0dc868e787
Author: Kousuke Saruta <sarutak@oss.nttdata.co.jp> Closes #2444 from sarutak/slaves-scripts-modification and squashes the following commits: eff7394 [Kousuke Saruta] Improve the description about Cluster Launch Script in docs/spark-standalone.md 7858225 [Kousuke Saruta] Modified sbin/slaves to use the environment variable "SPARK_SSH_FOREGROUND" as a flag 53d7121 [Kousuke Saruta] Merge branch 'master' of git://git.apache.org/spark into slaves-scripts-modification e570431 [Kousuke Saruta] Added a description for SPARK_SSH_FOREGROUND variable 7120a0c [Kousuke Saruta] Added a description about default host for sbin/slaves 1bba8a9 [Kousuke Saruta] Added SPARK_SSH_FOREGROUND flag to sbin/slaves 88e2f17 [Kousuke Saruta] Merge branch 'master' of git://git.apache.org/spark into slaves-scripts-modification 297e75d [Kousuke Saruta] Modified sbin/slaves not to export HOSTLIST
103 lines
2.7 KiB
Bash
Executable file
103 lines
2.7 KiB
Bash
Executable file
#!/usr/bin/env bash
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#
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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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#
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# Run a shell command on all slave hosts.
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#
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# Environment Variables
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#
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# SPARK_SLAVES File naming remote hosts.
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# Default is ${SPARK_CONF_DIR}/slaves.
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# SPARK_CONF_DIR Alternate conf dir. Default is ${SPARK_HOME}/conf.
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# SPARK_SLAVE_SLEEP Seconds to sleep between spawning remote commands.
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# SPARK_SSH_OPTS Options passed to ssh when running remote commands.
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##
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usage="Usage: slaves.sh [--config <conf-dir>] command..."
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# if no args specified, show usage
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if [ $# -le 0 ]; then
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echo $usage
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exit 1
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fi
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sbin="`dirname "$0"`"
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sbin="`cd "$sbin"; pwd`"
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. "$sbin/spark-config.sh"
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# If the slaves file is specified in the command line,
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# then it takes precedence over the definition in
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# spark-env.sh. Save it here.
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if [ -f "$SPARK_SLAVES" ]; then
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HOSTLIST=`cat "$SPARK_SLAVES"`
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fi
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# Check if --config is passed as an argument. It is an optional parameter.
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# Exit if the argument is not a directory.
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if [ "$1" == "--config" ]
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then
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shift
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conf_dir="$1"
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if [ ! -d "$conf_dir" ]
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then
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echo "ERROR : $conf_dir is not a directory"
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echo $usage
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exit 1
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else
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export SPARK_CONF_DIR="$conf_dir"
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fi
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shift
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fi
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. "$SPARK_PREFIX/bin/load-spark-env.sh"
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if [ "$HOSTLIST" = "" ]; then
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if [ "$SPARK_SLAVES" = "" ]; then
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if [ -f "${SPARK_CONF_DIR}/slaves" ]; then
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HOSTLIST=`cat "${SPARK_CONF_DIR}/slaves"`
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else
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HOSTLIST=localhost
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fi
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else
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HOSTLIST=`cat "${SPARK_SLAVES}"`
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fi
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fi
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# By default disable strict host key checking
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if [ "$SPARK_SSH_OPTS" = "" ]; then
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SPARK_SSH_OPTS="-o StrictHostKeyChecking=no"
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fi
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for slave in `echo "$HOSTLIST"|sed "s/#.*$//;/^$/d"`; do
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if [ -n "${SPARK_SSH_FOREGROUND}" ]; then
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ssh $SPARK_SSH_OPTS "$slave" $"${@// /\\ }" \
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2>&1 | sed "s/^/$slave: /"
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else
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ssh $SPARK_SSH_OPTS "$slave" $"${@// /\\ }" \
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2>&1 | sed "s/^/$slave: /" &
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fi
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if [ "$SPARK_SLAVE_SLEEP" != "" ]; then
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sleep $SPARK_SLAVE_SLEEP
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fi
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done
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wait
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