On Mon, Sep 27, 2010 at 12:49:16PM -0600, Greg Woods wrote: > On Mon, 2010-09-27 at 09:43 -0700, Robinson, Eric wrote: > > > > > I went so far as to turn off the primary, but the standby still never > > took over. > > Do you have STONITH configured? > > I have run into this too. The primary will not take over unless it is > told somehow that the secondary is really and truly dead. If you have a > real STONITH device such as IPMI, it will cause the secondary to > forcibly power off the primary, providing the guarantee it needs to take > over. On my test cluster where I don't have a working STONITH device > yet, I use the "meatware" pseudo-device, which allows me to run a > program on one node to inform it that the other node is really dead and > that it is OK to take over. > > My old heartbeat v1 clusters used to work just fine without STONITH. > DRBD split brain would occur every once in a while if both nodes lost > power at the same time, but I could live with this. I wouldn't be > surprised if the newer Pacemaker clusters pretty much require STONITH in > order to work. Maybe someone in the know can confirm or deny this?
In a 2 node test using heartbeat + corosync, one can disable stonith with: # crm configure property stonith-enabled=false I've had no trouble migrating resources to the other node when this is set. > --Greg > > > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems -- regards, --tony _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
