Public bug reported:
DVR router namespaces are deleted when we manually move the router from
on dvr_snat node to another dvr_snat node.
It should be only deleting the snat_namespace and not the
router_namespace, since there are 'dhcp' ports and 'vm' ports still
serviced by DVR.
How to reproduce:
Configure a two node setup:
1. I have one node with Controller, compute and networking node with dhcp
running in dvr_snat mode.
2. I have another node with compute and networking node without dhcp running
in dvr_snat mode.
3. Now create network
4. Create a subnet
5. Create a router and attach the subnet to the router.
6. Also set a gateway to the router.
7. Now you should see that there are three namespaces in the first node.
a. snat_namespace
b. qrouter_namespace
c. dhcp_namespace
8. Now create a VM on the first node.
9. Now try to remove the router from the first agent and assign it to the
second agent in the second node.
neutron l3-agent-router-remove agent-id router-id
This currently removes both the snat_namespace and the router_namespace
when there is still a valid vm and dhcp port.
Suspect that checking for available DVR service ports might be causing an issue
here.
Will try to find out the root cause.
** Affects: neutron
Importance: Undecided
Status: New
** Tags: l3-dvr-backlog mitaka-rc-potential
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https://bugs.launchpad.net/bugs/1564575
Title:
DVR router namespaces are deleted when we manually move a DVR router
from one SNAT_node to another SNAT_node even though there are active
VMs in the node
Status in neutron:
New
Bug description:
DVR router namespaces are deleted when we manually move the router
from on dvr_snat node to another dvr_snat node.
It should be only deleting the snat_namespace and not the
router_namespace, since there are 'dhcp' ports and 'vm' ports still
serviced by DVR.
How to reproduce:
Configure a two node setup:
1. I have one node with Controller, compute and networking node with dhcp
running in dvr_snat mode.
2. I have another node with compute and networking node without dhcp running
in dvr_snat mode.
3. Now create network
4. Create a subnet
5. Create a router and attach the subnet to the router.
6. Also set a gateway to the router.
7. Now you should see that there are three namespaces in the first node.
a. snat_namespace
b. qrouter_namespace
c. dhcp_namespace
8. Now create a VM on the first node.
9. Now try to remove the router from the first agent and assign it to the
second agent in the second node.
neutron l3-agent-router-remove agent-id router-id
This currently removes both the snat_namespace and the
router_namespace when there is still a valid vm and dhcp port.
Suspect that checking for available DVR service ports might be causing an
issue here.
Will try to find out the root cause.
To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/1564575/+subscriptions
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