Re: [libvirt] LXC: autostart feature does set all interfaces to state up.
On 07/05/2013 04:45 AM, Richard Weinberger wrote:
Hi,
Am 03.07.2013 12:04, schrieb Gao feng:
> Hi,
> On 07/01/2013 03:45 PM, Richard Weinberger wrote:
>> Hi!
>>
>> If you have multiple LXC containers with networking and the autostart feature
enabled libvirtd fails to
>> up some veth interfaces on the host side.
>>
>> Most of the time only the first veth device is in state up, all others are down.
>>
>> Reproducing is easy.
>> 1. Define a few containers (5 in my case)
>> 2. Run "virsh autostart ..." on each one.
>> 3. stop/start libvirtd
>>
>> You'll observe that all containers are running, but "ip a" will
report on the host
>> side that not all veth devices are up and are not usable within the containers.
>>
>> This is not userns related, just retested with libvirt of today.
>
> I can not reproduce this problem on my test bed...
Strange.
> maybe you should wait some seconds for the starting of these containers.
Please see the attached shell script. Using it I'm able to trigger the issue on all
of
my test machines.
run.sh creates six very minimal containers and enables autostart. Then it kills and
restarts libvirtd.
After the script is done you'll see that only one or two veth devices are up.
On the over hand, if I start them manually using a command like this one:
for cfg in a b c d e f ; do /opt/libvirt/bin/virsh -c lxc:/// start test-$cfg ; done
All veths are always up.
I still can not reproduce even use your script.
[root@Donkey-I5 Desktop]# ./run.sh
Domain test-a defined from container_a.conf
Domain test-a marked as autostarted
Domain test-b defined from container_b.conf
Domain test-b marked as autostarted
Domain test-c defined from container_c.conf
Domain test-c marked as autostarted
Domain test-d defined from container_d.conf
Domain test-d marked as autostarted
Domain test-e defined from container_e.conf
Domain test-e marked as autostarted
Domain test-f defined from container_f.conf
Domain test-f marked as autostarted
2013-07-05 01:26:47.155+0000: 27163: info : libvirt version: 1.1.0
2013-07-05 01:26:47.155+0000: 27163: debug : virLogParseOutputs:1334 :
outputs=1:file:/home/gaofeng/libvirtd.log
waiting a bit....
167: veth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master
virbr0 state UP qlen 1000
169: veth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master
virbr0 state UP qlen 1000
171: veth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master
virbr0 state UP qlen 1000
173: veth3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master
virbr0 state UP qlen 1000
175: veth4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master
virbr0 state UP qlen 1000
177: veth5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master
virbr0 state UP qlen 1000
Can you post your libvirt debug log?
Thanks