| #!/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. |
| |
| # Terminate a cluster. |
| |
| if [ -z $1 ]; then |
| echo "Cluster name required!" |
| exit -1 |
| fi |
| |
| CLUSTER=$1 |
| |
| # Import variables |
| bin=`dirname "$0"` |
| bin=`cd "$bin"; pwd` |
| . "$bin"/hadoop-ec2-env.sh |
| |
| # Finding Hadoop image |
| HADOOP_INSTANCES=`ec2-describe-instances | awk '"RESERVATION" == $1 && ("'$CLUSTER'" == $4 || "'$CLUSTER_MASTER'" == $4), "RESERVATION" == $1 && ("'$CLUSTER'" != $4 && "'$CLUSTER_MASTER'" != $4)'` |
| HADOOP_INSTANCES=`echo "$HADOOP_INSTANCES" | grep INSTANCE | grep running` |
| |
| [ -z "$HADOOP_INSTANCES" ] && echo "No running instances in cluster $CLUSTER." && exit 0 |
| |
| echo "Running Hadoop instances:" |
| echo "$HADOOP_INSTANCES" |
| read -p "Terminate all instances? [yes or no]: " answer |
| |
| if [ "$answer" != "yes" ]; then |
| exit 1 |
| fi |
| |
| ec2-terminate-instances `echo "$HADOOP_INSTANCES" | awk '{print $2}'` |