[Pacemaker] Ordering resource groups

[Andrew Beekhof]

On Fri, Jan 11, 2013 at 6:08 PM, aRaviNd <ambadiaravind at gmail.com> wrote:
> Hi,
>
> Yes i am using crm to configure.
>
> Below is the configuration i tried
>
> group icinga_svc mysql ido2db icinga
> group ocfs_fs dlm o2cb clvm vg1 ocfs2-1 ocfs2-2
> clone ocfs-clone ocfs_fs \
>         meta interleave="true" target-role="Started"
>
> crm(live)configure# order svc_aftr_fs inf: ocfs_fs icinga_svc

You can't refer to ocfs_fs once you've cloned it.
Use:

 order svc_aftr_fs inf: ocfs-clone icinga_svc


> crm(live)configure# commit
> crm_verify[13679]: 2013/01/11_07:57:29 ERROR: unpack_order_template: Invalid
> constraint 'svc_aftr_fs': No resource or template named 'ocfs_fs'
> Errors found during check: config not valid
> Do you still want to commit?
>
> Clone configuration is used for making the ocfs filesystem available on both
> the nodes at same time.
>
> I need the icinga_svc to start on first node only if the ocfs_fs is
> available otherwise i need to start the services on second node.
>
> This is what i am trying to acheive with above configuration.
>
> Please let me also know if this can be configured in different way.
>
> Thanks in advance.
>
> Rgds,
> Aravind M D
>
>
>
>
>
> On Thu, Jan 10, 2013 at 1:18 AM, David Vossel <dvossel at redhat.com> wrote:
>>
>>
>>
>> ----- Original Message -----
>> > From: "aRaviNd" <ambadiaravind at gmail.com>
>> > To: pacemaker at oss.clusterlabs.org
>> > Sent: Wednesday, January 9, 2013 9:58:55 AM
>> > Subject: [Pacemaker] Ordering resource groups
>> > Hi,
>> >
>> > I have configured 2 node cluster using pacemaker and corosync in
>> > Debian. One resource group is configured for cluster filesystem
>> > ocfs2 which contain resources dlm, o2cb, clvm etc. This resource
>> > group is cloned to run on both the servers.
>> >
>> > Another resource group is configured for service icinga with
>> > resources mysql, ido2db and icinga.
>> >
>> > I need to configure ordering constraint to start icinga resource
>> > group after ocfs resource group.
>> >
>> > But when i configure the ordering constraint it says no resource or
>> > template by name ocfs resource group name.
>> >
>> > Could you please let me know if it possible to configure ordering
>> > with resource group.
>>
>> Yes, it is definitely possible.
>>
>> http://clusterlabs.org/doc/en-US/Pacemaker/1.1-crmsh/html-single/Pacemaker_Explained/index.html#_group_constraints
>>
>> and
>>
>> http://clusterlabs.org/doc/en-US/Pacemaker/1.1-crmsh/html-single/Pacemaker_Explained/index.html#_clone_constraints
>>
>> shows the xml representation in the cib.
>>
>> Are you using a configuration tool like crm or pcs?  If so this may be a
>> problem with that project.
>>
>> -- Vossel
>>
>>
>> >
>> >
>> > If it is not possible how can i achieve the above configuration.
>> >
>> >
>> > Thanks in advance.
>> >
>> >
>> > Rgds,
>> > Aravind M D
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
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>> >
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>> >
>>
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>
>
>
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>