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#openstack-nova - 2018-12-03
10:52:41 bauzas I agree
10:53:06 bauzas the only thing I could think of would be cpu_mode explicitely set to None
10:53:48 izza_ [libvirt]
10:53:50 bauzas which would make the guest using a very old CPU model that doesn't support SSE1
10:53:53 bauzas SSE4*
10:54:04 izza_ live_migration_uri = qemu+ssh://stack@%s/system
10:54:10 izza_ cpu_mode = host-passthrough
10:54:16 izza_ cpu_model_extra_flags = sse4_1
10:54:22 izza_ virt_type = kvm
10:54:47 sean-k-mooney izza_: host-passthrough will give you the same feature flags as the host. you dod not need the extra flags
10:55:14 izza_ noted on this..we will remove it..
10:55:23 sean-k-mooney izza_: you have sse in the hosts /proc/cpuinfo right?
10:55:39 izza_ but we tried to remove it and set is as passthrough without flags
10:55:48 izza_ but still unable to get the other flags
10:56:07 sean-k-mooney every xeon since nehelem has had sse 4.2+
10:56:26 izza_ yes, sse4.1 is available in /proc/cpuinfo
10:56:52 sean-k-mooney izza_: and your setting cpu_mode = host-passthrough in the /etc/nova/nova-cpu.conf
10:58:01 izza_ it is set as "none" in /etc/nova/nova-cpu.conf
10:58:12 sean-k-mooney izza_: that the issue
10:58:30 izza_ what should i do?
10:58:36 sean-k-mooney /etc/nova/nova-cpu.conf is used by the compute agent /etc/nova/nova.conf is used by the schduer/conductor
10:59:07 izza_ ok will try to change it
10:59:57 izza_ we will advise you for the result
11:00:08 sean-k-mooney [[post-config|$NOVA_CPU_CONF]]
11:00:11 sean-k-mooney [libvirt]
11:00:13 sean-k-mooney cpu_mode = host-passthrough
11:00:15 sean-k-mooney virt_type = kvm
11:00:19 sean-k-mooney that is how to set it in your local.conf by the way
11:00:51 izza_ ok noted on that
11:00:54 izza_ we'll try
11:01:00 sean-k-mooney you can change it locally and then restart the nova services with sudo systemctl restart devstack@n-*
11:01:20 bauzas what sean-k-mooney said
11:01:30 sean-k-mooney * by locally i mean in /etc/nova/nova-cpu.conf
11:01:34 bauzas izza_: your n-cpu service uses the wrong file
11:01:36 izza_ thanks guys
11:04:40 sean-k-mooney bauzas: well a different file we use /etc/nova/nova-cpu.conf instead of /etc/nova/nova.conf intentionally
11:04:49 izza_ got it...already capture the cpu details after changing the said file
11:05:11 bauzas 'wrong' is maybe not the right word
11:05:28 bauzas what I mean is that n-cpu uses another conf file by default
11:05:31 bauzas but you can change this
11:05:45 sean-k-mooney yep
11:05:56 bauzas just don't use systemctl in this case
11:06:11 sean-k-mooney ya not?
11:06:25 sean-k-mooney *why not?
11:06:50 bauzas just becauses it precludes the config file name
11:07:08 bauzas sometimes I prefer stopping the service and starting it by hand
11:07:21 bauzas maybe because I'm an old guy
11:07:40 sean-k-mooney systemctl is the correct way to do that in devstack for like 2-3 releases
11:08:12 sean-k-mooney infact that devstack docs use n-cpu as the example https://docs.openstack.org/devstack/latest/systemd.html#manipulating-units
11:14:37 jangutter bauzas: I'm still sometimes using 'ifconfig', where I should be using 'ip', and really, really, should be using 'nmcli'.
11:14:50 bauzas sean-k-mooney: you misunderstood me
11:15:19 bauzas sean-k-mooney: I'm not saying to not use systemctl (although there is still a devstack option for it :p )
11:15:56 bauzas sean-k-mooney: I'm saying that, most of the times, stopping the incriminated service and restarting it by hand is preferrable
11:16:07 sean-k-mooney bauzas: noop the screen option was removed in rocky
11:16:15 bauzas gtk
11:16:44 sean-k-mooney oh you mean sudo systemctl stop devstack@n-cpu.service the nova-coumpute ...
11:17:29 sean-k-mooney runing the service directly can be usefaul for debuging
11:20:06 jangutter One thing I like is that I can go 'systemctl status PID' and get all the startup (and a bit of logs) for a service.
11:20:21 jangutter Is there something similar for docker/containers?
11:20:55 sean-k-mooney jangutter: docker logs <container name or id>
11:21:47 sean-k-mooney or depeneding on your container it may log to the hosts journal so journalctl -u <service in contienr>
11:30:41 ShilpaSD hi: All, please help me to understand, how this section, table format of notificaiotns, is added here 'https://docs.openstack.org/nova/rocky/reference/notifications.html#existing-versioned-notifications'
11:31:48 izza_ hi
11:32:28 izza_ encounetered error upon execution of tensorflow session
11:32:29 izza_ >>> sess = tf.Session()
11:33:01 izza_ 2018-12-03 11:30:11.110534: I tensorflow/core/platform/cpu_feature_guard.cc:141] Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX2 FMA
11:33:08 izza_ raceback (most recent call last):
11:33:48 izza_ were using tensorflow 1.11.0
11:34:10 izza_ we tried to upgrafe it to tensorflow 1.12.0 but same error
11:39:24 gibi ShilpaSD: let me find the code that generates that table...
11:39:49 gibi ShilpaSD: here is the code that generates the table https://github.com/openstack/nova/blob/master/doc/ext/versioned_notifications.py
11:39:50 ShilpaSD gibi: thanks for that
11:41:05 ShilpaSD gibi: how to configure this with notifications.rst?
11:41:09 ShilpaSD the linking?
11:41:58 ShilpaSD gibi: what this line is doing exactly? https://github.com/openstack/nova/blob/master/doc/source/conf.py#L46
11:43:24 gibi ShilpaSD: the conf.py line: ext.versioned_notifications instructs sphinx to load and run https://github.com/openstack/nova/blob/master/doc/ext/versioned_notifications.py#L54
11:48:42 ShilpaSD gibi:i if i have this value set this getting 'ERROR: InvocationError for command '/opt/stack/<CODE BASE>/.tox/docs/bin/python setup.py build_sphinx' (exited with code 1)' error ehile docs creation, what action i need to take?
11:49:52 ShilpaSD this is i have added >> extensions = ['sphinx.ext.autodoc', 'oslosphinx','ext.versioned_notifications']
11:50:19 ShilpaSD is i am missing any other supporting extensions?
11:51:27 gibi ShilpaSD: I don't know. This is the original commit added the notification extension https://github.com/openstack/nova/commit/05adc8d006b482e0aed2fcc9dc4885924aca74d0
11:51:39 gibi ShilpaSD: in that I did not have to add any extra extension
11:52:12 gibi ShilpaSD: btw, what do you want to achive? do you want to reuse ext.versioned_notifications outside of the nova project?
11:55:11 gibi ShilpaSD: if I insert some python error to ext/versioned_notifications.py then doc generation command prints a proper stack trace for me
11:56:09 gibi ShilpaSD: nova uses the following build command in tox: sphinx-build -W -b html -d doc/build/doctrees doc/source doc/build/html
11:57:58 gibi ShilpaSD: this part of the conf.py in nova could be intresting to you as well https://github.com/openstack/nova/blob/master/doc/source/conf.py#L24
12:03:48 ShilpaSD gibi: Hi, i am in the process of introducing notifications in Masakari, i have completed all coding and api doc, not only part remained is this sample notifications table
12:05:36 gibi ShilpaSD: so you copied ext/versioned_notifications.py from nova to masakari and would like to use it in masakari
12:05:49 ShilpaSD gibi: yes
12:06:05 gibi ShilpaSD: do you have a patch up on review that I can download and play with it locally?
12:07:09 ShilpaSD gibi: sorry for that, as of now no patch i have uploaded
12:08:09 ShilpaSD gibi: during tox, its giving error while 'Running Sphinx v1.8.2'
12:09:13 openstackgerrit Balazs Gibizer proposed openstack/nova master: Reject networks with QoS policy https://review.openstack.org/570079
12:09:13 openstackgerrit Balazs Gibizer proposed openstack/nova master: Reject interface attach with QoS aware port https://review.openstack.org/570078
12:10:33 openstackgerrit Balazs Gibizer proposed openstack/nova master: Reject networks with QoS policy https://review.openstack.org/570079
12:11:04 openstackgerrit Chris Dent proposed openstack/nova master: Clean up header encoding handling in compute API https://review.openstack.org/606967
12:11:06 gibi ShilpaSD: let me try to reproduce yor problem locally
12:13:29 ShilpaSD gibi: thanks for this
12:22:57 gibi ShilpaSD: with this change https://review.openstack.org/621558 I can make sphinx load the extension in masakari
12:23:23 gibi ShilpaSD: of course it still fails as the code in versioned_notifications.py tries to import nova
12:26:16 openstackgerrit Merged openstack/nova stable/rocky: Remove unnecessary redirect https://review.openstack.org/607400

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