使用starcluster的亚马逊EC2上的R和snow

我正在尝试在AWS EC2集群上运行Parralel in R中的分析。我正在使用 starcluster用于设置和管理EC2群集，我正在尝试使用

snow

和

foreach

在R中。首先，集群中有2个节点，1个主节点和1个节点 工人

starcluster start mycluster 
starcluster listinstances

-----------------------------------------
mycluster (security group: @sc-mycluster)
-----------------------------------------
....
Cluster nodes:
     master running i-xxxxxxxxx masterIP.compute-1.amazonaws.com
    node001 running i-xxxxxxxxx node001IP.compute-1.amazonaws.com
Total nodes: 2

starcluster sshmaster mycluster

然后我启动R并加载

snow

包并尝试创建集群 反对

但是，这给了我以下错误消息：

The authenticity of host 'masterIP.compute-1.amazonaws.com (xx.xxx.xx.xx)' can't be established.
ECDSA key fingerprint is xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'masterIP.compute-1.amazonaws.com,xx.xxx.xx.xx' (ECDSA) to the list of known hosts.
Permission denied (publickey).

因此，我尝试将我的ssh密钥（

keyname.rsa

具体地说）复制到.ssh文件中 在EC2上，然后重试。这仍然不起作用；我收到了同样的信

权限被拒绝（公钥）。

错误。我认为是星团 处理ssh的设置和节点之间的通信，所以我有点

---

我不明白为什么我不能设置这个。我还尝试添加node001，因此

cl=makeCluster（c（“node001IP.compute-1.amazonaws.com”），type=“SOCK”）

，但出现了相同的错误

经过大量的修补，结果证明，所需要的只是对R版本2.15的更新。命令cl=makeCluster（c（“masterIP.compute-1.amazonaws.com”，“node001IP.compute-1.amazonaws.com”），type=“SOCK”）在那之后工作得很好

The authenticity of host 'masterIP.compute-1.amazonaws.com (xx.xxx.xx.xx)' can't be established.
ECDSA key fingerprint is xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'masterIP.compute-1.amazonaws.com,xx.xxx.xx.xx' (ECDSA) to the list of known hosts.
Permission denied (publickey).