[Openstack] VM connectivity
Heinonen, Johanna (NSN - FI/Espoo)
johanna.heinonen at nsn.com
Thu Nov 22 06:27:30 UTC 2012
Hi,
I still have the connectivity problem: I cannot ping my VMs even though
nova-list shows that they have IP address and they are active. I use
quantum + ovs. I have tried to take into consideration all possible
advices from this list (and follow installation guides) but so far with
no luck. I can ping the GW and DHCP server in each network. Nova/quantum
logs show no errors. But now I found out in the libvirtd.log the
following:
libvirt version: 0.9.13
2012-11-21 14:55:29.106+0000: 7564: error : virNetSocketReadWire:1003 :
End of file while reading data: Input/output error
2012-11-21 15:26:07.311+0000: 7564: error : virNetSocketReadWire:1003 :
End of file while reading data: Input/output error
2012-11-21 15:53:06.653+0000: 7574: error : virNWFilterDHCPSnoopEnd:2113
: internal error ifname "vnet0" not in key map
2012-11-21 15:53:06.656+0000: 7574: error : virNetDevGetIndex:657 :
Unable to get index for interface vnet0: No such device
...
Could this be the cause of my problems? If yes, do you have any ideas
how to fix this?
BR
Johanna
From: openstack-bounces+johanna.heinonen=nsn.com at lists.launchpad.net
[mailto:openstack-bounces+johanna.heinonen=nsn.com at lists.launchpad.net]
On Behalf Of ext Dan Wendlandt
Sent: Tuesday, November 06, 2012 10:47 AM
To: Salvatore Orlando
Cc: openstack at lists.launchpad.net
Subject: Re: [Openstack] VM connectivity
On Mon, Nov 5, 2012 at 5:54 AM, Salvatore Orlando <sorlando at nicira.com>
wrote:
Johanna, Veera, and Gary
The hybrid VIF driver is necessary for security groups to work (I think
this is why Gary is suggesting to use it).
This is likely to be the source of Johanna's problem of SSHing into VMs.
Just for the sake of pedantry, of which I am a die-hard aficionado, I'd
like to mention that in case you're running Quantum with namespaces, you
won't be able to SSH into them from the host machine unless you execute
the SSH command in the VM's namespace (same applies to ping or any other
operation involving the VM's IP address). For each quantum network,
you'll find a namespace called qdhcp-<net_id>. Hence you can SSH by
doing sudo ip netns exec qdhcp-<net_id> ssh <user>@<vm_ip>.
The latest devstack actually does create a local route to the 'private'
network, so you should be able to SSH directly to VMs via their 10.0.0.x
address. If you create additional networks though, you would have to
explicitly add routes for them.
dan
I do apologise If I'm stating the obvious.
Regards,
Salvatore
On 5 November 2012 14:16, Gary Kotton <gkotton at redhat.com>
wrote:
Please update the linuxnet_vif_driver
Thanks
Gary
On 11/05/2012 02:14 PM, Veera Reddy wrote:
Hi,
My Network Configuration in nova.conf
libvirt_vif_type=ethernet
linuxnet_vif_driver=nova.network.linux_net.LinuxOVSInterfaceDriver
firewall_driver=nova.virt.firewall.NoopFirewallDriver
libvirt_use_virtio_for_bridges=True
Regards,
Veera.
On Mon, Nov 5, 2012 at 5:12 PM, Gary Kotton <gkotton at redhat.com>
wrote:
Hi,
Can you please check that in nova.conf the value of
libvirt_vif_driver is nova.virt.libvirt.vif.LibvirtHybridOVSBridgeDriver
Thanks
Gary
On 11/05/2012 11:15 AM, Heinonen, Johanna (NSN - FI/Espoo)
wrote:
Hi Veera,
I forgot to mention that I have already configured the security
groups for bothe ssh/icmp, but this did not help.
Regards,
Johanna
From: ext Veera Reddy [mailto:veeraready at gmail.com]
Sent: Monday, November 05, 2012 11:02 AM
To: Heinonen, Johanna (NSN - FI/Espoo)
Cc: ext Salvatore Orlando; openstack at lists.launchpad.net
Subject: Re: [Openstack] VM connectivity
Hi Johanna,
Using Security Groups you can ping and SSh to your VM.
http://docs.openstack.org/trunk/openstack-compute/admin/content/enabling
-ping-and-ssh-on-vms.html
Regards,
Veera.
On Mon, Nov 5, 2012 at 2:24 PM, Heinonen, Johanna (NSN -
FI/Espoo) <johanna.heinonen at nsn.com> wrote:
Hi Salvatore,
I am using Quantum with OVS-plugin. My quantum files are
attached.
I have done my configuration by following the instructions by E.
Macchi (includes a tenant internal network and a provider network) and
Quantum admin quide (folsom). I have a single node installation with one
interface eth0 and ubuntu 12.04. The OVS is configured like this:
ovs-vsctl add-br br-int
ovs-vsctl add-br br-ex
ovs-vsctl br-set-external-id br-ex bridge-id br-ex
ovs-vsctl add-port br-ex eth0
I am able to start VMs in both the tenant network and provider
network, they are getting IPs and they become active. The only problem
is that I am not able to connect to them anyhow (no ssh, no ping...)
ovs-vsctl looks like this:
root at localadmin:~# ovs-vsctl show
86f47d37-93b0-4037-a988-1667f85d7c10
Bridge br-tun
Port br-tun
Interface br-tun
type: internal
Port patch-int
Interface patch-int
type: patch
options: {peer=patch-tun}
Bridge br-ex
Port br-ex
Interface br-ex
type: internal
Port "eth0"
Interface "eth0"
Port "qg-89636625-f4"
Interface "qg-89636625-f4"
type: internal
Bridge br-int
Port patch-tun
Interface patch-tun
type: patch
options: {peer=patch-int}
Port "vnet1"
tag: 6
Interface "vnet1"
Port "vnet2"
tag: 1
Interface "vnet2"
Port "tap2fd9694b-51"
tag: 1
Interface "tap2fd9694b-51"
type: internal
Port "vnet0"
tag: 1
Interface "vnet0"
Port br-int
Interface br-int
type: internal
ovs_version: "1.4.0+build0"
Maybe there is something wrong in my configuration? What are the
best troubleshooting tools in this case?
Best regards,
Johanna
From: ext Salvatore Orlando [mailto:sorlando at nicira.com]
Sent: Friday, November 02, 2012 10:53 AM
To: Heinonen, Johanna (NSN - FI/Espoo)
Cc: ext Daniel Oliveira; openstack at lists.launchpad.net
Subject: Re: [Openstack] VM connectivity
Hi Johanna,
are you running Openstack with Quantum or nova-network? In the
former case, which plugin are you using?
If you are using nova-network, which network manager are you
using?
Salvatore
On 2 November 2012 06:32, Heinonen, Johanna (NSN - FI/Espoo)
<johanna.heinonen at nsn.com> wrote:
Hi Daniel,
Did you solve your problem? If yes, what was the solution? I am
interested because I have similar issues in my setup.
BR
Johanna
From:
openstack-bounces+johanna.heinonen=nsn.com at lists.launchpad.net
[mailto:openstack-bounces+johanna.heinonen
<mailto:openstack-bounces%2Bjohanna.heinonen>
=nsn.com at lists.launchpad.net] On Behalf Of ext Daniel Oliveira
Sent: Thursday, October 18, 2012 3:17 PM
To: openstack at lists.launchpad.net
Subject: Re: [Openstack] VM connectivity
So, can anyone help me?
2012/10/16 Daniel Oliveira <dvalbrand at gmail.com>
When viewing the console-log of a VM, I noticed the following:
"
Starting network...
udhcpc (v1.18.5) started
Sending discover...
Sending discover...
Sending discover...
No lease, failing
WARN: /etc/rc3.d/S40-network failed
"
2012/10/16 Daniel Oliveira <dvalbrand at gmail.com>
Hello. I installed OpenStack via devStack, and I've noticed I am
unable to SSH, or even ping, to any VM I launch. I've already added both
rules to the default security group (port 22 for SSH, and ICMP rule). I
hope someone can help me, thanks in advance.
P.S.:
-I am not very experienced with all of this, so if you ask me
for the output of some command or log, please specify the file
path/command;
-I had a thread with a similar question on this list, but I
deleted it from my email unintentionally.
--
My best regards,
Daniel Oliveira.
--
My best regards,
Daniel Oliveira.
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My best regards,
Daniel Oliveira.
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Regards,
VeeraReddy.B
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~~~~~~~~~~~~~~~~~~~~~~~~~~~
Dan Wendlandt
Nicira, Inc: www.nicira.com
twitter: danwendlandt
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