I am trying to test the new ssh modeling feature of zenoss following the instructions outlined here:

http://www.zenoss.com/community/docs/zenoss-guide/2.4.0/ch03s05.html

I have double checked that the zenoss user can ssh to the target machine using a key located at ~/.ssh/id_dsa. It can also ssh to the target machine using the user and password I have filled out in ZcommandUsername and ZcommandPassword.

Nothing I have tried so far works. The target machine doesn't even show a connection attempt from zenoss.

Output from zenmodeler run -v 10 -d TARGET_MACHINE shows the following error:

DEBUG:zen.SshClient:Creating new SSH connection...
DEBUG:zen.SshClient:Sorted list of authentication methods: ['publickey', 'keyboard-interactive']
DEBUG:zen.SshClient:Attempting method publickey
DEBUG:zen.SshClient:Expanded SSH public key path from zKeyPath ~/.ssh/id_dsa to /home/zenoss/.ssh/id_dsa
/opt/zenoss/Products/DataCollector/SshClient.py:300: DeprecationWarning: getPublicKeyString is deprecated since Twisted Conch 0.9. Use Key.fromString().
return keys.getPublicKeyString( path + '.pub' )
DEBUG:zen.SshClient:Expanded SSH private key path from zKeyPath ~/.ssh/id_dsa to /home/zenoss/.ssh/id_dsa
/opt/zenoss/Products/DataCollector/SshClient.py:393: DeprecationWarning: getPrivateKeyObject is deprecated since Twisted Conch 0.9. Use Key.fromString().
passphrase=self.factory.password))
Traceback (most recent call last):
File "/opt/zenoss/lib/python/twisted/internet/selectreactor.py", line 146, in _doReadOrWrite
why = getattr(selectable, method)()
File "/opt/zenoss/lib/python/twisted/internet/tcp.py", line 362, in doRead
return self.protocol.dataReceived(data)
File "/opt/zenoss/lib/python/twisted/conch/ssh/transport.py", line 314, in dataReceived
self.dispatchMessage(messageNum, packet[1:])
File "/opt/zenoss/lib/python/twisted/conch/ssh/transport.py", line 336, in dispatchMessage
messageNum, payload)
--- <exception caught here> ---
File "/opt/zenoss/lib/python/twisted/python/log.py", line 51, in callWithLogger
return callWithContext({"system": lp}, func, *args, **kw)
File "/opt/zenoss/lib/python/twisted/python/log.py", line 36, in callWithContext
return context.call({ILogContext: newCtx}, func, *args, **kw)
File "/opt/zenoss/lib/python/twisted/python/context.py", line 59, in callWithContext
return self.currentContext().callWithContext(ctx, func, *args, **kw)
File "/opt/zenoss/lib/python/twisted/python/context.py", line 37, in callWithContext
return func(*args,**kw)
File "/opt/zenoss/lib/python/twisted/conch/ssh/service.py", line 44, in packetReceived
return f(packet)
File "/opt/zenoss/lib/python/twisted/conch/ssh/userauth.py", line 274, in ssh_USERAUTH_PK_OK
d = self.signData(publicKey, b)
File "/opt/zenoss/lib/python/twisted/conch/ssh/userauth.py", line 370, in signData
key = self.getPrivateKey()
File "/opt/zenoss/Products/DataCollector/SshClient.py", line 393, in getPrivateKey
passphrase=self.factory.password))
File "/opt/zenoss/lib/python/twisted/conch/ssh/keys.py", line 700, in getPrivateKeyObject
return Key.fromFile(filename, passphrase=passphrase).keyObject
File "/opt/zenoss/lib/python/twisted/conch/ssh/keys.py", line 60, in fromFile
return Class.fromString(file(filename, 'rb').read(), type, passphrase)
File "/opt/zenoss/lib/python/twisted/conch/ssh/keys.py", line 88, in fromString
return method(data, passphrase)
File "/opt/zenoss/lib/python/twisted/conch/ssh/keys.py", line 191, in _fromString_PRIVATE_OPENSSH
p, q, g, y, x = decodedKey[1: 6]
exceptions.ValueError: need more than 1 value to unpack
DEBUG:zen.ZenModeler:Running 1 clients
DEBUG:zen.ZenModeler:Running 1 clients

From this point on it just prints out the "Running 1 clients" line until the model process times out.

I have tried this on a fresh install of 2.4.0 on both Centos 5.2 and Ubuntu. The problem persists across both distros.

Any ideas?