[ClusterLabs] GFS2 with Pacemaker, Corosync on Ubuntu 14.04

[Vladislav Bogdanov]

19.01.2016 18:14, Momcilo Medic wrote:
> Dear all,
>
> I am trying to setup GFS2 on two Ubuntu 14.04 servers.
> Every guide I can find online is for 12.04 by using cman package which
> was abandoned in 13.10
>
> So, I tried using Pacemaker with Corosync as instructed on your guide [1].
> In this guide pcs is used which is not available in Ubuntu so I am
> translating commands to crmsh.
>
> I installed everything and noticed bad packaging on DLM which have
> wrong init scripts. I reported [2] this bug to Ubuntu.
> This also might cause DLM not finding the /dev/misc/dlm-control device
> (which is actually located at /dev/dlm-control).
>
> This is the output that I am getting:
> # dlm_controld -D
> 769887 dlm_controld 4.0.1 started
> 769887 our_nodeid 739311650
> 769897 cannot find device /dev/misc/dlm-control with minor 52

Check that dlm's udev rules are installed in the location (lib/udev vs 
/usr/lib/udev) appropriate for your system. That changed recently in the 
upstream dlm.

> 769897 shutdown
> 769897 /sys/kernel/config/dlm/cluster/comms: opendir failed: 2
> 769897 /sys/kernel/config/dlm/cluster/spaces: opendir failed: 2
>
> # lsmod | grep dlm
> dlm                   156389  1 gfs2
> sctp                  247248  3 dlm
> configfs               35358  2 dlm
>
> # ls -hal /dev/dlm*
> crw------- 1 root root 10, 52 Jan 14 17:55 /dev/dlm-control
> crw------- 1 root root 10, 51 Jan 14 17:55 /dev/dlm-monitor
> crw------- 1 root root 10, 50 Jan 14 17:55 /dev/dlm_plock
>
> I checked man dlm, man dlm.conf, man dlm_controld but didn't find
> anywhere an option to specify device location.
>
> Any help would be highly appreciated.
>
> [1] http://clusterlabs.org/doc/en-US/Pacemaker/1.1-crmsh/html-single/Clusters_from_Scratch/index.html#_install_the_cluster_software
> [2] https://bugs.launchpad.net/ubuntu/+source/dlm/+bug/1535242
>
> Kind regards,
> Momcilo 'Momo' Medic.
> (fedorauser)
>
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