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#!/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.
# The Hadoop command script
#
# Environment Variables
#
# JAVA_HOME The java implementation to use. Overrides JAVA_HOME.
#
# YARN_CLASSPATH Extra Java CLASSPATH entries.
#
# YARN_HEAPSIZE The maximum amount of heap to use, in MB.
# Default is 1000.
#
# YARN_{COMMAND}_HEAPSIZE overrides YARN_HEAPSIZE for a given command
# eg YARN_NODEMANAGER_HEAPSIZE sets the heap
# size for the NodeManager. If you set the
# heap size in YARN_{COMMAND}_OPTS or YARN_OPTS
# they take precedence.
#
# YARN_OPTS Extra Java runtime options.
#
# YARN_CLIENT_OPTS when the respective command is run.
# YARN_{COMMAND}_OPTS etc YARN_NODEMANAGER_OPTS applies to NodeManager
# for e.g. YARN_CLIENT_OPTS applies to
# more than one command (fs, dfs, fsck,
# dfsadmin etc)
#
# YARN_CONF_DIR Alternate conf dir. Default is ${HADOOP_YARN_HOME}/conf.
#
# YARN_ROOT_LOGGER The root appender. Default is INFO,console
#
bin=`dirname "${BASH_SOURCE-$0}"`
bin=`cd "$bin"; pwd`
DEFAULT_LIBEXEC_DIR="$bin"/../libexec
HADOOP_LIBEXEC_DIR=${HADOOP_LIBEXEC_DIR:-$DEFAULT_LIBEXEC_DIR}
. $HADOOP_LIBEXEC_DIR/yarn-config.sh
function print_usage(){
echo "Usage: yarn [--config confdir] COMMAND"
echo "where COMMAND is one of:"
echo " resourcemanager run the ResourceManager"
echo " nodemanager run a nodemanager on each slave"
echo " rmadmin admin tools"
echo " version print the version"
echo " jar <jar> run a jar file"
echo " application prints application(s) report/kill application"
echo " node prints node report(s)"
echo " logs dump container logs"
echo " classpath prints the class path needed to get the"
echo " Hadoop jar and the required libraries"
echo " daemonlog get/set the log level for each daemon"
echo " or"
echo " CLASSNAME run the class named CLASSNAME"
echo "Most commands print help when invoked w/o parameters."
}
# if no args specified, show usage
if [ $# = 0 ]; then
print_usage
exit 1
fi
# get arguments
COMMAND=$1
shift
case $COMMAND in
# usage flags
--help|-help|-h)
print_usage
exit
;;
esac
if [ -f "${YARN_CONF_DIR}/yarn-env.sh" ]; then
. "${YARN_CONF_DIR}/yarn-env.sh"
fi
# some Java parameters
if [ "$JAVA_HOME" != "" ]; then
#echo "run java in $JAVA_HOME"
JAVA_HOME=$JAVA_HOME
fi
if [ "$JAVA_HOME" = "" ]; then
echo "Error: JAVA_HOME is not set."
exit 1
fi
JAVA=$JAVA_HOME/bin/java
JAVA_HEAP_MAX=-Xmx1000m
# check envvars which might override default args
if [ "$YARN_HEAPSIZE" != "" ]; then
#echo "run with heapsize $YARN_HEAPSIZE"
JAVA_HEAP_MAX="-Xmx""$YARN_HEAPSIZE""m"
#echo $JAVA_HEAP_MAX
fi
# CLASSPATH initially contains $HADOOP_CONF_DIR & $YARN_CONF_DIR
if [ ! -d "$HADOOP_CONF_DIR" ]; then
echo No HADOOP_CONF_DIR set.
echo Please specify it either in yarn-env.sh or in the environment.
exit 1
fi
CLASSPATH="${HADOOP_CONF_DIR}:${YARN_CONF_DIR}:${CLASSPATH}"
# for developers, add Hadoop classes to CLASSPATH
if [ -d "$HADOOP_YARN_HOME/yarn-api/target/classes" ]; then
CLASSPATH=${CLASSPATH}:$HADOOP_YARN_HOME/yarn-api/target/classes
fi
if [ -d "$HADOOP_YARN_HOME/yarn-common/target/classes" ]; then
CLASSPATH=${CLASSPATH}:$HADOOP_YARN_HOME/yarn-common/target/classes
fi
if [ -d "$HADOOP_YARN_HOME/yarn-mapreduce/target/classes" ]; then
CLASSPATH=${CLASSPATH}:$HADOOP_YARN_HOME/yarn-mapreduce/target/classes
fi
if [ -d "$HADOOP_YARN_HOME/yarn-master-worker/target/classes" ]; then
CLASSPATH=${CLASSPATH}:$HADOOP_YARN_HOME/yarn-master-worker/target/classes
fi
if [ -d "$HADOOP_YARN_HOME/yarn-server/yarn-server-nodemanager/target/classes" ]; then
CLASSPATH=${CLASSPATH}:$HADOOP_YARN_HOME/yarn-server/yarn-server-nodemanager/target/classes
fi
if [ -d "$HADOOP_YARN_HOME/yarn-server/yarn-server-common/target/classes" ]; then
CLASSPATH=${CLASSPATH}:$HADOOP_YARN_HOME/yarn-server/yarn-server-common/target/classes
fi
if [ -d "$HADOOP_YARN_HOME/yarn-server/yarn-server-resourcemanager/target/classes" ]; then
CLASSPATH=${CLASSPATH}:$HADOOP_YARN_HOME/yarn-server/yarn-server-resourcemanager/target/classes
fi
if [ -d "$HADOOP_YARN_HOME/build/test/classes" ]; then
CLASSPATH=${CLASSPATH}:$HADOOP_YARN_HOME/target/test/classes
fi
if [ -d "$HADOOP_YARN_HOME/build/tools" ]; then
CLASSPATH=${CLASSPATH}:$HADOOP_YARN_HOME/build/tools
fi
CLASSPATH=${CLASSPATH}:$HADOOP_YARN_HOME/${YARN_DIR}/*
CLASSPATH=${CLASSPATH}:$HADOOP_YARN_HOME/${YARN_LIB_JARS_DIR}/*
# so that filenames w/ spaces are handled correctly in loops below
IFS=
# default log directory & file
if [ "$YARN_LOG_DIR" = "" ]; then
YARN_LOG_DIR="$HADOOP_YARN_HOME/logs"
fi
if [ "$YARN_LOGFILE" = "" ]; then
YARN_LOGFILE='yarn.log'
fi
# restore ordinary behaviour
unset IFS
# figure out which class to run
if [ "$COMMAND" = "classpath" ] ; then
echo $CLASSPATH
exit
elif [ "$COMMAND" = "rmadmin" ] ; then
CLASS='org.apache.hadoop.yarn.client.cli.RMAdminCLI'
YARN_OPTS="$YARN_OPTS $YARN_CLIENT_OPTS"
elif [ "$COMMAND" = "application" ] ; then
CLASS=org.apache.hadoop.yarn.client.cli.ApplicationCLI
YARN_OPTS="$YARN_OPTS $YARN_CLIENT_OPTS"
elif [ "$COMMAND" = "node" ] ; then
CLASS=org.apache.hadoop.yarn.client.cli.NodeCLI
YARN_OPTS="$YARN_OPTS $YARN_CLIENT_OPTS"
elif [ "$COMMAND" = "resourcemanager" ] ; then
CLASSPATH=${CLASSPATH}:$YARN_CONF_DIR/rm-config/log4j.properties
CLASS='org.apache.hadoop.yarn.server.resourcemanager.ResourceManager'
YARN_OPTS="$YARN_OPTS $YARN_RESOURCEMANAGER_OPTS"
if [ "$YARN_RESOURCEMANAGER_HEAPSIZE" != "" ]; then
JAVA_HEAP_MAX="-Xmx""$YARN_RESOURCEMANAGER_HEAPSIZE""m"
fi
elif [ "$COMMAND" = "nodemanager" ] ; then
CLASSPATH=${CLASSPATH}:$YARN_CONF_DIR/nm-config/log4j.properties
CLASS='org.apache.hadoop.yarn.server.nodemanager.NodeManager'
YARN_OPTS="$YARN_OPTS $YARN_NODEMANAGER_OPTS"
if [ "$YARN_NODEMANAGER_HEAPSIZE" != "" ]; then
JAVA_HEAP_MAX="-Xmx""$YARN_NODEMANAGER_HEAPSIZE""m"
fi
elif [ "$COMMAND" = "proxyserver" ] ; then
CLASS='org.apache.hadoop.yarn.server.webproxy.WebAppProxyServer'
YARN_OPTS="$YARN_OPTS $YARN_PROXYSERVER_OPTS"
if [ "$YARN_PROXYSERVER_HEAPSIZE" != "" ]; then
JAVA_HEAP_MAX="-Xmx""$YARN_PROXYSERVER_HEAPSIZE""m"
fi
elif [ "$COMMAND" = "version" ] ; then
CLASS=org.apache.hadoop.util.VersionInfo
YARN_OPTS="$YARN_OPTS $YARN_CLIENT_OPTS"
elif [ "$COMMAND" = "jar" ] ; then
CLASS=org.apache.hadoop.util.RunJar
YARN_OPTS="$YARN_OPTS $YARN_CLIENT_OPTS"
elif [ "$COMMAND" = "logs" ] ; then
CLASS=org.apache.hadoop.yarn.client.cli.LogsCLI
YARN_OPTS="$YARN_OPTS $YARN_CLIENT_OPTS"
elif [ "$COMMAND" = "daemonlog" ] ; then
CLASS=org.apache.hadoop.log.LogLevel
YARN_OPTS="$YARN_OPTS $YARN_CLIENT_OPTS"
else
CLASS=$COMMAND
fi
YARN_OPTS="$YARN_OPTS -Dhadoop.log.dir=$YARN_LOG_DIR"
YARN_OPTS="$YARN_OPTS -Dyarn.log.dir=$YARN_LOG_DIR"
YARN_OPTS="$YARN_OPTS -Dhadoop.log.file=$YARN_LOGFILE"
YARN_OPTS="$YARN_OPTS -Dyarn.log.file=$YARN_LOGFILE"
YARN_OPTS="$YARN_OPTS -Dyarn.home.dir=$HADOOP_YARN_HOME"
YARN_OPTS="$YARN_OPTS -Dhadoop.home.dir=$HADOOP_YARN_HOME"
YARN_OPTS="$YARN_OPTS -Dhadoop.root.logger=${YARN_ROOT_LOGGER:-INFO,console}"
YARN_OPTS="$YARN_OPTS -Dyarn.root.logger=${YARN_ROOT_LOGGER:-INFO,console}"
if [ "x$JAVA_LIBRARY_PATH" != "x" ]; then
YARN_OPTS="$YARN_OPTS -Djava.library.path=$JAVA_LIBRARY_PATH"
fi
exec "$JAVA" -Dproc_$COMMAND $JAVA_HEAP_MAX $YARN_OPTS -classpath "$CLASSPATH" $CLASS "$@"
fi
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