[ovirt-users] oVirt 4 and Neutron
Marcin Mirecki
mmirecki at redhat.com
Mon Dec 5 12:39:21 UTC 2016
Devin,
The ovs-vswitchd process pegged at 100% is a known OVS problem. It is interesting however
that you see it on all the hosts at the same time. Can you please report this against OVS?
I assume the OVS team should take interest in this (they will also know what additional
info to ask about).
Could you please send me the ui.log and engine.log (/var/log/ovirt-engine) and
/var/log/ovirt-provider-ovn.log (from the host where the provider is located)
when you see the UI error again?
> One other thing that I notice is that when I got to Provision a Virtual Machine from the Main Data Center, my Networks don't show under the NIC where I could select them? Am I missing something on this?
Could you please elaborate on this? I am not quite sure I understand this.
Could it be that the network is not assigned to the cluster?
Marcin
----- Original Message -----
> Sent: Friday, December 2, 2016 11:15:22 PM
> Subject: Re: [ovirt-users] oVirt 4 and Neutron
>
> Ok i figured out my issue, the network wasn't configured under the Cluster
> section to be allowed to see, I have now been able to spin up my own
> network/subnet and then spin up 2 instances both getting DHCP addresses and
> able to talk to each other. The ONLY issue i'm seeing is that random UI
> error that i have e-mailed over to Alexander about. I'll let you know if i
> have any other questions. I think for now I'm golden.
>
>
> On Fri, Dec 2, 2016 at 1:23 PM, Devin Acosta <devin at pabstatencio.com> wrote:
>
> > Marcin,
> >
> > So an update on my situation, I restarted all OpenVSwitch processes on all
> > boxes and was able to get the CPU issue with ovs-vswitchd to return to
> > normal. So I believe all those issues are resolved. I can create
> > networks/subnets, minus that one strange UI issue which I'll work with
> > Alexander Wels to resolve. When I still go to launch a Virtual Machine,
> > should I be seeing the subnets that I created? Am I missing something? It
> > seems like i'm about 95% there and I am just missing something.
> >
> >
> > On Fri, Dec 2, 2016 at 11:44 AM, Devin Acosta <devin at pabstatencio.com>
> > wrote:
> >
> >> Marcin,
> >>
> >> I installed the OVN-Central on a dedicated VM that lives on the ovirtmgmt
> >> network, I also installed the OVN-Provider on this same instance. I then
> >> installed the OVN-Controllers on all 3 of my oVirt Nodes, with the OVN
> >> provider driver, and configured the vdsm ovn-controller {central-ip}
> >> {ovirt-node-ip} on each of the boxes. It appears to be running but what I
> >> am noticing is that the ovs-vswitchd process is pegged at 100% on all the
> >> oVirt nodes.
> >>
> >> So for instance from oVirt Node 3 (IP 75) the ovs-vsctl shows the IPs for
> >> the other 2 nodes in it's configuration. It seems to be that way across
> >> all
> >> 3 nodes, they know about the other nodes in the cluster. I was able to
> >> create a network inside of oVIRT using the external provider. After i
> >> create a subnet inside oVirt I do get an error at the top but seems to be
> >> ok?
> >>
> >>
> >> [image: Inline image 2]
> >>
> >> (Output from Node3 IP 75, of: ovs-vsctl show)
> >>
> >> 61af799c-a621-445e-8183-23dcb38ea3cc
> >> Bridge br-int
> >> fail_mode: secure
> >> Port "ovn-c0dc09-0"
> >> Interface "ovn-c0dc09-0"
> >> type: geneve
> >> options: {csum="true", key=flow, remote_ip="172.10.10.73"}
> >> Port "ovn-456949-0"
> >> Interface "ovn-456949-0"
> >> type: geneve
> >> options: {csum="true", key=flow, remote_ip="172.10.10.74"}
> >> Port br-int
> >> Interface br-int
> >> type: internal
> >> ovs_version: "2.6.90"
> >>
> >>
> >>
> >> Example where the (ovs-vswitchd) is running at 100% on all 3 oVirt Nodes.
> >>
> >> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+
> >> COMMAND
> >> 1768 root 10 -10 49680 10808 9388 R 100.0 0.0 24:48.85
> >> ovs-vswitchd
> >>
> >>
> >> [root at ovirt01 openvswitch]# tail -f ovs-vswitchd.log
> >> 2016-12-02T18:27:12.174Z|00604|poll_loop|INFO|Dropped 557231 log
> >> messages in last 6 seconds (most recently, 0 seconds ago) due to excessive
> >> rate
> >> 2016-12-02T18:27:12.174Z|00605|poll_loop|INFO|wakeup due to 0-ms timeout
> >> at vswitchd/bridge.c:3031 (100% CPU usage)
> >> 2016-12-02T18:27:18.174Z|00606|poll_loop|INFO|Dropped 536053 log
> >> messages in last 6 seconds (most recently, 0 seconds ago) due to excessive
> >> rate
> >> 2016-12-02T18:27:18.174Z|00607|poll_loop|INFO|wakeup due to 0-ms timeout
> >> at vswitchd/bridge.c:3031 (100% CPU usage)
> >> 2016-12-02T18:27:24.174Z|00608|poll_loop|INFO|Dropped 536369 log
> >> messages in last 6 seconds (most recently, 0 seconds ago) due to excessive
> >> rate
> >> 2016-12-02T18:27:24.174Z|00609|poll_loop|INFO|wakeup due to 0-ms timeout
> >> at vswitchd/bridge.c:3031 (100% CPU usage)
> >> 2016-12-02T18:27:30.174Z|00610|poll_loop|INFO|Dropped 532134 log
> >> messages in last 6 seconds (most recently, 0 seconds ago) due to excessive
> >> rate
> >> 2016-12-02T18:27:30.174Z|00611|poll_loop|INFO|wakeup due to 1-ms timeout
> >> at vswitchd/bridge.c:3031 (100% CPU usage)
> >> 2016-12-02T18:27:36.174Z|00612|poll_loop|INFO|Dropped 531659 log
> >> messages in last 6 seconds (most recently, 0 seconds ago) due to excessive
> >> rate
> >> 2016-12-02T18:27:36.174Z|00613|poll_loop|INFO|wakeup due to 0-ms timeout
> >> at vswitchd/bridge.c:3031 (99% CPU usage)
> >>
> >>
> >> One other thing that I notice is that when I got to Provision a Virtual
> >> Machine from the Main Data Center, my Networks don't show under the NIC
> >> where I could select them? Am I missing something on this?
> >>
> >> Thanks very much for your help.
> >>
> >> Devin Acosta
> >>
> >>
> >> On Fri, Dec 2, 2016 at 5:16 AM, Marcin Mirecki <mmirecki at redhat.com>
> >> wrote:
> >>
> >>> Devin,
> >>>
> >>> > I presume the OVN Controller should just be some VM that is on the
> >>> > ovirtmgmt network, or is there a preferred place to install the OVN
> >>> > controller software?
> >>>
> >>> Please note the difference between OVN-Central and OVN-Controller:
> >>> OVN-Central is the central part of OVN, storing the logical
> >>> configuration and controlling the many OVN-Controllers
> >>> OVN-Controller is the piece of software which resides on the
> >>> ovirt-hosts, and manages the local OVS setup on the host.
> >>>
> >>> OVN-Central
> >>> / | \
> >>> / | \
> >>> / | \
> >>> / | \
> >>> OVN-Controller OVN-Controller OVN-Controller
> >>>
> >>>
> >>> OVN-central can be installed anywhere , as long as it can communicate
> >>> with the engine and all the hosts.
> >>> During development we install it along the ovirt engine for convinience.
> >>>
> >>> OVN-Controller must be installed on every ovirt host.
> >>>
> >>>
> >>> >I then also assume I install the OVN agents onto all
> >>> > the oVirt Nodes.
> >>>
> >>> Short answer: Yes
> >>>
> >>> Longe answer: If you plan not to use external networks on some clusters,
> >>> you
> >>> can skip its hosts.
> >>> You can choose the clusters which support the external network by
> >>> assigning the
> >>> network to clusters.
> >>>
> >>> > I see
> >>> > that when you go to add the External Provider, does OVN Controller use
> >>> > authentication, is there any information I would need to have besides
> >>> > knowing which node it's on in order to add it to external provider?
> >>>
> >>> For now it is only the url of the provider.
> >>> The provider is still under development, authentication is still just an
> >>> empty mock.
> >>>
> >>> >Would I
> >>> > need to have any bridges or OVS configured on the nodes for this to
> >>> work or
> >>> > just install the services and get them configured and it just works?
> >>>
> >>> We are using the default 'br-int' bridge which OVN is using. All should
> >>> be configured
> >>> when OVS/OVN is installed.
> >>>
> >>> Let me know if I can help with anything else.
> >>> Marcin
> >>>
> >>>
> >>>
> >>> ----- Original Message -----
> >>> > From: "Devin Acosta" <devin at pabstatencio.com>
> >>> > To: "Marcin Mirecki" <mmirecki at redhat.com>
> >>> > Cc: "users" <Users at ovirt.org>, "Yaniv Dary" <ydary at redhat.com>
> >>> > Sent: Thursday, December 1, 2016 6:19:07 PM
> >>> > Subject: Re: [ovirt-users] oVirt 4 and Neutron
> >>> >
> >>> > I have manually created the RPM's successfully, I just want to clarify
> >>> a
> >>> > few items so I make sure I'm deploying this according to best practice.
> >>> >
> >>> > I presume the OVN Controller should just be some VM that is on the
> >>> > ovirtmgmt network, or is there a preferred place to install the OVN
> >>> > controller software? I then also assume I install the OVN agents onto
> >>> all
> >>> > the oVirt Nodes. My take on this is that this OVN replaces the more
> >>> complex
> >>> > Neutron/OVS installation, and makes for a more simple deployment. I
> >>> see
> >>> > that when you go to add the External Provider, does OVN Controller use
> >>> > authentication, is there any information I would need to have besides
> >>> > knowing which node it's on in order to add it to external provider?
> >>> Would I
> >>> > need to have any bridges or OVS configured on the nodes for this to
> >>> work or
> >>> > just install the services and get them configured and it just works?
> >>> >
> >>> >
> >>> > Your assistance is appreciated.
> >>> >
> >>> > On Thu, Dec 1, 2016 at 3:54 AM, Marcin Mirecki <mmirecki at redhat.com>
> >>> wrote:
> >>> >
> >>> > > Devin,
> >>> > >
> >>> > > The openvswitch OVN packages must be build manually at the moment.
> >>> It is
> >>> > > still not available either in the repos, nor as a download.
> >>> > > For now please use the procedure attached below to build the OVN
> >>> rpm's.
> >>> > >
> >>> > > I am not sure where 'firewalld-system' comes from. Is it not
> >>> > > 'firewalld-filesystem'?
> >>> > > This should be available from the standard repo.
> >>> > >
> >>> > > The ovirt-provider-ovn is being developed quite actively, and the
> >>> blogpost
> >>> > > is already somewhat outdated (even though it's not even a month
> >>> old). I
> >>> > > will try to update it asap.
> >>> > >
> >>> > > Thanks,
> >>> > > Marcin
> >>> > >
> >>> > >
> >>> > > BUILDING PROVIDER RPMS:
> >>> > > ----------------------
> >>> > > git clone https://gerrit.ovirt.org/ovirt-provider-ovn
> >>> > > make rpm
> >>> > >
> >>> > >
> >>> > >
> >>> > >
> >>> > > BUILDING OVN RPMS:
> >>> > > ------------------
> >>> > >
> >>> > > Clone the repository:
> >>> > >
> >>> > > git clone https://github.com/openvswitch/ovs
> >>> > >
> >>> > > Install the following packages, as they are need to build ovn:
> >>> > >
> >>> > > yum -y install gcc make python-devel openssl-devel kernel-devel
> >>> graphviz
> >>> > > kernel-debug-devel autoconf automake rpm-build redhat-rpm-config
> >>> rpm-build
> >>> > > rpmdevtools bash-completion autoconf automake libtool PyQt4 groff
> >>> > > libcap-ng-devel python-twisted-core python-zope-interface graphviz
> >>> > > openssl-devel selinux-policy-devel
> >>> > >
> >>> > > Build the ovn rpms:
> >>> > >
> >>> > > cd ovs
> >>> > > ./boot.sh
> >>> > > ./configure
> >>> > > make dist
> >>> > > cp openvswitch-<version>.tar.gz $HOME/rpmbuild/SOURCES
> >>> > > cd $HOME/rpmbuild/SOURCES
> >>> > > tar xzf openvswitch-<version>.tar.gz
> >>> > > cd openvswitch-<version>
> >>> > > rpmbuild -bb rhel/openvswitch-fedora.spec
> >>> > >
> >>> > > The built rpms will reside here: ~/rpmbuild/RPMS/x86_64/
> >>> > >
> >>> > > --------------------
> >>> > >
> >>> > >
> >>> > >
> >>> > >
> >>> > >
> >>> > >
> >>> > >
> >>> > > ----- Original Message -----
> >>> > > > From: "Yaniv Dary" <ydary at redhat.com>
> >>> > > > To: "Devin Acosta" <devin at pabstatencio.com>, "Marcin Mirecki" <
> >>> > > mmirecki at redhat.com>
> >>> > > > Cc: "users" <Users at ovirt.org>
> >>> > > > Sent: Thursday, December 1, 2016 11:15:00 AM
> >>> > > > Subject: Re: [ovirt-users] oVirt 4 and Neutron
> >>> > > >
> >>> > > > Adding Marcin to help with this.
> >>> > > >
> >>> > > > Yaniv Dary
> >>> > > > Technical Product Manager
> >>> > > > Red Hat Israel Ltd.
> >>> > > > 34 Jerusalem Road
> >>> > > > Building A, 4th floor
> >>> > > > Ra'anana, Israel 4350109
> >>> > > >
> >>> > > > Tel : +972 (9) 7692306
> >>> > > > 8272306
> >>> > > > Email: ydary at redhat.com
> >>> > > > IRC : ydary
> >>> > > >
> >>> > > >
> >>> > > > On Thu, Dec 1, 2016 at 6:42 AM, Devin Acosta <
> >>> devin at pabstatencio.com>
> >>> > > wrote:
> >>> > > >
> >>> > > > >
> >>> > > > > Yaniv,
> >>> > > > >
> >>> > > > > I am looking at the page that talks about ovirt-provider-ovn,
> >>> and it
> >>> > > > > sounds like something I want to try. However the document seems
> >>> to be
> >>> > > not
> >>> > > > > complete, and I'm not sure i fully understand how it should be
> >>> > > deployed.
> >>> > > > > When I downloaded the "ovirt-provider-ovn-driver-0-1.noarch.rpm"
> >>> and
> >>> > > try
> >>> > > > > to install on the oVIRT nodes it complains about needing other
> >>> packages
> >>> > > > > such as:
> >>> > > > >
> >>> > > > > - openvswitch-ovn-central
> >>> > > > > - python-openvswitch
> >>> > > > > - firewalld-system
> >>> > > > > - openvswitch-ovn-host
> >>> > > > >
> >>> > > > > I don't see anywhere where it talks about getting access to the
> >>> RPMS
> >>> > > for
> >>> > > > > openvswitch-ovn-central. Also I presume like Neutron I would
> >>> install
> >>> > > OVN on
> >>> > > > > a Master node and then install some clients on the nodes? Can you
> >>> > > provide
> >>> > > > > me additional information on this?
> >>> > > > >
> >>> > > > >
> >>> > > > >
> >>> > > > > On Tue, Nov 22, 2016 at 1:43 AM, Yaniv Dary <ydary at redhat.com>
> >>> wrote:
> >>> > > > >
> >>> > > > >> We are working on a native path to SDN via OVN (experimental at
> >>> this
> >>> > > > >> point):
> >>> > > > >> https://www.ovirt.org/blog/2016/11/ovirt-provider-ovn/
> >>> > > > >>
> >>> > > > >> Using Neutron is an option, but at some point the native option
> >>> might
> >>> > > be
> >>> > > > >> easier to use (we want to add a UI for it and tighter
> >>> integration).
> >>> > > > >>
> >>> > > > >> Yaniv Dary
> >>> > > > >> Technical Product Manager
> >>> > > > >> Red Hat Israel Ltd.
> >>> > > > >> 34 Jerusalem Road
> >>> > > > >> Building A, 4th floor
> >>> > > > >> Ra'anana, Israel 4350109
> >>> > > > >>
> >>> > > > >> Tel : +972 (9) 7692306
> >>> > > > >> 8272306
> >>> > > > >> Email: ydary at redhat.com
> >>> > > > >> IRC : ydary
> >>> > > > >>
> >>> > > > >>
> >>> > > > >> On Tue, Nov 22, 2016 at 5:09 AM, Devin Acosta <
> >>> devin at pabstatencio.com
> >>> > > >
> >>> > > > >> wrote:
> >>> > > > >>
> >>> > > > >>> oVirt Users:
> >>> > > > >>>
> >>> > > > >>> My work is currently deploying oVirt 4.0.5 into our Development
> >>> > > > >>> environment. I see there use to be a maintained Openstack
> >>> Neutron
> >>> > > image
> >>> > > > >>> that could be used with oVirt to provide SDN functionality. I'm
> >>> > > > >>> suspecting
> >>> > > > >>> that the reason for the image no longer being maintained is
> >>> because
> >>> > > it
> >>> > > > >>> became a hassle to keep updated and patched. From what I
> >>> understand
> >>> > > the
> >>> > > > >>> current idea is to just point your oVirt installation to an
> >>> already
> >>> > > > >>> installed Openstack setup. I can easily install an image and
> >>> install
> >>> > > the
> >>> > > > >>> latest Openstack (Keystone/Neutron) and then point oVirt to
> >>> it, but I
> >>> > > > >>> want
> >>> > > > >>> to understand if that is the proper way to move forward. Is
> >>> there a
> >>> > > > >>> general
> >>> > > > >>> consensus with the way oVirt is moving in regards to Software
> >>> Defined
> >>> > > > >>> Networking and Neutron in general? Just want to ensure I
> >>> understand
> >>> > > it
> >>> > > > >>> clearly before just installing my own Neutron if there is
> >>> going to be
> >>> > > > >>> another method.
> >>> > > > >>>
> >>> > > > >>> Any feedback is appreciated.
> >>> > > > >>>
> >>> > > > >>> Devin Acosta RHCA
> >>> > > > >>>
> >>> > > > >>>
> >>> > > > >>> _______________________________________________
> >>> > > > >>> Users mailing list
> >>> > > > >>> Users at ovirt.org
> >>> > > > >>> http://lists.ovirt.org/mailman/listinfo/users
> >>> > > > >>>
> >>> > > > >>>
> >>> > > > >>
> >>> > > > >
> >>> > > > >
> >>> > > > > --
> >>> > > > >
> >>> > > > > Devin Acosta
> >>> > > > > Red Hat Certified Architect, LinuxStack
> >>> > > > > 602-354-1220 || devin at linuxguru.co
> >>> > > > >
> >>> > > >
> >>> > >
> >>> >
> >>> >
> >>> >
> >>> > --
> >>> >
> >>> > Devin Acosta
> >>> > Red Hat Certified Architect, LinuxStack
> >>> > 602-354-1220 || devin at linuxguru.co
> >>> >
> >>>
> >>
> >>
> >>
> >> --
> >>
> >> Devin Acosta
> >> Red Hat Certified Architect, LinuxStack
> >> 602-354-1220 || devin at linuxguru.co
> >>
> >
> >
> >
> > --
> >
> > Devin Acosta
> > Red Hat Certified Architect, LinuxStack
> > 602-354-1220 || devin at linuxguru.co
> >
>
>
>
> --
>
> Devin Acosta
> Red Hat Certified Architect, LinuxStack
> 602-354-1220 || devin at linuxguru.co
>
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