On 10/05/2016 11:56 AM, Israel Brewster wrote: > As you say, though, this is something I'll simply need to get over if I want > real HA
The sad truth is making simple stupid stuff that Just Works(tm) is not cool. Making stuff that will run a cluster of 1001 randomly mixed active, somewhat-active, mostly-passive, etc. nodes, power-off anything it doesn't like, when that fails: fence it with the Lights-Out Management System Du Jour, when that fails: turn the power off at the networked PDUs... and bring you warmed-up slippers in the morning, now that's cool. And when you ask: if there's only two node and one can't talk to the other, how does it know that it's the other node and not itself that needs to be fenced? The "cool" developers answer: well, we just add a delay so they don't try to fence each other at the same time. D'oh. </rant> I think your problem is centos 6. Either switch to 7 or ditch pacemaker and go heartbeat in haresources mode + mon and a little perl scripting. I'm running both, the haresources version. I get about 1 instance of the scary split brain per 2 cluster/years and almost all of them are caused by me doing something stupid. -- Dimitri Maziuk Programmer/sysadmin BioMagResBank, UW-Madison -- http://www.bmrb.wisc.edu
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