Cloud Server HA+LB in NOVA
Our purpose is to provide uninterrupted web services with low cost in OPENSTACK. Due to all instances traffic through Nova-Network host in a basic deployment of NOVA . And it's hard to do HA+LB for Nova-Network. As I know it will be very hard to implement.
After read "Bootstrapping OpenStack Clouds" doc writed by DELL....The fault zone concept it much easier and cheaper.
There're three diagrams ....
I.Two zones topology , share nothing between each zones. But combine two instance network in same network segment. Zone1 using 192.168.1.0/25, Zone2 using 192.168.1.128/25 . We do not using floating ip. Let instance route from Core Network Switch directly.
Hugo, I am running into metadata failure also with a very similar setup. How did you resolve this issue?
ReplyDeleteThanks,
Graham
Could you show me your entire topology for me ?
ReplyDeleteand console output for me ....
the clue is in console output
something like
And the debug skill is , connect my laptop to same network with instance. Then "#curl 169.254.169.254" from your laptop.
The reason of failed might difference. The most issue is instance network can not redirect 169.254.169.254 request to nova-api.
If you use only one nic for nova-network , you can try to turn on PROMISC mode of the interface.
"#ip link set dev br100 promisc on"
Remember the point of this issue is "instance request could not redirect to nova-api server"