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.
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https://bugs.launchpad.net/neutron/+bug/1564575/+subscriptions
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