[Pacemaker] Behavior booth when the temporary ACT site down happened.

Yuichi SEINO seino.cluster2 at gmail.com
Wed Jul 11 08:46:39 UTC 2012


Hi Jiaju,

2012/7/11 Jiaju Zhang <jjzhang at suse.de>:
> On Wed, 2012-07-11 at 11:47 +0900, Yuichi SEINO wrote:
>> Hi Jiaju,
>>
>> My environment consist of Site A, Site B, and Site C(Arbitrator). And
>> I granted a ticket to Site A. And then I execute Site A down.
>> Secondly, I start up Site A within the expire date.  then the state of
>> Site A is that the ticket is revoked. So Site B is granted after the
>> ticket expired.
>>
>> I would like to know if this behavior is correct.
>>
>> As I see it, If Site A succeed in catchup, Site A should keep a ticket
>> after the ticket expired.
>>
>
> Oh, this should not be a bug, but in the future we may add some
> configuration options or some policy to let it work as what the user
> expected. There is a small window from the original ticket owner decided
> to renew to the ticket expires. Although you get the Site A started
> within the expire date, but it approaches the expire very soon, so no
> enough time to renew that ticket.
>
> Currently that small window is 20% of the expire time, but it should be
> able to be configured by the users. So, in the future development, I'm
> planning to make it configurable and also add more policy on the renew
> logic.
>

For example,  if the expire date is 10 min,  Site A can keep a ticket
when Site A is repaired until 8 min.
Am I correct in thinking this?

However,  I found an another problem when I am looking the log.  Site
A never store a ticket information in cib after Site A is restart.
Tentatively, this log put in bugzilla.

http://bugs.clusterlabs.org/show_bug.cgi?id=5082

Sincerely,
Yuichi
-- 
Yuichi SEINO
METROSYSTEMS CORPORATION
E-mail:seino.cluster2 at gmail.com




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