| #!/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 Hadoop 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"/hadoop-ec2-env.sh |
| |
| if [[ $CLUSTER == i-* ]]; then |
| HOST=`ec2-describe-instances $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 |