R和amazon EC2上的雪使用starcluster

我試圖在RAC上運行AWS EC2羣集中的並行分析。我正在使用星羣來設置和管理EC2羣集，並試圖在R中使用snow和 foreach。首先，我在羣集中有2個節點，1個主節點和1個 worker。R和amazon EC2上的雪使用starcluster

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

我然後啓動R和加載snow包，並嘗試創建集羣對象。

R 
library("snow") 

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

然而，這使我有以下錯誤信息：

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).

所以，我想我的複製SSH密鑰（keyname.rsa要具體）到你的.ssh文件在EC2上，並再次嘗試。這仍然沒有奏效;我收到了相同的 Permission denied (publickey).錯誤。這是我認爲starcluster 處理ssh和節點之間通信的設置，所以我有點爲困惑，爲什麼我不能設置它。我也嘗試添加node001，所以cl = makeCluster(c("node001IP.compute-1.amazonaws.com"), type = "SOCK")，但是會發生相同的錯誤。

來源

2013-01-31 user1074057

事實證明，經過大量修補之後，所有需要的是對R 2.15版的更新。之後，命令cl = makeCluster(c("masterIP.compute-1.amazonaws.com", "node001IP.compute-1.amazonaws.com"), type = "SOCK")完美運作。

來源

2013-02-04 06:45:39 user1074057

R和amazon EC2上的雪使用starcluster

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