[Pacemaker] cman+qdisk+pacemaker - pacemaker qdisk node offline

Rob pacemaker at rarforge.com
Thu Dec 13 21:37:43 EST 2012


Hey all, first time here.

Two node cluster
Centos 6.3 x86_64
cman-3.0.12.1-32.el6_3.2.x86_64
pacemaker-1.1.7-6.el6.x86_64

I have a two node cluster using qdisk. The 'three' nodes work great so 
far, but I have an issue with pacemaker importing the qdisk as a node 
and showing it offline. As a second issue, the qdisk device seems to 
change after reboots causing pacemaker, when started, to import another 
new qdisk name as an offline node.

Here are the examples:

$ cman_tool nodes
Node  Sts   Inc   Joined               Name
    0   M      0   2012-12-13 09:50:58  /dev/block/8:176
    1   M   1796   2012-12-13 09:50:46  node-1
    3   M   1808   2012-12-13 10:31:59  node-2

now for the fun, crm_mon output: (as you will notice it has old 
/dev/block/<ids> as offline nodes from previous starts)

  $ crm_mon -V1
============
Last updated: Thu Dec 13 18:33:47 2012
Last change: Thu Dec 13 17:52:34 2012 via crm_resource on node-1
Stack: cman
Current DC: node-1 - partition with quorum
Version: 1.1.7-6.el6-148fccfd5985c5590cc601123c6c16e966b85d14
7 Nodes configured, 2 expected votes
38 Resources configured.
============

Online: [ bigeye blindpig ]
OFFLINE: [ /dev/block/8:64 /dev/block/8:208 /dev/block/8:48 
/dev/block/8:176 /dev/block/8:192 ]


1) Is there any way to bring the real qdisk online?
2) Is there something I am missing to not import the qdisk as a node?

Thanks for the time!
Rob




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