我正在尝试在AWS上进行一些集群计算的实验。我对此完全陌生,也有一些问题。我正在努力遵循这里的教程:http://star.mit.edu/cluster/docs/latest/plugins/ipython.html#using-ipython集群。我使用starcluster启动一个集群实例,其中包含以下内容:
starcluster start mycluster
一切都如预期的那样出现,这表明ipython插件已经加载。然后,我尝试执行教程中显示的以下命令:
starcluster sshmaster mycluster -u myuser
然而,连接失败,告诉我
Permission denied (publickey).
我可以使用登录
starcluster sshmaster mycluster
所以我试图继续教程登录到master,但当我试图创建客户端时,我收到了错误:
AssertionError: Not a valid connection file or url:
u'/root/.ipython/profile_default/security/ipcontroller-client.json'
我唯一看到的似乎不同寻常的是,当集群启动时,出现了这样的情况:
>>> Running plugin ipcluster
>>> Writing IPython cluster config files
>>> Starting IPython cluster with 7 engines
>>> Waiting for JSON connector file...
>>> Creating IPCluster cache directory: /Users/username/.starcluster/ipcluster
>>> Saving JSON connector file to '/Users/username/.starcluster/ipcluster/mycluster-us-east-1.json'
!!! ERROR - Error occurred while running plugin 'ipcluster':
Traceback (most recent call last):
File "/Library/Python/2.7/site-packages/StarCluster-0.93.3-py2.7.egg/starcluster/cluster.py", line 1506, in run_plugin
func(*args)
File "/Library/Python/2.7/site-packages/StarCluster-0.93.3-py2.7.egg/starcluster/plugins/ipcluster.py", line 276, in run
plug.run(nodes, master, user, user_shell, volumes)
File "<string>", line 2, in run
File "/Library/Python/2.7/site-packages/StarCluster-0.93.3-py2.7.egg/starcluster/utils.py", line 87, in wrap_f
res = func(*arg, **kargs)
File "/Library/Python/2.7/site-packages/StarCluster-0.93.3-py2.7.egg/starcluster/plugins/ipcluster.py", line 228, in run
cfile = self._start_cluster(master, n, profile_dir)
File "/Library/Python/2.7/site-packages/StarCluster-0.93.3-py2.7.egg/starcluster/plugins/ipcluster.py", line 173, in _start_cluster
master.ssh.get(json, local_json)
File "/Library/Python/2.7/site-packages/StarCluster-0.93.3-py2.7.egg/starcluster/sshutils/__init__.py", line 431, in get
self.scp.get(remotepaths, localpath, recursive=recursive)
File "/Library/Python/2.7/site-packages/StarCluster-0.93.3-py2.7.egg/starcluster/sshutils/scp.py", line 141, in get
self._recv_all()
File "/Library/Python/2.7/site-packages/StarCluster-0.93.3-py2.7.egg/starcluster/sshutils/scp.py", line 242, in _recv_all
msg = self.channel.recv(1024)
File "build/bdist.macosx-10.8-intel/egg/ssh/channel.py", line 611, in recv
raise socket.timeout()
timeout
有什么想法吗?
本教程假设~/.starcluster/config
中有CLUSTER_USER = myuser
,即使默认情况下CLUSTER_USER = sgeadmin