[ClusterLabs] Antw: Re: Q: Use crm_simulate to simulate stopping maintenance mode?

[Ulrich Windl]

Thanks Lars!

for the records: I thought I could do the thing in hawk of SLES11 SP3, but
that can do only the things crm_simulate can do _directly_; thus no maintenance
mode on.

Actually this is what I get before commit:
# crm
crm(live)# configure
crm(live)configure# property maintenance-mode=off
crm(live)configure# simulate nograph scores actions
WARNING: 2>&1 crm_simulate -x - -S -VVV -s | grep LogActions: | grep -vw Leave
exited with 1
crm(live)configure#

So this means "nothing will happen"? Or does it mean the command failed?

Regards,
Ulrich

>>> Lars Ellenberg <lars.ellenberg at linbit.com> schrieb am 10.06.2015 um 21:50
in
Nachricht <20150610195028.GC7381 at soda.linbit>:
> On Wed, Jun 10, 2015 at 03:01:30PM +0200, Ulrich Windl wrote:
>> Hi!
>> 
>> I wonder: A system is running in maintenance mode. Before disabling
>> maintenance-mode, I'd like to make sure that no node will be fenced as
>> one of the first actions. Is it possible to find out what will happen
>> when maintenance mode is turned off? If so, how? ;-)
> 
> 
> crm configure
> crm(live)configure# property maintenance-mode=off
> crm(live)configure# simulate nograph scores actions
> crm(live)configure# commit
> 
> which does the equivalent of
> cibadmin -Q |
> sed -e
"$some_magic_sed_expression_to_change_or_add_maintenance_mode_setting" 
> |
> crm_simulate -p --run --simulate --show-scores \
> 	--what-not --some-other-stuff
> 
> You get the idea.
> 
> If you happen to have an older crm shell,
> use "ptest" instead of simulate.
> something like
> # ptest vvv
> 
> -- 
> : Lars Ellenberg
> : http://www.LINBIT.com | Your Way to High Availability
> : DRBD, Linux-HA  and  Pacemaker support and consulting
> 
> DRBD® and LINBIT® are registered trademarks of LINBIT, Austria.
> 
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