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Ok here goes, I think that I am just a little confused, so any pointers
to docs or other posts are welcome.
I have been reading about LVS for about a week and I think I am
suffering from info overload.
What I have:
Debian Stable (I like getting security patches quick)
Director: Kernel 2.4.18 patched with ipvs 1.0.2
Realservers: Kernel 2.4.22 with hidden-2.4.20pre10-1.diff
Director has two nics, but I am going to remove one, so I want a one
nic setup on the directors (Direct Routing)
2 Webservers
2 DB machines
The loadbalancing is working on the 2 webservers, I have not set it up
on the database servers yet because of concerns about database
connection state and how LVS handles that (or doesn't).
What I want:
Two Virtual servers (Direct Routing):
- 1 for http/apache (loadbalanced) (2 machines, more later)
- 1 for MySQL (simple failover) (2 machines)
Automatic addition/removal from LVS when failure detected
Director Failover (I have two machines for director duty)
What I am confused about:
Director failover:
- I am planning on setting up heartbeat via serial cable.
- Which tool should I use for the takeover? vrrpd, Fake
- ldirectord, keepalived ??? or just mon, hearbeat, fake?
- Do I need connection table synchronization?
http://marc.theaimsgroup.com/?l=linux-virtual-server&m=105459391703228&w=2
- iproute2's advantage over eth0:10 style (is it just an iptables
issue?) ( I know next to nothing about iproute2 )
Automatic addition/removal from LVS:
- mon + script? or is there a better way? ldirector, keepalive??
Again, Thanks for everything, I cant wait to start testing this by
pulling network cables and power plugs (I am running a journaled fs).
Ben Wall
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