Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Actually,
I just found that answer and adding:
---------------------------------------------------------------------------------
disk {
fencing resource-only;
}
handlers {
fence-peer "/usr/lib/drbd/crm-fence-peer.sh";
after-resync-target "/usr/lib/drbd/crm-unfence-peer.sh";
}
---------------------------------------------------------------------------------
On both server DRBD config, fixed the issue.
I now have to configure STONITH in Pacemaker.
Thanx !
Le 2013-06-25 10:22, Digimer a écrit :
> Fencing (stonith) would prevent split-brains from happening. In chapter
> 9 of Clusters from Scratch on the pacemaker website covers how to
> configure fencing. Once setup, configure DRBD to use
> 'resource-and-stonith' and then use the 'crm-fence-peer.sh' fence
> handler to hook DRBD into pacemaker's fencing.
>
> This is the _only_ reliable way to avoid split-brains.
>
> Cheers
>
> On 06/25/2013 09:00 AM, Jonathan-Marc Lapointe wrote:
>> Hi dear list members !
>>
>> I have a procluster project I'm working on right now and I have a little
>> problem I'd like you to help me with.
>>
>> I'm configuring Pacemaker and Corosync.
>>
>> But when pacemaker starts DRBD, it detects a split brain and the status is:
>>
>> drbd driver loaded OK; device status:
>> version: 8.3.13 (api:88/proto:86-96)
>> srcversion: C0F510A918B92928FB51EE3
>> m:res cs ro ds p mounted
>> fstype
>> 0:r0 StandAlone Primary/Unknown UpToDate/DUnknown r-----
>>
>> On both servers.
>>
>> But If I start it using the standard init script, it's all fine.
>>
>> Here are my configs:
>>
>> DRBD:
>> ---------------------------------------------------------------------------------
>> resource r0 {
>> syncer {
>> rate 1000M;
>> }
>> startup {
>> wfc-timeout 15;
>> degr-wfc-timeout 60;
>> become-primary-on both;
>> }
>> net {
>> allow-two-primaries;
>> after-sb-0pri discard-zero-changes;
>> after-sb-1pri discard-secondary;
>> after-sb-2pri disconnect;
>> cram-hmac-alg sha1;
>> shared-secret "secret";
>> }
>> on web1dev {
>> device /dev/drbd0;
>> disk /dev/mapper/groupe1-data;
>> address 192.168.77.212:7789;
>> meta-disk internal;
>> }
>> on web2dev {
>> device /dev/drbd0;
>> disk /dev/mapper/groupe1-data;
>> address 192.168.77.213:7789;
>> meta-disk internal;
>> }
>> }
>> ---------------------------------------------------------------------------------
>>
>> And Pacemaker:
>>
>> ---------------------------------------------------------------------------------
>> primitive p_drbd ocf:linbit:drbd \
>> params drbd_resource="r0" \
>> op start interval="0" timeout="240s" \
>> op promote interval="0" timeout="90s" \
>> op demote interval="0" timeout="90s" \
>> op notify interval="0" timeout="90s" \
>> op stop interval="0" timeout="100s" \
>> op monitor interval="20s" role="Slave" timeout="20s" \
>> op monitor interval="10s" role="Master" timeout="20s"
>> ms ms_drbd p_drbd \
>> meta master-max="2" clone-max="2" notify="true" is-managed="true"
>> ---------------------------------------------------------------------------------
>>
>> What could be possibly wrong ?
>>
>>
>> CCDMD 20 ans !
>>
>> Jonathan-Marc Lapointe
>> Technicien en informatique,
>> Administrateur système,
>> Administrateur réseau
>>
>> Centre collégial de développement de matériel didactique
>> 6220, rue Sherbrooke Est, bureau 404
>> Montréal (Québec) H1N 1C1
>> 514) 864-8443
>> www.ccdmd.qc.ca <http://www.ccdmd.qc.ca>
>> jmlapointe at ccdmd.qc.ca <mailto:jmlapointe at ccdmd.qc.ca>
>> Skype: jmlccdmd
>>
>>
>> _______________________________________________
>> drbd-user mailing list
>> drbd-user at lists.linbit.com
>> http://lists.linbit.com/mailman/listinfo/drbd-user
>>
>
CCDMD 20 ans !
Jonathan-Marc Lapointe
Technicien en informatique,
Administrateur système,
Administrateur réseau
Centre collégial de développement de matériel didactique
6220, rue Sherbrooke Est, bureau 404
Montréal (Québec) H1N 1C1
514) 864-8443
www.ccdmd.qc.ca <http://www.ccdmd.qc.ca>
jmlapointe at ccdmd.qc.ca <mailto:jmlapointe at ccdmd.qc.ca>
Skype: jmlccdmd
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