[Lxc-users] Containers are all getting same IP address
Serge Hallyn
serge.hallyn at ubuntu.com
Wed Aug 14 17:12:02 UTC 2013
Quoting Serge Hallyn (serge.hallyn at ubuntu.com):
> Quoting Jay Taylor (jay at jaytaylor.com):
> > After further investigation yesterday, I am not convinced it is an
> > IP-address issue. The affected host machines are unable to start any
> > existing or newly created containers. The incident that triggered the
> > issue was cloning 1 container into 10 new ones, and then launching them all
> > simultaneously. Are there any known concurrency issues with LXC which
> > would explain why executing a lot of clone/start LXC commands at the same
>
> Known, no, but that doesn't mean they're not there :)
>
> However, could you try to reproduce this with non-btrfs?
>
> I'll try to reproduce with btrfs...
In a fresh raring instance I mounted a btrfs disk on /mnt, and did
lxc-create -t ubuntu -B btrfs -P /mnt -n c1
for i in `seq 1 10`; do
lxc-clone -s -p /mnt -o c1 -n x$i
done
for i in `seq 1 10`; do
lxc-start -d -P /mnt -n x$i
done
Then connected to two of the containers with lxc-console,
lxc-console -P /mnt -n x2
lxc-console -P /mnt -n x9
both were up and had unique ip addresses.
Again this was a raring instance with ppa:ubuntu-lxc/daily installed.
-serge
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