#!/bin/sh
#
# 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.
#

# Start MIX server instances on each machine specified
# in the conf/MIXSERV_LIST file

usage="Usage: mixserv_cluster.sh (start|stop|status)"

if [ "$HIVEMALL_HOME" = "" ]; then
  echo "env HIVEMALL_HOME not defined"
  exit 1
fi

cmd=$1
case $cmd in
  (start)
    ;;
  (stop)
    ;;
  (status)
    ;;
  (*)
    echo $usage
    exit 1
    ;;
esac

MIXSERV_HOSTS="$HIVEMALL_HOME/conf/MIXSERV_LIST"
MIXSERV_SSH_OPTS="-o StrictHostKeyChecking=no"

# Load host entries from the servers file
if [ -f "$MIXSERV_HOSTS" ]; then
  HOSTLIST=`cat $MIXSERV_HOSTS`
else
  HOSTLIST=localhost
fi

for slave in `echo "$HOSTLIST" | sed  "s/#.*$//;/^$/d"`; do
  ssh $MIXSERV_SSH_OPTS "$slave" "$HIVEMALL_HOME/bin/mixserv_daemon.sh" $cmd 2>&1 | sed "s/^/$slave: /" &
done

wait