euca-run-instance instance in pending state
Have openstack cactus clouds based on Redhat6.x, Scientific Linux 6.1 both running fine for few months, both single zone, recently applied OS upgrade and security patches, both experienced images upload and run instance problems. image upload issues were resolved by downgrade python-boto from 2.0 to 1.9, but run instance by using euca-run-instance still having problems, the instance will stay in the "pending" mode, the only error message was from nova-scheduler.log:
2012-01-30 20:01:36,526 nova.scheduler.
2012-01-30 20:01:36,530 nova.rpc: ERROR [3a0dc601-
(nova.rpc): TRACE: Traceback (most recent call last):
(nova.rpc): TRACE: File "/usr/lib/
(nova.rpc): TRACE: rval = node_func(
(nova.rpc): TRACE: File "/usr/lib/
(nova.rpc): TRACE: host = real_meth(*args, **kwargs)
(nova.rpc): TRACE: File "/usr/lib/
(nova.rpc): TRACE: raise driver.
(nova.rpc): TRACE: NoValidHost: Scheduler was unable to locate a host for this request. Is the appropriate service running?
(nova.rpc): TRACE:
Can anyone help?
Thanks in advance
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- Larry Wang
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