[DRBD-user] examples of dual primary DRBD
bart.coninckx at telenet.be
Sat Oct 8 15:55:42 CEST 2011
On 10/08/11 00:25, Lars Ellenberg wrote:
> On Fri, Oct 07, 2011 at 10:21:08PM +0200, Bart Coninckx wrote:
>> On 10/06/11 22:03, Florian Haas wrote:
>>> On 2011-10-06 21:43, Bart Coninckx wrote:
>>>> Hi all,
>>>> would you mind sending me examples of your crm config for a dual primary
>>>> DRBD resource?
>>>> I used the one on
>>>> and on
>>>> and they both result into split brain, except for when I start drbd
>>>> manually first.
>>> They clearly should not. Rather than soliciting other people's
>>> configurations and then try to adapt yours based on that, why don't you
>>> upload _your_ CIB (not just a "crm configure dump", but a full "cibadmin
>>> -Q") and your DRBD configuration to your pastebin/pastie/fpaste and let
>>> people tell you where your problem is?
>> OK, I posted the drbd.conf on http://pastebin.com/SQe9YxhY
>> cibadmin -Q is on http://pastebin.com/gTZqsACq
>> The split brain logging is on http://pastebin.com/7unKKkdi .
> I somehow think you added some "--force" or "--overwrite-data-of-peer"
> to some drbdadm/drbdsetup primary invocation?
>> Could this be some sort of timing issue? Manually things are find,
>> but there are some seconds in between the primary promotions.
OK, seems to be some sort of timing issue. I "fixed" this by adding a
"sleep 1" in the RA right before the "do_drbdadm primary $DRBD_RESOURCE"
I'm surprised though that I'm the first one to run into this.
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