[Pacemaker] Pacemaker cant promote Master/Slave resource

[Andrew Beekhof]

On 4 Jul 2014, at 1:05 am, Bryan Bueter <bryan at bueterfamily.org> wrote:

> I have a two node active/standby cluster that I'm building and I cant get
> pacemaker to promote my DRBD resource.  I'm thinking I have something
> wrong in the configuration but I dont see it.
> 
> The errors I get on NODE1 are:
> /var/log/corosync.log:
> drbd(nfshome-drbd)[24632]:	2014/07/03_10:09:23 ERROR: nfshome: Called
> drbdadm -c /etc/drbd.conf primary nfshome
> drbd(nfshome-drbd)[24632]:	2014/07/03_10:09:23 ERROR: nfshome: Exit code 17
> drbd(nfshome-drbd)[24632]:	2014/07/03_10:09:23 ERROR: nfshome: Command
> output:
> drbd(nfshome-drbd)[24632]:	2014/07/03_10:09:23 CRIT: Refusing to be
> promoted to Primary without UpToDate data
> drbd(nfshome-drbd)[24632]:	2014/07/03_10:09:23 WARNING: promotion failed;
> sleep 15 # to prevent tight recovery loop
> 
> And on NODE2 I get:
> /var/log/corosync.log:
> Jul 03 10:17:17 [510] local2        cib:     info: cib_process_request:
> 	Completed cib_query operation for section
> //cib/status//node_state[@id='1084752206']//transient_attributes//nvpair[@name='master-nfshome-drbd']:
> No such device or address (rc=-6, origin=local/attrd/206,
> version=0.347.284)
> Jul 03 10:17:17 [510] local2        cib:     info: cib_process_request:
> 	Completed cib_apply_diff operation for section status: OK (rc=0,
> origin=local1/attrd/480, version=0.347.285)
> Jul 03 10:17:17 [510] local2        cib:     info: cib_process_request:
> 	Completed cib_apply_diff operation for section status: OK (rc=0,
> origin=local1/crmd/279, version=0.347.286)
> 
> 
> It looks like it does a "drbdadm up nfshome" on local1 but not local2.

Have a look for 'pengine' in the logs... see if pacemaker is intending to do anything on local2 for the drbd resource.
Then look for 'te_rsc_command' and see what actions are being fired off (and in what order)

> 
> 
> Here is the configuration I'm using (applied using: crm configure):
> 
> property stonith-enabled=false
> primitive nfshome-drbd ocf:linbit:drbd params drbd_resource="nfshome" \
>  op monitor interval="29s" role="Master" \
>  op monitor interval="31s" role="Slave"
> ms nfshome-drbd-master nfshome-drbd \
>  meta master-max="1" master-node-max="1" \
>  clone-max="1" clone-node-max="1" \
>  notify="true" target-role="Master"
> primitive nfshome-filesystem \
>  ocf:heartbeat:Filesystem \
>  params device="/dev/drbd/by-res/nfshome" directory="/nfshome" fstype="ext4"
> group nfshome nfshome-filesystem
> colocation nfshome-colocation inf: nfshome nfshome-drbd-master
> order nfshome-order inf: nfshome-drbd-master:promote nfshome:start
> location nfshome-location nfshome \
>  rule $id="nfshome-location-rule" 100: #uname eq local1
> 
> 
> My DRBD config appears to be good:
> 
> root at local1:~# drbdadm up nfshome
> ...
> root at local2:~# drbdadm up nfshome
> root at local2:~# cat /proc/drbd
> version: 8.4.3 (api:1/proto:86-101)
> srcversion: F97798065516C94BE0F27DC
> 
> 2: cs:Connected ro:Secondary/Secondary ds:UpToDate/UpToDate A r-----
>    ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0
> 
> ...
> root at local1:~# drbdadm primary nfshome
> root at local1:~# cat /proc/drbd
> version: 8.4.3 (api:1/proto:86-101)
> srcversion: F97798065516C94BE0F27DC
> 
> 2: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate A r-----
>    ns:0 nr:0 dw:0 dr:728 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0
> 
> 
> so on and so forth.  Local2 has no problems being primary either.
> 
> For reference this is ubuntu server 14.04 with all the latest patches
> (Pacemaker 1.1.10).
> 
> Thanks in advance.
> 
> 
> Bryan
> 
> 
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