spark/run

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#!/bin/bash
SCALA_VERSION=2.9.2
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# Figure out where the Scala framework is installed
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FWDIR="$(cd `dirname $0`; pwd)"
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# Export this as SPARK_HOME
export SPARK_HOME="$FWDIR"
# Load environment variables from conf/spark-env.sh, if it exists
if [ -e $FWDIR/conf/spark-env.sh ] ; then
. $FWDIR/conf/spark-env.sh
fi
# Check that SCALA_HOME has been specified
if [ -z "$SCALA_HOME" ]; then
echo "SCALA_HOME is not set" >&2
exit 1
fi
# If the user specifies a Mesos JAR, put it before our included one on the classpath
MESOS_CLASSPATH=""
if [ -z "$MESOS_JAR" ] ; then
MESOS_CLASSPATH="$MESOS_JAR"
fi
# Figure out how much memory to use per executor and set it as an environment
# variable so that our process sees it and can report it to Mesos
if [ -z "$SPARK_MEM" ] ; then
SPARK_MEM="512m"
fi
export SPARK_MEM
# Set JAVA_OPTS to be able to load native libraries and to set heap size
JAVA_OPTS="$SPARK_JAVA_OPTS"
JAVA_OPTS+=" -Djava.library.path=$SPARK_LIBRARY_PATH"
JAVA_OPTS+=" -Xms$SPARK_MEM -Xmx$SPARK_MEM"
# Load extra JAVA_OPTS from conf/java-opts, if it exists
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if [ -e $FWDIR/conf/java-opts ] ; then
JAVA_OPTS+=" `cat $FWDIR/conf/java-opts`"
fi
export JAVA_OPTS
CORE_DIR="$FWDIR/core"
REPL_DIR="$FWDIR/repl"
EXAMPLES_DIR="$FWDIR/examples"
BAGEL_DIR="$FWDIR/bagel"
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# Build up classpath
CLASSPATH="$SPARK_CLASSPATH"
CLASSPATH+=":$MESOS_CLASSPATH"
CLASSPATH+=":$FWDIR/conf"
CLASSPATH+=":$CORE_DIR/target/scala-$SCALA_VERSION/classes"
CLASSPATH+=":$CORE_DIR/target/scala-$SCALA_VERSION/test-classes"
CLASSPATH+=":$CORE_DIR/src/main/resources"
CLASSPATH+=":$REPL_DIR/target/scala-$SCALA_VERSION/classes"
CLASSPATH+=":$EXAMPLES_DIR/target/scala-$SCALA_VERSION/classes"
for jar in `find $CORE_DIR/lib -name '*jar'`; do
CLASSPATH+=":$jar"
done
for jar in `find $FWDIR/lib_managed/jars -name '*jar'`; do
CLASSPATH+=":$jar"
done
for jar in `find $FWDIR/lib_managed/bundles -name '*jar'`; do
CLASSPATH+=":$jar"
done
for jar in `find $REPL_DIR/lib -name '*jar'`; do
CLASSPATH+=":$jar"
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done
CLASSPATH+=":$BAGEL_DIR/target/scala-$SCALA_VERSION/classes"
export CLASSPATH # Needed for spark-shell
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# Figure out whether to run our class with java or with the scala launcher.
# In most cases, we'd prefer to execute our process with java because scala
# creates a shell script as the parent of its Java process, which makes it
# hard to kill the child with stuff like Process.destroy(). However, for
# the Spark shell, the wrapper is necessary to properly reset the terminal
# when we exit, so we allow it to set a variable to launch with scala.
if [ "$SPARK_LAUNCH_WITH_SCALA" == "1" ]; then
RUNNER="${SCALA_HOME}/bin/scala"
EXTRA_ARGS="" # Java options will be passed to scala as JAVA_OPTS
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else
CLASSPATH+=":$SCALA_HOME/lib/scala-library.jar"
CLASSPATH+=":$SCALA_HOME/lib/scala-compiler.jar"
CLASSPATH+=":$SCALA_HOME/lib/jline.jar"
if [ -n "$JAVA_HOME" ]; then
RUNNER="${JAVA_HOME}/bin/java"
else
RUNNER=java
fi
# The JVM doesn't read JAVA_OPTS by default so we need to pass it in
EXTRA_ARGS="$JAVA_OPTS"
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fi
exec "$RUNNER" -cp "$CLASSPATH" $EXTRA_ARGS "$@"