[Pacemaker] Suicide fencing and watchdog questions

[Andrew Beekhof]

> On 29 Nov 2014, at 5:36 pm, Andrei Borzenkov <arvidjaar at gmail.com> wrote:
> 
> В Thu, 27 Nov 2014 08:24:56 +0300
> Vladislav Bogdanov <bubble at hoster-ok.com> пишет:
> 
>> 27.11.2014 03:43, Andrew Beekhof wrote:
>>> 
>>>> On 25 Nov 2014, at 10:37 pm, Vladislav Bogdanov <bubble at hoster-ok.com> wrote:
>>>> 
>>>> Hi,
>>>> 
>>>> Is there any information how watchdog integration is intended to work?
>>>> What are currently-evaluated use-cases for that?
>>>> It seems to be forcibly disabled id SBD is not detected...
>>> 
>>> Are you referring to no-quorum-policy=suicide?
>> 
>> That too.
>> 
>> But main intention was to understand what value that feature can bring
>> at all.
>> I tried to enable it without SBD or no-quorum-policy=suicide and
>> watchdog was not fired up. Then I looked at sources and realized that it
>> is enabled only when SBD is detected, and is not actually managed by the
>> cluster option.
>> 
> 
> It is not enough for a node to kill itself, other nodes need to find out
> whether it has done it. What are other options besides SBD in this case?

Normal fencing devices /could/ be depending on the level of risk you're prepared to accept.