[Pacemaker] CLVM & Pacemaker & Corosync on Ubuntu Omeiric Server

Vadim Bulst vadim.bulst at bbz.uni-leipzig.de
Wed Nov 30 11:08:23 UTC 2011 

Hello,

first of all I'd like to ask you a general question:

Does somebody successfully set up a clvm cluster with pacemaker and run it in productive mode?

Now back to the concrete problem:

  I configured two interfaces for corosync:

root at bbzclnode04:~# corosync-cfgtool -s
Printing ring status.
Local node ID 897624256
RING ID 0
     id    = 192.168.128.53
     status    = ring 0 active with no faults
RING ID 1
     id    = 192.168.129.23
     status    = ring 1 active with no faults

RRD set to passive

I also made some changes to my cib:

node bbzclnode04
node bbzclnode06
node bbzclnode07
primitive clvm ocf:lvm2:clvmd \
     params daemon_timeout="30" \
     meta target-role="Started"
primitive dlm ocf:pacemaker:controld \
     meta target-role="Started"
group dlm-clvm dlm clvm
clone dlm-clvm-clone dlm-clvm \
     meta interleave="true" ordered="true"
property $id="cib-bootstrap-options" \
     dc-version="1.1.5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f" \
     cluster-infrastructure="openais" \
     expected-quorum-votes="3" \
     no-quorum-policy="ignore" \
     stonith-enabled="false" \
     last-lrm-refresh="1322643084"

I cleaned and restarted the resources - nothing! :

crm(live)resource# cleanup dlm-clvm-clone
Cleaning up dlm:0 on bbzclnode04
Cleaning up dlm:0 on bbzclnode06
Cleaning up dlm:0 on bbzclnode07
Cleaning up clvm:0 on bbzclnode04
Cleaning up clvm:0 on bbzclnode06
Cleaning up clvm:0 on bbzclnode07
Cleaning up dlm:1 on bbzclnode04
Cleaning up dlm:1 on bbzclnode06
Cleaning up dlm:1 on bbzclnode07
Cleaning up clvm:1 on bbzclnode04
Cleaning up clvm:1 on bbzclnode06
Cleaning up clvm:1 on bbzclnode07
Cleaning up dlm:2 on bbzclnode04
Cleaning up dlm:2 on bbzclnode06
Cleaning up dlm:2 on bbzclnode07
Cleaning up clvm:2 on bbzclnode04
Cleaning up clvm:2 on bbzclnode06
Cleaning up clvm:2 on bbzclnode07
Waiting for 19 replies from the CRMd................... OK

crm_mon:

============
Last updated: Wed Nov 30 10:15:09 2011
Stack: openais
Current DC: bbzclnode04 - partition with quorum
Version: 1.1.5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f
3 Nodes configured, 3 expected votes
1 Resources configured.
============

Online: [ bbzclnode04 bbzclnode06 bbzclnode07 ]


Failed actions:
     clvm:1_start_0 (node=bbzclnode06, call=11, rc=1, status=complete): unknown error
     clvm:0_start_0 (node=bbzclnode04, call=11, rc=1, status=complete): unknown error
     clvm:2_start_0 (node=bbzclnode07, call=11, rc=1, status=complete): unknown error


When I look in the log - there is a message which tells me that may be another clvm process is 
already running - but it isn't so.

"clvmd could not create local socket Another clvmd is probably already running"

Or is it a permission problem - writing to the filesystem? Is there a way to get rid of it?

Shell I use a different distro - our install from source?


Am 24.11.2011 22:59, schrieb Andreas Kurz:
> Hello,
>
> On 11/24/2011 10:12 PM, Vadim Bulst wrote:
>> Hi Andreas,
>>
>> I changed my cib:
>>
>> node bbzclnode04
>> node bbzclnode06
>> node bbzclnode07
>> primitive clvm ocf:lvm2:clvmd \
>>          params daemon_timeout="30"
>> primitive dlm ocf:pacemaker:controld
>> group g_lock dlm clvm
>> clone g_lock-clone g_lock \
>>          meta interleave="true"
>> property $id="cib-bootstrap-options" \
>>          dc-version="1.1.5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f" \
>>          cluster-infrastructure="openais" \
>>          expected-quorum-votes="3" \
>>          no-quorum-policy="ignore" \
>>          stonith-enabled="false" \
>>          last-lrm-refresh="1322049979
>>
>> but no luck at all.
> I assume you did at least a cleanup on clvm and it still does not work
> ... next step would be to grep for ERROR in your cluster log and look
> for other suspicious messages to find out why clvm is not that motivated
> to start.
>
>> "And use Corosync 1.4.x with redundant rings and automatic ring recovery
>> feature enabled."
>>
>> I got two interfaces per server - there are bonded together and bridged
>> for virtualization.  Only one untagged vlan. I tried to give a tagged
>> Vlan Bridge a Address but didn't worked. My network conf looks like that:
> One ore two extra nics are quite affordable today to build e.g. a direct
> connection between the nodes (if possible)
>
> Regards,
> Andreas
>
>
>
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-- 
Mit freundlichen Grüßen

Vadim Bulst
Systemadministrator BBZ

Biotechnologisch-Biomedizinisches Zentrum
Universität Leipzig
Deutscher Platz 5, 04103 Leipzig
Tel.: 0341 97 - 31 307
Fax : 0341 97 - 31 309

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