[Pacemaker] Pacemaker+LVM2+DLM+CLVMD under CentOS 5.3

Thu Nov 12 14:39:58 EST 2009

Thanks, Andrew!
/sbin/dlm_controld is provided by cman-2.0.115-1.el5_4.2.x86_64

However I am getting in /var/log/messages a lot of:
"Nov 12 19:36:14 gppst1pbf001 dlm_controld[31980]: connect to ccs error -111, check ccsd or cluster status"

And from ccsd:
"Nov 12 19:38:33 gppst1pbf001 ccsd[16673]: Cluster is not quorate.  Refusing connection.
Nov 12 19:38:33 gppst1pbf001 ccsd[16673]: Error while processing connect: Connection refused
Nov 12 19:38:34 gppst1pbf001 ccsd[16673]: Unable to connect to cluster infrastructure after 2280 seconds."

My speculation here is that while my cluster is Pacemaker the defaults in CentOS expect RedHat clustering.
Do you know how to rewire what is provided by RedHat to the Pacemaker context?

In addition following RedHat cLVMD guide I configured in my lvm.conf:
# Miscellaneous global LVM2 settings
global {
    library_dir =  /usr/lib64 
    locking_library =  liblvm2clusterlock.so 
  <text deleted >
    locking_type = 2
"
But I could find liblvm2clusterlock.so installed -neither can yum find this provided by any package? 

Thanks once again!

./Dimitar Boyn

            From: Andrew Beekhof [mailto:andrew at beekhof.net] 

            Sent: Thursday, November 12, 2009 6:01 AM

             To: pacemaker at clusterlabs.org

             Cc: pacemaker at clusterlabs.org

             Subject: Re: [Pacemaker] Pacemaker+LVM2+DLM+CLVMD under CentOS 5.3

            2009/11/11 Димитър Бойн <dboyn at postpath.com>
            Hi,
            Has anybody successfully configured Pacemaker+LVM2+DLM+CLVMD under CentOS 5.3?

            I don't think the kernel for 5.3 is recent enough.

            The DLM needs 2.6.27 or greater.

                        I am running pacemaker-1.0.4-23.1 previously available from http://download.opensuse.org/repositories/server:/ha-clustering/CentOS_5/x86_64/
                        I need to enable cluster controlled LVM locking.
                        Novel have released a great document at http://www.novell.com/documentation/sle_ha/pdfdoc/book_sleha/book_sleha.pdf
                        -          however CentOS repository is missing the appropriate lvm2-cluster related packages. 
                        I tried "compromising"by using from CentOS:
                        For DLM:
                        cman-2.0.98-1.el5.x86_64.rpm      
                        perl-XML-LibXML-Common-0.13-8.2.2.x86_64.rpm    
                        pexpect-2.3-1.el5.noarch.rpm
                        perl-Net-Telnet-3.03-5.noarch.rpm 
                        perl-XML-NamespaceSupport-1.09-1.2.1.noarch.rpm
                        perl-XML-LibXML-1.58-5.x86_64.rpm 
                        perl-XML-SAX-0.14-5.noarch.rpm

                        For LVM2-Cluster
                        lvm2-2.02.46-8.el5.x86_64.rpm
                        device-mapper-1.02.32-1.el5.i386.rpm   
                        device-mapper-event-1.02.32-1.el5.x86_64.rpm 
                        lvm2-cluster-2.02.46-8.el5.x86_64.rpm
                        device-mapper-1.02.32-1.el5.x86_64.rpm

                        But I fail starting dlm resource

                        primitive dlm ocf:pacemaker:controld \
                               meta target-role= Started 
                        clone dlm-clone dlm \
                               meta target-role= Started interleave= true ordered= true 

                        #crm_verify -LV
                        crm_verify[21447]: 2009/11/11_02:51:05 ERROR: unpack_rsc_op: Hard error - dlm:0_monitor_0 failed with rc=5: Preventing dlm-clone from re-starting on gppst1mlb001
                        crm_verify[21447]: 2009/11/11_02:51:05 ERROR: unpack_rsc_op: Hard error - dlm:0_monitor_0 failed with rc=5: Preventing dlm-clone from re-starting on gppst1pbf001
                        crm_verify[21447]: 2009/11/11_02:51:05 ERROR: unpack_rsc_op: Hard error - dlm:0_monitor_0 failed with rc=5: Preventing dlm-clone from re-starting on gppst1node003

                        Any ideas are highly appreciated!

            Dimitar Boyn            

                         Technical Marketing Engineer            

                         Collaboration Software Group            

	            WebEx Communications, Inc.            

             3979 Freedom Circle            

             Santa Clara, CA 95054            

             United States            

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