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Diffstat (limited to 'sbin/slaves.sh')
-rwxr-xr-x | sbin/slaves.sh | 91 |
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 |