openstack team mailing list archive

[Javier Alvarez <javier.alvarez@xxxxxx>]

If anyone is interested, the problem was this bug:

https://lists.launchpad.net/openstack/msg14988.html

Javier

On 19/04/13 12:41, Javier Alvarez wrote:
> Looking at /var/log/syslog I have found some more info:
>
> Apr 19 12:36:26  dnsmasq-dhcp[2204]: read 
> /var/lib/nova/networks/nova-br100.conf
> Apr 19 12:36:34  kernel: [176191.796184] device vnet0 entered 
> promiscuous mode
> Apr 19 12:36:34  kernel: [176191.874774] br100: port 2(vnet0) entering 
> forwarding state
> Apr 19 12:36:34  kernel: [176191.874796] br100: port 2(vnet0) entering 
> forwarding state
> Apr 19 12:36:36  kernel: [176194.057668] kvm: 11182: cpu0 unhandled 
> rdmsr: 0xc0010001
> Apr 19 12:36:37  ntpd[3497]: Listen normally on 36 vnet0 
> fe80::fc16:3eff:fe24:1cab UDP 123
> Apr 19 12:36:37  ntpd[3497]: peers refreshed
> Apr 19 12:36:38  dnsmasq-dhcp[2204]: DHCPDISCOVER(br100) 
> fa:16:3e:24:1c:ab no address available
> Apr 19 12:36:41  dnsmasq-dhcp[2204]: DHCPDISCOVER(br100) 
> fa:16:3e:24:1c:ab no address available
> Apr 19 12:36:44  dnsmasq-dhcp[2204]: DHCPDISCOVER(br100) 
> fa:16:3e:24:1c:ab no address available
>
> The thing is that /var/lib/nova/networks/nova-br100.conf is empty. Can 
> that be the cause dnsmasq-dhcp doesn't have available addresses?
>
> Thanks,
>
> Javier
>
> On 18/04/13 17:38, Javier Alvarez wrote:
> > Hello all,
> >
> > Here it is my situation:
> >
> > I am trying to install Essex on a small cluster (3 nodes) running 
> > Debian. There is a front-end node that has a public IP and then there 
> > are 2 compute nodes in a LAN. I cannot run nova-network on the 
> > front-end node because it is overwritting the iptables there and some 
> > other services start to misbehave, so I am trying a multi-host 
> > solution with nova-network running in each compute node.
> >
> > The nova.conf I'm using in both compute nodes is the following:
> >
> > [DEFAULT]
> > logdir=/var/log/nova
> > state_path=/var/lib/nova
> > lock_path=/var/lock/nova
> > root_helper=sudo nova-rootwrap
> > auth_strategy=keystone
> > iscsi_helper=tgtadm
> > sql_connection=mysql://nova-common:password@172.16.8.1/nova
> > connection_type=libvirt
> > libvirt_type=kvm
> > my_ip=172.16.8.22
> > rabbit_host=172.16.8.1
> > glance_host=172.16.8.1
> > image_service=nova.image.glance.GlanceImageService
> > network_manager=nova.network.manager.FlatDHCPManager
> > fixed_range=192.168.100.0/24
> > flat_interface=eth1
> > public_interface=eth0
> > flat_network_bridge=br100
> > flat_network_dhcp_start=192.168.100.2
> > network_size=256
> > dhcpbridge_flagfile=/etc/nova/nova.conf
> > dhcpbridge=/usr/bin/nova-dhcpbridge
> > multi_host=True
> > send_arp_for_ha=true
> >
> > I have created a network with:
> >
> > nova-manage network create private --fixed_range_v4=192.168.100.0/24 
> > --multi_host=T --bridge_interface=br100
> >
> > And I have set up eth1 with no IP and running in promisc mode. When I 
> > launch an instance, ifconfig outputs the following:
> >
> >
> > br100     Link encap:Ethernet  HWaddr 68:b5:99:c2:7b:a7
> >           inet addr:192.168.100.3  Bcast:192.168.100.255 
> > Mask:255.255.255.0
> >           inet6 addr: fe80::7033:eeff:fe29:81ae/64 Scope:Link
> >           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
> >           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> >           TX packets:1 errors:0 dropped:0 overruns:0 carrier:0
> >           collisions:0 txqueuelen:0
> >           RX bytes:0 (0.0 B)  TX bytes:90 (90.0 B)
> >
> > eth0      Link encap:Ethernet  HWaddr 68:b5:99:c2:7b:a6
> >           inet addr:172.16.8.22  Bcast:172.16.8.255 Mask:255.255.255.0
> >           inet6 addr: fe80::6ab5:99ff:fec2:7ba6/64 Scope:Link
> >           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
> >           RX packets:4432580 errors:0 dropped:0 overruns:0 frame:0
> >           TX packets:4484811 errors:0 dropped:0 overruns:0 carrier:0
> >           collisions:0 txqueuelen:1000
> >           RX bytes:457880509 (436.6 MiB)  TX bytes:398588034 (380.1 MiB)
> >           Memory:fe860000-fe880000
> >
> > eth1      Link encap:Ethernet  HWaddr 68:b5:99:c2:7b:a7
> >           UP BROADCAST PROMISC MULTICAST  MTU:1500  Metric:1
> >           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> >           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> >           collisions:0 txqueuelen:1000
> >           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
> >           Memory:fe8e0000-fe900000
> >
> > lo        Link encap:Local Loopback
> >           inet addr:127.0.0.1  Mask:255.0.0.0
> >           inet6 addr: ::1/128 Scope:Host
> >           UP LOOPBACK RUNNING  MTU:16436  Metric:1
> >           RX packets:52577 errors:0 dropped:0 overruns:0 frame:0
> >           TX packets:52577 errors:0 dropped:0 overruns:0 carrier:0
> >           collisions:0 txqueuelen:0
> >           RX bytes:2737820 (2.6 MiB)  TX bytes:2737820 (2.6 MiB)
> >
> > vnet0     Link encap:Ethernet  HWaddr fe:16:3e:2d:40:3b
> >           inet6 addr: fe80::fc16:3eff:fe2d:403b/64 Scope:Link
> >           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
> >           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> >           TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
> >           collisions:0 txqueuelen:500
> >           RX bytes:0 (0.0 B)  TX bytes:370 (370.0 B)
> >
> > And brctl show:
> >
> > bridge name     bridge id               STP enabled interfaces
> > br100           8000.68b599c27ba7       no              eth1
> > vnet0
> >
> > Which looks fine to me. However, the VM log shows that it is unable 
> > to get an IP through DHCP (despite dnsmasq is running):
> >
> > Starting network...
> > udhcpc (v1.18.5) started
> > Sending discover...
> > Sending discover...
> > Sending discover...
> > No lease, failing
> > WARN: /etc/rc3.d/S40-network failed
> >
> > What am I doing wrong? Any help would be very much appreciated.
> >
> > Thanks in advance,
> >
> > Javier


--
Javier Álvarez Cid-Fuentes
Grid Computing and Clusters Group
Barcelona Supercomputing Center (BSC-CNS)
Tel. (+34) 93 413 72 46



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