[Openstack] Instance IP assignment problem
Emilien Macchi
emilien.openstack at gmail.com
Thu May 3 11:01:24 UTC 2012
Can you send my your nova.conf of nova-compute servers ?
I'm thinking about flat interface...
Le jeudi 03 mai 2012 à 10:26 +0100, Bilel Msekni a écrit :
> Basing on your architecture picture , I think you mean ping VM that
> resides on Essex 2 from server containing Essex 1
>
> I had a similar networking problem and i honestly don't know i fixed
> it ( didn't enable tunneling) , this is what i did
> 1- ifconfig eth0 0.0.0.0
> 2- dhclient br-int ( normally the bridge will take the address of
> eth0)
>
>
> and pinging went back to working fine but i am still testing if there
> are any side effects
> Try it out and txt me !
>
>
> btw , i used your ubuntu 12.04 LTS cloud img and i can't seem to ping
> it but when i choose another image ( the default tty for example) it
> ping as a charm , probably you should pick another image !
>
>
>
>
>
>
> ______________________________________________________________________
> Subject: RE: [Openstack] Instance IP assignment problem
> From: emilien.openstack at gmail.com
> To: skible at hotmail.fr
> CC: openstack at lists.launchpad.net
> Date: Thu, 3 May 2012 11:11:04 +0200
>
> 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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