[Pacemaker] Getting split brain after all reboot of a cluster node

emmanuel segura emi2fast at gmail.com
Wed Mar 5 11:08:11 UTC 2014


i seen this in your pacemaker config

      stonith-enabled="false"


2014-03-05 11:54 GMT+01:00 Anne Nicolas <ennael1 at gmail.com>:

> Le 05/03/2014 11:26, emmanuel segura a écrit :
> > because you don't have fencing configured
>
> As said I've added it in /etc/drbd.d/global_common.conf which is now
>
>      $ cat global_common.conf
>      global {
>              usage-count no;
>              disable-ip-verification;
>       }
>      common {
>      handlers {
>          fence-peer "/usr/lib/drbd/crm-fence-peer.sh";
>          after-resync-target "/usr/lib/drbd/crm-unfence-peer.sh";
>        }
>              syncer { rate 500M; }
> }
>
> but no improvment.
>
> >
> >
> > 2014-03-05 9:28 GMT+01:00 Anne Nicolas <ennael1 at gmail.com
> > <mailto:ennael1 at gmail.com>>:
> >
> >     Hi
> >
> >     I'm having trouble setting a very simple cluster with 2 nodes. After
> all
> >     reboot I'm getting split brain that I have to solve by hand then.
> >     Looking for a solution for that one...
> >
> >     Both nodes have 4 network interfaces. We use 3 of them: one for an IP
> >     cluster, one for a bridge for a vm and the last one for the private
> >     network of the cluster
> >
> >     I'm using
> >     drbd : 8.3.9
> >     drbd-utils: 8.3.9
> >
> >     DRBD configuration:
> >     ============
> >     $ cat global_common.conf
> >     global {
> >             usage-count no;
> >             disable-ip-verification;
> >      }
> >     common { syncer { rate 500M; } }
> >
> >     cat server.res
> >     resource server {
> >             protocol C;
> >             net {
> >                      cram-hmac-alg sha1;
> >                      shared-secret "eafcupps";
> >                 }
> >      on dzacupsvr {
> >         device     /dev/drbd0;
> >         disk       /dev/vg0/server;
> >         address    172.16.1.1:7788 <http://172.16.1.1:7788>;
> >         flexible-meta-disk  internal;
> >       }
> >       on dzacupsvr2 {
> >         device     /dev/drbd0;
> >         disk       /dev/vg0/server;
> >         address    172.16.1.2:7788 <http://172.16.1.2:7788>;
> >         flexible-meta-disk  internal;
> >       }
> >     }
> >
> >     Pacemaker configuration
> >     ===============
> >     node $id="16847020 <tel:16847020>" dzacupsvr
> >     node $id="33624236" dzacupsvr2
> >     primitive apache ocf:heartbeat:apache \
> >             params configfile="/etc/httpd/conf/httpd.conf" \
> >             op start interval="0" timeout="40s" \
> >             op stop interval="0" timeout="60s"
> >     primitive clusterip ocf:heartbeat:IPaddr2 \
> >             params ip="192.168.1.5" cidr_netmask="24" nic="eth0"
> >     primitive drbdserv ocf:linbit:drbd \
> >             params drbd_resource="server" \
> >             op monitor interval="60s"
> >     primitive fsserv ocf:heartbeat:Filesystem \
> >             params device="/dev/drbd/by-res/server"
> directory="/EdgeServer"
> >     fstype="ext4"
> >     primitive libvirt-guests lsb:libvirt-guests
> >     primitive libvirtd lsb:libvirtd
> >     primitive mysql ocf:heartbeat:mysql \
> >             params binary="/usr/bin/mysqld_safe" config="/etc/my.cnf"
> >     datadir="/EdgeServer/mysql" \
> >             op start interval="0" timeout="40s" \
> >             op stop interval="0" timeout="60s" \
> >             meta target-role="Started"
> >     primitive named lsb:named
> >     primitive samba lsb:smb
> >     group services fsserv clusterip libvirtd samba apache mysql
> >     ms drbdservClone drbdserv \
> >             meta master-max="1" master-node-max="1" clone-max="2"
> >     clone-node-max="1" notify="true"
> >     colocation fs_on_drbd inf: fsserv drbdservClone:Master
> >     order fsserv-after-drbdserv inf: drbdservClone:promote fsserv:start
> >     property $id="cib-bootstrap-options" \
> >
> >     dc-version="1.1.7-2.mga1-ee0730e13d124c3d58f00016c3376a1de5323cff" \
> >             cluster-infrastructure="corosync" \
> >             stonith-enabled="false" \
> >             no-quorum-policy="ignore"
> >
> >     and here are the logs
> >     http://pastebin.com/DcV2WM3M
> >
> >     After looking for more information, I've added fences in drbd
> >     configuration
> >
> >     handlers {
> >         fence-peer "/usr/lib/drbd/crm-fence-peer.sh";
> >         after-resync-target "/usr/lib/drbd/crm-unfence-peer.sh";
> >       }
> >     but still without any success...
> >
> >     Any help appreciated
> >
> >     Cheers
> >
> >     --
> >     Anne
> >
> >
> >     --
> >     Anne
> >     http://mageia.org
> >
> >     _______________________________________________
> >     Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
> >     <mailto:Pacemaker at oss.clusterlabs.org>
> >     http://oss.clusterlabs.org/mailman/listinfo/pacemaker
> >
> >     Project Home: http://www.clusterlabs.org
> >     Getting started:
> http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> >     Bugs: http://bugs.clusterlabs.org
> >
> >
> >
> >
> > --
> > esta es mi vida e me la vivo hasta que dios quiera
> >
> >
> > _______________________________________________
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> > http://oss.clusterlabs.org/mailman/listinfo/pacemaker
> >
> > Project Home: http://www.clusterlabs.org
> > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> > Bugs: http://bugs.clusterlabs.org
> >
>
>
> --
> Anne
> http://mageia.org
>
> _______________________________________________
> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs: http://bugs.clusterlabs.org
>



-- 
esta es mi vida e me la vivo hasta que dios quiera
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