Merge branch 'scripts-reorg' of github.com:shane-huang/incubator-spark into spark-915-segregate-scripts

Conflicts:
	bin/spark-shell
	core/pom.xml
	core/src/main/scala/org/apache/spark/SparkContext.scala
	core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/CoarseMesosSchedulerBackend.scala
	core/src/main/scala/org/apache/spark/ui/UIWorkloadGenerator.scala
	core/src/test/scala/org/apache/spark/DriverSuite.scala
	python/run-tests
	sbin/compute-classpath.sh
	sbin/spark-class
	sbin/stop-slaves.sh

1 files changed, 91 insertions, 0 deletions

diff --git a/sbin/slaves.sh b/sbin/slaves.sh
new file mode 100755
index 0000000000..a5bc2183d8
--- /dev/null
+++ b/sbin/slaves.sh
@@ -0,0 +1,91 @@
+#!/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.
+#
+
+# Run a shell command on all slave hosts.
+#
+# Environment Variables
+#
+#   SPARK_SLAVES    File naming remote hosts.
+#     Default is ${SPARK_CONF_DIR}/slaves.
+#   SPARK_CONF_DIR  Alternate conf dir. Default is ${SPARK_HOME}/conf.
+#   SPARK_SLAVE_SLEEP Seconds to sleep between spawning remote commands.
+#   SPARK_SSH_OPTS Options passed to ssh when running remote commands.
+##
+
+usage="Usage: slaves.sh [--config <conf-dir>] command..."
+
+# if no args specified, show usage
+if [ $# -le 0 ]; then
+  echo $usage
+  exit 1
+fi
+
+sbin=`dirname "$0"`
+sbin=`cd "$sbin"; pwd`
+
+. "$sbin/spark-config.sh"
+
+# If the slaves file is specified in the command line,
+# then it takes precedence over the definition in
+# spark-env.sh. Save it here.
+HOSTLIST=$SPARK_SLAVES
+
+# Check if --config is passed as an argument. It is an optional parameter.
+# Exit if the argument is not a directory.
+if [ "$1" == "--config" ]
+then
+  shift
+  conf_dir=$1
+  if [ ! -d "$conf_dir" ]
+  then
+    echo "ERROR : $conf_dir is not a directory"
+    echo $usage
+    exit 1
+  else
+    export SPARK_CONF_DIR=$conf_dir
+  fi
+  shift
+fi
+
+if [ -f "${SPARK_CONF_DIR}/spark-env.sh" ]; then
+  . "${SPARK_CONF_DIR}/spark-env.sh"
+fi
+
+if [ "$HOSTLIST" = "" ]; then
+  if [ "$SPARK_SLAVES" = "" ]; then
+    export HOSTLIST="${SPARK_CONF_DIR}/slaves"
+  else
+    export HOSTLIST="${SPARK_SLAVES}"
+  fi
+fi
+
+# By default disable strict host key checking
+if [ "$SPARK_SSH_OPTS" = "" ]; then
+  SPARK_SSH_OPTS="-o StrictHostKeyChecking=no"
+fi
+
+for slave in `cat "$HOSTLIST"|sed  "s/#.*$//;/^$/d"`; do
+ ssh $SPARK_SSH_OPTS $slave $"${@// /\\ }" \
+   2>&1 | sed "s/^/$slave: /" &
+ if [ "$SPARK_SLAVE_SLEEP" != "" ]; then
+   sleep $SPARK_SLAVE_SLEEP
+ fi
+done
+
+wait