| #!/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=`dirname "$0"` |
| bin=`cd "$bin"; pwd` |
| |
| . $bin/mapred-config.sh |
| |
| 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 "" |
| 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" |
| 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_MAPRED_HOME/webapps" ]; then |
| CLASSPATH=${CLASSPATH}:$HADOOP_MAPRED_HOME |
| fi |
| for f in $HADOOP_MAPRED_HOME/hadoop-mapred-*.jar; do |
| CLASSPATH=${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 |
| export CLASSPATH |
| exec "$JAVA" $JAVA_HEAP_MAX $HADOOP_OPTS $CLASS "$@" |