[ovirt-users] oVirt 4 and Neutron
Devin Acosta
devin at pabstatencio.com
Fri Dec 2 20:23:05 UTC 2016
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
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