[Pacemaker] Migrate/run resource only if m/s resource is master/promoted on target node (follow-up)

[Martin Gombač]

Hi,

i've replaced /usr/lib/ocf/resource.d/linbit/drbd with version from git 
as you suggested. Lars, you can get a diff if you wish. I've also 
changed preference scores on all definitions.
Resource Hosting (mounted on ms_drbd_r0/primary) still gets restarted if 
_anything_ happens to peer's drbd. By anything i mean changing state 
from primary to secondary and similar.

 >
Dec 30 15:04:01 ibm1 pengine: [14902]: notice: LogActions: Restart 
resource Hosting    (Started ibm1)
Dec 30 15:04:01 ibm1 pengine: [14902]: notice: LogActions: Leave 
resource drbd_r0:0    (Master ibm1)
Dec 30 15:04:01 ibm1 pengine: [14902]: notice: LogActions: Promote 
drbd_r0:1    (Slave -> Master ibm2)
 >

Here is my current config as a whole. If you want i can attach .xml 
version too.
 >
crm(live)# configure show
node $id="3d430f49-b915-4d52-a32b-xxxx" ibm2
node $id="4b2047c8-f3a0-4935-84a2-xxxx" ibm1
primitive Hosting ocf:heartbeat:Xen \
    params xmfile="/etc/xen/Hosting.cfg" \
    meta target-role="Started" allow-migrate="true" is-managed="true" \
    op monitor interval="120s" timeout="300s"
primitive drbd_r0 ocf:linbit:drbd \
    params drbd_resource="r0" \
    op monitor interval="15s" role="Master" timeout="30s" \
    op monitor interval="30s" role="Slave" timeout="30"
ms ms_drbd_r0 drbd_r0 \
    meta notify="true" master-max="2" interleave="true" 
master-node-max="1" is-managed="true" resource-stickines="1000"
location cli-prefer-Hosting Hosting \
    rule $id="cli-prefer-rule-Hosting" 10000: #uname eq ibm1
colocation Hosting_on_ms_drbd_r0 10100: Hosting ms_drbd_r0:Master
order ms_drbd_r0_b4_Hosting 10200: ms_drbd_r0:promote Hosting:start
property $id="cib-bootstrap-options" \
    dc-version="1.0.6-f709c638237cdff7556cb6ab615f32826c0f8c06" \
    cluster-infrastructure="Heartbeat" \
    stonith-enabled="false" \
    no-quorum-policy="ignore" \
    default-resource-stickiness="1000" \
    last-lrm-refresh="1262179462"
 >

I have no idea what else to check/set. If anyone can help me i'll 
appreciate it, if not i'll just remove drbd from cluster and rely only 
on fence-peer and after-resync-target drbd handlers. :-/ However I will 
google a bit, before i do that. :-)

Regards,
M.


Lars Ellenberg wrote:
>
> Just to rule out some glitches we may have had with updating "master scores"
> in the ocf:linbit:drbd RA, please compare and try with the latest
> version of that agent, available at
>  http://git.drbd.org/?p=drbd-8.3.git;a=blob_plain;f=scripts/drbd.ocf;hb=HEAD
>
> Also, try to reduce your "preference" scores to some sane number,
> and not use inf everywhere. give the crm some rope.
>
>