[Pacemaker] Multistate resources ignore constraints

Florian Haas florian.haas at linbit.com
Mon Jan 3 10:28:05 UTC 2011


On 2011-01-03 10:07, Simon Jansen wrote:
> Hi,
> 
> I have got some multistate resources running. This resources should
> start after the resources resIP (IPaddr2) and resFSys (Filesystem).
> So to accomplish this requirement I defined the following constraints.
> colocation colFSysNTP inf: msNTP:Master resFSys
> colocation colIPNTP inf: msNTP:Master resIP
> order orderFSysNTP inf: resFSys msNTP:promote
> order orderIPNTP inf: resIP msNTP:promote
> 
> The multistate resource is defined as follows:
> primitive resNTP ocf:T-Systems:ntp \
>         params master_config="/mnt/DRBD/drbd1/ntp/cnf/ntp_master.conf"
> slave_config="/etc/ntp.conf" \
>         op monitor interval="10" role="Master" timeout="30" \
>         op monitor interval="12" timeout="31" \
>         op start interval="0" timeout="120" \
>         op stop interval="0" timeout="120"
> ms msNTP resNTP
> 
> The problem is that the multistate resource msNTP tries to promote
> anyways even if the resources resIP and resFSys are not running on a
> cluster node. So the constraints do not take effect at all.
> Is there a solution to control the promotion of multistate resources
> with constraints?

It would help if you shared your ntp resource agent so we can understand
how it updates its master preference.

See also:
http://www.linux-ha.org/doc/dev-guides/_specifying_a_master_preference.html

Florian

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