On Thu, Jun 26, 2008 at 18:14, Adrian Chapela <[EMAIL PROTECTED]> wrote: > Andrew Beekhof escribió: >> >> On Thu, Jun 26, 2008 at 17:08, Adrian Chapela >> <[EMAIL PROTECTED]> wrote: >> >>> >>> Hello, >>> >>> I want to continue talking about this bug >>> http://developerbugs.linux-foundation.org/show_bug.cgi?id=1927 >>> >>> (It is not a bug... but I still have some doubts) >>> >>> >>>> >>>> For some operation, you have specified on_fail=fence. >>>> How can the cluster fence the node if you have stonith turned off? >>>> >>> >>> Yes I have specified fence because I want to stop, poweroff, or any to do >>> a >>> failover to another node when a master node fails. >>> >> >> Except we can't because you don't have the stonith-enabled cluster >> option set to true. >> >> >>> >>> I don't know how I can activate a stonith. Is >>> it possible activate >>> a stonith with heartbeat software ? >>> >> >> http://www.linux-ha.org/ConfiguringStonithPlugins >> > > I think there isn't enough information about configuration ( I think..). I > want to depend off nodes of the cluster only. I think a posibility could be > ssh, but I can't know how. Where is the information about ssh ?
ssh-based stonith, while better than nothing at all IMHO, is still a really bad idea. >> >> >>>> >>>> Yes, you need to wait for 10 minutes _and_ enable stonith. >>>> Without stonith we have no way to clean up after a failed stop. >>>> >>> >>> The problem isn't in stopping operation, is in slaving operation, >>> >> >> In that case, as long as stop can clean up after a failed demote, then >> stonith isn't strictly necessary. >> > > What can I do to solve the failed demote ? I need to inform heartbeat when a > master is failed and in this case heartbeat "demotes" the failed master but > it can't be a slave. A failed master in mysql (and I think in other services > as well) can't be a slave, if it fails, it can't be a slave. > > If I make a master failed in a valid slave, what do heartbeat then ? if it fails as a master (or during promote), we'll demote it. if it fails as a slave (or during demote) we'll stop (and possibly restart) it _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
