2012-12-01 21:18:15 -05:00
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#!/usr/bin/env bash
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2013-07-16 20:21:33 -04:00
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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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2013-06-24 18:14:48 -04:00
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#
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2013-07-16 20:21:33 -04:00
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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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2015-03-28 08:32:35 -04:00
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# Starts a slave on the machine this script is executed on.
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2015-04-13 21:21:16 -04:00
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#
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# Environment Variables
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#
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# SPARK_WORKER_INSTANCES The number of worker instances to run on this
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# slave. Default is 1.
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# SPARK_WORKER_PORT The base port number for the first worker. If set,
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# subsequent workers will increment this number. If
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# unset, Spark will find a valid port number, but
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# with no guarantee of a predictable pattern.
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# SPARK_WORKER_WEBUI_PORT The base port for the web interface of the first
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# worker. Subsequent workers will increment this
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# number. Default is 8081.
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2015-03-28 08:32:35 -04:00
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2015-04-13 21:21:16 -04:00
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usage="Usage: start-slave.sh <spark-master-URL> where <spark-master-URL> is like spark://localhost:7077"
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2015-03-28 08:32:35 -04:00
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2015-04-13 21:21:16 -04:00
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if [ $# -lt 1 ]; then
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2015-03-28 08:32:35 -04:00
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echo $usage
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2015-04-13 21:21:16 -04:00
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echo Called as start-slave.sh $*
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2015-03-28 08:32:35 -04:00
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exit 1
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fi
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2012-12-01 21:18:15 -05:00
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2014-09-08 13:24:15 -04:00
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sbin="`dirname "$0"`"
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sbin="`cd "$sbin"; pwd`"
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2012-12-01 21:18:15 -05:00
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2015-04-13 21:21:16 -04:00
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. "$sbin/spark-config.sh"
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. "$SPARK_PREFIX/bin/load-spark-env.sh"
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# First argument should be the master; we need to store it aside because we may
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# need to insert arguments between it and the other arguments
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MASTER=$1
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shift
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# Determine desired worker port
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if [ "$SPARK_WORKER_WEBUI_PORT" = "" ]; then
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SPARK_WORKER_WEBUI_PORT=8081
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fi
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# Start up the appropriate number of workers on this machine.
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# quick local function to start a worker
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function start_instance {
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WORKER_NUM=$1
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shift
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if [ "$SPARK_WORKER_PORT" = "" ]; then
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PORT_FLAG=
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PORT_NUM=
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else
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PORT_FLAG="--port"
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PORT_NUM=$(( $SPARK_WORKER_PORT + $WORKER_NUM - 1 ))
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fi
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WEBUI_PORT=$(( $SPARK_WORKER_WEBUI_PORT + $WORKER_NUM - 1 ))
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"$sbin"/spark-daemon.sh start org.apache.spark.deploy.worker.Worker $WORKER_NUM \
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--webui-port "$WEBUI_PORT" $PORT_FLAG $PORT_NUM $MASTER "$@"
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}
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if [ "$SPARK_WORKER_INSTANCES" = "" ]; then
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start_instance 1 "$@"
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else
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for ((i=0; i<$SPARK_WORKER_INSTANCES; i++)); do
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start_instance $(( 1 + $i )) "$@"
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done
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fi
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