On 07/11/2017 07:34 AM, philipp.achmuel...@arz.at wrote: > > > Mit freundlichen Grüßen / best regards > * > Dipl.-Ing. (FH) Philipp Achmüller* > * > ARZ Allgemeines Rechenzentrum GmbH* > UNIX Systems > > A-6020 Innsbruck, Tschamlerstraße 2 > Tel: +43 / (0)50 4009-1917 _ > __philipp.achmuel...@arz.at _ <mailto:philipp.achmuel...@arz.at>_ > __http://www.arz.at_ <http://www.arz.at/> > Landes- als Handelsgericht Innsbruck, FN 38653v > DVR: 0419427 > _ > _<http://www.arz.at/> > ------------------------------------------------------------------------ > > > "Ulrich Windl" <ulrich.wi...@rz.uni-regensburg.de> schrieb am 06.07.2017 > 09:24:12: > >> Von: "Ulrich Windl" <ulrich.wi...@rz.uni-regensburg.de> >> An: <users@clusterlabs.org> >> Datum: 06.07.2017 09:28 >> Betreff: [ClusterLabs] Antw: Antwort: Re: reboot node / cluster standby >> >> >>> <philipp.achmuel...@arz.at> schrieb am 03.07.2017 um 15:30 in > Nachricht >> <of2758213a.f6dc56ee-onc1258152.0046de1e-c1258152.004a3...@arz.at>: >> > Ken Gaillot <kgail...@redhat.com> schrieb am 29.06.2017 21:15:59: >> > >> >> Von: Ken Gaillot <kgail...@redhat.com> >> >> An: Ludovic Vaugeois-Pepin <ludovi...@gmail.com>, Cluster Labs - All >> >> topics related to open-source clustering welcomed >> > <users@clusterlabs.org> >> >> Datum: 29.06.2017 21:19 >> >> Betreff: Re: [ClusterLabs] reboot node / cluster standby >> >> >> >> On 06/29/2017 01:38 PM, Ludovic Vaugeois-Pepin wrote: >> >> > On Thu, Jun 29, 2017 at 7:27 PM, Ken Gaillot <kgail...@redhat.com> >> > wrote: >> >> >> On 06/29/2017 04:42 AM, philipp.achmuel...@arz.at wrote: >> >> >>> Hi, >> >> >>> >> >> >>> In order to reboot a Clusternode i would like to set the node to >> > standby >> >> >>> first, so a clean takeover for running resources can take in place. >> >> >>> Is there a default way i can set in pacemaker, or do i have to > setup >> > my >> >> >>> own systemd implementation? >> >> >>> >> >> >>> thank you! >> >> >>> regards >> >> >>> ------------------------ >> >> >>> env: >> >> >>> Pacemaker 1.1.15 >> >> >>> SLES 12.2 >> >> >> >> >> >> If a node cleanly shuts down or reboots, pacemaker will move all >> >> >> resources off it before it exits, so that should happen as you're >> >> >> describing, without needing an explicit standby. >> >> > >> > >> > how does this work when evacuating e.g. 5 nodes out of a 10 node > cluster >> > at the same time? >> >> What is the command to to do that? If doing it sequentially, I'd >> wait before the DC returns to IDLE state before starting the next >> command. One rule of cluster is "be patient!" ;-) >> [...] > > on other cluster-software i used the standby function to free several > Nodes from Resources in parallel and issued a distributed shutdown from > my jumphost afterwards. when resource move is beeing initiated during > server shutdown i think i have to do it sequential, or does pacemaker > can handle shutdown command from several nodes parallel? > >> >> Regards, >> Ulrich
Pacemaker can shutdown any number of nodes in parallel, though of course if there is some time between each, there may be unnecessary resource migrations as resources move to a node that is soon to be shut down itself and so have to move again. If they are shut down within a few seconds, Pacemaker will only have to move (or stop) resources once. _______________________________________________ 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
