On 05/10/2017 12:20 AM, Kristoffer Grönlund wrote: > "Lentes, Bernd" <bernd.len...@helmholtz-muenchen.de> writes: > >> ----- On May 8, 2017, at 9:20 PM, Bernd Lentes >> bernd.len...@helmholtz-muenchen.de wrote: >> >>> Hi, >>> >>> i remember that digimer often campaigns for a fence delay in a 2-node >>> cluster. >>> E.g. here: >>> http://oss.clusterlabs.org/pipermail/pacemaker/2013-July/019228.html >>> In my eyes it makes sense, so i try to establish that. I have two HP >>> servers, >>> each with an ILO card. >>> I have to use the stonith:external/ipmi agent, the stonith:external/riloe >>> refused to work. >>> >>> But i don't have a delay parameter there. >>> crm ra info stonith:external/ipmi: >>> >>> ... >>> pcmk_delay_max (time, [0s]): Enable random delay for stonith actions and >>> specify >>> the maximum of random delay >>> This prevents double fencing when using slow devices such as sbd. >>> Use this to enable random delay for stonith actions and specify the >>> maximum of >>> random delay. >>> ... >>> >>> This is the only delay parameter i can use. But a random delay does not >>> seem to >>> be a reliable solution. >>> >>> The stonith:ipmilan agent also provides just a random delay. Same with the >>> riloe >>> agent. >>> >>> How did anyone solve this problem ? >>> >>> Or do i have to edit the RA (I will get practice in that :-))? >>> >>> >> >> crm ra info stonith:external/ipmi says there exists a parameter >> pcmk_delay_max. >> Having a look in /usr/lib64/stonith/plugins/external/ipmi i don't find >> anything about delay. >> Also "crm_resource --show-metadata=stonith:external/ipmi" does not say >> anything about a delay. >> >> Is this "pcmk_delay_max" not implemented ? From where does "crm ra info >> stonith:external/ipmi" get this info ? >> > > pcmk_delay_max is implemented by Pacemaker. crmsh gets the information > about available parameters by querying stonithd directly. > > Cheers, > Kristoffer
The various pcmk_* parameters are documented in the stonithd(7) man page. Some fence agents implement a delay parameter of their own, to set a fixed delay. I believe that's what digimer uses. >> >> Bernd >> >> >> Helmholtz Zentrum Muenchen >> Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH) >> Ingolstaedter Landstr. 1 >> 85764 Neuherberg >> www.helmholtz-muenchen.de >> Aufsichtsratsvorsitzende: MinDir'in Baerbel Brumme-Bothe >> Geschaeftsfuehrer: Prof. Dr. Guenther Wess, Heinrich Bassler, Dr. Alfons >> Enhsen >> Registergericht: Amtsgericht Muenchen HRB 6466 >> USt-IdNr: DE 129521671 _______________________________________________ Users mailing list: Users@clusterlabs.org http://lists.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