred-config.sh
+else
+  . "$bin/mapred-config.sh"
+fi
+
+function print_usage(){
+  echo "Usage: mapred [--config confdir] COMMAND"
+  echo "       where COMMAND is one of:"
+  echo "  mradmin              run a Map-Reduce admin client"
+  echo "  jobtracker           run the MapReduce job Tracker node" 
+  echo "  tasktracker          run a MapReduce task Tracker node" 
+  echo "  pipes                run a Pipes job"
+  echo "  job                  manipulate MapReduce jobs"
+  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 ""
+  echo "Most commands print help when invoked w/o parameters."
+}
+
+if [ $# = 0 ]; then
+  print_usage
+  exit
+fi
+
+COMMAND=$1
+shift
+
+if [ "$COMMAND" = "mradmin" ] ; then
+  CLASS=org.apache.hadoop.mapred.tools.MRAdmin
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "jobtracker" ] ; then
+  CLASS=org.apache.hadoop.mapred.JobTracker
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_JOBTRACKER_OPTS"
+elif [ "$COMMAND" = "tasktracker" ] ; then
+  CLASS=org.apache.hadoop.mapred.TaskTracker
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_TASKTRACKER_OPTS"
+elif [ "$COMMAND" = "job" ] ; then
+  CLASS=org.apache.hadoop.mapred.JobClient
+elif [ "$COMMAND" = "queue" ] ; then
+  CLASS=org.apache.hadoop.mapred.JobQueueClient
+elif [ "$COMMAND" = "pipes" ] ; then
+  CLASS=org.apache.hadoop.mapred.pipes.Submitter
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "sampler" ] ; then
+  CLASS=org.apache.hadoop.mapred.lib.InputSampler
+  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"
+else
+  echo $COMMAND - invalid command
+  print_usage
+  exit
+fi
+
+# for developers, add mapred classes to CLASSPATH
+if [ -d "$HADOOP_MAPRED_HOME/build/classes" ]; then
+  CLASSPATH=${CLASSPATH}:$HADOOP_MAPRED_HOME/build/classes
+fi
+if [ -d "$HADOOP_MAPRED_HOME/build/webapps" ]; then
+  CLASSPATH=${CLASSPATH}:$HADOOP_MAPRED_HOME/build
+fi
+if [ -d "$HADOOP_MAPRED_HOME/build/test/classes" ]; then
+  CLASSPATH=${CLASSPATH}:$HADOOP_MAPRED_HOME/build/test/classes
+fi
+if [ -d "$HADOOP_MAPRED_HOME/build/tools" ]; then
+  CLASSPATH=${CLASSPATH}:$HADOOP_MAPRED_HOME/build/tools
+fi
+
+# for releases, add core mapred jar & webapps to CLASSPATH
+if [ -d "$HADOOP_PREFIX/share/hadoop/mapreduce/webapps" ]; then
+  CLASSPATH=${CLASSPATH}:$HADOOP_PREFIX/share/hadoop/mapreduce
+fi
+for f in $HADOOP_MAPRED_HOME/share/hadoop-mapreduce/*.jar; do
+  CLASSPATH=${CLASSPATH}:$f;
+done
+
+# add libs to CLASSPATH
+for f in $HADOOP_MAPRED_HOME/lib/*.jar; do
+  CLASSPATH=${CLASSPATH}:$f;
+done
+
+if $cygwin; then
+  CLASSPATH=`cygpath -p -w "$CLASSPATH"`
+fi
+
+if [ "$COMMAND" = "classpath" ] ; then
+  echo $CLASSPATH
+  exit
+fi
+
+export CLASSPATH
+exec "$JAVA" $JAVA_HEAP_MAX $HADOOP_OPTS $CLASS "$@"
diff --git a/hadoop-mapreduce-project/bin/mapred-config.sh b/hadoop-mapreduce-project/bin/mapred-config.sh
new file mode 100644
index 0000000000..c79f4fb62f
--- /dev/null
+++ b/hadoop-mapreduce-project/bin/mapred-config.sh
@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# included in all the mapred scripts with source command
+# should not be executed directly
+
+bin=`which "$0"`
+bin=`dirname "${bin}"`
+bin=`cd "$bin"; pwd`
+
+if [ -e "$bin/../libexec/hadoop-config.sh" ]; then
+  . "$bin/../libexec/hadoop-config.sh"
+elif [ -e "${HADOOP_COMMON_HOME}/libexec/hadoop-config.sh" ]; then
+  . "$HADOOP_COMMON_HOME"/libexec/hadoop-config.sh
+elif [ -e "${HADOOP_COMMON_HOME}/bin/hadoop-config.sh" ]; then
+  . "$HADOOP_COMMON_HOME"/bin/hadoop-config.sh
+elif [ -e "${HADOOP_HOME}/bin/hadoop-config.sh" ]; then
+  . "$HADOOP_HOME"/bin/hadoop-config.sh
+elif [ -e "${HADOOP_MAPRED_HOME}/bin/hadoop-config.sh" ]; then
+  . "$HADOOP_MAPRED_HOME"/bin/hadoop-config.sh
+else
+  echo "Hadoop common not found."
+  exit
+fi
diff --git a/hadoop-mapreduce-project/bin/start-mapred.sh b/hadoop-mapreduce-project/bin/start-mapred.sh
new file mode 100755
index 0000000000..d511aacbc2
--- /dev/null
+++ b/hadoop-mapreduce-project/bin/start-mapred.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# Start hadoop map reduce daemons.  Run this on master node.
+
+bin=`dirname "${BASH_SOURCE-$0}"`
+bin=`cd "$bin"; pwd`
+
+if [ -e $bin/../libexec/mapred-config.sh ]; then
+  . $bin/../libexec/mapred-config.sh
+else
+  . "$bin/mapred-config.sh"
+fi
+
+
+# start mapred daemons
+# start jobtracker first to minimize connection errors at startup
+"$HADOOP_PREFIX"/bin/hadoop-daemon.sh --config $HADOOP_CONF_DIR --script "$bin"/mapred start jobtracker
+"$HADOOP_PREFIX"/bin/hadoop-daemons.sh --config $HADOOP_CONF_DIR --script "$bin"/mapred start tasktracker
diff --git a/hadoop-mapreduce-project/bin/stop-mapred.sh b/hadoop-mapreduce-project/bin/stop-mapred.sh
new file mode 100755
index 0000000000..471593eb4b
--- /dev/null
+++ b/hadoop-mapreduce-project/bin/stop-mapred.sh
@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# Stop hadoop map reduce daemons.  Run this on master node.
+
+bin=`dirname "${BASH_SOURCE-$0}"`
+bin=`cd "$bin"; pwd`
+
+if [ -e $bin/../libexec/mapred-config.sh ]; then
+  . $bin/../libexec/mapred-config.sh
+else
+  . "$bin/mapred-config.sh"
+fi
+
+"$HADOOP_PREFIX"/bin/hadoop-daemon.sh --config $HADOOP_CONF_DIR --script "$bin"/mapred stop jobtracker
+"$HADOOP_PREFIX"/bin/hadoop-daemons.sh --config $HADOOP_CONF_DIR --script "$bin"/mapred stop tasktracker