[Openstack] Instance IP assignment problem
Emilien Macchi
emilien.openstack at gmail.com
Thu May 3 09:11:04 UTC 2012
Ok :
http://paste.openstack.org/show/14797/
I know where is the problem but I dont know yet how to fix it :
- Quantum creates TAP interface on ESSEX-2
- From ESSEX-2, I can't ping VMs on ESSEX-1
Here my ovs_quantum_plugin.ini :
[DATABASE]
sql_connection =
mysql://ovs_quantum:password@10.68.1.40:3306/ovs_quantum
[OVS]
integration-bridge = br-int
[AGENT]
root_helper = sudo
Do we need enable bridge ?
Le jeudi 03 mai 2012 à 10:00 +0100, Bilel Msekni a écrit :
> èmm , can you do this on your instance : nova show %instance_Id so
> that i may see the problem in the resume of spawning ?
>
> and are you sure you have enough fixed ip addresses left for use ?
>
> The configuration of nova and quantum is almost the same as me and the
> instances are getting Fixed Ips without any problem !
>
>
>
>
> ______________________________________________________________________
> Subject: RE: [Openstack] Instance IP assignment problem
> From: emilien.openstack at gmail.com
> To: skible at hotmail.fr
> CC: salmanmk at live.com; openstack at lists.launchpad.net
> Date: Thu, 3 May 2012 10:48:43 +0200
>
> All seems alright but not working yet.
>
>
> http://paste.openstack.org/show/14791/
>
>
>
> I have executed on both servers :
>
> ovs-vsctl add-port br-int eth1
>
>
> Need I do something else ?
>
> How the DHCP is working in this case ?
>
>
>
>
>
>
> Le jeudi 03 mai 2012 à 09:29 +0100, Bilel Msekni a écrit :
>
> Then the problem isn't in the instance but in the nova-network
> service , please check if it is working well
> as well as give us the output log when you attempt to create a
> new instance.
>
>
>
> ______________________________________________________________
>
> Subject: RE: [Openstack] Instance IP assignment problem
> From: emilien.openstack at gmail.com
> To: skible at hotmail.fr
> CC: salmanmk at live.com; openstack at lists.launchpad.net
> Date: Thu, 3 May 2012 10:21:37 +0200
>
> Fixed IP
>
>
>
> Le jeudi 03 mai 2012 à 09:15 +0100, Bilel Msekni a écrit :
>
> Fixed IP or Floating IP ?
>
>
>
> ______________________________________________________
>
>
> From: emilien.openstack at gmail.com
> To: salmanmk at live.com
> Date: Thu, 3 May 2012 09:55:31 +0200
> CC: openstack at lists.launchpad.net
> Subject: Re: [Openstack] Instance IP assignment
> problem
>
> Hi,
>
>
> As I told you, I have also a problem for instance IP
> assignement.
>
>
> My architecture :
>
> I use Quantum with OVS plugin on 2 servers Essex-1 &
> Essex-2. Essex-1 runs all services and Essex-2 runs
> OVS, Quantum-agent & nova-compute only.
>
> You can see more details here.
>
> My configurations files are here and in my
> documentation.
>
>
>
> Problem Description :
>
> When an instance is created in ESSEX-1, all is working
> (network).
>
> But when the VM is started on ESSEX-2, it does not get
> an IP address. (log file)
>
> I'm sure the problem comes from OVS connection with
> ESSEX-1.
>
>
> Do I need to configure something like a trunk or a
> tunnel between Essex-1 & Essex-2 ?
>
> I miss something in my configuration, if you have any
> idea...
>
>
> Regards
>
>
> Emilien
>
>
> Le mardi 01 mai 2012 à 14:35 -0500, Salman Malik a
> écrit :
>
> It may help if you can share the log of your
> launched instance as well. There is a
> possibility that we both are having the same
> issue.
> Netstack developers can give a definitive
> answer to this, but it would be interesting to
> learn what goes wrong with a launched
> instance.
>
> Salman
>
>
>
>
> ______________________________________________
>
>
>
> Subject: RE: [Openstack] Instance IP
> assignment problem
> From: emilien.openstack at gmail.com
> To: salmanmk at live.com
> CC: jorge.delacruz at stackops.com;
> openstack at lists.launchpad.net
> Date: Tue, 1 May 2012 21:26:26 +0200
>
> Le mardi 01 mai 2012 à 14:22 -0500, Salman
> Malik a écrit :
>
> Regarding L3 gateway, I believe its
> not necessary to have one (as the VM
> hasn't obtained an IP right now, so it
> can't talk to anything outside its
> net), but I am not sure.
> Regarding your problem, do you see any
> DHCP responses from the DHCP server ?
> I am asking this because I was having
> a similar problem earlier where I was
> getting assigned an IP address no in
> my desired fixed_network and I believe
> that was cause by another interfering
> DHCP server that was replying to
> discover messages before the
> nova-network could.
>
>
> Here my nova.conf and I don't have any
> interfering DHCP server :
>
> https://github.com/EmilienM/doc-openstack/blob/master/Configuration%20Files/Essex-1/nova.conf
>
>
> Thanks
>
>
> Salman
>
>
>
>
> ______________________________________
>
>
>
>
> Subject: RE: [Openstack] Instance IP
> assignment problem
> From: emilien.openstack at gmail.com
> To: salmanmk at live.com
> CC: jorge.delacruz at stackops.com;
> openstack at lists.launchpad.net
> Date: Tue, 1 May 2012 21:06:01 +0200
>
> Hi Salman,
>
>
> I'm thinking about a networking issue.
> Where is your L3 gateway in this
> architecture ? Maybe do you need an ip
> helper tool to redirect DHCP
> broadcast ?
>
>
> What do you think about my problem
> (follow up to my last e-mail) ?
>
>
> Thanks
>
>
> Emilien
>
> Le mardi 01 mai 2012 à 14:00 -0500,
> Salman Malik a écrit :
>
> Hi,
>
> Here is the error log:
> http://pastebin.com/KrNZDrvD
> and nova.conf:
> http://pastebin.com/Fvd6dSZs
>
> Emilien, I am trying to get an
> understanding of how different
> Quantum plugins work with
> OpenStack. Ryu plugin is
> particularly interesting as it
> uses an OpenFlow controller to
> configure Vswitches.
>
> The problem I am faced with is
> (I think ) that I already have
> a private network and Quantum
> should assign IP addresses to
> instances using DHCP. But
> instances send out discover
> message on laucnh but never
> find a DHCP server (although
> there are 2 dnsmasqs
> running).
>
> Any ideas?
>
> Thanks,
> Salman
>
>
>
>
> ______________________________
>
>
>
>
>
> Date: Tue, 1 May 2012 20:43:44
> +0200
> Subject: Re: [Openstack]
> Instance IP assignment problem
> From:
> jorge.delacruz at stackops.com
> To:
> emilien.openstack at gmail.com
> CC:
> openstack at lists.launchpad.net;
> salmanmk at live.com
>
> Hi Emilien and Salman,
> Please, could you upload all
> the files, errors and conf in
> pastebin or something like
> that?
> I have troubles to open in
> phone :)
> Thank you
> El 01/05/2012 20:39, "Emilien
> Macchi"
> <emilien.openstack at gmail.com>
> escribió:
>
> Hi,
>
>
> I have a similar
> problem when I create
> a network per
> project_id with
> Quantum.
>
>
> My VMs don't get IP
> and I can't understand
> why today.
>
> But when I create a
> private network for
> all projects, VMs get
> an IP and all is
> working well.
> Do you have the same
> problem ?
>
>
> Salman, I'm
> interesting about your
> nova.conf. I can see
> you are using Ryu ?
> Can you tell me more
> about your "use case"
> or architecture ?
>
>
> Thanks
>
>
> Le mardi 01 mai 2012 à
> 12:28 -0500, Salman
> Malik a écrit :
>
> Hi Jorge,
>
> Thanks for
> looking into
> the post.
> I have made
> changes to the
> nova.conf file
> so that I only
> use 10.0.0.x
> network (but
> the problem is
> still the
> same). For
> this
> configuration,
> I assume that
> it will give
> out IPs to
> instances
> starting from
> 10.0.0.11. And
> just to inform
> you, my eth1
> is configured
> to be
> 10.0.0.10
> (which is a VM
> itself, and
> eth1 is
> configured as
> a host-only
> network with
> no DHCP) and
> this interface
> is plugged in
> the
> integration
> bridge used by
> quantum
> plugins.
>
> Thanks,
> Salman
>
> PS: Error log
> of a launched
> instance is
> also attached.
>
>
>
>
> ______________
>
>
>
>
>
>
> Date: Tue, 1
> May 2012
> 19:03:49 +0200
> Subject: Re:
> [Openstack]
> Instance IP
> assignment
> problem
> From:
> jorge.delacruz at stackops.com
> To:
> salmanmk at live.com
> CC:
> openstack at lists.launchpad.net
>
> Im not really
> sure but you
> are using
> range for your
> environment
> 10.0.3.x and
> 10.0.0.x for
> fixed.
> Can you attach
> a nova network
> conf?
> Regards
> El 01/05/2012
> 18:56, "Salman
> Malik"
> <salmanmk at live.com> escribió:
>
> Hi
> Guys,
>
> Can
> anyone
> provide any insight to the following question:
> https://answers.launchpad.net/nova/+question/195439
>
> Thanks,
> Salman
>
>
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