On 02/05, RAI, SNEHA wrote:
Hi Team,
I am currently working on multiattach feature for HPE 3PAR cinder driver.
For this, while setting up devstack(on stable/queens) I made below change in the local.conf [[local|localrc]] ENABLE_VOLUME_MULTIATTACH=True ENABLE_UBUNTU_CLOUD_ARCHIVE=False
/etc/cinder/cinder.conf: [3pariscsi_1] hpe3par_api_url = https://192.168.1.7:8080/api/v1 hpe3par_username = user hpe3par_password = password san_ip = 192.168.1.7 san_login = user san_password = password volume_backend_name = 3pariscsi_1 hpe3par_cpg = my_cpg hpe3par_iscsi_ips = 192.168.11.2,192.168.11.3 volume_driver = cinder.volume.drivers.hpe.hpe_3par_iscsi.HPE3PARISCSIDriver hpe3par_iscsi_chap_enabled = True hpe3par_debug = True image_volume_cache_enabled = True
/etc/cinder/policy.json: 'volume:multiattach': 'rule:admin_or_owner'
Added https://review.opendev.org/#/c/560067/2/cinder/volume/drivers/hpe/hpe_3par_c... change in the code.
But I am getting below error in the nova log: Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [None req-2cda6e90-fd45-4bfe-960a-7fca9ba4abab demo admin] [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] Instance failed block device setup: MultiattachNotSupportedByVirtDriver: Volume dc25f09a-6ae1-4b06-a814-73a8afaba62f has 'multiattach' set, which is not supported for this instance. Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] Traceback (most recent call last): Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] File "/opt/stack/nova/nova/compute/manager.py", line 1615, in _prep_block_device Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] wait_func=self._await_block_device_map_created) Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] File "/opt/stack/nova/nova/virt/block_device.py", line 840, in attach_block_devices Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] _log_and_attach(device) Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] File "/opt/stack/nova/nova/virt/block_device.py", line 837, in _log_and_attach Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] bdm.attach(*attach_args, **attach_kwargs) Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] File "/opt/stack/nova/nova/virt/block_device.py", line 46, in wrapped Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] ret_val = method(obj, context, *args, **kwargs) Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] File "/opt/stack/nova/nova/virt/block_device.py", line 620, in attach Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] virt_driver, do_driver_attach) Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] File "/usr/local/lib/python2.7/dist-packages/oslo_concurrency/lockutils.py", line 274, in inner Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] return f(*args, **kwargs) Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] File "/opt/stack/nova/nova/virt/block_device.py", line 617, in _do_locked_attach Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] self._do_attach(*args, **_kwargs) Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] File "/opt/stack/nova/nova/virt/block_device.py", line 602, in _do_attach Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] do_driver_attach) Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] File "/opt/stack/nova/nova/virt/block_device.py", line 509, in _volume_attach Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] volume_id=volume_id) Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa] MultiattachNotSupportedByVirtDriver: Volume dc25f09a-6ae1-4b06-a814-73a8afaba62f has 'multiattach' set, which is not supported for this instance. Apr 29 04:23:04 CSSOSBE04-B09 nova-compute[31396]: ERROR nova.compute.manager [instance: fcaa5a47-fc48-489d-9827-6533bfd1a9fa]
Apr 29 05:41:20 CSSOSBE04-B09 nova-compute[20455]: DEBUG nova.virt.libvirt.driver [-] Volume multiattach is not supported based on current versions of QEMU and libvirt. QEMU must be less than 2.10 or libvirt must be greater than or equal to 3.10. {{(pid=20455) _set_multiattach_support /opt/stack/nova/nova/virt/libvirt/driver.py:619}}
stack@CSSOSBE04-B09:/tmp$ virsh --version 3.6.0 stack@CSSOSBE04-B09:/tmp$ kvm --version QEMU emulator version 2.10.1(Debian 1:2.10+dfsg-0ubuntu3.8~cloud1) Copyright (c) 2003-2017 Fabrice Bellard and the QEMU Project developers
Hi Sneha, I don't know much about this side of Nova, but reading the log error I would say that you either need to update your libvirt version from 3.6.0 to 3.10, or you need to downgrade your QEMU version to something prior to 2.10. The later is probably easier. I don't use Ubuntu, but according to the Internet you can list available versions with "apt-cache policy qemu" and then install or downgrade to the specific version with "sudo apt-get install qemu=2.5\*" if you wanted to install version 2.5 I hope this helps. Cheers, Gorka.
openstack volume show -c multiattach -c status sneha1 +-------------+-----------+ | Field | Value | +-------------+-----------+ | multiattach | True | | status | available | +-------------+-----------+
cinder extra-specs-list +--------------------------------------+-------------+--------------------------------------------------------------------+ | ID | Name | extra_specs | +--------------------------------------+-------------+--------------------------------------------------------------------+ | bd077fde-51c3-4581-80d5-5855e8ab2f6b | 3pariscsi_1 | {'volume_backend_name': '3pariscsi_1', 'multiattach': '<is> True'}| +--------------------------------------+-------------+--------------------------------------------------------------------+
echo $OS_COMPUTE_API_VERSION 2.60
pip list | grep python-novaclient DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7. python-novaclient 13.0.0
How do I fix this version issue on my setup to proceed? Please help.
Thanks & Regards, Sneha Rai