diff options
Diffstat (limited to 'spark-class')
-rwxr-xr-x | spark-class | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/spark-class b/spark-class new file mode 100755 index 0000000000..71dfb9c4e6 --- /dev/null +++ b/spark-class @@ -0,0 +1,117 @@ +#!/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. +# + +SCALA_VERSION=2.9.3 + +# Figure out where the Scala framework is installed +FWDIR="$(cd `dirname $0`; pwd)" + +# Export this as SPARK_HOME +export SPARK_HOME="$FWDIR" + +# Load environment variables from conf/spark-env.sh, if it exists +if [ -e $FWDIR/conf/spark-env.sh ] ; then + . $FWDIR/conf/spark-env.sh +fi + +if [ -z "$1" ]; then + echo "Usage: run <spark-class> [<args>]" >&2 + exit 1 +fi + +# If this is a standalone cluster daemon, reset SPARK_JAVA_OPTS and SPARK_MEM to reasonable +# values for that; it doesn't need a lot +if [ "$1" = "spark.deploy.master.Master" -o "$1" = "spark.deploy.worker.Worker" ]; then + SPARK_MEM=${SPARK_DAEMON_MEMORY:-512m} + SPARK_DAEMON_JAVA_OPTS="$SPARK_DAEMON_JAVA_OPTS -Dspark.akka.logLifecycleEvents=true" + # Do not overwrite SPARK_JAVA_OPTS environment variable in this script + OUR_JAVA_OPTS="$SPARK_DAEMON_JAVA_OPTS" # Empty by default +else + OUR_JAVA_OPTS="$SPARK_JAVA_OPTS" +fi + + +# Add java opts for master, worker, executor. The opts maybe null +case "$1" in + 'spark.deploy.master.Master') + OUR_JAVA_OPTS="$OUR_JAVA_OPTS $SPARK_MASTER_OPTS" + ;; + 'spark.deploy.worker.Worker') + OUR_JAVA_OPTS="$OUR_JAVA_OPTS $SPARK_WORKER_OPTS" + ;; + 'spark.executor.StandaloneExecutorBackend') + OUR_JAVA_OPTS="$OUR_JAVA_OPTS $SPARK_EXECUTOR_OPTS" + ;; + 'spark.executor.MesosExecutorBackend') + OUR_JAVA_OPTS="$OUR_JAVA_OPTS $SPARK_EXECUTOR_OPTS" + ;; + 'spark.repl.Main') + OUR_JAVA_OPTS="$OUR_JAVA_OPTS $SPARK_REPL_OPTS" + ;; +esac + +# Find the java binary +if [ -n "${JAVA_HOME}" ]; then + RUNNER="${JAVA_HOME}/bin/java" +else + if [ `command -v java` ]; then + RUNNER="java" + else + echo "JAVA_HOME is not set" >&2 + exit 1 + fi +fi + +# Set SPARK_MEM if it isn't already set since we also use it for this process +SPARK_MEM=${SPARK_MEM:-512m} +export SPARK_MEM + +# Set JAVA_OPTS to be able to load native libraries and to set heap size +JAVA_OPTS="$OUR_JAVA_OPTS" +JAVA_OPTS="$JAVA_OPTS -Djava.library.path=$SPARK_LIBRARY_PATH" +JAVA_OPTS="$JAVA_OPTS -Xms$SPARK_MEM -Xmx$SPARK_MEM" +# Load extra JAVA_OPTS from conf/java-opts, if it exists +if [ -e $FWDIR/conf/java-opts ] ; then + JAVA_OPTS="$JAVA_OPTS `cat $FWDIR/conf/java-opts`" +fi +export JAVA_OPTS +# Attention: when changing the way the JAVA_OPTS are assembled, the change must be reflected in ExecutorRunner.scala! + +if [ ! -f "$FWDIR/RELEASE" ]; then + # Exit if the user hasn't compiled Spark + ls "$FWDIR"/assembly/target/scala-$SCALA_VERSION/spark-assembly*hadoop*.jar >& /dev/null + if [[ $? != 0 ]]; then + echo "Failed to find Spark assembly in $FWDIR/assembly/target" >&2 + echo "You need to build Spark with sbt/sbt assembly before running this program" >&2 + exit 1 + fi +fi + +# Compute classpath using external script +CLASSPATH=`$FWDIR/bin/compute-classpath.sh` +export CLASSPATH + +if [ "$SPARK_PRINT_LAUNCH_COMMAND" == "1" ]; then + echo -n "Spark Command: " + echo "$RUNNER" -cp "$CLASSPATH" $JAVA_OPTS "$@" + echo "========================================" + echo +fi + +exec "$RUNNER" -cp "$CLASSPATH" $JAVA_OPTS "$@" |