I'll read more about the STONITH possibilities to see which is the best approach for our hardware.
Thanks for the fast response, Samuel. 2008/5/20, Joseph Mack NA3T <[EMAIL PROTECTED]>: > > On Tue, 20 May 2008, samuel wrote: > > > I have a simple 2-nodes heartbeat (version 1.2.3) topology and it has > been > > working without failures for more than 2 years so let me first > congratulate > > to all who contributed to this nice piece of software. > > > congratulations on setting up and maintaining an LVS all by > yourself. > > > > Yesterday we faced a problem where the passive node wrongly detected > > that node1 had failed (80% probability due to CPU load, but still > checking > > connectivity) and started acquiring the resources (public IP and > service). > > > this is the difficult split brain situation where neither > node knows the state of the other. The usual solution is for > one of the alive nodes to kill the other machine (STONITH) > bringing the other machine to a known state. Usually this is > via a forced power cycle, so you'll need a power switch/UPS > that can be tripped by a director (you can send a signal to > most UPSs via a serial port). > > Another solution would be to get a faster director so the > two directors stay in contact. > > > > I would like to ask you whether it would be safe to add a > > feature in ip_start function of IPaddr script so everytime > > it is called, no matter if the node is holding the IP, it > > send the gratuitous ARP. This way our problem will not > > happen again because we automatically refresh the router > > ARP table whenever we call ip_start function. > > > this won't work if both directors have the VIP > > > > I know I have an older version of heartbeat, but it has worked so far > pretty > > well and I would prefer to stay with it because our topology is simple > > enough (2 nodes active-passive) to be properly managed by this version. > > > I don't fix (upgrade) code that's working > > 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
