我正在学习杰弗瑞·布林的教程。当我想用whirr启动ec2集群时遇到了一些麻烦。我使用cloudera演示vm cdh3u4。
我下载了whirr的0.8.1版本。
以下是我运行的所有命令：

$ wget http://mirror.switch.ch/mirror/apache/dist/whirr/whirr-0.8.1/whirr-0.8.1.tar.gz
$ tar zxf whirr-0.8.0.tar.gz
$ export PATH="~/whirr-0.8.0/bin:$PATH"

$ export AWS_ACCESS_KEY_ID=MY ACCESS KEY
$ export AWS_SECRET_ACCESS_KEY=MY SECRET ACCESS KEY

$ ssh-keygen -t rsa -P hadoop-ec2

然后我被问到密钥应该放在哪个文件中，我键入：hadoop-ec2

$ whirr launch-cluster --config hadoop-ec2.properties

……问题是：没有启动示例！我收到了以下信息：

Exception in thread "main" org.apache.commons.configuration.ConfigurationException: Cannot locate configuration source hadoop-ec2.properties
        at org.apache.commons.configuration.AbstractFileConfiguration.load(AbstractFileConfiguration.java:249)
        at org.apache.commons.configuration.AbstractFileConfiguration.load(AbstractFileConfiguration.java:229)
        at org.apache.commons.configuration.AbstractFileConfiguration.<init>(AbstractFileConfiguration.java:149)
        at org.apache.commons.configuration.PropertiesConfiguration.<init>(PropertiesConfiguration.java:252)
        at org.apache.whirr.command.AbstractClusterCommand.getClusterSpec(AbstractClusterCommand.java:122)
        at org.apache.whirr.cli.command.LaunchClusterCommand.run(LaunchClusterCommand.java:57)
        at org.apache.whirr.cli.Main.run(Main.java:69)
        at org.apache.whirr.cli.Main.main(Main.java:102)

接下来，我将属性文件直接链接到jeffrey breen在教程中发布的文件，然后得到以下内容：

[cloudera@localhost ~]$ whirr launch-cluster --config /home/cloudera/TutorialBreen/config/whirr-ec2/hadoop-ec2.properties
Running on provider aws-ec2 using identity ${env:AKIAIXPYW6EBNWSZWMTQ}
Bootstrapping cluster
Configuring template for bootstrap-hadoop-datanode_hadoop-tasktracker
Unable to start the cluster. Terminating all nodes.
org.jclouds.rest.AuthorizationException: POST https://ec2.us-east-1.amazonaws.com/ HTTP/1.1 -> HTTP/1.1 401 Unauthorized
        at org.jclouds.aws.handlers.ParseAWSErrorFromXmlContent.refineException(ParseAWSErrorFromXmlContent.java:123)
        at org.jclouds.aws.handlers.ParseAWSErrorFromXmlContent.handleError(ParseAWSErrorFromXmlContent.java:92)
        at org.jclouds.http.handlers.DelegatingErrorHandler.handleError(DelegatingErrorHandler.java:69)
        at org.jclouds.http.internal.BaseHttpCommandExecutorService$HttpResponseCallable.shouldContinue(BaseHttpCommandExecutorService.java:197)
        at org.jclouds.http.internal.BaseHttpCommandExecutorService$HttpResponseCallable.call(BaseHttpCommandExecutorService.java:167) . . .

这是朝着正确的方向迈出的一步吗？如果是的话，我该怎么做才能奏效？
我是一个非常初学者，所以我真的非常感谢你的帮助，如果可能的话，als“清楚”尽可能，因为我-正如我所说的-一个初学者。
下一步将运行以下命令：

$ whirr run-script --script install-r+packages.sh --config hadoop-ec2.properties

我真的希望在这里找到一些帮助，以便我可以继续教程。
whirr配置文件：

whirr.cluster-name=hadoop-ec2

# Change the number of machines in the cluster here

whirr.instance-templates=1 hadoop-namenode+hadoop-jobtracker,5 hadoop-datanode+hadoop-tasktracker

# whirr.instance-templates=1 hadoop-namenode+hadoop-jobtracker,1 hadoop-datanode+hadoop-tasktracker

# Uncomment out these lines to run CDH

# You need cdh3 because of the streaming combiner backport

whirr.hadoop.install-function=install_cdh_hadoop
whirr.hadoop.configure-function=configure_cdh_hadoop

# make sure java is set up correctly, requires Whirr >= 0.7.1

whirr.java.install-function=install_oab_java 

# For EC2 set AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY environment variables.

whirr.provider=aws-ec2
whirr.identity=${env:DFD...(mycode)..DFDSDF}
whirr.credential=${env:df342.(mycode)..3434324}

# The size of the instance to use. See http://aws.amazon.com/ec2/instance-types/

whirr.hardware-id=m1.large

# whirr.hardware-id=c1.xlarge

# select recent, 64-bit CentOS 5.6 AMI from RightScale

whirr.image-id=us-east-1/ami-49e32320

# here's what Cloudera recommends:

# whirr.image-id=us-east-1/ami-ccb35ea5

# If you choose a different location, make sure whirr.image-id is updated too

whirr.location-id=us-east-1

# You can also specify the spot instance price

# http://aws.amazon.com/ec2/spot-instances/

# whirr.aws-ec2-spot-price=0.109

# By default use the user system SSH keys. Override them here.

# whirr.private-key-file=${sys:user.home}/.ssh/id_rsa

# whirr.public-key-file=${sys:user.home}/.ssh/id_rsa.pub

# Expert: override Hadoop properties by setting properties with the prefix

# hadoop-common, hadoop-hdfs, hadoop-mapreduce to set Common, HDFS, MapReduce

# site properties, respectively. The prefix is removed by Whirr, so that for

# example, setting

# hadoop-common.fs.trash.interval=1440

# will result in fs.trash.interval being set to 1440 in core-site.xml.

# Expert: specify the version of Hadoop to install.

# whirr.hadoop.version=0.20.2

# whirr.hadoop.tarball.url=http://archive.apache.org/dist/hadoop/core/hadoop-${whirr.hadoop.version}/hadoop-${whirr.hadoop.version}.tar.gz