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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 commands on master or specified node of a running HBase EC2 cluster.
# if no args specified, show usage
if [ $# = 0 ]; then
echo "Command required!"
exit 1
fi
# get arguments
COMMAND="$1"
shift
# get group
CLUSTER="$1"
shift
if [ -z $CLUSTER ]; then
echo "Cluster name or instance id required!"
exit 1
fi
# Import variables
bin=`dirname "$0"`
bin=`cd "$bin"; pwd`
. "$bin"/hbase-ec2-env.sh
if [[ "$CLUSTER" = "i-*" ]]; then
HOST=`ec2-describe-instances $TOOL_OPTS $CLUSTER | grep running | awk '{print $4}'`
[ -z $HOST ] && echo "Instance still pending or no longer running: $CLUSTER" && exit 1
else
[ ! -f $MASTER_IP_PATH ] && echo "Wrong group name, or cluster not launched! $CLUSTER" && exit 1
HOST=`cat $MASTER_IP_PATH`
fi
if [ "$COMMAND" = "login" ] ; then
echo "Logging in to host $HOST."
ssh $SSH_OPTS "root@$HOST"
elif [ "$COMMAND" = "proxy" ] ; then
echo "Proxying to host $HOST via local port 6666"
echo "Gangia: http://$HOST/ganglia"
echo "JobTracker: http://$HOST:50030/"
echo "NameNode: http://$HOST:50070/"
ssh $SSH_OPTS -D 6666 -N "root@$HOST"
elif [ "$COMMAND" = "push" ] ; then
echo "Pushing $1 to host $HOST."
scp $SSH_OPTS -r $1 "root@$HOST:"
elif [ "$COMMAND" = "screen" ] ; then
echo "Logging in and attaching screen on host $HOST."
ssh $SSH_OPTS -t "root@$HOST" 'screen -D -R'
else
echo "Executing command on host $HOST."
ssh $SSH_OPTS -t "root@$HOST" "$COMMAND"
fi