yahoo-eng-team team mailing list archive

[Stephen Ma <stephen.ma@xxxxxx>]

Public bug reported:

With DVR, the qrouter- and snat- namespaces are deleted after the last
VM using the router is deleted. But the namespaces remain on the node
afterwards.

How the problem is reproduced;

1. Create a network, subnet, and router:

   - neutron net-create mynet
   - neutron subnet-create --name sb-mynet mynet 10.1.2.0/24
   - neutron router-create myrouter
   - neutron router-interface-add myrouter sb-mynet
   - neutron router-gateway-set myrouter public

2. Create a VM:

   - nova boot --flavor 1 --key-name <key> --image <cirros-image> --nic
net-id=<mynet-uuid> vm1

   After the VM comes boots up, check the VM is pingable

3. Delete the VM.

The router's namespaces remain on the node.  They should have been
deleted.

** Affects: neutron
     Importance: Undecided
     Assignee: Stephen Ma (stephen-ma)
         Status: New


** Tags: l3-dvr-backlog

** Tags added: l3-dvr-backlog

** Changed in: neutron
     Assignee: (unassigned) => Stephen Ma (stephen-ma)

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https://bugs.launchpad.net/bugs/1353165

Title:
  Namespaces not removed when the last VM using a DVR is deleted

Status in OpenStack Neutron (virtual network service):
  New

Bug description:
  With DVR, the qrouter- and snat- namespaces are deleted after the last
  VM using the router is deleted. But the namespaces remain on the node
  afterwards.

  How the problem is reproduced;

  1. Create a network, subnet, and router:

     - neutron net-create mynet
     - neutron subnet-create --name sb-mynet mynet 10.1.2.0/24
     - neutron router-create myrouter
     - neutron router-interface-add myrouter sb-mynet
     - neutron router-gateway-set myrouter public

  2. Create a VM:

     - nova boot --flavor 1 --key-name <key> --image <cirros-image>
  --nic net-id=<mynet-uuid> vm1

     After the VM comes boots up, check the VM is pingable

  3. Delete the VM.

  The router's namespaces remain on the node.  They should have been
  deleted.

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