On Fri, Feb 6, 2009 at 3:24 PM, Andrew Beekhof <beek...@gmail.com> wrote:
> > On Feb 6, 2009, at 10:49 AM, Romi Verma wrote: > > > > On Fri, Feb 6, 2009 at 3:09 PM, Andrew Beekhof <beek...@gmail.com> wrote: > >> >> On Feb 6, 2009, at 10:29 AM, Romi Verma wrote: >> >> > i want the partition without quorum to reset the nodes instead of >>> killing . >>> > is it possible. >>> >>> define the difference between reset node and kill node? >>> >>> According to me , killing a node means powering it off but reseting a >>> node means rebooting it. >>> >> >> This is controlled with the stonith-action option >> >> but dont you think in two nodes cluster if we get spilit brain situation >>> both node will try to stonith each other. >>> >> >> which is why two node clusters are good for demonstrations and thats about >> it. >> there are some limited uses for them, but in general you need 3 nodes for >> a sane cluster > > > so do you mean two nodes cluster are not good for production environment > because both will try to stonith each other in spilit brain?? > > > amongst other things. > > even though one side wins the initial "race-to-stonith", if the looser > comes up again and the cause of the split-brain still exists... then they'll > just shoot the "winner" so it can start resources... then that node comes up > and shoots the other host so it can start resources... etc etc > ooh it's so horrible. Cant we do something to overcome this situation or , we will simply suggest not to use 2 nodes cluster at all. > > > > one more question , why we need to configure stonith in two node cluster. > we can always set no-quorum policy to "suicide" > > > which works by using stonith > wow it's interesting. i had no idea that stonith is behind this . i saw some stonith devices by doing stonith -L . so which stonith device should i configure for this. is it stonith -suicide device?? consider I have configured stonith in my cluster . if no-quorum-policy is set to "ignore" then i guess no stonith will be executed and if no-quorum-policy is set to "suicide", "stop" or "freeze" then stonith will be executed. Right?? Hey i must say this is wonderful list. you ppl are really very helpful . Thanks. > > _______________________________________________ > Pacemaker mailing list > Pacemaker@oss.clusterlabs.org > http://oss.clusterlabs.org/mailman/listinfo/pacemaker > >
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