hadoop/hadoop-common-project/hadoop-common/src/main/bin/hadoop-daemon.sh
2014-08-19 12:11:17 +00:00

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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: hadoop-daemon.sh [--config confdir] (start|stop|status) <hadoop-command> <args...>"
}
# 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}/hdfs-config.sh" ]]; then
. "${HADOOP_LIBEXEC_DIR}/hdfs-config.sh"
else
echo "ERROR: Cannot execute ${HADOOP_LIBEXEC_DIR}/hdfs-config.sh." 2>&1
exit 1
fi
if [[ $# = 0 ]]; then
hadoop_exit_with_usage 1
fi
daemonmode=$1
shift
if [[ -z "${HADOOP_HDFS_HOME}" ]]; then
hdfsscript="${HADOOP_PREFIX}/bin/hdfs"
else
hdfsscript="${HADOOP_HDFS_HOME}/bin/hdfs"
fi
exec "$hdfsscript" --config "${HADOOP_CONF_DIR}" --daemon "${daemonmode}" "$@"