[Openstack-operators] Network Configuration - Centos 6.2
Hugo R Hernandez
hdezmora at gmail.com
Wed Apr 17 17:53:16 UTC 2013
Hello Openstack operators,
I'm experiencing a similar problem to what is posted on Fri Jun 1 18:07:26
2012 about "Network Configuration - Centos 6.2" on this mailing list (
http://lists.openstack.org/pipermail/openstack-operators/2012-June/001740.html).
I have spent now almost two weeks to have this working without any luck.
Essentially, I have a controller node plus a compute node for this project
and I expect to include a second compute node. All of these servers have
four network interfaces so initially I would like to use:
eth0 for 'public' access (10.12.10.0/23)
eth3 for private access (192.168.10.192/26)
I have been working on different options by using eth3 for bridge (br3 or
br100 - not sure if I'm forced to use br100 but anyways I have used both of
them with and without assigning IP), but in any case, I'm not able to have
this working....
Actually, things are worse as I had at least a service listening between
the two servers, controller and compute node, but not anymore (State XXX):
*[root at euler ~]# nova-manage service list*
Binary Host Zone
Status State Updated_At
nova-conductor euler.example.com internal
enabled :-) 2013-04-17 16:10:24
nova-cert euler.example.com internal
enabled :-) 2013-04-17 16:10:25
nova-scheduler euler.example.com internal
enabled :-) 2013-04-17 16:10:25
*nova-compute fibonacci.example.com nova
enabled XXX 2013-04-17 15:30:09*
Installed packages are:
*[root at euler ~]# rpm -qa | grep openstack*
openstack-utils-2013.1-6.el6.noarch
openstack-glance-2013.1-1.el6.noarch
openstack-nova-api-2013.1-2.el6.noarch
openstack-nova-console-2013.1-2.el6.noarch
openstack-keystone-2013.1-1.el6.noarch
openstack-nova-scheduler-2013.1-2.el6.noarch
openstack-nova-conductor-2013.1-2.el6.noarch
openstack-nova-2013.1-2.el6.noarch
openstack-nova-common-2013.1-2.el6.noarch
openstack-nova-network-2013.1-2.el6.noarch
openstack-nova-cert-2013.1-2.el6.noarch
openstack-nova-objectstore-2013.1-2.el6.noarch
openstack-nova-compute-2013.1-2.el6.noarch
When following default documentation I got this error when trying to create
a network:
*[root at euler ~]# nova network-create private --fixed-range-v4=
192.168.10.192/26 --bridge-interface=br3*
ERROR: The server has either erred or is incapable of performing the
requested operation. (HTTP 500) (Request-ID:
req-7b4227e8-ebd4-444f-84de-4bcc0f42b0dd)
For details, here is my nova.conf file as explained on documentation for
RHEL-based distros version 6 (Openstack Grizzly):
*[root at euler ~]# cat /etc/nova/nova.conf *
[DEFAULT]
# LOGS/STATE
verbose = True
logdir = /var/log/nova
state_path = /var/lib/nova
lock_path = /var/lib/nova/tmp
rootwrap_config = /etc/nova/rootwrap.conf
# SCHEDULER
compute_scheduler_driver = nova.scheduler.filter_scheduler.FilterScheduler
# VOLUMES
volume_driver = nova.volume.driver.ISCSIDriver
volume_group = nova-volumes
volume_name_template = volume-%s
iscsi_helper = tgtadm
volumes_dir = /etc/nova/volumes
# DATABASE
sql_connection = mysql://nova:mySecretPass@10.12.10.35/nova
# COMPUTE
libvirt_type = kvm
compute_driver = libvirt.LibvirtDriver
instance_name_template = instance-%08x
api_paste_config = /etc/nova/api-paste.ini
# COMPUTE/APIS: if you have separate configs for separate services
# this flag is required for both nova-api and nova-compute
allow_resize_to_same_host = True
# APIS
osapi_compute_extension =
nova.api.openstack.compute.contrib.standard_extensions
ec2_dmz_host =
10.12.10.35
s3_host =
10.12.10.35
# QPID
qpid_hostname = 10.12.10.35
# GLANCE
image_service = nova.image.glance.GlanceImageService
glance_api_servers = 10.12.10.35:9292
# NETWORK
network_manager = nova.network.manager.FlatDHCPManager
force_dhcp_release = True
dhcpbridge_flagfile = /etc/nova/nova.conf
dhcpbridge = /usr/bin/nova-dhcpbridge
firewall_driver = nova.virt.libvirt.firewall.IptablesFirewallDriver
# Change my_ip to match each host
my_ip = 10.12.10.35
public_interface = eth3
flat_network_bridge = br3
flat_interface = eth3
fixed_range = 192.168.10.192/26
# NOVNC CONSOLE
novncproxy_base_url = http://10.12.10.35:6080/vnc_auto.html
# Change vncserver_proxyclient_address and vncserver_listen to match each
compute host
vncserver_proxyclient_address = 10.12.10.35
vncserver_listen = 10.12.10.35
# GENERAL
injected_network_template = /usr/share/nova/interfaces.template
libvirt_nonblocking = True
libvirt_inject_partition = -1
rpc_backend = nova.openstack.common.rpc.impl_qpid
# AUTHENTICATION
auth_strategy = keystone
[keystone_authtoken]
auth_host = 127.0.0.1
auth_port = 35357
auth_protocol = http
admin_tenant_name = service
admin_user = nova
admin_password = mySecretPass
signing_dirname = /tmp/keystone-signing-nova
When I check status for the nova-network service I get this on both
controller and compute node:
*[root at euler ~]# /etc/init.d/openstack-nova-network status*
openstack-nova-network dead but pid file exists
And, on the syslogs I have these entries:
2013-04-17 11:54:01.447 4026 TRACE nova Traceback (most recent call
last):
2013-04-17 11:54:01.447 4026 TRACE nova File "/usr/bin/nova-network",
line 54, in <module>
2013-04-17 11:54:01.447 4026 TRACE nova
service.wait()
2013-04-17 11:54:01.447 4026 TRACE nova File
"/usr/lib/python2.6/site-packages/nova/service.py", line 689, in
wait
2013-04-17 11:54:01.447 4026 TRACE nova
_launcher.wait()
2013-04-17 11:54:01.447 4026 TRACE nova File
"/usr/lib/python2.6/site-packages/nova/service.py", line 209, in
wait
2013-04-17 11:54:01.447 4026 TRACE nova super(ServiceLauncher,
self).wait()
2013-04-17 11:54:01.447 4026 TRACE nova File
"/usr/lib/python2.6/site-packages/nova/service.py", line 179, in
wait
2013-04-17 11:54:01.447 4026 TRACE nova
service.wait()
2013-04-17 11:54:01.447 4026 TRACE nova File
"/usr/lib/python2.6/site-packages/eventlet/greenthread.py", line 166, in
wait
2013-04-17 11:54:01.447 4026 TRACE nova return
self._exit_event.wait()
2013-04-17 11:54:01.447 4026 TRACE nova File
"/usr/lib/python2.6/site-packages/eventlet/event.py", line 116, in
wait
2013-04-17 11:54:01.447 4026 TRACE nova return
hubs.get_hub().switch()
2013-04-17 11:54:01.447 4026 TRACE nova File
"/usr/lib/python2.6/site-packages/eventlet/hubs/hub.py", line 177, in switch
2013-04-17 11:54:01.447 4026 TRACE nova return self.greenlet.switch()
2013-04-17 11:54:01.447 4026 TRACE nova File
"/usr/lib/python2.6/site-packages/eventlet/greenthread.py", line 192, in
main
2013-04-17 11:54:01.447 4026 TRACE nova result = function(*args,
**kwargs)
2013-04-17 11:54:01.447 4026 TRACE nova File
"/usr/lib/python2.6/site-packages/nova/service.py", line 147, in run_server
2013-04-17 11:54:01.447 4026 TRACE nova server.start()
2013-04-17 11:54:01.447 4026 TRACE nova File
"/usr/lib/python2.6/site-packages/nova/service.py", line 429, in start
2013-04-17 11:54:01.447 4026 TRACE nova self.manager.init_host()
2013-04-17 11:54:01.447 4026 TRACE nova File
"/usr/lib/python2.6/site-packages/nova/network/manager.py", line 1601, in
init_host
2013-04-17 11:54:01.447 4026 TRACE nova
self.l3driver.initialize(fixed_range=CONF.fixed_range)
2013-04-17 11:54:01.447 4026 TRACE nova File
"/usr/lib/python2.6/site-packages/nova/network/l3.py", line 88, in
initialize
2013-04-17 11:54:01.447 4026 TRACE nova linux_net.init_host()
2013-04-17 11:54:01.447 4026 TRACE nova File
"/usr/lib/python2.6/site-packages/nova/network/linux_net.py", line 642, in
init_host
2013-04-17 11:54:01.447 4026 TRACE nova add_snat_rule(ip_range)
2013-04-17 11:54:01.447 4026 TRACE nova File
"/usr/lib/python2.6/site-packages/nova/network/linux_net.py", line 632, in
add_snat_rule
2013-04-17 11:54:01.447 4026 TRACE nova iptables_manager.apply()
2013-04-17 11:54:01.447 4026 TRACE nova File
"/usr/lib/python2.6/site-packages/nova/network/linux_net.py", line 393, in
apply
2013-04-17 11:54:01.447 4026 TRACE nova self._apply()
2013-04-17 11:54:01.447 4026 TRACE nova File
"/usr/lib/python2.6/site-packages/nova/openstack/common/lockutils.py", line
228, in inner
2013-04-17 11:54:01.447 4026 TRACE nova retval = f(*args, **kwargs)
2013-04-17 11:54:01.447 4026 TRACE nova File
"/usr/lib/python2.6/site-packages/nova/network/linux_net.py", line 411, in
_apply
2013-04-17 11:54:01.447 4026 TRACE nova attempts=5)
2013-04-17 11:54:01.447 4026 TRACE nova File
"/usr/lib/python2.6/site-packages/nova/network/linux_net.py", line 1146, in
_execute
2013-04-17 11:54:01.447 4026 TRACE nova return utils.execute(*cmd,
**kwargs)
2013-04-17 11:54:01.447 4026 TRACE nova File
"/usr/lib/python2.6/site-packages/nova/utils.py", line 239, in execute
2013-04-17 11:54:01.447 4026 TRACE nova cmd=' '.join(cmd))
2013-04-17 11:54:01.447 4026 TRACE nova ProcessExecutionError: Unexpected
error while running command.
2013-04-17 11:54:01.447 4026 TRACE nova Command: sudo nova-rootwrap
/etc/nova/rootwrap.conf iptables-save -c
2013-04-17 11:54:01.447 4026 TRACE nova Exit code: 1
2013-04-17 11:54:01.447 4026 TRACE nova Stdout: ''
2013-04-17 11:54:01.447 4026 TRACE nova Stderr: 'sudo: sorry, you must have
a tty to run sudo\n'
I'm not sure about the last lines as you can see I'm running everything as
root. Anyways, I have disabled iptables with same results. Also, I have
disabled selinux by default. At this point, documentation is not that
helpful but anyways, I have been trying to use the following:
http://docs.openstack.org/trunk/openstack-compute/install/yum/content/index.html
http://fedorapeople.org/~russellb/openstack-lab-rhsummit-2012/index.html
http://docs.openstack.org/trunk/openstack-compute/admin/content/index.html
I have a deadline to abandon this project if there is no progress *but*
actually, I don't want to do that so I will greatly appreciate any
help/hint you can provide to me.
Thanks in advance,
-Hugo
--
*Hugo R Hernández-Mora*
*
*"Se seus esforços foram vistos com indeferença, não desanime que o sol
faze um espectacolo maravilhoso todas as manhãs enquanto a maioria das
pessoas ainda estão dormindo"
- Anónimo brasileiro
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