Just a thought for people using heartbeat and ldirectord. Heartbeat allows for custom bash scripts. So one could use a custom script to shutdown the service and bring up the VIP on the chosen realserver.
Sameer On 10/24/07, David Hinkle <[EMAIL PROTECTED]> wrote: > Oh, just a quick suggestion. This hack would be completely unnecessary if > you could simply configure a backup LVS server not to try and load balance. > I just want a backup to sit there and collect data, I don't want it to try > and load balance anything until I promote it! :) > > David > > > -----Original Message----- > From: [EMAIL PROTECTED] on behalf of Joseph Mack NA3T > Sent: Tue 10/23/2007 7:34 PM > To: LinuxVirtualServer.org users mailing list. > Subject: Re: [lvs-users] FW: Self Configuring High Availability LVS with > Keepalived > > On Tue, 23 Oct 2007, David Hinkle wrote: > > > I'm trying to put together a self configuring high > > availability LVS. Each of my units is a proxy server. > > Each of them is identical, except a little configuration, > > and I intend them to come up, elect a director, and serve > > content. > > this was a highly hoped for goal in the early days of LVS. > The director isn't all that different to a realserver. When > a director fails out, one of the realservers should be able > to take over, presumably automatically. The service > listening on the VIP would have to be shut down on going > from realserver to director. > > However one we got the two director failover working, people > lost interest. One working scheme was enough, at least for > the moment. > > > I notice when I have a unit in BACKUP state, when I do > > "ipvsadm" I see all the lvs stuff is configured in the > > kernel. > > > > Does this mean that the unit will try to do load balancing > > when a connection comes in instead of just ignoring it and > > allowing the proxy server's user space software to process > > it? > > usually a director in backup state doesn't have the VIP, so > there are no packets for it to ignore. If you sent it packet > for the VIP backup director would loadbalance them. > > > If so, Can I configure keepalived in such a way that the > > ipvsadm stuff isn't set up until a unit goes to MASTER? > > it doesn't take any time to setup ipvsadm, so yes. > > > And if so, will the connection state information > > successfully synchronize? > > once the demon starts and lets the partner demon in the > other director know where it is > > Joe > > -- > Joseph Mack NA3T EME(B,D), FM05lw North Carolina > jmack (at) wm7d (dot) net - azimuthal equidistant map > generator at http://www.wm7d.net/azproj.shtml > Homepage http://www.austintek.com/ It's GNU/Linux! > > _______________________________________________ > LinuxVirtualServer.org mailing list - [email protected] > Send requests to [EMAIL PROTECTED] > or go to http://lists.graemef.net/mailman/listinfo/lvs-users > _______________________________________________ LinuxVirtualServer.org mailing list - [email protected] Send requests to [EMAIL PROTECTED] or go to http://lists.graemef.net/mailman/listinfo/lvs-users
