Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hi,
manual fencing is not recommended for production clusters. You should
really have some fencing device.
You may try to restart xen2, then it should rejoin the cluster properly
or at least 'fence_ack_manual -n xen2' will be safe to answer 'absolutely'
as that is what you did - manually fenced the node :)
On Tue, 09 Aug 2011 12:18:52 +0200, Daniel Meszaros <spam at meszi.de> wrote:
> Hi,
>
> I am trying to set up a dual-primary pair. As I had to learn that XFS
> wasn't able to be run in dual-primary mode I killed one side of the DRBD
> pair and set it up with GFS2. I followed the steps on
> http://www.piemontewireless.net/Storage_on_Cluster_DRBD_and_GFS2 . After
> setting it up I moved all the data from the XFS node to the GFS2 node,
> verified that it's working, killed the XFS data, put GFS2 onto that node
> and synced back.
>
> My current status is that both nodes are in sync running "primary".
> However, I am not able to mount /dev/drbd0 on node 2 ("xen2", the node
> that was just synced). After executing the mount command it stalls until
> I cancel with Ctrl+C.
>
> Possibly the following outputs from node 2 help you helping me...
>
> root at xen2:~# drbd-overview
> 0:drbd-sr1 Connected Primary/Primary UpToDate/UpToDate C r-----
>
> root at xen2:~# tail /var/log/syslog:
> [...]
> Aug 9 11:59:07 xen2 gfs_controld[1960]: daemon cpg_join error retrying
> Aug 9 11:59:09 xen2 fenced[1919]: daemon cpg_join error retrying
> Aug 9 11:59:09 xen2 dlm_controld[1944]: daemon cpg_join error retrying
> [...]
>
> root at xen2:~# cman_tool nodes
> Node Sts Inc Joined Name
> 1 M 104 2011-08-09 11:11:56 xen1
> 2 M 100 2011-08-09 11:11:56 xen2
>
> When googling for the error I found that manual fencing on the properly
> working node would help. However, this can cause file system damage - I
> am a bit curious if I should really do that...
>
> root at xen1:~# fence_ack_manual -n xen2
> About to override fencing for xen2.
> Improper use of this command can cause severe file system damage.
>
> Continue [NO/absolutely]? NO
> Aborted.
>
> Any ideas?
>
> CU,
> Mészi.
>
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