apache-whirr

I am new to Whirr and I'm trying to setup a Hadoop cluster on EC2 with Whirr,I have followed the tutorial on Cloudera https://ccp.cloudera.com/display/CDHDOC/Whirr+Installation Before install Whirr, I install Hadoop (0.20.2-cdh3u3), then install Whirr (0.5.0-cdh3u3). Here's my cluster config file whirr.cluster-name=large-cluster whirr.instance-templates=1 hadoop-jobtracker+hadoop-namenode,1 hadoop-datanode+hadoop-tasktracker whirr.provider=aws-ec2 whirr.identity=XXXXXXXXXXXXXXX whirr.credential=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx whirr.private-key-file=${sys:user.home}/.ssh/id_rsa whirr