| #!/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. |
| # |
| |
| # Starts a worker on the machine this script is executed on. |
| # |
| # Environment Variables |
| # |
| # SPARK_WORKER_INSTANCES The number of worker instances to run on this |
| # worker. Default is 1. Note it has been deprecate since Spark 3.0. |
| # SPARK_WORKER_PORT The base port number for the first worker. If set, |
| # subsequent workers will increment this number. If |
| # unset, Spark will find a valid port number, but |
| # with no guarantee of a predictable pattern. |
| # SPARK_WORKER_WEBUI_PORT The base port for the web interface of the first |
| # worker. Subsequent workers will increment this |
| # number. Default is 8081. |
| |
| if [ -z "${SPARK_HOME}" ]; then |
| export SPARK_HOME="$(cd "`dirname "$0"`"/..; pwd)" |
| fi |
| |
| # NOTE: This exact class name is matched downstream by SparkSubmit. |
| # Any changes need to be reflected there. |
| CLASS="org.apache.spark.deploy.worker.Worker" |
| |
| if [[ $# -lt 1 ]] || [[ "$@" = *--help ]] || [[ "$@" = *-h ]]; then |
| echo "Usage: ./sbin/start-worker.sh <master> [options]" |
| pattern="Usage:" |
| pattern+="\|Using Spark's default log4j profile:" |
| pattern+="\|Started daemon with process name" |
| pattern+="\|Registered signal handler for" |
| |
| "${SPARK_HOME}"/bin/spark-class $CLASS --help 2>&1 | grep -v "$pattern" 1>&2 |
| exit 1 |
| fi |
| |
| . "${SPARK_HOME}/sbin/spark-config.sh" |
| |
| . "${SPARK_HOME}/bin/load-spark-env.sh" |
| |
| # First argument should be the master; we need to store it aside because we may |
| # need to insert arguments between it and the other arguments |
| MASTER=$1 |
| shift |
| |
| # Determine desired worker port |
| if [ "$SPARK_WORKER_WEBUI_PORT" = "" ]; then |
| SPARK_WORKER_WEBUI_PORT=8081 |
| fi |
| |
| # Start up the appropriate number of workers on this machine. |
| # quick local function to start a worker |
| function start_instance { |
| WORKER_NUM=$1 |
| shift |
| |
| if [ "$SPARK_WORKER_PORT" = "" ]; then |
| PORT_FLAG= |
| PORT_NUM= |
| else |
| PORT_FLAG="--port" |
| PORT_NUM=$(( $SPARK_WORKER_PORT + $WORKER_NUM - 1 )) |
| fi |
| WEBUI_PORT=$(( $SPARK_WORKER_WEBUI_PORT + $WORKER_NUM - 1 )) |
| |
| "${SPARK_HOME}/sbin"/spark-daemon.sh start $CLASS $WORKER_NUM \ |
| --webui-port "$WEBUI_PORT" $PORT_FLAG $PORT_NUM $MASTER "$@" |
| } |
| |
| if [ "$SPARK_WORKER_INSTANCES" = "" ]; then |
| start_instance 1 "$@" |
| else |
| for ((i=0; i<$SPARK_WORKER_INSTANCES; i++)); do |
| start_instance $(( 1 + $i )) "$@" |
| done |
| fi |