[Pacemaker] Errors in configuring cluster project with DRBD and OCFS2, Help !

Thu Jun 20 16:07:25 UTC 2013

----- Original Message -----
> From: "Jake Smith" <jsmith at argotec.com>
> To: "Jonathan-Marc Lapointe" <jmlapointe at ccdmd.qc.ca>
> Cc: "The Pacemaker cluster resource manager" <pacemaker at oss.clusterlabs.org>
> Sent: Thursday, June 20, 2013 12:02:45 PM
> Subject: Re: [Pacemaker] Errors in configuring cluster project with DRBD and OCFS2, Help !
> 
> 
> ----- Original Message -----
> > From: "Jonathan-Marc Lapointe" <jmlapointe at ccdmd.qc.ca>
> > To: "Jake Smith" <jsmith at argotec.com>, "The Pacemaker cluster
> > resource manager" <pacemaker at oss.clusterlabs.org>
> > Sent: Thursday, June 20, 2013 8:27:07 AM
> > Subject: Re: [Pacemaker] Errors in configuring cluster project with
> > DRBD and OCFS2, Help !
> > 
> > Thanx for your response.
> > 
> > I tried to do What you said, I inverted the resource in the
> > colocation statement but it did not fix the problem.
> > 
> > So I deleted the resources one after the other until I had only 2
> > resources.
> > 
> > Then It refused to remove them saying that they where started but I
> > could not stop them and the "crm resource cleanup" command did not
> > allow me to remove them.
> > 
> 
> Did you try to cleanup the ms or primitive resource?  Should cleanup
> on the ms_drbd_ocfs2.
> 
> If that doesn't work (I'm assuming this is a test environment?)
> shutdown both nodes then restart - clears cluster status and starts
> over.
> 
> Do you have stonith configured?
> 
> > Here is my config now:
> > 
> > -------------------------------------------------------------------------------------
> > 
> > primitive p_drbd_ocfs2 ocf:linbit:drbd \
> > params drbd_resource="r0"
> > ms ms_drbd_ocfs2 p_drbd_ocfs2 \
> > meta master-max="2" clone-max="2" target-role="Started"
> > is-managed="true"
> > 
> > -------------------------------------------------------------------------------------
> > 
> > But I still have the following error message:
> > 
> > -------------------------------------------------------------------------------------
> > 
> > Master/Slave Set: ms_drbd_ocfs2 [p_drbd_ocfs2]
> > p_drbd_ocfs2:0 (ocf::linbit:drbd): Slave web1dev (unmanaged) FAILED
> > p_drbd_ocfs2:1 (ocf::linbit:drbd): Slave web2dev (unmanaged) FAILED
> > 
> > Failed actions:
> > p_drbd_ocfs2:1_stop_0 (node=web2dev, call=4, rc=6,
> > status=complete):
> > not configured
> > p_drbd_ocfs2:0_stop_0 (node=web1dev, call=4, rc=6,
> > status=complete):
> > not configured
> > 
> 
> These are usually from attempting to stop a resource and failing to
> succeed at stopping -> ends up failed and unmanaged.
> 
> Logs should tell you why they failed to stop.
> 

One more comment - I missed part of what was going on in the first email.  It looks like you had some sort of failure of drbd and then the cluster was unable to stop drbd successfully.  That caused the drbd failed states.  I'm not sure about the controld failures but I wouldn't worry about that until you get drbd working properly.

Did you test drbd successfully with both in the primary state outside of the cluster first?

> HTH
> 
> Jake
> 
> > -------------------------------------------------------------------------------------
> > 
> > Could you or anyone explain me the errors meaning?
> > 
> > Thanx !
> > 
> > 
> > 
> > Le 2013-06-19 16:16, Jake Smith a écrit :
> > 
> > 
> > ----- Original Message -----
> > 
> > From: "Jonathan-Marc Lapointe" <jmlapointe at ccdmd.qc.ca> To:
> > Pacemaker at oss.clusterlabs.org Sent: Wednesday, June 19, 2013
> > 8:21:03
> > AM
> > Subject: [Pacemaker] Errors in configuring cluster project with
> > DRBD
> > and OCFS2, Help !
> > 
> > Hi,
> > 
> > I have a project I'm working on and I'm stuck right now.
> > 
> > I'm building a cluster of 2 load balanced web server and I'm using
> > DRBD, OCFS2 and Pacemaker/Corosync.
> > 
> > My Problem is with configuring Pacemaker, the rest is working fine.
> > 
> > Here is the config I used to configure my resources:
> > 
> > --------------------------------------------------------------------------------
> > primitive p_drbd_ocfs2 ocf:linbit:drbd \
> > params drbd_resource="ocfs2"
> > ms ms_drbd_ocfs2 p_drbd_ocfs2 \
> > meta master-max=2 clone-max=2
> > primitive p_controld ocf:pacemaker:controld
> > primitive p_o2cb ocf:pacemaker:o2cb
> > group g_ocfs2mgmt p_controld p_o2cb
> > clone cl_ocfs2mgmt g_ocfs2mgmt \
> > meta interleave=true
> > primitive p_fs_ocfs2 ocf:heartbeat:Filesystem \
> > params device="/dev/drbd0" directory="/mnt/data" fstype="ocfs2"
> > options="rw,noatime"
> > clone cl_fs_ocfs2 p_fs_ocfs2
> > order o_ocfs2 inf: ms_drbd_ocfs2:promote cl_ocfs2mgmt:start
> > cl_fs_ocfs2:start
> > colocation c_ocfs2 inf: cl_fs_ocfs2 cl_ocfs2mgmt
> > ms_drbd_ocfs2:Master
> > Pretty sure your problem is this colocation statement.  Try running
> > crm configure show xml c_ocfs2 and see if the order of cl_fs and
> > cl_ocf2mgmt is reversed from what it should be. When you have more
> > than two resources in a colocation statement they become a set and
> > the order of a set is reversed.  This means the colocation is
> > saying
> > that controld must run with o2cb must run with filesystem must run
> > with drbd:Master.
> > 
> > You could just add p_fs_ocfs2 to the end of the g_ocfs2mgmt group
> > instead of being separate (my preference) or reverse the first two
> > resources in the colocation (knowing they are parsed the other way
> > around) or you could write the colocations in two statements with
> > only two resources each.
> > 
> > HTH
> > 
> > Jake
> > 
> > --------------------------------------------------------------------------------
> > 
> > But when I commit it, I get the following errors in crm_mon that I
> > don't understand:
> > 
> > --------------------------------------------------------------------------------
> > ============
> > Last updated: Tue Jun 18 16:36:02 2013
> > Last change: Tue Jun 18 16:36:02 2013 via crm_shadow on web1dev
> > Stack: openais
> > Current DC: web1dev - partition with quorum
> > Version: 1.1.6-9971ebba4494012a93c03b40a2c58ec0eb60f50c
> > 2 Nodes configured, 2 expected votes
> > 8 Resources configured.
> > ============
> > 
> > Online: [ web2dev web1dev ]
> > 
> > Master/Slave Set: ms_drbd_ocfs2 [p_drbd_ocfs2]
> > p_drbd_ocfs2:0 (ocf::linbit:drbd): Slave web1dev (unmanaged) FAILED
> > p_drbd_ocfs2:1 (ocf::linbit:drbd): Slave web2dev (unmanaged) FAILED
> > 
> > Failed actions:
> > p_drbd_ocfs2:0_stop_0 (node=web1dev, call=10, rc=6,
> > status=complete):
> > not configured
> > p_controld:0_monitor_0 (node=web1dev, call=6, rc=5,
> > status=complete):
> > not installed
> > p_drbd_ocfs2:1_stop_0 (node=web2dev, call=10, rc=6,
> > status=complete):
> > not configured
> > p_controld:0_monitor_0 (node=web2dev, call=6, rc=5,
> > status=complete):
> > not installed
> > --------------------------------------------------------------------------------
> > 
> > Any help appreciated !
> > 
> > Thanx !
> > 
> > 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 jmlapointe at ccdmd.qc.ca Skype:
> > jmlccdmd
> > 
> > _______________________________________________
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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
> > _______________________________________________
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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
> > 
> > 
> > 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
> > jmlapointe at ccdmd.qc.ca
> > Skype: jmlccdmd
> > 
> 