Hi Andrew,

thanks for your explanations.  One more question:

On 30 May 2014 02:38, Andrew Beekhof <and...@beekhof.net> wrote:
>
> On 29 May 2014, at 9:19 pm, Riccardo Murri <riccardo.mu...@gmail.com> wrote:
>
>> - or rather does the `ping` RA trigger failure events when even one of
>>  the nodes cannot be pinged?
>
> both.  it always triggers events when something changes and its up
> to the policy engine to look at your constraints and decide if
> things should be moved.

Would the following be the correct configuration snippet to have
pacemaker ignore occasional ping failures and only react when *no*
hosts can be pinged?

    primitive ping ocf:pacemaker:ping \
        params name=ping dampen=5s multiplier=10 host_list="..." \
        op start timeout=120 \
        op monitor timeout=60 interval=10 on-fail=ignore
                                          ^^^^^^^^^^^^^^

    clone ping_clone ping \
        meta globally-unique=false clone-node-max=1

    [...]

    location mgt-location mgt \
      rule -INFINITY: not_defined ping or ping number:lte 0

Thanks,
Riccardo

--
Riccardo Murri
http://www.gc3.uzh.ch/people/rm

Grid Computing Competence Centre
University of Zurich
Winterthurerstrasse 190, CH-8057 Zürich (Switzerland)
Tel: +41 44 635 4222
Fax: +41 44 635 6888

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