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On 02/11/2013 07:26 PM, Greg Chavez wrote:
<blockquote
cite="mid:CAMTcKhYwOkHZBz6O1H_JcnJt7rzpdO+avQETp6Sg39EV1jg8JQ@mail.gmail.com"
type="cite">
<div dir="ltr">Solution:
<div><br>
</div>
<div>
<div>[root@kvm-cs-sn-10i nova]# modprobe -r brcompat</div>
<div>[root@kvm-cs-sn-10i nova]# modprobe bridge</div>
<div>[root@kvm-cs-sn-10i nova]# brctl show</div>
<div>bridge name<span class="" style="white-space:pre"> </span>bridge
id<span class="" style="white-space:pre"> </span>STP
enabled<span class="" style="white-space:pre"> </span>interfaces</div>
</div>
<div><br>
</div>
<div style="">Still can't boot a VM... looking into the reasons
now.</div>
</div>
</blockquote>
<br>
Could this be related to SELinux. Can you please look at the
nova-compute logfile - /var/log/nova/compute.log.<br>
Thanks<br>
Gary<br>
<br>
<blockquote
cite="mid:CAMTcKhYwOkHZBz6O1H_JcnJt7rzpdO+avQETp6Sg39EV1jg8JQ@mail.gmail.com"
type="cite">
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Mon, Feb 11, 2013 at 11:33 AM, Greg
Chavez <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:greg.chavez@gmail.com" target="_blank">greg.chavez@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div><br>
</div>
<div>Running latest EPEL Folsom packages on RHEL 6.3.
Three nodes right now, one controller, one network
node, one compute node. The network node has three
NICs, one for external net, one for management net, one
for VM network traffic. It has been a miserable journey
so far.</div>
<div><br>
</div>
<div>The lastest calamity began with a failed spawn of the
Cirros test image. I booted it like this:</div>
<div><br>
</div>
<div># nova --os-username demo --os-password demo
--os-tenant-name demoProject boot --image
aefa581f-47b0-4d46-8dbc-1a1f7f02dfa0 --flavor 2 --nic
net-id=3de1e780-07d1-42af-89cc-0feaf1ece6e9 server-01<br>
</div>
<div><br>
</div>
This succeeded but went directly into an ERROR state. The
compute node's /var/log/nova/compute.log showed this:
<div><br>
</div>
<div>
<div>ProcessExecutionError: Unexpected error while
running command.</div>
<div>Command: sudo nova-rootwrap /etc/nova/rootwrap.conf
brctl addbr qbr2218b8c4-7d</div>
<div>Exit code: 1</div>
<div>Stdout: ''</div>
<div>Stderr: 'add bridge failed: Package not
installed\n'</div>
<div><br>
</div>
</div>
<div>Hrm. So then I ran this:</div>
<div><br>
</div>
<div>
<div># brctl show</div>
<div>bridge name<span style="white-space:pre-wrap"> </span>bridge
id<span style="white-space:pre-wrap"> </span>STP
enabled<span style="white-space:pre-wrap"> </span>interfaces</div>
<div>br-eth1<span style="white-space:pre-wrap"> </span>/sys/class/net/br-eth1/bridge:
No such file or directory</div>
<div>/sys/class/net/br-eth1/bridge: No such file or
directory</div>
<div>/sys/class/net/br-eth1/bridge: No such file or
directory</div>
<div>/sys/class/net/br-eth1/bridge: No such file or
directory</div>
<div>/sys/class/net/br-eth1/bridge: No such file or
directory</div>
<div>/sys/class/net/br-eth1/bridge: No such file or
directory</div>
<div>/sys/class/net/br-eth1/bridge: No such file or
directory</div>
<div>/sys/class/net/br-eth1/bridge: No such file or
directory</div>
<div>/sys/class/net/br-eth1/bridge: No such file or
directory</div>
<div>/sys/class/net/br-eth1/bridge: No such file or
directory</div>
<div>/sys/class/net/br-eth1/bridge: No such file or
directory</div>
<div>/sys/class/net/br-eth1/bridge: No such file or
directory</div>
<div>0000.bc305befedd1<span style="white-space:pre-wrap">
</span>no<span style="white-space:pre-wrap"> </span></div>
<div>br-int<span style="white-space:pre-wrap"> </span>/sys/class/net/br-int/bridge:
No such file or directory</div>
<div>/sys/class/net/br-int/bridge: No such file or
directory</div>
<div>/sys/class/net/br-int/bridge: No such file or
directory</div>
<div>/sys/class/net/br-int/bridge: No such file or
directory</div>
<div>/sys/class/net/br-int/bridge: No such file or
directory</div>
<div>/sys/class/net/br-int/bridge: No such file or
directory</div>
<div>/sys/class/net/br-int/bridge: No such file or
directory</div>
<div>/sys/class/net/br-int/bridge: No such file or
directory</div>
<div>/sys/class/net/br-int/bridge: No such file or
directory</div>
<div>/sys/class/net/br-int/bridge: No such file or
directory</div>
<div>/sys/class/net/br-int/bridge: No such file or
directory</div>
<div>/sys/class/net/br-int/bridge: No such file or
directory</div>
<div>0000.7e1636f42c4b<span style="white-space:pre-wrap">
</span>no</div>
<div><br>
</div>
<div>GAH! What!!! First of all, bridge capability is
set by default in the RHEL 6.3 kernel. Secondly, nova
knows that it's supposed to be using openvswitch. The
ProcessExecutionError's trace showed that the
offending code came
from /usr/lib/python2.6/site-packages/nova/virt/libvirt/vif.py
line 216 which has this comment:</div>
<div><br>
</div>
<div>
<div> def plug(self, instance, vif):</div>
<div> """Plug using hybrid strategy</div>
<div><br>
</div>
<div> Create a per-VIF linux bridge, then link
that bridge to the OVS</div>
<div> integration bridge via a veth device,
setting up the other end</div>
<div> of the veth device just like a normal OVS
port. Then boot the</div>
<div> VIF on the linux bridge using standard
libvirt mechanisms</div>
<div> """</div>
<div><br>
</div>
<div>Thirdly, ovs-vsctrl is happy:</div>
<div><br>
</div>
<div>
<div># ovs-vsctl show</div>
<div>44435595-8cc8-469c-ace4-ded76a7b864d</div>
<div> Bridge "br-eth1"</div>
<div> Port "br-eth1"</div>
<div> Interface "br-eth1"</div>
<div> type: internal</div>
<div> Port "phy-br-eth1"</div>
<div> Interface "phy-br-eth1"</div>
<div> Port "eth1"</div>
<div> Interface "eth1"</div>
<div> Bridge br-int</div>
<div> Port "int-br-eth1"</div>
<div> Interface "int-br-eth1"</div>
<div>
Port br-int</div>
<div> Interface br-int</div>
<div> type: internal</div>
<div> ovs_version: "1.7.3"</div>
</div>
<div><br>
</div>
<div>Final note, my network node fails the same way,
but the controller does not.</div>
<div><br>
</div>
<div>I hope so much that somebody knows what is going
on here. This is very terrible for me as I am
struggling to achieve minimal functionality.
Thanks.</div>
</div>
</div>
<span class="HOEnZb"><font color="#888888">
<div>
<div><br>
</div>
-- <br>
\*..+.-<br>
--Greg Chavez<br>
+//..;};
</div>
</font></span></div>
</blockquote>
</div>
<br>
<br clear="all">
<div><br>
</div>
-- <br>
\*..+.-<br>
--Greg Chavez<br>
+//..;};
</div>
<br>
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