fc1bf705e9
in MAPREDUCE-739. Contributed by Mahadev Konar git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@794943 13f79535-47bb-0310-9956-ffa450edef68
119 lines
3.9 KiB
Bash
Executable File
119 lines
3.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# This script runs the hadoop core commands.
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bin=`dirname "$0"`
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bin=`cd "$bin"; pwd`
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. "$bin"/hadoop-config.sh
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function print_usage(){
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echo "Usage: hadoop [--config confdir] COMMAND"
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echo " where COMMAND is one of:"
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echo " fs run a generic filesystem user client"
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echo " version print the version"
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echo " jar <jar> run a jar file"
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echo " distcp <srcurl> <desturl> copy file or directories recursively"
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echo " archive -archiveName NAME -p <parent path> <src>* <dest> create a hadoop archive"
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echo " classpath prints the class path needed to get the"
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echo " Hadoop jar and the required libraries"
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echo " daemonlog get/set the log level for each daemon"
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echo " or"
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echo " CLASSNAME run the class named CLASSNAME"
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echo ""
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echo "Most commands print help when invoked w/o parameters."
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}
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if [ $# = 0 ]; then
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print_usage
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exit
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fi
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COMMAND=$1
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case $COMMAND in
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#hdfs commands
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namenode|secondarynamenode|datanode|dfs|dfsadmin|fsck|balancer)
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echo "DEPRECATED: Use of this script to execute hdfs command is deprecated."
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echo "Instead use the hdfs command for it."
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echo ""
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#try to locate hdfs and if present, delegate to it.
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if [ -f "${HADOOP_HDFS_HOME}"/bin/hdfs ]; then
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exec "${HADOOP_HDFS_HOME}"/bin/hdfs $*
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else
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echo "HDFS not found."
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exit
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fi
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;;
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#mapred commands
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mradmin|jobtracker|tasktracker|pipes|job|queue)
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echo "DEPRECATED: Use of this script to execute mapred command is deprecated."
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echo "Instead use the mapred command for it."
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echo ""
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#try to locate mapred and if present, delegate to it.
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if [ -f "${HADOOP_MAPRED_HOME}"/bin/mapred ]; then
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exec "${HADOOP_MAPRED_HOME}"/bin/mapred $*
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else
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echo "MAPRED not found."
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exit
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fi
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;;
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classpath)
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if $cygwin; then
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CLASSPATH=`cygpath -p -w "$CLASSPATH"`
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fi
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echo $CLASSPATH
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exit
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;;
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#core commands
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*)
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# the core commands
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if [ "$COMMAND" = "fs" ] ; then
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CLASS=org.apache.hadoop.fs.FsShell
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HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
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elif [ "$COMMAND" = "version" ] ; then
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CLASS=org.apache.hadoop.util.VersionInfo
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HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
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elif [ "$COMMAND" = "jar" ] ; then
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CLASS=org.apache.hadoop.util.RunJar
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elif [ "$COMMAND" = "distcp" ] ; then
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CLASS=org.apache.hadoop.tools.DistCp
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CLASSPATH=${CLASSPATH}:${TOOL_PATH}
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HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
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elif [ "$COMMAND" = "daemonlog" ] ; then
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CLASS=org.apache.hadoop.log.LogLevel
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HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
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elif [ "$COMMAND" = "archive" ] ; then
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CLASS=org.apache.hadoop.tools.HadoopArchives
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CLASSPATH=${CLASSPATH}:${TOOL_PATH}
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HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
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else
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CLASS=$COMMAND
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fi
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shift
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if $cygwin; then
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CLASSPATH=`cygpath -p -w "$CLASSPATH"`
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fi
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exec "$JAVA" $JAVA_HEAP_MAX $HADOOP_OPTS -classpath "$CLASSPATH" $CLASS "$@"
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;;
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esac
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