cinder: 'module' object has no attribute 'PackException'

asked 2016-05-28 14:46:55 -0600

Ach gravatar image


When I try to install "c-vol" service on one of my compute nodes, the service shows an error and fails to start, I tried so hard to find what is the issue, I checked on internet a lot, but nothing, it could be something that I have to clean up on the server, but I don't know what it is exactly. (I checked the volume groups and nothing is missing).

Thank you,

Waiting for your answers, below you will find my cinder.conf and the logs from c-vol service:


memcache_servers =
signing_dir = /var/cache/cinder
cafile = /opt/stack/data/ca-bundle.pem
auth_uri =
project_domain_id = default
project_name = service
user_domain_id = default
password = system
username = cinder
auth_url =
auth_plugin = password

os_privileged_user_tenant = service
os_privileged_user_password = system
os_privileged_user_name = nova
glance_api_servers =
osapi_volume_workers = 3
logging_exception_prefix = %(color)s%(asctime)s.%(msecs)03d TRACE %(name)s %(instance)s
logging_debug_format_suffix = from (pid=%(process)d) %(funcName)s %(pathname)s:%(lineno)d
logging_default_format_string = %(asctime)s.%(msecs)03d %(color)s%(levelname)s %(name)s [-%(color)s] %(instance)s%(color)s%(message)s
logging_context_format_string = %(asctime)s.%(msecs)03d %(color)s%(levelname)s %(name)s [%(request_id)s %(user_id)s %(project_id)s%(color)s] %(instance)s%(color)s%(message)s
volume_clear = zero
rpc_backend = rabbit
default_volume_type = lvmdriver-1
enabled_backends = lvmdriver-1
os_region_name = RegionOne
enable_v1_api = true
periodic_interval = 60
state_path = /opt/stack/data/cinder
osapi_volume_listen =
osapi_volume_extension = cinder.api.contrib.standard_extensions
rootwrap_config = /etc/cinder/rootwrap.conf
api_paste_config = /etc/cinder/api-paste.ini
iscsi_helper = tgtadm
verbose = True
debug = True
auth_strategy = keystone
nova_catalog_admin_info = compute:nova:adminURL
nova_catalog_info = compute:nova:publicURL

connection = mysql+pymysql://root:system@

lock_path = /opt/stack/data/cinder

lvm_type = default
iscsi_helper = tgtadm
volume_group = stack-volumes-lvmdriver-1
volume_driver = cinder.volume.drivers.lvm.LVMVolumeDriver
volume_backend_name = lvmdriver-1

rabbit_userid = stackrabbit
rabbit_password = system
rabbit_hosts =

and here's the logs:

No handlers could be found for logger "oslo_config.cfg"
2016-05-28 15:34:13.062 WARNING oslo_reports.guru_meditation_report [-] Guru mediation now registers SIGUSR1 and SIGUSR2 by default for backward compatibility. SIGUSR1 will no longer be registered in a future release, so please use SIGUSR2 to generate reports.
2016-05-28 15:34:13.063 DEBUG oslo_concurrency.lockutils [-] Acquired semaphore "singleton_lock" from (pid=25002) lock /usr/local/lib/python2.7/dist-packages/oslo_concurrency/
2016-05-28 15:34:13.063 DEBUG oslo_concurrency.lockutils [-] Releasing semaphore "singleton_lock" from (pid=25002) lock /usr/local/lib/python2.7/dist-packages/oslo_concurrency/
2016-05-28 15:34:13.730 ERROR cinder.cmd.volume [-] Volume service ets-blade-19@lvmdriver-1 failed to start.
2016-05-28 15:34:13.730 TRACE cinder.cmd.volume Traceback (most recent call last):
2016-05-28 15:34:13.730 TRACE cinder.cmd.volume   File "/opt/stack/cinder/cinder/cmd/", line 77, in main
2016-05-28 15:34:13.730 TRACE cinder.cmd.volume     binary='cinder-volume')
2016-05-28 15:34:13.730 TRACE cinder.cmd.volume   File "/opt/stack/cinder/cinder/", line 251, in ...
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