hadoop/hadoop-yarn-project/hadoop-yarn/bin/yarn
2015-02-12 18:01:28 -08:00

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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.
function hadoop_usage
{
echo "Usage: yarn [--config confdir] [COMMAND | CLASSNAME]"
echo " CLASSNAME run the class named CLASSNAME"
echo " or"
echo " where COMMAND is one of:"
echo " application prints application(s) report/kill application"
echo " applicationattempt prints applicationattempt(s) report"
echo " classpath prints the class path needed to get the"
echo " Hadoop jar and the required libraries"
echo " container prints container(s) report"
echo " daemonlog get/set the log level for each daemon"
echo " jar <jar> run a jar file"
echo " logs dump container logs"
echo " node prints node report(s)"
echo " nodemanager run a nodemanager on each slave"
echo " proxyserver run the web app proxy server"
echo " queue prints queue information"
echo " resourcemanager run the ResourceManager"
echo " resourcemanager -format-state-store deletes the RMStateStore"
echo " rmadmin admin tools"
echo " scmadmin SharedCacheManager admin tools"
echo " sharedcachemanager run the SharedCacheManager daemon"
echo " timelineserver run the timeline server"
echo " version print the version"
echo ""
echo "Most commands print help when invoked w/o parameters."
}
# let's locate libexec...
if [[ -n "${HADOOP_PREFIX}" ]]; then
DEFAULT_LIBEXEC_DIR="${HADOOP_PREFIX}/libexec"
else
this="${BASH_SOURCE-$0}"
bin=$(cd -P -- "$(dirname -- "${this}")" >/dev/null && pwd -P)
DEFAULT_LIBEXEC_DIR="${bin}/../libexec"
fi
HADOOP_LIBEXEC_DIR="${HADOOP_LIBEXEC_DIR:-$DEFAULT_LIBEXEC_DIR}"
# shellcheck disable=SC2034
HADOOP_NEW_CONFIG=true
if [[ -f "${HADOOP_LIBEXEC_DIR}/yarn-config.sh" ]]; then
. "${HADOOP_LIBEXEC_DIR}/yarn-config.sh"
else
echo "ERROR: Cannot execute ${HADOOP_LIBEXEC_DIR}/yarn-config.sh." 2>&1
exit 1
fi
# if no args specified, show usage
if [[ $# = 0 ]]; then
hadoop_exit_with_usage 1
fi
# get arguments
COMMAND=$1
shift
case "${COMMAND}" in
application|applicationattempt|container)
CLASS=org.apache.hadoop.yarn.client.cli.ApplicationCLI
hadoop_debug "Append YARN_CLIENT_OPTS onto HADOOP_OPTS"
HADOOP_OPTS="${HADOOP_OPTS} ${YARN_CLIENT_OPTS}"
set -- "${COMMAND}" "$@"
;;
classpath)
hadoop_do_classpath_subcommand "$@"
;;
daemonlog)
CLASS=org.apache.hadoop.log.LogLevel
hadoop_debug "Append YARN_CLIENT_OPTS onto HADOOP_OPTS"
HADOOP_OPTS="${HADOOP_OPTS} ${YARN_CLIENT_OPTS}"
;;
jar)
CLASS=org.apache.hadoop.util.RunJar
hadoop_debug "Append YARN_CLIENT_OPTS onto HADOOP_OPTS"
HADOOP_OPTS="${HADOOP_OPTS} ${YARN_CLIENT_OPTS}"
;;
historyserver)
supportdaemonization="true"
echo "DEPRECATED: Use of this command to start the timeline server is deprecated." 1>&2
echo "Instead use the timelineserver command for it." 1>&2
echo "Starting the History Server anyway..." 1>&2
CLASS='org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryServer'
;;
logs)
CLASS=org.apache.hadoop.yarn.client.cli.LogsCLI
hadoop_debug "Append YARN_CLIENT_OPTS onto HADOOP_OPTS"
HADOOP_OPTS="${HADOOP_OPTS} ${YARN_CLIENT_OPTS}"
;;
node)
CLASS=org.apache.hadoop.yarn.client.cli.NodeCLI
hadoop_debug "Append YARN_CLIENT_OPTS onto HADOOP_OPTS"
HADOOP_OPTS="${HADOOP_OPTS} ${YARN_CLIENT_OPTS}"
;;
nodemanager)
supportdaemonization="true"
CLASS='org.apache.hadoop.yarn.server.nodemanager.NodeManager'
hadoop_debug "Append YARN_NODEMANAGER_OPTS onto HADOOP_OPTS"
HADOOP_OPTS="${HADOOP_OPTS} ${YARN_NODEMANAGER_OPTS}"
# Backwards compatibility
if [[ -n "${YARN_NODEMANAGER_HEAPSIZE}" ]]; then
HADOOP_HEAPSIZE_MAX="${YARN_NODEMANAGER_HEAPSIZE}"
fi
;;
proxyserver)
supportdaemonization="true"
CLASS='org.apache.hadoop.yarn.server.webproxy.WebAppProxyServer'
hadoop_debug "Append YARN_PROXYSERVER_OPTS onto HADOOP_OPTS"
HADOOP_OPTS="${HADOOP_OPTS} ${YARN_PROXYSERVER_OPTS}"
# Backwards compatibility
if [[ -n "${YARN_PROXYSERVER_HEAPSIZE}" ]]; then
HADOOP_HEAPSIZE_MAX="${YARN_PROXYSERVER_HEAPSIZE}"
fi
;;
queue)
CLASS=org.apache.hadoop.yarn.client.cli.QueueCLI
hadoop_debug "Append YARN_CLIENT_OPTS onto HADOOP_OPTS"
HADOOP_OPTS="${HADOOP_OPTS} ${YARN_CLIENT_OPTS}"
;;
resourcemanager)
supportdaemonization="true"
CLASS='org.apache.hadoop.yarn.server.resourcemanager.ResourceManager'
HADOOP_OPTS="${HADOOP_OPTS} ${YARN_RESOURCEMANAGER_OPTS}"
hadoop_debug "Append YARN_RESOURCEMANAGER_OPTS onto HADOOP_OPTS"
# Backwards compatibility
if [[ -n "${YARN_RESOURCEMANAGER_HEAPSIZE}" ]]; then
HADOOP_HEAPSIZE_MAX="${YARN_RESOURCEMANAGER_HEAPSIZE}"
fi
;;
rmadmin)
CLASS='org.apache.hadoop.yarn.client.cli.RMAdminCLI'
hadoop_debug "Append YARN_CLIENT_OPTS onto HADOOP_OPTS"
HADOOP_OPTS="${HADOOP_OPTS} ${YARN_CLIENT_OPTS}"
;;
scmadmin)
CLASS='org.apache.hadoop.yarn.client.SCMAdmin'
hadoop_debug "Append YARN_CLIENT_OPTS onto HADOOP_OPTS"
HADOOP_OPTS="${HADOOP_OPTS} ${YARN_CLIENT_OPTS}"
;;
sharedcachemanager)
supportdaemonization="true"
CLASS='org.apache.hadoop.yarn.server.sharedcachemanager.SharedCacheManager'
hadoop_debug "Append YARN_SHAREDCACHEMANAGER_OPTS onto HADOOP_OPTS"
HADOOP_OPTS="${HADOOP_OPTS} ${YARN_SHAREDCACHEMANAGER_OPTS}"
;;
timelineserver)
supportdaemonization="true"
CLASS='org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryServer'
hadoop_debug "Append YARN_TIMELINESERVER_OPTS onto HADOOP_OPTS"
HADOOP_OPTS="${HADOOP_OPTS} ${YARN_TIMELINESERVER_OPTS}"
# Backwards compatibility
if [[ -n "${YARN_TIMELINESERVER_HEAPSIZE}" ]]; then
HADOOP_HEAPSIZE_MAX="${YARN_TIMELINESERVER_HEAPSIZE}"
fi
;;
version)
CLASS=org.apache.hadoop.util.VersionInfo
hadoop_debug "Append YARN_CLIENT_OPTS onto HADOOP_OPTS"
HADOOP_OPTS="${HADOOP_OPTS} ${YARN_CLIENT_OPTS}"
;;
*)
CLASS="${COMMAND}"
if ! hadoop_validate_classname "${CLASS}"; then
hadoop_exit_with_usage 1
fi
;;
esac
hadoop_verify_user "${COMMAND}"
if [[ ${HADOOP_SLAVE_MODE} = true ]]; then
hadoop_common_slave_mode_execute "${HADOOP_YARN_HOME}/bin/yarn" "${HADOOP_USER_PARAMS[@]}"
exit $?
fi
daemon_outfile="${HADOOP_LOG_DIR}/hadoop-${HADOOP_IDENT_STRING}-${COMMAND}-${HOSTNAME}.out"
daemon_pidfile="${HADOOP_PID_DIR}/hadoop-${HADOOP_IDENT_STRING}-${COMMAND}.pid"
if [[ "${HADOOP_DAEMON_MODE}" != "default" ]]; then
# shellcheck disable=SC2034
HADOOP_ROOT_LOGGER="${HADOOP_DAEMON_ROOT_LOGGER}"
HADOOP_LOGFILE="hadoop-${HADOOP_IDENT_STRING}-${COMMAND}-${HOSTNAME}.log"
fi
hadoop_finalize
if [[ -n "${supportdaemonization}" ]]; then
if [[ -n "${secure_service}" ]]; then
hadoop_secure_daemon_handler "${HADOOP_DAEMON_MODE}" "${COMMAND}" \
"${CLASS}" "${daemon_pidfile}" "${daemon_outfile}" \
"${priv_pidfile}" "${priv_outfile}" "${priv_errfile}" "$@"
else
hadoop_daemon_handler "${HADOOP_DAEMON_MODE}" "${COMMAND}" "${CLASS}" \
"${daemon_pidfile}" "${daemon_outfile}" "$@"
fi
exit $?
else
hadoop_java_exec "${COMMAND}" "${CLASS}" "$@"
fi