On Thu, 8 Sep 2016 08:58:15 +0000 Shermal Fernando <sherma...@millenniumit.com> wrote:
> Hi Jehan-Guillaume, > > Does this means watchdog will serf-terminate the machine when the crm daemon > is frozen? This means that if the machine is under such a load that PAcemaker is not able to feed the watchdog, the watchdog will fence the machine itself. > -----Original Message----- > From: Jehan-Guillaume de Rorthais [mailto:j...@dalibo.com] > Sent: Thursday, September 08, 2016 12:52 PM > To: Digimer > Cc: Cluster Labs - All topics related to open-source clustering welcomed > Subject: Re: [ClusterLabs] Antw: Re: When the DC crmd is frozen, cluster > decisions are delayed infinitely > > On Thu, 8 Sep 2016 15:55:50 +0900 > Digimer <li...@alteeve.ca> wrote: > > > On 08/09/16 03:47 PM, Ulrich Windl wrote: > > >>>> Shermal Fernando <sherma...@millenniumit.com> schrieb am > > >>>> 08.09.2016 um > > >>>> 06:41 in > > > Nachricht > > > <8ce6e8d87f896546b9c65ed80d30a4336578c...@lg-spmb-mbx02.lseg.stockex.local>: > > >> The whole cluster will fail if the DC (crm daemon) is frozen due to > > >> CPU starvation or hanging while trying to perform a IO operation. > > >> Please share some thoughts on this issue. > > > > > > What is "the whole cluster will fail"? If the DC times out, some > > > recovery will take place. > > > > Yup. The starved node should be declared lost by corosync, the > > remaining nodes reform and if they're still quorate, the hung node > > should be fenced. Recovery occur and life goes on. > > +1 > > And fencing might either come from outside, or just from the server itself > using watchdog. _______________________________________________ Users mailing list: Users@clusterlabs.org http://clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
