[Pacemaker] Question regarding a clone resource depending on a multistate resource

[hj lee]

Hi,

I think the drbd RA can not have two masters! So master-max should be one.

Thanks
hj

On Fri, Jul 17, 2009 at 12:49 PM, Michael Schwartzkopff
<misch at multinet.de>wrote:

> Hi,
>
> I configured a multistate DRBD (dual master) and OCFS2 on my cluster. I
> want to
> mount the filesystem where DRBD is master. The following config seems to do
> the
> trick:
>
> primitive resDRBD ocf:linbit:drbd \
>        operations $id="resDRBD-operations" \
>        op monitor interval="20" role="Slave" timeout="20" \
>        op monitor interval="10" role="Master" timeout="20" \
>        params drbd_resource="r0" \
>        meta $id="resDRBD-meta_attributes"
> primitive resOCFS2 ocf:heartbeat:Filesystem \
>        operations $id="resOCFS2-operations" \
>        op monitor interval="20" timeout="40" start-delay="10" \
>        params device="/dev/drbd0" directory="/mnt" fstype="ocfs2"
> ms msDRBD resDRBD \
>        meta clone-max="2" master-max="2" notify="true" master-node-max="1"
> clone-
> node-max="1"
> clone cloneOCFS2 resOCFS2 \
>        meta interleave="true"
> colocation col2OCFSDRBD inf: cloneOCFS2:Started msDRBD:Master
> order ordOCFSDRBD inf: msDRBD:promote cloneOCFS2:start
>
> when I stop one node, everything is OK. When I put that node online again I
> see the following behaviour:
> 1) Make the DRBD in the new-online node slave -> OK.
> 2) Promote the DRBD in the new-online node -> OK.
> 3) STOP both Filesystem resources. NOT OK!
> 4) Start both Filesystem resources.
>
> Please can anybody explain, where my error is? Why do both filesystems
> restart
> after the promotion of the DRBD?
>
> Here are the "LogAction" parts of the log:
> Jul 17 22:30:34 debian2 pengine: [2103]: notice: LogActions: Start
> resDRBD:0#011(debian2)
> Jul 17 22:30:34 debian2 pengine: [2103]: notice: LogActions: Leave resource
> resDRBD:1#011(Master debian)
> Jul 17 22:30:34 debian2 pengine: [2103]: notice: LogActions: Leave resource
> resOCFS2:0#011(Stopped)
> Jul 17 22:30:34 debian2 pengine: [2103]: notice: LogActions: Leave resource
> resOCFS2:1#011(Started debian)
> Jul 17 22:30:38 debian2 pengine: [2103]: notice: LogActions: Promote
> resDRBD:0#011(Slave -> Master debian2)
> Jul 17 22:30:38 debian2 pengine: [2103]: notice: LogActions: Leave resource
> resDRBD:1#011(Master debian)
> Jul 17 22:30:38 debian2 pengine: [2103]: notice: LogActions: Start
> resOCFS2:0#011(debian)
> Jul 17 22:30:38 debian2 pengine: [2103]: notice: LogActions: Move resource
> resOCFS2:1#011(Started debian -> debian2)
> Jul 17 22:30:45 debian2 pengine: [2103]: notice: LogActions: Leave resource
> resDRBD:0#011(Master debian2)
> Jul 17 22:30:45 debian2 pengine: [2103]: notice: LogActions: Leave resource
> resDRBD:1#011(Master debian)
> Jul 17 22:30:45 debian2 pengine: [2103]: notice: LogActions: Start
> resOCFS2:0#011(debian2)
> Jul 17 22:30:45 debian2 pengine: [2103]: notice: LogActions: Start
> resOCFS2:1#011(debian)
>
>
> Why does the cluster migrate the resource resOCFS2:1 from node debian to
> debian2 at 22:30:38?
>
> --
> Dr. Michael Schwartzkopff
> MultiNET Services GmbH
> Addresse: Bretonischer Ring 7; 85630 Grasbrunn; Germany
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>
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Dream with longterm vision!
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