I know I am not providing a solution for your problem but when one of
the nodes in the 2 ocfs2 cluster crashed, the 2nd would crash or
freeze all I/O activity on the OCFS2 filesystems for a couple of
minutes.

that behavior went away when I put them under Heartbeat control (I's
stuck with SLES 10), oh! ocfs2 filesystems won't mount on a cluster,
until you provide a stonith config.

best regards,
enrique.



On Tue, Jan 26, 2010 at 6:25 PM, Hunny Bunny <[email protected]> wrote:
> Hello folkz,
>
> I'm very puzzled by the error messages in  my /var/log/warn shown below.
> I'm not using any Pacemaker or Hearbeat CRM at this point.
>
> I have a plain configuration of DRBD which replicates /dev/sda4 as a block 
> device /dev/drbd0 between two nodes node1 and node2
>
> On a top of /dev/drbd0 block I have OCFS2 partition which is mounted on node1 
> and node2
> as /data.
>
> Also /dev/drbd0 is available as iscsi-target from the node2 to the node3
>
> On the node3 using iscsiadm (open-iscsi) I can login into iscsi-target on the 
> node2 which then becomes /dev/sdb on the node3.
>
> Then by executing /etc/init.d/o2cb.init start and  /etc/init.d/ocfs2.init 
> start I can also mount
> /dev/sdb as /data on the node3.
>
> It works and I can access all the files in /data which is shared between 
> these three
>  nodes.
> However, this "...another node is heartbeating in our slot!" warning on the 
> node2 just drives me crazy.
>
> Could somebody please help me to either turn it off or explain what is wrong.
>
> Many thanks in advance,
>
> Alex
>
> messages in /var/log/warn
> <------------ snipped -------------->
>
> Jan 26 13:50:31 node2 kernel: [ 2740.959848] OCFS2 Node Manager 1.5.0
> Jan 26 13:50:31 node2 kernel: [ 2740.961868] OCFS2 DLM 1.5.0
> Jan 26 13:50:31 node2 kernel: [ 2740.962625] ocfs2: Registered cluster 
> interface o2cb
> Jan 26 13:50:31 node2 kernel: [ 2740.974260] OCFS2 DLMFS 1.5.0
> Jan 26 13:50:31 node2 kernel: [ 2740.974331] OCFS2 User DLM kernel interface 
> loaded
> Jan 26 13:50:44 node2 kernel: [ 2753.748066] OCFS2 1.5.0
> Jan 26 13:50:44 node2 kernel: [ 2753.757040] ocfs2_dlm: Nodes in domain 
> ("8B9FFC5A4F12408EA5FC14B7CD1B3E97"): 2
> Jan 26 13:50:44 node2 kernel: [ 2753.821386] ocfs2: Mounting device (147,0) 
> on (node
>  2, slot 0) with ordered data mode.
> Jan
> 26 13:55:01 node2 kernel: [ 3011.010186]
> (3449,0):o2hb_do_disk_heartbeat:768 ERROR: Device "drbd0": another node
> is heartbeating in our slot!
> Jan 26 13:55:03 node2 kernel: [
> 3013.020160] (3449,0):o2hb_do_disk_heartbeat:768 ERROR: Device "drbd0":
> another node is heartbeating in our slot!
> Jan 26 13:55:05 node2
> kernel: [ 3015.030169] (3449,0):o2hb_do_disk_heartbeat:768 ERROR:
> Device "drbd0": another node is heartbeating in our slot!
> Jan 26
> 13:55:07 node2 kernel: [ 3017.040183]
> (3449,0):o2hb_do_disk_heartbeat:768 ERROR: Device "drbd0": another node
> is heartbeating in our slot!
> Jan 26 13:55:09 node2 kernel: [
> 3019.050178] (3449,1):o2hb_do_disk_heartbeat:768 ERROR: Device "drbd0":
> another node is heartbeating in our slot!
> Jan 26 13:55:31 node2
> kernel: [ 3041.010023] (3431,0):o2net_connect_expired:1656 ERROR: no
> connection established with node 3 after 30.0 seconds, giving up and
> returning errors.
>
> <------------ snipped -------------->
>
>
>
> _______________________________________________
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> [email protected]
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> See also: http://linux-ha.org/ReportingProblems
>



-- 
Enrique Sanchez Vela
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