[ClusterLabs] Antwort: Antw: Antwort: Re: reboot node / cluster standby

[philipp.achmueller at arz.at]

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.achmueller at arz.at 
http://www.arz.at 
Landes- als Handelsgericht Innsbruck, FN 38653v 
DVR: 0419427




"Ulrich Windl" <Ulrich.Windl at rz.uni-regensburg.de> schrieb am 06.07.2017 
09:24:12:

> Von: "Ulrich Windl" <Ulrich.Windl at rz.uni-regensburg.de>
> An: <users at clusterlabs.org>
> Datum: 06.07.2017 09:28
> Betreff: [ClusterLabs] Antw:  Antwort: Re:  reboot node / cluster 
standby
> 
> >>> <philipp.achmueller at arz.at> schrieb am 03.07.2017 um 15:30 in 
Nachricht
> <OF2758213A.F6DC56EE-ONC1258152.0046DE1E-C1258152.004A31DF at arz.at>:
> > Ken Gaillot <kgaillot at redhat.com> schrieb am 29.06.2017 21:15:59:
> > 
> >> Von: Ken Gaillot <kgaillot at redhat.com>
> >> An: Ludovic Vaugeois-Pepin <ludovicvp at gmail.com>, Cluster Labs - All
> >> topics related to open-source clustering welcomed 
> > <users at 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 <kgaillot at redhat.com> 
> > wrote:
> >> >> On 06/29/2017 04:42 AM, philipp.achmueller at 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
> 
> 
> 
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