[Pacemaker] running same resource on both nodes through clone

[Dejan Muhamedagic]

Hi,

On Fri, Jun 07, 2013 at 12:49:49PM +0530, ESWAR RAO wrote:
> Hi All,
> 
> I am trying to run same RA on both nodes using clone.
> My set up is a 2 node cluster with HB+pacemaker.
> 
> The RA aren't started automatically.
> They are started through pacemaker only.
> 
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> #crm configure primitive ha_vip ocf:IPaddr2 params ip=192.168.101.205
> cidr_netmask=32 nic=eth1 op monitor interval=30s
> 
> #crm configure primitive oc_d1 lsb::testd1 meta allow-migrate="true"
> migration-threshold="1" failure-timeout="30s" op monitor interval="3s"
> #crm configure clone oc_d1_clone oc_d1 meta clone-max="2"
> clone-node-max="1" globally-unique="false" interleave="true"
> 
> #crm configure primitive oc_d2 lsb::testd2 meta allow-migrate="true"
> migration-threshold="3" failure-timeout="30s" op monitor interval="5s"
> #crm configure clone oc_d2_clone oc_d2 meta clone-max="2"
> clone-node-max="1" globally-unique="false" interleave="true"
> 
> # crm configure colocation oc-ha_vip inf: ha_vip oc_d1_clone oc_d2_clone
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 
> I observe the RAs are not getting started in the other node.
> 
> ha_vip    (ocf::heartbeat:IPaddr2):    Started ubuntu190
> Clone Set: oc_d1_clone [oc_d1]
>      Started: [ ubuntu190 ]
>      Stopped: [ oc_d1:1 ]
>  Clone Set: oc_d2_clone [oc_d2]
>      Started: [ ubuntu190 ]
>      Stopped: [ oc_d2:1 ]
> 
> 
> But if I remove the colocation constraint then the RA are starting on the 2
> nodes.
> But without colocation, if any RA fails the vip will not migrate which is
> bad.

Can you explain why do you need the oc_* resources running both
nodes but at the same time they depend on the IP address which is
not cloned. Looks to me a condition which is simply impossible to
meet.

Thanks,

Dejan

> Can some one help me out in my issue.
> 
> 
> Thanks
> Eswar

> _______________________________________________
> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
> 
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs: http://bugs.clusterlabs.org