initializing nm.dat

[Chad Huneycutt]

I am trying to get started with tashi following the "setting tashi up on 
a single test machine" instructions, but the nodemanager is failing to 
start complaining that it is unable to load VM info from 
/var/tmp/nm.dat.  How does that file get created and initialized?

[root@jedi000 tashi]# DEBUG=1 python26 bin/nodemanager.py
2011-03-11 11:48:22,243 [__main__:INFO] Using configuration file(s) 
['./etc/TashiDefaults.cfg', './etc/NodeManager.cfg']
2011-03-11 11:48:22,253 
[/opt/tashi/src/tashi/nodemanager/vmcontrol/qemu.pyc:INFO] No vm information 
found in /var/tmp/VmControlQemu/
2011-03-11 11:48:22,257 
[/opt/tashi/src/tashi/nodemanager/nodemanagerservice.pyc:ERROR] Failed to load 
VM info from /var/tmp/nm.dat
Traceback (most recent call last):
  File "/opt/tashi/src/tashi/nodemanager/nodemanagerservice.py", line 77, in 
loadVmInfo
    self.instances = cPickle.loads(data)
EOFError
Traceback (most recent call last):
  File "bin/nodemanager.py", line 73, in <module>
    main()
  File "bin/nodemanager.py", line 48, in main
    service = instantiateImplementation(config.get("NodeManager", "service"), 
config, vmm)
  File "/opt/tashi/src/tashi/util.py", line 191, in instantiateImplementation
    exec cmd in locals()
  File "<string>", line 2, in <module>
  File "/opt/tashi/src/tashi/nodemanager/nodemanagerservice.py", line 67, in 
__init__
    self.registerHost()
  File "/opt/tashi/src/tashi/nodemanager/nodemanagerservice.py", line 305, in 
registerHost
    cm.registerHost(hostname, memory, cores, version)
TypeError: 'NoneType' object is not callable