DVR: router namespace can't be deleted if bulk delete VMs

[shihanzhang]

With DVR router, if we bulk delete VMs on from a compute node, the router namespace will remain(not always happen, but for most part)
reproduce steps:
1. create a DVR router, add a subnet to this router
2. create two VMs on one compute node, note that these are only these two VMs on this compute
3. bulk delete these two VMs through Nova API

the router namespace will remain for the most part.

[Swaminathan Vasudevan (swaminathan-vasudevan)]

Need to triage this bug.

[Swaminathan Vasudevan (swaminathan-vasudevan)]

I tried reproducing this issue in the Master branch . Here are the steps that I followed.

--+--------+
stack@ubuntu-ctlr:~/devstack$ nova boot --flavor 42 --image cirros-0.3.4-x86_64-uec --nic net-id=683e91b2-64aa-46a4-8810-a5fe46fa1522 --availability-zone=nova:ubuntu-new-compute mycirros1
+--------------------------------------+----------------------------------------------------------------+
| Property | Value |
+--------------------------------------+----------------------------------------------------------------+
| OS-DCF:diskConfig | MANUAL |
| OS-EXT-AZ:availability_zone | nova |
| OS-EXT-SRV-ATTR:host | - |
| OS-EXT-SRV-ATTR:hostname | mycirros1 |
| OS-EXT-SRV-ATTR:hypervisor_hostname | - |
| OS-EXT-SRV-ATTR:instance_name | instance-00000001 |
| OS-EXT-SRV-ATTR:kernel_id | e51fa786-4586-4d64-8f53-0dc8b53493c9 |
| OS-EXT-SRV-ATTR:launch_index | 0 |
| OS-EXT-SRV-ATTR:ramdisk_id | 44a667bf-894f-417b-8a0c-b8a6dc8b7a45 |
| OS-EXT-SRV-ATTR:reservation_id | r-auugjv8r |
| OS-EXT-SRV-ATTR:root_device_name | - |
| OS-EXT-SRV-ATTR:user_data | - |
| OS-EXT-STS:power_state | 0 |
| OS-EXT-STS:task_state | scheduling |
| OS-EXT-STS:vm_state | building |
| OS-SRV-USG:launched_at | - |
| OS-SRV-USG:terminated_at | - |
| accessIPv4 | |
| accessIPv6 | |
| adminPass | SwbAufd5APR4 |
| config_drive | |
| created | 2015-11-11T21:23:04Z |
| flavor | m1.nano (42) |
| hostId | |
| id | c2e1e...

[Swaminathan Vasudevan (swaminathan-vasudevan)]

I am not seeing it happen in the Master branch.

[Armando Migliaccio (armando-migliaccio)]

This bug is > 240 days without activity. We are unsetting assignee and milestone and setting status to Incomplete in order to allow its expiry in 60 days.

If the bug is still valid, then update the bug status.

[Launchpad Janitor (janitor)]

[Expired for neutron because there has been no activity for 60 days.]