Open Stack

Hi,

In my test installation of OpenStack, I see that too many tap/qvb/qvo interfaces are still there - but I have too few running instances to use them all.

It looks like:

root at nova02:~# virsh list --all
 Id    Name                           State
----------------------------------------------------
 3     instance-00000002              running
 5     instance-00000004              running
 6     instance-00000005              running
 7     instance-00000006              running
 8     instance-00000007              running

root at nova02:~# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue master br0 state UP
    link/ether 08:9e:01:92:01:86 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::a9e:1ff:fe92:186/64 scope link
       valid_lft forever preferred_lft forever
....
37: qvo21821797-d1: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 9e:8c:63:6a:a0:ce brd ff:ff:ff:ff:ff:ff
    inet6 fe80::9c8c:63ff:fe6a:a0ce/64 scope link
       valid_lft forever preferred_lft forever
38: qvb21821797-d1: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master qbr21821797-d1 state UP qlen 1000
    link/ether 96:51:92:72:d0:1c brd ff:ff:ff:ff:ff:ff
    inet6 fe80::9451:92ff:fe72:d01c/64 scope link
       valid_lft forever preferred_lft forever
39: tap21821797-d1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master qbr21821797-d1 state UNKNOWN qlen 500
    link/ether fe:16:3e:19:bd:01 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::fc16:3eff:fe19:bd01/64 scope link
       valid_lft forever preferred_lft forever

Is it a common problem, that those interfaces are left behind after instance was deleted - and how they should be deleted at first place?

Cheers,
NM