[Pacemaker] Master Slave resource

Thu Dec 9 14:06:00 UTC 2010

Hi! Thanks for your reply!

I make some mistakes in configuration, and now i have againt segfault on
lastest sources(pacemaker-1-0_b0266dd5ffa9) :

Dec  9 16:51:29 storage0 kernel: [  407.923417] pengine[891]: segfault at 8
ip b77289b8 sp bfe38120 error 4 in libpengine.so.3.0.0[b771d000+33000]
Dec  9 16:52:32 storage0 kernel: [  470.943739] pengine[958]: segfault at 8
ip b78479b8 sp bff05cd0 error 4 in libpengine.so.3.0.0[b783c000+33000]
Dec  9 16:53:35 storage0 kernel: [  534.044403] pengine[962]: segfault at 8
ip b77fc9b8 sp bfd1fd50 error 4 in libpengine.so.3.0.0[b77f1000+33000]

i do foollow:
      order o1 inf: ms_drbd_web iscsi

After that, pacemaker go to the  segfault on one node(in my case storage1).
As i understated pacemaker try to commit bad changes and fault, how can i
discard this changes?

2010/12/9 Andrew Beekhof <andrew at beekhof.net>

> On Wed, Dec 8, 2010 at 12:26 PM, ruslan usifov <ruslan.usifov at gmail.com>
> wrote:
> > hello
> >
> > I have 2 node cluster with follow conf:
> > node storage0
> > node storage1
> > primitive drbd_web ocf:linbit:drbd \
> >         params drbd_resource="web" \
> >         op monitor interval="30s" timeout="60s"
> > primitive iscsi_ip ocf:heartbeat:IPaddr2 \
> >         params ip="192.168.17.19" nic="eth1:1" cidr_netmask="24" \
> >         op monitor interval="10s" \
> >         meta target-role="Started"
> > primitive iscsi_web_target ocf:heartbeat:iSCSITarget \
> >         params iqn="iqn.2010-06.playrix.local:san.web"
> implementation="iet"
> > \
> >         op monitor interval="10s" timeout="30s" depth="0" \
> >         meta target-role="Started"
> > primitive iscsi_web_target_lun1 ocf:heartbeat:iSCSILogicalUnit \
> >         params lun="1" path="/dev/drbd1"
> > target_iqn="iqn.2010-06.playrix.local:san.web" implementation="iet" \
> >         op monitor interval="10s" timeout="30s"
> > group iscsi iscsi_ip iscsi_web_target iscsi_web_target_lun1
> > ms ms_drbd_web drbd_web \
> >         meta master-max="1" master-node-max="1" clone-max="2"
> > clone-node-max="1" notify="true" target-role="Started"
> > colocation iscsi_on_drbd inf: ms_drbd_web:Master iscsi
> > order iscsi_target_after_drbd inf: ms_drbd_web:promote iscsi_web_target
> > order iscsi_target_lun_after_iscsi_target inf: iscsi_web_target
> > iscsi_web_target_lun1
> > property $id="cib-bootstrap-options" \
> >         dc-version="1.0.10-b0266dd5ffa9c51377c68b1f29d6bc84367f51dd" \
> >         cluster-infrastructure="openais" \
> >         expected-quorum-votes="2" \
> >         stonith-enabled="false" \
> >         no-quorum-policy="ignore"
> > rsc_defaults $id="rsc-options" \
> >         resource-stickiness="100"
> >
> >
> > after some throbles with pacemaker(segfault in older version in ubuntu) I
> > can not get to work ms_drbd_web. It always show only slaves status:
>
> This says only promote drbd where iscsi group is running:
>     colocation iscsi_on_drbd inf: ms_drbd_web:Master iscsi
>
> And since its only partially active, drbd wont be made a master.
> Perhaps you want:
>    colocation iscsi_on_drbd inf: iscsi ms_drbd_web:Master
>
> > ============
> > Last updated: Tue Dec  7 14:00:13 2010
> > Stack: openais
> > Current DC: storage0 - partition with quorum
> > Version: 1.0.10-b0266dd5ffa9c51377c68b1f29d6bc84367f51dd
> > 2 Nodes configured, 2 expected votes
> > 2 Resources configured.
> > ============
> >
> > Online: [ storage1 storage0 ]
> >
> >  Master/Slave Set: ms_drbd_web
> >      Slaves: [ storage0 storage1 ]
> >  Resource Group: iscsi
> >      iscsi_ip   (ocf::heartbeat:IPaddr2):       Started storage1
> >      iscsi_web_target   (ocf::heartbeat:iSCSITarget):   Started storage1
> >      iscsi_web_target_lun1      (ocf::heartbeat:iSCSILogicalUnit):
> > Stopped
> >
> > Failed actions:
> >     iscsi_web_target_lun1_monitor_0 (node=storage0, call=5, rc=5,
> > status=complete): not installed
> >     iscsi_web_target_monitor_0 (node=storage0, call=4, rc=5,
> > status=complete): not installed
> >     iscsi_web_target_lun1_start_0 (node=storage1, call=13, rc=1,
> > status=complete): unknown error
> >
> > but no split brain situation(nothing about in logs)
> > If i do master selection myself,
> >
> > drbdadm -- --overwrite-data-of-peer primary all
> >
> > pacemaker still switch move to [Slave, Slave]
> >
> > I found follow errors in my corosync.log:
> >
> > ERROR: clone_rsc_order_rh_non_clone: Unknown action:
> > iscsi_web_target_demote_0
> >
> >
> > What i do wrong, and how can i restore drdb to work?
> >
> > _______________________________________________
> > 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://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
> >
> >
>
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>
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs:
> http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
>
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