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-rwxr-xr-xsbin/slaves.sh74
1 files changed, 74 insertions, 0 deletions
diff --git a/sbin/slaves.sh b/sbin/slaves.sh
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+#!/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 confdir] 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
+
+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