This patch enable redundant virtual routers.
1. To enable this feature, db need to be updated using follow SQL by now(we
would get a UI way later):
UPDATE network_offerings SET redundant_router=1 WHERE guest_type="Virtual" AND
system_only=0;
2. System would try to start up two routers at different hosts. But if there is
only one host in the zone, system would start up two routers on it.
3. The failover part is using keepalived, and connection tracking part is using
conntrackd. There would be one master router and one backup router. The status
of router(master or backup) can be query from the database table domain_router
now. Management server would update the status every 30s by default.
4. The routers for the same zone would use same external NIC(same ip and mac).
The script used for fail-over would ensure only one external NIC present in the
network at any time.
5. Currently management server don't got the ability to stop one of router is
both of them reported as master. The feature is in the todo list.
After two routers start up, disconnect anyone of them, the guest network
shouldn't be affected, and established connection(http, ssh, etc.) should still
works. The fail-over on gateway part should be 3~4 seconds.
Currently the patch works with KVM. Would deal with vmware and XenServer soon.
2) Set traffic Type to be Guest for Direct/Virtual non-system default network offerings. Use this guestIpType during the network creation/implementation
status 6689: resolved fixed
Changes to destroyNetwork process. Here are the steps:
* shutdown network - shutdowns all network elements (domRs/Dhcps)
* delete network - destroy all network elements, cleanup network's resources (vlans, ip ranges), mark network with Destroyed state and set Removed field
status 7863: resolved fixed
Router cleanp thread is fixed, here is functionality description:
* Runs every "router.cleanup.interval" period of time (1 day by default)
* Stops only domRs running in Advance zone
* Thread Flow:
- gets all Running domRs/dhcps, get their networks, select network that
has to be checked (see criteria below):
- checks that there is only one nic in the op_networks table for the
network, and this nic belongs to domR/dhcp
- Stops domR/dhcp
* Criteria to choose the network:
- Network has to be non-system.
- Network should be one of the following: Guest Virtual (TrafficType=Guest; GuestType=Virtual); Direct Tagged (TrafficType=Public; GuestType=Direct)
Couple of other fixes:
* Added isShared parameter to listNetworks command
* Moved guestType from NetworkOffering to Network
Sheng Yang
kishan
Murali Reddy
alena
Alex Huang