On Fri, Apr 1, 2011 at 8:50 AM, Andrew Beekhof <[email protected]> wrote:
> On Fri, Apr 1, 2011 at 4:46 PM, Serge Dubrouski <[email protected]> wrote:
>> On Fri, Apr 1, 2011 at 8:43 AM, Andrew Beekhof <[email protected]> wrote:
>>> On Fri, Apr 1, 2011 at 4:38 PM, Lars Ellenberg
>>> <[email protected]> wrote:
>>>> On Fri, Apr 01, 2011 at 11:35:19AM +0200, Christoph Bartoschek wrote:
>>>>> Am 01.04.2011 11:27, schrieb Florian Haas:
>>>>> > On 2011-04-01 10:49, Christoph Bartoschek wrote:
>>>>> >> Am 01.04.2011 10:27, schrieb Andrew Beekhof:
>>>>> >>> On Sat, Mar 26, 2011 at 12:10 AM, Lars Ellenberg
>>>>> >>> <[email protected]>   wrote:
>>>>> >>>> On Fri, Mar 25, 2011 at 06:18:07PM +0100, Christoph Bartoschek wrote:
>>>>> >>>>> I am missing the state: running degraded or suboptimal.
>>>>> >>>>
>>>>> >>>> Yep, "degraded" is not a state available for pacemaker.
>>>>> >>>> Pacemaker cannot do much about "suboptimal".
>>>>> >>>
>>>>> >>> I wonder what it would take to change that.  I suspect either a
>>>>> >>> crystal ball or way too much knowledge of drbd internals.
>>>>> >>
>>>>> >> The RA would be responsible to check this. For drbd any diskstate
>>>>> >> different from UpToDate/UpToDate is suboptimal.
>>>>> >
>>>>> > Have you actually looked at the resource agent? It does already evaluate
>>>>> > the disk state and adjusts the master preference accordingly. What else
>>>>> > is there to do?
>>>>>
>>>>> Maybe I misunderstood Andrew's comment. I read it this way:  If we
>>>>> introduce a new state "suboptimal", would it be hard to detect it?
>>>
>>> No, detecting is the easy part.
>>>
>>>>> I just wanted to express that detecting suboptimality seems not to be
>>>>> that hard.
>>>>
>>>> But that state is useless for pacemaker,
>>>> since it cannot do anything about it.
>>>
>>> This was the part I was wondering about - if pacemaker _could_ do
>>> something intelligent.
>>
>> Isn't a simple reporting that resource is broken rather than healthy
>> intelligent enough?
>
> But is it completely broken?  Is it broken in a way that pacemaker can
> do something to repair it?

The primary point so far is that current situation is unacceptable for
most of customers. Even if it's half broken or broken to 1/3 it
shouldn't be reported as healthy resource. And as far as I understand
Pacemaker cannot do anything more than that. Fixing this situation, if
possible, would be responsibility of DRBD RA.



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>



-- 
Serge Dubrouski.
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