hbase/contrib/ec2/bin/list-hbase-slaves

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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.
# Launch an EC2 HBase slaves.
if [ -z $1 ]; then
echo "Cluster name required!"
exit 1
fi
CLUSTER=$1
# Import variables
bin=`dirname "$0"`
bin=`cd "$bin"; pwd`
. "$bin"/hbase-ec2-env.sh
if [ ! -f $INSTANCES_PATH ]; then
echo "Must start Cluster first!"
exit 1
fi
instances=`cat $INSTANCES_PATH`
ec2-describe-instances $TOOL_OPTS $instances | grep INSTANCE | grep running | awk '{print $4}'