[Bug 1939390] Re: Missing dependency: lsscsi

Gabriel Samfira 1939390 at bugs.launchpad.net
Mon Feb 21 14:20:06 UTC 2022 

I *think* we also had this problem on systems that had NVMe volumes. The
nvme-cli package is not pulled in, even though it is used by os-brick:

https://github.com/openstack/os-
brick/blob/master/os_brick/initiator/connectors/nvmeof.py#L155

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https://bugs.launchpad.net/bugs/1939390

Title:
  Missing dependency: lsscsi

Status in OpenStack Nova Compute Charm:
  In Progress
Status in python-os-brick package in Ubuntu:
  New

Bug description:
  When resizing a volume, cinder will notify nova that a volume has
  changed its size. For iSCSI attached volumes (ie: Dell Unity), the
  package lsscsi is required for that to work. Without it, you get this
  error:

  2021-08-10 09:44:02.400 1816368 INFO os_brick.initiator.connectors.iscsi [req-98b38968-a179-4a3c-bf09-dfe5dcee9b66 aa291ad6c5b4430d9a5e268850c5aed8 ff58079dba31444da859ff6f91a2f983 - 83859026773d453ca315c30285f94efa 83859026773d453ca315c30285f94efa] Found paths for volume ['/dev/disk/by-path/ip-10.123.110.4:3260-iscsi-iqn.1992-04.com.emc:cx.ckm01211605212.a4-lun-86', '/dev/disk/by-path/ip-10.123.120.4:3260-iscsi-iqn.1992-04.com.emc:cx.ckm01211605212.b4-lun-86', '/dev/disk/by-path/ip-10.123.120.5:3260-iscsi-iqn.1992-04.com.emc:cx.ckm01211605212.b5-lun-86', '/dev/disk/by-path/ip-10.123.110.5:3260-iscsi-iqn.1992-04.com.emc:cx.ckm01211605212.a5-lun-86']
  2021-08-10 09:44:02.424 1816368 WARNING nova.compute.manager [req-98b38968-a179-4a3c-bf09-dfe5dcee9b66 aa291ad6c5b4430d9a5e268850c5aed8 ff58079dba31444da859ff6f91a2f983 - 83859026773d453ca315c30285f94efa 83859026773d453ca315c30285f94efa] [instance: 6cf7a8c6-255f-4b69-812a-39dc0fa279b6] Extend volume failed, volume_id=ac43884b-916c-44b9-be46-393325ad64cc, reason: [Errno 2] No such file or directory: 'lsscsi'
  Command: lsscsi
  Exit code: -
  Stdout: None
  Stderr: None: oslo_concurrency.processutils.ProcessExecutionError: [Errno 2] No such file or directory: 'lsscsi'
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server [req-98b38968-a179-4a3c-bf09-dfe5dcee9b66 aa291ad6c5b4430d9a5e268850c5aed8 ff58079dba31444da859ff6f91a2f983 - 83859026773d453ca315c30285f94efa 83859026773d453ca315c30285f94efa] Exception during message handling: oslo_concurrency.processutils.ProcessExecutionError: [Errno 2] No such file or directory: 'lsscsi'
  Command: lsscsi
  Exit code: -
  Stdout: None
  Stderr: None
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server Traceback (most recent call last):
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/os_brick/privileged/rootwrap.py", line 171, in execute
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     return custom_execute(*cmd, **kwargs)
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/os_brick/privileged/rootwrap.py", line 142, in custom_execute
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     return putils.execute(on_execute=on_execute,
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/oslo_concurrency/processutils.py", line 388, in execute
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     obj = subprocess.Popen(cmd,
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/eventlet/green/subprocess.py", line 58, in __init__
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     subprocess_orig.Popen.__init__(self, args, 0, *argss, **kwds)
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3.8/subprocess.py", line 858, in __init__
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     self._execute_child(args, executable, preexec_fn, close_fds,
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3.8/subprocess.py", line 1704, in _execute_child
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     raise child_exception_type(errno_num, err_msg, err_filename)
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server FileNotFoundError: [Errno 2] No such file or directory: 'lsscsi'
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server 
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server During handling of the above exception, another exception occurred:
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server 
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server Traceback (most recent call last):
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/oslo_messaging/rpc/server.py", line 165, in _process_incoming
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     res = self.dispatcher.dispatch(message)
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/oslo_messaging/rpc/dispatcher.py", line 309, in dispatch
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     return self._do_dispatch(endpoint, method, ctxt, args)
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/oslo_messaging/rpc/dispatcher.py", line 229, in _do_dispatch
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     result = func(ctxt, **new_args)
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/nova/exception_wrapper.py", line 76, in wrapped
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     _emit_exception_notification(
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     self.force_reraise()
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     six.reraise(self.type_, self.value, self.tb)
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/six.py", line 703, in reraise
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     raise value
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/nova/exception_wrapper.py", line 69, in wrapped
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     return f(self, context, *args, **kw)
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/nova/compute/manager.py", line 10405, in external_instance_event
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     self.extend_volume(context, instance, event.tag)
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/nova/compute/utils.py", line 1434, in decorated_function
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     return function(self, context, *args, **kwargs)
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/nova/compute/manager.py", line 216, in decorated_function
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     compute_utils.add_instance_fault_from_exc(context,
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     self.force_reraise()
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     six.reraise(self.type_, self.value, self.tb)
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/six.py", line 703, in reraise
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     raise value
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/nova/compute/manager.py", line 205, in decorated_function
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     return function(self, context, *args, **kwargs)
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/nova/compute/manager.py", line 10262, in extend_volume
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     self.driver.extend_volume(context, connection_info, instance,
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/nova/virt/libvirt/driver.py", line 2199, in extend_volume
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     new_size = self._extend_volume(connection_info, instance,
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/nova/virt/libvirt/driver.py", line 1743, in _extend_volume
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     return vol_driver.extend_volume(connection_info, instance,
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/nova/virt/libvirt/volume/iscsi.py", line 86, in extend_volume
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     new_size = self.connector.extend_volume(connection_info['data'])
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/os_brick/utils.py", line 144, in trace_logging_wrapper
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     return f(*args, **kwargs)
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/oslo_concurrency/lockutils.py", line 360, in inner
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     return f(*args, **kwargs)
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/os_brick/initiator/connectors/iscsi.py", line 477, in extend_volume
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     return self._linuxscsi.extend_volume(
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/os_brick/initiator/linuxscsi.py", line 581, in extend_volume
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     device = self.get_device_info(volume_path)
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/os_brick/initiator/linuxscsi.py", line 114, in get_device_info
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     (out, _err) = self._execute('lsscsi')
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/os_brick/executor.py", line 52, in _execute
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     result = self.__execute(*args, **kwargs)
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3/dist-packages/os_brick/privileged/rootwrap.py", line 186, in execute
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server     raise putils.ProcessExecutionError(
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server oslo_concurrency.processutils.ProcessExecutionError: [Errno 2] No such file or directory: 'lsscsi'
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server Command: lsscsi
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server Exit code: -
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server Stdout: None
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server Stderr: None
  2021-08-10 09:44:02.497 1816368 ERROR oslo_messaging.rpc.server 

  
  Running:

  sudo apt install lsscsi

  on the compute node fixes this issue.

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