a196766ea0
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1134994 13f79535-47bb-0310-9956-ffa450edef68
98 lines
2.7 KiB
Bash
Executable File
98 lines
2.7 KiB
Bash
Executable File
#!/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.
|
|
|
|
|
|
# Start hadoop dfs daemons.
|
|
# Optinally upgrade or rollback dfs state.
|
|
# Run this on master node.
|
|
|
|
usage="Usage: start-dfs.sh [-upgrade|-rollback]"
|
|
|
|
bin=`dirname "${BASH_SOURCE-$0}"`
|
|
bin=`cd "$bin"; pwd`
|
|
|
|
if [ -e "$bin/../libexec/hdfs-config.sh" ]; then
|
|
. "$bin"/../libexec/hdfs-config.sh
|
|
else
|
|
. "$bin/hdfs-config.sh"
|
|
fi
|
|
|
|
# get arguments
|
|
if [ $# -ge 1 ]; then
|
|
nameStartOpt="$1"
|
|
shift
|
|
case "$nameStartOpt" in
|
|
(-upgrade)
|
|
;;
|
|
(-rollback)
|
|
dataStartOpt="$nameStartOpt"
|
|
;;
|
|
(*)
|
|
echo $usage
|
|
exit 1
|
|
;;
|
|
esac
|
|
fi
|
|
|
|
#---------------------------------------------------------
|
|
# namenodes
|
|
|
|
NAMENODES=$($HADOOP_PREFIX/bin/hdfs getconf -namenodes)
|
|
|
|
echo "Starting namenodes on [$NAMENODES]"
|
|
|
|
"$HADOOP_PREFIX/bin/hadoop-daemons.sh" \
|
|
--config "$HADOOP_CONF_DIR" \
|
|
--hostnames "$NAMENODES" \
|
|
--script "$bin/hdfs" start namenode $nameStartOpt
|
|
|
|
#---------------------------------------------------------
|
|
# datanodes (using defalut slaves file)
|
|
|
|
if [ -n "$HADOOP_SECURE_DN_USER" ]; then
|
|
echo \
|
|
"Attempting to start secure cluster, skipping datanodes. " \
|
|
"Run start-secure-dns.sh as root to complete startup."
|
|
else
|
|
"$HADOOP_PREFIX/bin/hadoop-daemons.sh" \
|
|
--config "$HADOOP_CONF_DIR" \
|
|
--script "$bin/hdfs" start datanode $dataStartOpt
|
|
fi
|
|
|
|
#---------------------------------------------------------
|
|
# secondary namenodes (if any)
|
|
|
|
# if there are no secondary namenodes configured it returns
|
|
# 0.0.0.0 or empty string
|
|
SECONDARY_NAMENODES=$($HADOOP_PREFIX/bin/hdfs getconf -secondarynamenodes 2>&-)
|
|
SECONDARY_NAMENODES=${SECONDARY_NAMENODES:='0.0.0.0'}
|
|
|
|
if [ "$SECONDARY_NAMENODES" = '0.0.0.0' ] ; then
|
|
echo \
|
|
"Secondary namenodes are not configured. " \
|
|
"Cannot start secondary namenodes."
|
|
else
|
|
echo "Starting secondary namenodes [$SECONDARY_NAMENODES]"
|
|
|
|
"$HADOOP_PREFIX/bin/hadoop-daemons.sh" \
|
|
--config "$HADOOP_CONF_DIR" \
|
|
--hostnames "$SECONDARY_NAMENODES" \
|
|
--script "$bin/hdfs" start secondarynamenode
|
|
fi
|
|
|
|
# eof
|