Hi,
while playin' with Pacemaker and DRBD, I figured out that there's a
little problem with newer DRBD versions (I'm using 8.3.0) and the drbd
resource. (The problem was already described in
http://www.gossamer-threads.com/lists/linuxha/users/53765?do=post_view_threaded#53765,
the solution there was to downgrade DRBD).
Beginning at line 235 of /usr/lib/ocf/resource.d/heartbeat/drbd, the
following commands are used to ensure that DRBD has started in the appr.
state:
DRBD_STATE=$(do_drbdadm state $RESOURCE)
DRBD_STATE_LOCAL=$(echo $DRBD_STATE | sed -e 's#/.*##')
DRBD_STATE_REMOTE=$(echo $DRBD_STATE | sed -e 's#.*/##')
DRBD_CSTATE=$(do_drbdadm cstate $RESOURCE)
The problem here is the first line, because "drbdadm state" changed its
output in DRBD 8.0:
r...@mat-db-2:~$ drbdadm state database
'drbdadm state' is deprecated, use 'drbdadm role' instead.
Unconfigured
r...@mat-db-2:~$
As you see, there's a warning that "state" is deprecated, and "role"
should be used instead in the first line - of course, this is not what
Pacemaker expects, so, it assumes that the start was unsuccessful, and
tries again to start it, which causes "Device is attached to a disk"
errors in the log, because the DRBD is running - but Pacemaker doesn't
"see" it.
I just replaced "state" with "role", this solved the problem for me - of
course, it's not a real solution, maybe the script should detect the
drbd version and then decide to use "role" or "state"...
Hope it helps someone,
have a nice hackin',
hh
--
Harald Husemann
Netzwerk- und Systemadministrator
Operation Management Center (OMC)
MATERNA GmbH
Information & Communications
Westfalendamm 98
44141 Dortmund
Geschäftsführer: Dr. Winfried Materna, Helmut an de Meulen, Ralph Hartwig
Amtsgericht Dortmund HRB 5839
Tel: +49 231 9505 222
Fax: +49 231 9505 100
www.annyway.com <http://www.annyway.com/>
www.materna.com <http://www.materna.com/>
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